gwt-openlayers-users — Users list. Moderately active.

Re: [Gwt-openlayers-users] Implementing additional Openlayers functions.

[Edwin C. <com...@gm...>]

Hi John,

Have a look at the ModifyFeature control.

>From ModifyFeatureImpl:

    public static native JSObject
createOnModificationStartCallback(OnModificationStartListener
listener)/*-{
        var callback = function(obj){
            var vectorFeatureObj =
@org.gwtopenmaps.openlayers.client.feature.VectorFeature::narrowToVectorFeature(Lorg/gwtopenmaps/openlayers/client/util/JSObject;)(obj);
            listener.@org.gwtopenmaps.openlayers.client.control.ModifyFeature.OnModificationStartListener::onModificationStart(Lorg/gwtopenmaps/openlayers/client/feature/VectorFeature;)(vectorFeatureObj);
        }
        return callback;
    }-*/;


>From ModifyFeatureOptions:

    public void onModificationStart(OnModificationStartListener listener) {
        JSObject callback =
ModifyFeatureImpl.createOnModificationStartCallback(listener);
        getJSObject().setProperty("onModificationStart", callback);
    }

>From ModifyFeature:

    public interface OnModificationStartListener {
        void onModificationStart(VectorFeature vectorFeature);
    }

Greetings,
Edwin

On 2 January 2011 23:48, John Preston <byh...@gm...> wrote:
> Hi, I'm new to gwt-openlayers but I I have been using straight
> openlayers javscript for a few years and I think that port is quit
> good and useful.
>
> I'm looking for a little help to get started to add a few of the
> missing functionality that I use in my code. I need the
> Openlayers.loadURL function to access some xml code on the same server
> as the maps that I'm viewing.
>
> I can add the main function quiet easily but can anyone give me a few
> lines that shows me how to add the callbacks that I need to pass to
> the Openlayers.loadURL function.
>
> John
>
> ------------------------------------------------------------------------------
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Re: [Gwt-openlayers-users] JS issue

[Edwin C. <com...@gm...>]

Hi Fatzopilot,

You might have figured this one out already, but for OSM you indeed
need to include the following extra script:

http://www.openstreetmap.org/openlayers/OpenStreetMap.js

When you look at the source for
http://www.openstreetmap.org/index.html you can deduce that.

There are several ways to include OSM data. These are mentioned on:

http://wiki.openstreetmap.org/wiki/Deploying_your_own_Slippy_Map

An alternative that is not mentioned is serving the data as WMS, or
find a hoster that does :)

Greetings,
Edwin

On 2 January 2011 03:05, fatzopilot <fat...@gm...> wrote:
> Hi list,
>
> there seems to be something wrong with my attempts to get gwt-openlayers
> displaying mapnik generated tiles.
> The showcase runs just fine, I slightly changed it to use a Mapnik backend
> instead of the WMS backend.
> I did pretty much the same as here:
> http://code.google.com/p/dantwining/source/browse/trunk/gwitmap/src/com/dantwining/gwitmap/client/GwitMap.java
> However, I get a "com.google.gwt.core.client.JavaScriptException:
> (TypeError): $wnd.OpenLayers.Layer.OSM.Mapnik" is not a constructor" in
> dev-mode.
> Did I forget to include some JS somewhere or is there another problem?
>
> Thanks
> fatzopilot
>
> ------------------------------------------------------------------------------
> Learn how Oracle Real Application Clusters (RAC) One Node allows customers
> to consolidate database storage, standardize their database environment, and,
> should the need arise, upgrade to a full multi-node Oracle RAC database
> without downtime or disruption
> http://p.sf.net/sfu/oracle-sfdevnl
> _______________________________________________
> Gwt-openlayers-users mailing list
> Gwt...@li...
> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>

[Gwt-openlayers-users] Implementing additional Openlayers functions.

[John P. <byh...@gm...>]

Hi, I'm new to gwt-openlayers but I I have been using straight
openlayers javscript for a few years and I think that port is quit
good and useful.

I'm looking for a little help to get started to add a few of the
missing functionality that I use in my code. I need the
Openlayers.loadURL function to access some xml code on the same server
as the maps that I'm viewing.

I can add the main function quiet easily but can anyone give me a few
lines that shows me how to add the callbacks that I need to pass to
the Openlayers.loadURL function.

John

[Gwt-openlayers-users] JS issue

[fatzopilot <fat...@gm...>]

Hi list,

there seems to be something wrong with my attempts to get gwt-openlayers  
displaying mapnik generated tiles.
The showcase runs just fine, I slightly changed it to use a Mapnik backend  
instead of the WMS backend.
I did pretty much the same as here:  
http://code.google.com/p/dantwining/source/browse/trunk/gwitmap/src/com/dantwining/gwitmap/client/GwitMap.java
However, I get a "com.google.gwt.core.client.JavaScriptException:  
(TypeError): $wnd.OpenLayers.Layer.OSM.Mapnik" is not a constructor" in  
dev-mode.
Did I forget to include some JS somewhere or is there another problem?

Thanks
fatzopilot

[Gwt-openlayers-users] Got NOT_FOUND_ERR on loading simple page

[Alexander S. <aso...@gm...>]

Hello, developers!

I've been starting to use GWT recently and used raw OpenLayers during
a long period. Unfortunately, a simple "Hello, world" with
gwt-openlayers doesn't work. Here is the code:

MapWidget  mw = new MapWidget("350px", "350px");
mapWidget.getMap();
RootLayoutPanel.get().add(mapWidget);

After the page is loaded the following error output is show:

Exception while loading module my.app.client.App. See Development Mode
for details.
java.lang.reflect.InvocationTargetException
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:616)
   at com.google.gwt.dev.shell.ModuleSpace.onLoad(ModuleSpace.java:396)
   at com.google.gwt.dev.shell.OophmSessionHandler.loadModule(OophmSessionHandler.java:183)
   at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:510)
   at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:352)
   at java.lang.Thread.run(Thread.java:636) Caused by:
com.google.gwt.core.client.JavaScriptException: (NOT_FOUND_ERR):
NOT_FOUND_ERR: DOM Exception 8 code: 8
__gwt_ObjectId: 18
INDEX_SIZE_ERR: 1
DOMSTRING_SIZE_ERR: 2
HIERARCHY_REQUEST_ERR: 3
WRONG_DOCUMENT_ERR: 4
INVALID_CHARACTER_ERR: 5
NO_DATA_ALLOWED_ERR: 6
NO_MODIFICATION_ALLOWED_ERR: 7
NOT_FOUND_ERR: 8
NOT_SUPPORTED_ERR: 9
INUSE_ATTRIBUTE_ERR: 10
INVALID_STATE_ERR: 11
SYNTAX_ERR: 12
INVALID_MODIFICATION_ERR: 13
NAMESPACE_ERR: 14
INVALID_ACCESS_ERR: 15
VALIDATION_ERR: 16
TYPE_MISMATCH_ERR: 17
SECURITY_ERR: 18
NETWORK_ERR: 19
ABORT_ERR: 20
URL_MISMATCH_ERR: 21
QUOTA_EXCEEDED_ERR: 22
   at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:237)
   at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:126)
   at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:561)
   at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:269)
   at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
   at com.google.gwt.dom.client.Node$.appendChild$(Node.java)
   at com.google.gwt.layout.client.LayoutImpl.attachChild(LayoutImpl.java:72)
   at com.google.gwt.layout.client.Layout.attachChild(Layout.java:420)
   at com.google.gwt.layout.client.Layout.attachChild(Layout.java:402)
   at com.google.gwt.user.client.ui.LayoutPanel.insert(LayoutPanel.java:191)
   at com.google.gwt.user.client.ui.LayoutPanel.add(LayoutPanel.java:134)
   at my.app.client.App.onModuleLoad(App.java:36)
   ... 9 more

GWT version is 2.1.0
IDE is Eclipse 3.5 with GWT plugin for Eclipse
gwt-openlayers-client-0.5.jar is referenced in project options:
Project -> Properties -> Java Build Path -> Libraries
gwt.xml has "inherits" entry "org.gwtopenmaps.openlayers.OpenLayers"
OpenLayers sources is included via remote script in <head> section

--
Regards, Alexander

Re: [Gwt-openlayers-users] OL-GWT, SmartGWT and rescale problems

[Piotr T. <pi...@cg...>]

Hi Edwin,

Yes I tried but that doesnt work at all (to be honest things are more 
worse when 100% is used). So far the only one solution is to use really 
hard-coded part like this one in OnModuleLoad, which sets some of nested 
SmartGwt's divs:

Element divElement = DOM.getElementById("isc_B");
Style divStyle = divElement.getStyle();
divStyle.setHeight(100, Unit.PCT);
divStyle.setWidth(100, Unit.PCT);
divElement = DOM.getElementById("isc_C");
divStyle = divElement.getStyle();
divStyle.setHeight(100, Unit.PCT);
divStyle.setWidth(100, Unit.PCT);



but one must remember, that all id are generated dynamically by 
SmartGWT. Resize problem doesn't happen on IE and Chrome. So far I'm not 
able to make it run on Opera at all. I'm fighting with this problem 
maybe some solution will be found...  I havent seen any working example 
of any map (no matter OL or GoogleMaps) in SmartGWT showcase (that might 
means something...).

/Piotr


W dniu 2010-12-10 17:39, Edwin Commandeur pisze:
> Hi Piotr,
>
> Have you tried initiating the MapWidget like this:
>
> mapWidget = new MapWidget("100%", "100%", mapOptions);
>
> I haven't checked the SmartGWT forums, but I'd be happy to know if a
> SmartGWT user has a fix for this particular problem. When you use
> SmartGWT then SmartGWT will be in charge of resizing, as not all
> browsers throw resize events for div's. For GWT-OL it is better not to
> know about SmartGWT's resizing, but to get told the new size upon a
> SmartGWT event that triggers a resize.
>
> Greetings,
> Edwin
>
> On 8 December 2010 19:22, Piotr Tracz<pi...@cg...>  wrote:
>> Hello,
>>
>> I recently changed QxWT to SmartGWT and started to play with it.
>> Unfortunately there is pretty big problem with rescaling OL-GWT widget
>> in SmartGWT layout's. Problem seems to be nothing really new as some
>> people are complain about that on SmartGWT's forum (unfortunately  it
>> seems to be ignored).
>>
>>
>> Some code snippets:
>>
>> public class OLMapWidget extends Layout
>> {
>>      final public MapWidget mapWidget;
>>      final MapOptions mapOptions;
>>      final WMSParams mapWMSParams;
>>
>>      public OLMapWidget()
>>      {
>>
>>          mapWMSParams = new WMSParams();
>>          mapOptions = new MapOptions();
>>          mapOptions.setNumZoomLevels(16);
>>          mapOptions.setProjection("EPSG:4326");
>>          mapWidget = new MapWidget("1600", "1080", mapOptions);
>>
>>          mapWMSParams.setFormat("image/png");
>>          mapWMSParams.setLayers("basic");
>>          mapWMSParams.setStyles("");
>>
>>          WMSOptions wmsLayerParams = new WMSOptions();
>>          wmsLayerParams.setTransitionEffect(TransitionEffect.RESIZE);
>>
>>          WMS wmsLayer;
>>
>>          wmsLayer = new WMS(
>>                  "Basic WMS",
>>                  "http://labs.metacarta.com/wms/vmap0",
>>                  mapWMSParams,
>>                  wmsLayerParams);
>>
>>          mapWidget.getMap().addLayers(new Layer[] {wmsLayer});
>>          mapWidget.getMap().setCenter(new LonLat(0, 0), 5);
>>
>>
>>          setWidth100();
>>          setHeight100();
>>          setAlign(Alignment.CENTER);
>>          setOverflow(Overflow.HIDDEN);
>>          setShowResizeBar(true);
>>
>>
>>          this.addChild(mapWidget);
>>
>>          Scheduler.get().scheduleDeferred(new Command()
>>          {
>>              @Override
>>              public void execute()
>>              {
>>                  /*
>>                  String mapHeight = getParentElement().getHeightAsString();
>>                  String mapWidth = getParentElement().getWidthAsString();
>>
>>                  mapWidget.setHeight(mapHeight);
>>                  mapWidget.setWidth(mapWidth);
>>                  */
>>
>>                  mapWidget.setHeight(getHeightAsString());
>>                  mapWidget.setWidth(getWidthAsString());
>>
>>                  mapWidget.getMap().updateSize();
>>              }
>>           });
>>
>>
>>          this.addResizedHandler(  new ResizedHandler()
>>          {
>>              public void onResized( ResizedEvent event )
>>              {
>>                  //mapWidget.setHeight(Integer.toString(getInnerHeight()));
>>                  //mapWidget.setWidth(Integer.toString(getInnerWidth()));
>>                  mapWidget.setWidth(getWidthAsString());
>>                  mapWidget.setHeight(getHeightAsString());
>>                  mapWidget.getMap().updateSize();
>>              }
>>          } ) ;
>>      }
>> }
>>
>> public class Application implements EntryPoint {
>>
>>      public void onModuleLoad() {
>>
>>
>>          VLayout mainLayout = new VLayout();
>>          mainLayout.setWidth100();
>>          mainLayout.setHeight100();
>>          mainLayout.addMember(ViewHelper.createToolBar());
>>
>>          HLayout layout1 = new HLayout();
>>          layout1.setWidth100();
>>          layout1.addMember(ViewHelper.createLayerPanel());
>>          final VLayout layout2 = new VLayout();
>>          layout2.setHeight100();
>>          layout2.setOverflow(Overflow.HIDDEN);
>>          layout2.addMember (new OLMapWidget());
>>
>>
>>
>>
>>
>>
>>          layout2.addMember(ViewHelper.createTablePanel());
>>          layout1.addMember(layout2);
>>          mainLayout.addMember(layout1);
>>          //
>>          mainLayout.addMember(ViewHelper.createStatusBar());
>>          mainLayout.draw();
>>      }
>>
>>
>> }
>>
>> All is working ok unless browser windows is started as small and then
>> expanded to bigger size - in that case OL-GWT widget size is always the
>> same small.
>> I guess its SmartGWT problem and the easiest way is saying bye bye to
>> SmartGWT but maybe someone have some hack to override this problem (I
>> know I can use ugly hack to manually change size of DIV but that doesnt
>> look like good solution).
>>
>> /Peter
>>
>>
>>
>>
>>
>> ------------------------------------------------------------------------------
>> This SF Dev2Dev email is sponsored by:
>>
>> WikiLeaks The End of the Free Internet
>> http://p.sf.net/sfu/therealnews-com
>> _______________________________________________
>> Gwt-openlayers-users mailing list
>> Gwt...@li...
>> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>>
>

Re: [Gwt-openlayers-users] OL-GWT, SmartGWT and rescale problems

[Jon B. <jon...@go...>]

I've got this same issue. I get 100% width, but it only allows me.to set a
fixed height, otherwise it ends up 0 pixels.
Jon
On 10 Dec 2010 16:39, "Edwin Commandeur" <com...@gm...> wrote:
> Hi Piotr,
>
> Have you tried initiating the MapWidget like this:
>
> mapWidget = new MapWidget("100%", "100%", mapOptions);
>
> I haven't checked the SmartGWT forums, but I'd be happy to know if a
> SmartGWT user has a fix for this particular problem. When you use
> SmartGWT then SmartGWT will be in charge of resizing, as not all
> browsers throw resize events for div's. For GWT-OL it is better not to
> know about SmartGWT's resizing, but to get told the new size upon a
> SmartGWT event that triggers a resize.
>
> Greetings,
> Edwin
>
> On 8 December 2010 19:22, Piotr Tracz <pi...@cg...> wrote:
>> Hello,
>>
>> I recently changed QxWT to SmartGWT and started to play with it.
>> Unfortunately there is pretty big problem with rescaling OL-GWT widget
>> in SmartGWT layout's. Problem seems to be nothing really new as some
>> people are complain about that on SmartGWT's forum (unfortunately  it
>> seems to be ignored).
>>
>>
>> Some code snippets:
>>
>> public class OLMapWidget extends Layout
>> {
>>     final public MapWidget mapWidget;
>>     final MapOptions mapOptions;
>>     final WMSParams mapWMSParams;
>>
>>     public OLMapWidget()
>>     {
>>
>>         mapWMSParams = new WMSParams();
>>         mapOptions = new MapOptions();
>>         mapOptions.setNumZoomLevels(16);
>>         mapOptions.setProjection("EPSG:4326");
>>         mapWidget = new MapWidget("1600", "1080", mapOptions);
>>
>>         mapWMSParams.setFormat("image/png");
>>         mapWMSParams.setLayers("basic");
>>         mapWMSParams.setStyles("");
>>
>>         WMSOptions wmsLayerParams = new WMSOptions();
>>         wmsLayerParams.setTransitionEffect(TransitionEffect.RESIZE);
>>
>>         WMS wmsLayer;
>>
>>         wmsLayer = new WMS(
>>                 "Basic WMS",
>>                 "http://labs.metacarta.com/wms/vmap0",
>>                 mapWMSParams,
>>                 wmsLayerParams);
>>
>>         mapWidget.getMap().addLayers(new Layer[] {wmsLayer});
>>         mapWidget.getMap().setCenter(new LonLat(0, 0), 5);
>>
>>
>>         setWidth100();
>>         setHeight100();
>>         setAlign(Alignment.CENTER);
>>         setOverflow(Overflow.HIDDEN);
>>         setShowResizeBar(true);
>>
>>
>>         this.addChild(mapWidget);
>>
>>         Scheduler.get().scheduleDeferred(new Command()
>>         {
>>             @Override
>>             public void execute()
>>             {
>>                 /*
>>                 String mapHeight =
getParentElement().getHeightAsString();
>>                 String mapWidth = getParentElement().getWidthAsString();
>>
>>                 mapWidget.setHeight(mapHeight);
>>                 mapWidget.setWidth(mapWidth);
>>                 */
>>
>>                 mapWidget.setHeight(getHeightAsString());
>>                 mapWidget.setWidth(getWidthAsString());
>>
>>                 mapWidget.getMap().updateSize();
>>             }
>>          });
>>
>>
>>         this.addResizedHandler(  new ResizedHandler()
>>         {
>>             public void onResized( ResizedEvent event )
>>             {
>>
//mapWidget.setHeight(Integer.toString(getInnerHeight()));
>>                 //mapWidget.setWidth(Integer.toString(getInnerWidth()));
>>                 mapWidget.setWidth(getWidthAsString());
>>                 mapWidget.setHeight(getHeightAsString());
>>                 mapWidget.getMap().updateSize();
>>             }
>>         } ) ;
>>     }
>> }
>>
>> public class Application implements EntryPoint {
>>
>>     public void onModuleLoad() {
>>
>>
>>         VLayout mainLayout = new VLayout();
>>         mainLayout.setWidth100();
>>         mainLayout.setHeight100();
>>         mainLayout.addMember(ViewHelper.createToolBar());
>>
>>         HLayout layout1 = new HLayout();
>>         layout1.setWidth100();
>>         layout1.addMember(ViewHelper.createLayerPanel());
>>         final VLayout layout2 = new VLayout();
>>         layout2.setHeight100();
>>         layout2.setOverflow(Overflow.HIDDEN);
>>         layout2.addMember (new OLMapWidget());
>>
>>
>>
>>
>>
>>
>>         layout2.addMember(ViewHelper.createTablePanel());
>>         layout1.addMember(layout2);
>>         mainLayout.addMember(layout1);
>>         //
>>         mainLayout.addMember(ViewHelper.createStatusBar());
>>         mainLayout.draw();
>>     }
>>
>>
>> }
>>
>> All is working ok unless browser windows is started as small and then
>> expanded to bigger size - in that case OL-GWT widget size is always the
>> same small.
>> I guess its SmartGWT problem and the easiest way is saying bye bye to
>> SmartGWT but maybe someone have some hack to override this problem (I
>> know I can use ugly hack to manually change size of DIV but that doesnt
>> look like good solution).
>>
>> /Peter
>>
>>
>>
>>
>>
>>
------------------------------------------------------------------------------
>> This SF Dev2Dev email is sponsored by:
>>
>> WikiLeaks The End of the Free Internet
>> http://p.sf.net/sfu/therealnews-com
>> _______________________________________________
>> Gwt-openlayers-users mailing list
>> Gwt...@li...
>> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>>
>
>
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Re: [Gwt-openlayers-users] OL-GWT, SmartGWT and rescale problems

[Edwin C. <com...@gm...>]

Hi Piotr,

Have you tried initiating the MapWidget like this:

mapWidget = new MapWidget("100%", "100%", mapOptions);

I haven't checked the SmartGWT forums, but I'd be happy to know if a
SmartGWT user has a fix for this particular problem. When you use
SmartGWT then SmartGWT will be in charge of resizing, as not all
browsers throw resize events for div's. For GWT-OL it is better not to
know about SmartGWT's resizing, but to get told the new size upon a
SmartGWT event that triggers a resize.

Greetings,
Edwin

On 8 December 2010 19:22, Piotr Tracz <pi...@cg...> wrote:
> Hello,
>
> I recently changed QxWT to SmartGWT and started to play with it.
> Unfortunately there is pretty big problem with rescaling OL-GWT widget
> in SmartGWT layout's. Problem seems to be nothing really new as some
> people are complain about that on SmartGWT's forum (unfortunately  it
> seems to be ignored).
>
>
> Some code snippets:
>
> public class OLMapWidget extends Layout
> {
>     final public MapWidget mapWidget;
>     final MapOptions mapOptions;
>     final WMSParams mapWMSParams;
>
>     public OLMapWidget()
>     {
>
>         mapWMSParams = new WMSParams();
>         mapOptions = new MapOptions();
>         mapOptions.setNumZoomLevels(16);
>         mapOptions.setProjection("EPSG:4326");
>         mapWidget = new MapWidget("1600", "1080", mapOptions);
>
>         mapWMSParams.setFormat("image/png");
>         mapWMSParams.setLayers("basic");
>         mapWMSParams.setStyles("");
>
>         WMSOptions wmsLayerParams = new WMSOptions();
>         wmsLayerParams.setTransitionEffect(TransitionEffect.RESIZE);
>
>         WMS wmsLayer;
>
>         wmsLayer = new WMS(
>                 "Basic WMS",
>                 "http://labs.metacarta.com/wms/vmap0",
>                 mapWMSParams,
>                 wmsLayerParams);
>
>         mapWidget.getMap().addLayers(new Layer[] {wmsLayer});
>         mapWidget.getMap().setCenter(new LonLat(0, 0), 5);
>
>
>         setWidth100();
>         setHeight100();
>         setAlign(Alignment.CENTER);
>         setOverflow(Overflow.HIDDEN);
>         setShowResizeBar(true);
>
>
>         this.addChild(mapWidget);
>
>         Scheduler.get().scheduleDeferred(new Command()
>         {
>             @Override
>             public void execute()
>             {
>                 /*
>                 String mapHeight = getParentElement().getHeightAsString();
>                 String mapWidth = getParentElement().getWidthAsString();
>
>                 mapWidget.setHeight(mapHeight);
>                 mapWidget.setWidth(mapWidth);
>                 */
>
>                 mapWidget.setHeight(getHeightAsString());
>                 mapWidget.setWidth(getWidthAsString());
>
>                 mapWidget.getMap().updateSize();
>             }
>          });
>
>
>         this.addResizedHandler(  new ResizedHandler()
>         {
>             public void onResized( ResizedEvent event )
>             {
>                 //mapWidget.setHeight(Integer.toString(getInnerHeight()));
>                 //mapWidget.setWidth(Integer.toString(getInnerWidth()));
>                 mapWidget.setWidth(getWidthAsString());
>                 mapWidget.setHeight(getHeightAsString());
>                 mapWidget.getMap().updateSize();
>             }
>         } ) ;
>     }
> }
>
> public class Application implements EntryPoint {
>
>     public void onModuleLoad() {
>
>
>         VLayout mainLayout = new VLayout();
>         mainLayout.setWidth100();
>         mainLayout.setHeight100();
>         mainLayout.addMember(ViewHelper.createToolBar());
>
>         HLayout layout1 = new HLayout();
>         layout1.setWidth100();
>         layout1.addMember(ViewHelper.createLayerPanel());
>         final VLayout layout2 = new VLayout();
>         layout2.setHeight100();
>         layout2.setOverflow(Overflow.HIDDEN);
>         layout2.addMember (new OLMapWidget());
>
>
>
>
>
>
>         layout2.addMember(ViewHelper.createTablePanel());
>         layout1.addMember(layout2);
>         mainLayout.addMember(layout1);
>         //
>         mainLayout.addMember(ViewHelper.createStatusBar());
>         mainLayout.draw();
>     }
>
>
> }
>
> All is working ok unless browser windows is started as small and then
> expanded to bigger size - in that case OL-GWT widget size is always the
> same small.
> I guess its SmartGWT problem and the easiest way is saying bye bye to
> SmartGWT but maybe someone have some hack to override this problem (I
> know I can use ugly hack to manually change size of DIV but that doesnt
> look like good solution).
>
> /Peter
>
>
>
>
>
> ------------------------------------------------------------------------------
> This SF Dev2Dev email is sponsored by:
>
> WikiLeaks The End of the Free Internet
> http://p.sf.net/sfu/therealnews-com
> _______________________________________________
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>

[Gwt-openlayers-users] OL-GWT, SmartGWT and rescale problems

[Piotr T. <pi...@cg...>]

Hello,

I recently changed QxWT to SmartGWT and started to play with it. 
Unfortunately there is pretty big problem with rescaling OL-GWT widget 
in SmartGWT layout's. Problem seems to be nothing really new as some 
people are complain about that on SmartGWT's forum (unfortunately  it 
seems to be ignored).


Some code snippets:

public class OLMapWidget extends Layout
{
     final public MapWidget mapWidget;
     final MapOptions mapOptions;
     final WMSParams mapWMSParams;

     public OLMapWidget()
     {

         mapWMSParams = new WMSParams();
         mapOptions = new MapOptions();
         mapOptions.setNumZoomLevels(16);
         mapOptions.setProjection("EPSG:4326");
         mapWidget = new MapWidget("1600", "1080", mapOptions);

         mapWMSParams.setFormat("image/png");
         mapWMSParams.setLayers("basic");
         mapWMSParams.setStyles("");

         WMSOptions wmsLayerParams = new WMSOptions();
         wmsLayerParams.setTransitionEffect(TransitionEffect.RESIZE);

         WMS wmsLayer;

         wmsLayer = new WMS(
                 "Basic WMS",
                 "http://labs.metacarta.com/wms/vmap0",
                 mapWMSParams,
                 wmsLayerParams);

         mapWidget.getMap().addLayers(new Layer[] {wmsLayer});
         mapWidget.getMap().setCenter(new LonLat(0, 0), 5);


         setWidth100();
         setHeight100();
         setAlign(Alignment.CENTER);
         setOverflow(Overflow.HIDDEN);
         setShowResizeBar(true);


         this.addChild(mapWidget);

         Scheduler.get().scheduleDeferred(new Command()
         {
             @Override
             public void execute()
             {
                 /*
                 String mapHeight = getParentElement().getHeightAsString();
                 String mapWidth = getParentElement().getWidthAsString();

                 mapWidget.setHeight(mapHeight);
                 mapWidget.setWidth(mapWidth);
                 */

                 mapWidget.setHeight(getHeightAsString());
                 mapWidget.setWidth(getWidthAsString());

                 mapWidget.getMap().updateSize();
             }
          });


         this.addResizedHandler(  new ResizedHandler()
         {
             public void onResized( ResizedEvent event )
             {
                 //mapWidget.setHeight(Integer.toString(getInnerHeight()));
                 //mapWidget.setWidth(Integer.toString(getInnerWidth()));
                 mapWidget.setWidth(getWidthAsString());
                 mapWidget.setHeight(getHeightAsString());
                 mapWidget.getMap().updateSize();
             }
         } ) ;
     }
}

public class Application implements EntryPoint {

     public void onModuleLoad() {


         VLayout mainLayout = new VLayout();
         mainLayout.setWidth100();
         mainLayout.setHeight100();
         mainLayout.addMember(ViewHelper.createToolBar());

         HLayout layout1 = new HLayout();
         layout1.setWidth100();
         layout1.addMember(ViewHelper.createLayerPanel());
         final VLayout layout2 = new VLayout();
         layout2.setHeight100();
         layout2.setOverflow(Overflow.HIDDEN);
         layout2.addMember (new OLMapWidget());






         layout2.addMember(ViewHelper.createTablePanel());
         layout1.addMember(layout2);
         mainLayout.addMember(layout1);
         //
         mainLayout.addMember(ViewHelper.createStatusBar());
         mainLayout.draw();
     }


}

All is working ok unless browser windows is started as small and then 
expanded to bigger size - in that case OL-GWT widget size is always the 
same small.
I guess its SmartGWT problem and the easiest way is saying bye bye to 
SmartGWT but maybe someone have some hack to override this problem (I 
know I can use ugly hack to manually change size of DIV but that doesnt 
look like good solution).

/Peter

Re: [Gwt-openlayers-users] OpenLayers, MapServer, and IE

[Hutchins, M. C. <cha...@nr...>]

Andrew,

 

PNG with IE versions 7 and 8. 

 

Thanks,

Chad

 

From: Andrew Hughes [mailto:ahh...@gm...] 
Sent: Tuesday, December 07, 2010 6:45 PM
To: gwt...@li...
Subject: Re: [Gwt-openlayers-users] OpenLayers, MapServer, and IE

 

What image format are you using and what version of IE are you running? IE6
doesn't support transparent png.

 

On Tue, Nov 30, 2010 at 9:30 AM, Hutchins, Mr. Chad
<cha...@nr...> wrote:

I am constantly experiencing pink tiles in Internet Explorer (no problems
with Firefox or Chrome) using OpenLayers-GWT and MapServer. Has anyone else
experienced these issues? Were you able to solve the issue and how?

 

Thanks,

 

Chad Hutchins

Meteorologist

Naval Research Laboratory

Marine Meteorology Division

 


----------------------------------------------------------------------------
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_______________________________________________
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https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users

 

Re: [Gwt-openlayers-users] OpenLayers, MapServer, and IE

[Andrew H. <ahh...@gm...>]

What image format are you using and what version of IE are you running? IE6
doesn't support transparent png.


On Tue, Nov 30, 2010 at 9:30 AM, Hutchins, Mr. Chad <
cha...@nr...> wrote:

> I am constantly experiencing pink tiles in Internet Explorer (no problems
> with Firefox or Chrome) using OpenLayers-GWT and MapServer. Has anyone else
> experienced these issues? Were you able to solve the issue and how?
>
>
>
> Thanks,
>
>
>
> Chad Hutchins
>
> Meteorologist
>
> Naval Research Laboratory
>
> Marine Meteorology Division
>
>
>
>
> ------------------------------------------------------------------------------
> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
> Tap into the largest installed PC base & get more eyes on your game by
> optimizing for Intel(R) Graphics Technology. Get started today with the
> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
> http://p.sf.net/sfu/intelisp-dev2dev
> _______________________________________________
> Gwt-openlayers-users mailing list
> Gwt...@li...
> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>
>

[Gwt-openlayers-users] Google base layer

[Johannes B. <joh...@gm...>]

Hi,

I am new to GWT and gwt-openlayers, and facing the same problem described here: http://sourceforge.net/mailarchive/message.php?msg_id=4864d1ca0907061447m1b86e3agf25ed67541e02f9%40mail.gmail.com
Is there any news to this? Is there a workaround?

Thank you,
Johannes
-- 
Neu: GMX De-Mail - Einfach wie E-Mail, sicher wie ein Brief!  
Jetzt De-Mail-Adresse reservieren: http://portal.gmx.net/de/go/demail

[Gwt-openlayers-users] OpenLayers, MapServer, and IE

[Hutchins, M. C. <cha...@nr...>]

I am constantly experiencing pink tiles in Internet Explorer (no
problems with Firefox or Chrome) using OpenLayers-GWT and MapServer. Has
anyone else experienced these issues? Were you able to solve the issue
and how?

 

Thanks,

 

Chad Hutchins

Meteorologist

Naval Research Laboratory

Marine Meteorology Division

 

Re: [Gwt-openlayers-users] MapClickListener support

[Jon B. <jon...@go...>]

Hi Edwin,

You're right, I've added the proxy and now it works fine.

Thanks for the help.

Jon

On 29 November 2010 10:56, Edwin Commandeur <com...@gm...>wrote:

> Hi Jon,
>
> I think the essential line is:
> Origin http://127.0.0.1:8888 is not allowed by Access-Control-Allow-Origin
>
> Are you setting the OpenLayers proxyHost to use the proxy servlet from
> GWT-OL server? The example in the showcase application should be
> working and shows how to set the proxyHost.
>
> What I don't get is that the request is sent to the server, because I
> would expect the browser to not send any cross-domain requests if
> these are not allowed from the application.
>
> Greetings,
> Edwin
>
>
> On 29 November 2010 10:54, Jon Britton <jon...@go...> wrote:
> > Sorry if I wasn't clear in my previous email, but the server is actually
> > receiving and dealing with the request.  I've tried another remote server
> > and I get the same problem.  I've debugged the website with Chrome, and
> it
> > just hangs when making the request - it says "pending" under Status.
> >  However, the Chrome debugging console shows the following errors:
> > XMLHttpRequest cannot load
> >
> http://localhost:8080/geoserver/wms?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetFeatureInfo&LAYERS=topp%3Atasmania_state_boundaries&QUERY_LAYERS=topp%3Atasmania_state_boundaries&STYLES=&BBOX=140.328735%2C-44.906872%2C151.98523%2C-38.315075&FEATURE_COUNT=10&HEIGHT=600&WIDTH=1061&FORMAT=image%2Fpng&INFO_FORMAT=text%2Fhtml&SRS=EPSG%3A4326&X=592&Y=322
> .
> > Origin http://127.0.0.1:8888 is not allowed by
> Access-Control-Allow-Origin.
> >
> > Uncaught java.lang.IllegalArgumentException: Something other than a Java
> > object was returned from JSNI method
> >
> '@org.gwtopenmaps.openlayers.client.util.JSObjectHelper::getProperty(Lorg/gwtopenmaps/openlayers/client/util/JSObject;Ljava/lang/String;)':
> > JS value of type int, expected java.lang.Object
> >
> > wmsFailed to load resource
> > Following the link loads the correct result.
> > Jon
> > On 29 November 2010 08:42, Lukas Johansson <luk...@de...>
> > wrote:
> >>
> >> Have you checked with firebug if any request are actually sent? Probably
> >> they aren’t as you get a JS error and you don’t see anything in the log
> at
> >> the server.
> >>
> >> By just “dry reading” your code I don’t see anything that pops out.
> >>
> >> You do get a “String cannot be cast to JSObject” exception and the only
> >> row I can guess cases this is:
> >>
> >> options.setLayers(getWMSMapLayers().toArray(new WMS[0]));
> >>
> >>
> >>
> >> What does getWMSMapLayers() return? Which toArray method is called?....
> >>
> >> /Lukas
> >>
> >>
> >>
> >>
> >>
> >> Från: man...@go...
> >> [mailto:man...@go...] För Jon Britton
> >>
> >> Skickat: den 26 november 2010 18:49
> >> Till: Lukas Johansson
> >> Kopia: gwt-openlayers-users
> >> Ämne: Re: [Gwt-openlayers-users] MapClickListener support
> >>
> >>
> >>
> >> Hi Lukas,
> >>
> >>
> >>
> >> I've added a WMSGetFeatureInfo control to my map, but when I make a
> >> request (by clicking on the map) the map freezes.  I've checked by WMS
> >> server logs and it did receive a GetFeatureInfo request and seems to
> have
> >> returned a result.
> >>
> >>
> >>
> >> I was originally testing in Google Chrome, but I tried Firefox and get
> the
> >> same problem - however I also get a JavaScript exception:
> >>
> >>
> >>
> >> Uncaught JavaScript exception [uncaught exception:
> >> java.lang.ClassCastException: java.lang.String cannot be cast to
> >> org.gwtopenmaps.openlayers.client.util.JSObject] in , line 0
> >>
> >>
> >>
> >> Any idea what could be causing this?  My code is shown below.
> >>
> >>
> >>
> >> Thanks,
> >>
> >>
> >>
> >> Jon
> >>
> >>
> >>
> >> public void resetWMSSelectControl() {
> >>
> >>                       if (wmsSelectControl != null)
> >>
> >>
> >> SmartWPS.getSmartWPS().getMap().removeControl(wmsSelectControl);
> >>
> >>                       WMSGetFeatureInfoOptions options = new
> >> WMSGetFeatureInfoOptions();
> >>
> >>                       options.setLayers(getWMSMapLayers().toArray(new
> >> WMS[0]));
> >>
> >>                       options.setDrillDown(true);
> >>
> >>                       options.setQueryVisible(true);
> >>
> >>                       options.setInfoFormat("application/vnd.ogc.gml");
> >>
> >>
> >>
> >>                       wmsSelectControl = new WMSGetFeatureInfo(options);
> >>
> >>                       wmsSelectControl.addGetFeatureListener(new
> >> GetFeatureInfoListener() {
> >>
> >>
> >>
> >>                                             @Override
> >>
> >>                                             public void
> onGetFeatureInfo(
> >>
> >>
> >>
> >>
> org.gwtopenmaps.openlayers.client.event.GetFeatureInfoListener.GetFeatureInfoEvent
> >> eventObject) {
> >>
> >>
> >> VectorFeature[] features = eventObject.getFeatures();
> >>
> >>
> >> System.out.println("FeatureInfo: " + eventObject.getText());
> >>
> >>                                             }
> >>
> >>                       });
> >>
> >>
> >>
> >>
> >> SmartWPS.getSmartWPS().getMap().addControl(wmsSelectControl);
> >>
> >>                       wmsSelectControl.activate();
> >>
> >> }
> >>
> >>
> >>
> >> On 24 November 2010 16:01, Lukas Johansson <luk...@de...>
> >> wrote:
> >>
> >> I’ve commited a version that make the control a more complete and which
> >> uses the drilldown parameter introduced in OL 2.9[1] which can be used
> to
> >> access multiple servers.
> >>
> >> In  october we realized that my patch hadn’t been commited so this was
> >> taken care of, however I do not think that its in the current stable
> build.
> >> Instead you need to checkout your own version.
> >>
> >>
> >>
> >> [1]
> >>
> http://dev.openlayers.org/releases/OpenLayers-2.9.1/doc/apidocs/files/OpenLayers/Control/WMSGetFeatureInfo-js.html#OpenLayers.Control.WMSGetFeatureInfo.drillDown
> >>
> >>
> >>
> >> You add the controller to the map, if you do not use drilldown only to
> top
> >> layer is queried. Most settings are set in WmsGetFeatureInfoOptions and
> not
> >> on the control itself.
> >>
> >>
> >>
> >> Usage is something along this path (copied from our working code, but
> you
> >> get the idea):
> >>
> >> WMSGetFeatureInfoOptions options = new WMSGetFeatureInfoOptions();
> >>
> >> options.setLayers(arrayOfLayersToQuery));
> >>                               //allows you to tell what layers that
> should
> >> be queried
> >>
> >> options.setDrillDown(true);
> >>
> >> options.setQueryVisible(true);
> >>
> >> options.setInfoFormat("application/vnd.ogc.gml");
> >>                        //return result as gml
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> wmsSelectControl = new WMSGetFeatureInfo(options);
> >>
> >> wmsSelectControl.addGetFeatureListener(new
> >> GetFeatureInfoListener(){
> >>
> >> public void onGetFeatureInfo(GetFeatureInfoEvent eventObject) {
> >>
> >>     VectorFeature[] features = eventObject.getFeatures();
> >>
> >>
> >>     String html = "foo";
> >>
> >>     FrameCloud popup = new FramedCloud("MapFeaturePopup",
> >> features[0].getCenterLonLat(), new Size(300, 400), html);
> >>
> >> }
> >>
> >> }
> >>
> >> map.addControl(wmsSelectControl);
> >>
> >>
> >>
> >> /Lukas
> >>
> >>
> >>
> >> Från: man...@go...
> >> [mailto:man...@go...] För Jon Britton
> >> Skickat: den 24 november 2010 16:42
> >> Till: Lukas Johansson
> >> Kopia: gwt-openlayers-users
> >> Ämne: Re: [Gwt-openlayers-users] MapClickListener support
> >>
> >>
> >>
> >> Hi Lukas,
> >>
> >>
> >>
> >> You haven't misunderstood, I wasn't aware there was a map control for
> >> this.  My client application is for displaying many WMS layers, possibly
> >> from different servers.  The user can add/remove WMS layers as they see
> fit
> >> by using their own WMS URLs.  What I want to do is display the feature
> info
> >> for every layer currently visible on my map, but I'm struggling to
> figure
> >> out how WMSGetFeatureInfo can be used for this as each control
> corresponds
> >> to only one WMS URL.  Would I need to make a new control for each map
> layer?
> >>
> >>
> >>
> >> Another problem is that the GWT-Openlayers WMGetFeatureInfo control
> seems
> >> to be incomplete as I can't access many of it's properties directly
> (such as
> >> url, title, layers...).
> >>
> >>
> >>
> >> Thanks,
> >>
> >>
> >>
> >> Jon
> >>
> >>
> >>
> >> On 24 November 2010 15:37, Lukas Johansson <luk...@de...>
> >> wrote:
> >>
> >> You want the x/y of the mouseclick in order to construct a
> >> WMSGetFeautureInfo? Why not use the existing WMSGetFeatureInfo control
> to
> >> begin with? This will handle the events, the request to the server and
> you
> >> can get it to produce a parsable result in GML from witch you can create
> >> features.
> >>
> >>
> >>
> >> Or have I misunderstood your usecase?
> >>
> >> /Lukas
> >>
> >>
> >>
> >>
> >>
> >> Från: Jon Britton [mailto:jon...@go...]
> >> Skickat: den 24 november 2010 15:20
> >> Till: gwt-openlayers-users
> >> Ämne: [Gwt-openlayers-users] MapClickListener support
> >>
> >>
> >>
> >> Hi
> >>
> >>
> >>
> >> I'm trying to register a MapClickListener so that I can generate a
> >> GetFeatureInfo request using the mouse x and y coordinates.  Here is
> what
> >> I've got so far:
> >>
> >>
> >>
> >> mw.getMap().getListeners().add(new MapClickListener() {
> >>
> >>          @Override
> >>
> >>          public void onClick(MapClickEvent e) {
> >>
> >>                  SC.say("Map click at " + e.getLonLat());
> >>
> >>          }
> >>
> >> });
> >>
> >>
> >>
> >> However, getListeners() isn't supported as far as I can tell (I get an
> >> UnsupportedOperationException on the first line above).  Are there any
> plans
> >> to implement this soon?  Alternatively, is there any other way to access
> the
> >> map coordinates of the mouse cursor?
> >>
> >>
> >>
> >> Thanks,
> >>
> >>
> >>
> >> Jon
> >>
> >>
> >>
> ------------------------------------------------------------------------------
> >> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
> >> Tap into the largest installed PC base & get more eyes on your game by
> >> optimizing for Intel(R) Graphics Technology. Get started today with the
> >> Intel(R) Software Partner Program. Five $500 cash prizes are up for
> grabs.
> >> http://p.sf.net/sfu/intelisp-dev2dev
> >> _______________________________________________
> >> Gwt-openlayers-users mailing list
> >> Gwt...@li...
> >> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
> >>
> >>
> >>
> >>
> >>
> ------------------------------------------------------------------------------
> >> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
> >> Tap into the largest installed PC base & get more eyes on your game by
> >> optimizing for Intel(R) Graphics Technology. Get started today with the
> >> Intel(R) Software Partner Program. Five $500 cash prizes are up for
> grabs.
> >> http://p.sf.net/sfu/intelisp-dev2dev
> >> _______________________________________________
> >> Gwt-openlayers-users mailing list
> >> Gwt...@li...
> >> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
> >>
> >>
> >>
> >>
> >>
> ------------------------------------------------------------------------------
> >> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
> >> Tap into the largest installed PC base & get more eyes on your game by
> >> optimizing for Intel(R) Graphics Technology. Get started today with the
> >> Intel(R) Software Partner Program. Five $500 cash prizes are up for
> grabs.
> >> http://p.sf.net/sfu/intelisp-dev2dev
> >> _______________________________________________
> >> Gwt-openlayers-users mailing list
> >> Gwt...@li...
> >> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
> >>
> >
> >
> >
> ------------------------------------------------------------------------------
> > Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
> > Tap into the largest installed PC base & get more eyes on your game by
> > optimizing for Intel(R) Graphics Technology. Get started today with the
> > Intel(R) Software Partner Program. Five $500 cash prizes are up for
> grabs.
> > http://p.sf.net/sfu/intelisp-dev2dev
> > _______________________________________________
> > Gwt-openlayers-users mailing list
> > Gwt...@li...
> > https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
> >
> >
>
>
> ------------------------------------------------------------------------------
> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
> Tap into the largest installed PC base & get more eyes on your game by
> optimizing for Intel(R) Graphics Technology. Get started today with the
> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
> http://p.sf.net/sfu/intelisp-dev2dev
> _______________________________________________
> Gwt-openlayers-users mailing list
> Gwt...@li...
> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>

Re: [Gwt-openlayers-users] MapClickListener support

[Edwin C. <com...@gm...>]

Hi Jon,

I think the essential line is:
Origin http://127.0.0.1:8888 is not allowed by Access-Control-Allow-Origin

Are you setting the OpenLayers proxyHost to use the proxy servlet from
GWT-OL server? The example in the showcase application should be
working and shows how to set the proxyHost.

What I don't get is that the request is sent to the server, because I
would expect the browser to not send any cross-domain requests if
these are not allowed from the application.

Greetings,
Edwin


On 29 November 2010 10:54, Jon Britton <jon...@go...> wrote:
> Sorry if I wasn't clear in my previous email, but the server is actually
> receiving and dealing with the request.  I've tried another remote server
> and I get the same problem.  I've debugged the website with Chrome, and it
> just hangs when making the request - it says "pending" under Status.
>  However, the Chrome debugging console shows the following errors:
> XMLHttpRequest cannot load
> http://localhost:8080/geoserver/wms?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetFeatureInfo&LAYERS=topp%3Atasmania_state_boundaries&QUERY_LAYERS=topp%3Atasmania_state_boundaries&STYLES=&BBOX=140.328735%2C-44.906872%2C151.98523%2C-38.315075&FEATURE_COUNT=10&HEIGHT=600&WIDTH=1061&FORMAT=image%2Fpng&INFO_FORMAT=text%2Fhtml&SRS=EPSG%3A4326&X=592&Y=322.
> Origin http://127.0.0.1:8888 is not allowed by Access-Control-Allow-Origin.
>
> Uncaught java.lang.IllegalArgumentException: Something other than a Java
> object was returned from JSNI method
> '@org.gwtopenmaps.openlayers.client.util.JSObjectHelper::getProperty(Lorg/gwtopenmaps/openlayers/client/util/JSObject;Ljava/lang/String;)':
> JS value of type int, expected java.lang.Object
>
> wmsFailed to load resource
> Following the link loads the correct result.
> Jon
> On 29 November 2010 08:42, Lukas Johansson <luk...@de...>
> wrote:
>>
>> Have you checked with firebug if any request are actually sent? Probably
>> they aren’t as you get a JS error and you don’t see anything in the log at
>> the server.
>>
>> By just “dry reading” your code I don’t see anything that pops out.
>>
>> You do get a “String cannot be cast to JSObject” exception and the only
>> row I can guess cases this is:
>>
>> options.setLayers(getWMSMapLayers().toArray(new WMS[0]));
>>
>>
>>
>> What does getWMSMapLayers() return? Which toArray method is called?....
>>
>> /Lukas
>>
>>
>>
>>
>>
>> Från: man...@go...
>> [mailto:man...@go...] För Jon Britton
>>
>> Skickat: den 26 november 2010 18:49
>> Till: Lukas Johansson
>> Kopia: gwt-openlayers-users
>> Ämne: Re: [Gwt-openlayers-users] MapClickListener support
>>
>>
>>
>> Hi Lukas,
>>
>>
>>
>> I've added a WMSGetFeatureInfo control to my map, but when I make a
>> request (by clicking on the map) the map freezes.  I've checked by WMS
>> server logs and it did receive a GetFeatureInfo request and seems to have
>> returned a result.
>>
>>
>>
>> I was originally testing in Google Chrome, but I tried Firefox and get the
>> same problem - however I also get a JavaScript exception:
>>
>>
>>
>> Uncaught JavaScript exception [uncaught exception:
>> java.lang.ClassCastException: java.lang.String cannot be cast to
>> org.gwtopenmaps.openlayers.client.util.JSObject] in , line 0
>>
>>
>>
>> Any idea what could be causing this?  My code is shown below.
>>
>>
>>
>> Thanks,
>>
>>
>>
>> Jon
>>
>>
>>
>> public void resetWMSSelectControl() {
>>
>>                       if (wmsSelectControl != null)
>>
>>
>> SmartWPS.getSmartWPS().getMap().removeControl(wmsSelectControl);
>>
>>                       WMSGetFeatureInfoOptions options = new
>> WMSGetFeatureInfoOptions();
>>
>>                       options.setLayers(getWMSMapLayers().toArray(new
>> WMS[0]));
>>
>>                       options.setDrillDown(true);
>>
>>                       options.setQueryVisible(true);
>>
>>                       options.setInfoFormat("application/vnd.ogc.gml");
>>
>>
>>
>>                       wmsSelectControl = new WMSGetFeatureInfo(options);
>>
>>                       wmsSelectControl.addGetFeatureListener(new
>> GetFeatureInfoListener() {
>>
>>
>>
>>                                             @Override
>>
>>                                             public void onGetFeatureInfo(
>>
>>
>>
>> org.gwtopenmaps.openlayers.client.event.GetFeatureInfoListener.GetFeatureInfoEvent
>> eventObject) {
>>
>>
>> VectorFeature[] features = eventObject.getFeatures();
>>
>>
>> System.out.println("FeatureInfo: " + eventObject.getText());
>>
>>                                             }
>>
>>                       });
>>
>>
>>
>>
>> SmartWPS.getSmartWPS().getMap().addControl(wmsSelectControl);
>>
>>                       wmsSelectControl.activate();
>>
>> }
>>
>>
>>
>> On 24 November 2010 16:01, Lukas Johansson <luk...@de...>
>> wrote:
>>
>> I’ve commited a version that make the control a more complete and which
>> uses the drilldown parameter introduced in OL 2.9[1] which can be used to
>> access multiple servers.
>>
>> In  october we realized that my patch hadn’t been commited so this was
>> taken care of, however I do not think that its in the current stable build.
>> Instead you need to checkout your own version.
>>
>>
>>
>> [1]
>> http://dev.openlayers.org/releases/OpenLayers-2.9.1/doc/apidocs/files/OpenLayers/Control/WMSGetFeatureInfo-js.html#OpenLayers.Control.WMSGetFeatureInfo.drillDown
>>
>>
>>
>> You add the controller to the map, if you do not use drilldown only to top
>> layer is queried. Most settings are set in WmsGetFeatureInfoOptions and not
>> on the control itself.
>>
>>
>>
>> Usage is something along this path (copied from our working code, but you
>> get the idea):
>>
>> WMSGetFeatureInfoOptions options = new WMSGetFeatureInfoOptions();
>>
>> options.setLayers(arrayOfLayersToQuery));
>>                               //allows you to tell what layers that should
>> be queried
>>
>> options.setDrillDown(true);
>>
>> options.setQueryVisible(true);
>>
>> options.setInfoFormat("application/vnd.ogc.gml");
>>                        //return result as gml
>>
>>
>>
>>
>>
>>
>>
>> wmsSelectControl = new WMSGetFeatureInfo(options);
>>
>> wmsSelectControl.addGetFeatureListener(new
>> GetFeatureInfoListener(){
>>
>> public void onGetFeatureInfo(GetFeatureInfoEvent eventObject) {
>>
>>     VectorFeature[] features = eventObject.getFeatures();
>>
>>
>>     String html = "foo";
>>
>>     FrameCloud popup = new FramedCloud("MapFeaturePopup",
>> features[0].getCenterLonLat(), new Size(300, 400), html);
>>
>> }
>>
>> }
>>
>> map.addControl(wmsSelectControl);
>>
>>
>>
>> /Lukas
>>
>>
>>
>> Från: man...@go...
>> [mailto:man...@go...] För Jon Britton
>> Skickat: den 24 november 2010 16:42
>> Till: Lukas Johansson
>> Kopia: gwt-openlayers-users
>> Ämne: Re: [Gwt-openlayers-users] MapClickListener support
>>
>>
>>
>> Hi Lukas,
>>
>>
>>
>> You haven't misunderstood, I wasn't aware there was a map control for
>> this.  My client application is for displaying many WMS layers, possibly
>> from different servers.  The user can add/remove WMS layers as they see fit
>> by using their own WMS URLs.  What I want to do is display the feature info
>> for every layer currently visible on my map, but I'm struggling to figure
>> out how WMSGetFeatureInfo can be used for this as each control corresponds
>> to only one WMS URL.  Would I need to make a new control for each map layer?
>>
>>
>>
>> Another problem is that the GWT-Openlayers WMGetFeatureInfo control seems
>> to be incomplete as I can't access many of it's properties directly (such as
>> url, title, layers...).
>>
>>
>>
>> Thanks,
>>
>>
>>
>> Jon
>>
>>
>>
>> On 24 November 2010 15:37, Lukas Johansson <luk...@de...>
>> wrote:
>>
>> You want the x/y of the mouseclick in order to construct a
>> WMSGetFeautureInfo? Why not use the existing WMSGetFeatureInfo control to
>> begin with? This will handle the events, the request to the server and you
>> can get it to produce a parsable result in GML from witch you can create
>> features.
>>
>>
>>
>> Or have I misunderstood your usecase?
>>
>> /Lukas
>>
>>
>>
>>
>>
>> Från: Jon Britton [mailto:jon...@go...]
>> Skickat: den 24 november 2010 15:20
>> Till: gwt-openlayers-users
>> Ämne: [Gwt-openlayers-users] MapClickListener support
>>
>>
>>
>> Hi
>>
>>
>>
>> I'm trying to register a MapClickListener so that I can generate a
>> GetFeatureInfo request using the mouse x and y coordinates.  Here is what
>> I've got so far:
>>
>>
>>
>> mw.getMap().getListeners().add(new MapClickListener() {
>>
>>          @Override
>>
>>          public void onClick(MapClickEvent e) {
>>
>>                  SC.say("Map click at " + e.getLonLat());
>>
>>          }
>>
>> });
>>
>>
>>
>> However, getListeners() isn't supported as far as I can tell (I get an
>> UnsupportedOperationException on the first line above).  Are there any plans
>> to implement this soon?  Alternatively, is there any other way to access the
>> map coordinates of the mouse cursor?
>>
>>
>>
>> Thanks,
>>
>>
>>
>> Jon
>>
>>
>> ------------------------------------------------------------------------------
>> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
>> Tap into the largest installed PC base & get more eyes on your game by
>> optimizing for Intel(R) Graphics Technology. Get started today with the
>> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
>> http://p.sf.net/sfu/intelisp-dev2dev
>> _______________________________________________
>> Gwt-openlayers-users mailing list
>> Gwt...@li...
>> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>>
>>
>>
>>
>> ------------------------------------------------------------------------------
>> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
>> Tap into the largest installed PC base & get more eyes on your game by
>> optimizing for Intel(R) Graphics Technology. Get started today with the
>> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
>> http://p.sf.net/sfu/intelisp-dev2dev
>> _______________________________________________
>> Gwt-openlayers-users mailing list
>> Gwt...@li...
>> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>>
>>
>>
>>
>> ------------------------------------------------------------------------------
>> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
>> Tap into the largest installed PC base & get more eyes on your game by
>> optimizing for Intel(R) Graphics Technology. Get started today with the
>> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
>> http://p.sf.net/sfu/intelisp-dev2dev
>> _______________________________________________
>> Gwt-openlayers-users mailing list
>> Gwt...@li...
>> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>>
>
>
> ------------------------------------------------------------------------------
> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
> Tap into the largest installed PC base & get more eyes on your game by
> optimizing for Intel(R) Graphics Technology. Get started today with the
> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
> http://p.sf.net/sfu/intelisp-dev2dev
> _______________________________________________
> Gwt-openlayers-users mailing list
> Gwt...@li...
> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>
>

Re: [Gwt-openlayers-users] MapClickListener support

[Jon B. <jon...@go...>]

Sorry if I wasn't clear in my previous email, but the server is actually
receiving and dealing with the request.  I've tried another remote server
and I get the same problem.  I've debugged the website with Chrome, and it
just hangs when making the request - it says "pending" under Status.
 However, the Chrome debugging console shows the following errors:

 XMLHttpRequest cannot load
http://localhost:8080/geoserver/wms?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetFeatureInfo&LAYERS=topp%3Atasmania_state_boundaries&QUERY_LAYERS=topp%3Atasmania_state_boundaries&STYLES=&BBOX=140.328735%2C-44.906872%2C151.98523%2C-38.315075&FEATURE_COUNT=10&HEIGHT=600&WIDTH=1061&FORMAT=image%2Fpng&INFO_FORMAT=text%2Fhtml&SRS=EPSG%3A4326&X=592&Y=322.
Origin http://127.0.0.1:8888 <http://127.0.0.1/> is not allowed by
Access-Control-Allow-Origin.

   1. Uncaught java.lang.IllegalArgumentException: Something other than a
   Java object was returned from JSNI method
   '@org.gwtopenmaps.openlayers.client.util.JSObjectHelper::getProperty(Lorg/gwtopenmaps/openlayers/client/util/JSObject;Ljava/lang/String;)':
   JS value of type int, expected java.lang.Object

wms<http://localhost:8080/geoserver/wms?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetFeatureInfo&LAYERS=topp%3Atasmania_state_boundaries&QUERY_LAYERS=topp%3Atasmania_state_boundaries&STYLES=&BBOX=140.328735%2C-44.906872%2C151.98523%2C-38.315075&FEATURE_COUNT=10&HEIGHT=600&WIDTH=1061&FORMAT=image%2Fpng&INFO_FORMAT=text%2Fhtml&SRS=EPSG%3A4326&X=592&Y=322>Failed
to load resource

Following the link loads the correct result.

Jon

On 29 November 2010 08:42, Lukas Johansson <luk...@de...>wrote:

> Have you checked with firebug if any request are actually sent? Probably
> they aren’t as you get a JS error and you don’t see anything in the log at
> the server.
>
> By just “dry reading” your code I don’t see anything that pops out.
>
> You do get a “String cannot be cast to JSObject” exception and the only row
> I can guess cases this is:
>
> options.setLayers(getWMSMapLayers().toArray(new WMS[0]));
>
>
>
> What does getWMSMapLayers() return? Which toArray method is called?....
>
> /Lukas
>
>
>
>
>
> *Från:* man...@go... [mailto:
> man...@go...] *För *Jon Britton
>
> *Skickat:* den 26 november 2010 18:49
> *Till:* Lukas Johansson
> *Kopia:* gwt-openlayers-users
> *Ämne:* Re: [Gwt-openlayers-users] MapClickListener support
>
>
>
> Hi Lukas,
>
>
>
> I've added a WMSGetFeatureInfo control to my map, but when I make a request
> (by clicking on the map) the map freezes.  I've checked by WMS server logs
> and it did receive a GetFeatureInfo request and seems to have returned a
> result.
>
>
>
> I was originally testing in Google Chrome, but I tried Firefox and get the
> same problem - however I also get a JavaScript exception:
>
>
>
> Uncaught JavaScript exception [uncaught exception:
> java.lang.ClassCastException: java.lang.String cannot be cast to
> org.gwtopenmaps.openlayers.client.util.JSObject] in , line 0
>
>
>
> Any idea what could be causing this?  My code is shown below.
>
>
>
> Thanks,
>
>
>
> Jon
>
>
>
> public void resetWMSSelectControl() {
>
>                       if (wmsSelectControl != null)
>
>
> SmartWPS.getSmartWPS().getMap().removeControl(wmsSelectControl);
>
>                       WMSGetFeatureInfoOptions options = new
> WMSGetFeatureInfoOptions();
>
>                       options.setLayers(getWMSMapLayers().toArray(new
> WMS[0]));
>
>                       options.setDrillDown(true);
>
>                       options.setQueryVisible(true);
>
>                       options.setInfoFormat("application/vnd.ogc.gml");
>
>
>
>                       wmsSelectControl = new WMSGetFeatureInfo(options);
>
>                       wmsSelectControl.addGetFeatureListener(new
> GetFeatureInfoListener() {
>
>
>
>                                             @Override
>
>                                             public void onGetFeatureInfo(
>
>
>                       org.gwtopenmaps.openlayers.client.event.GetFeatureInfoListener.GetFeatureInfoEvent
> eventObject) {
>
>                                                                  VectorFeature[]
> features = eventObject.getFeatures();
>
>                                                                  System.out.println("FeatureInfo:
> " + eventObject.getText());
>
>                                             }
>
>                       });
>
>
>
>
> SmartWPS.getSmartWPS().getMap().addControl(wmsSelectControl);
>
>                       wmsSelectControl.activate();
>
> }
>
>
>
> On 24 November 2010 16:01, Lukas Johansson <luk...@de...>
> wrote:
>
> I’ve commited a version that make the control a more complete and which
> uses the drilldown parameter introduced in OL 2.9[1] which can be used to
> access multiple servers.
>
> In  october we realized that my patch hadn’t been commited so this was
> taken care of, however I do not think that its in the current stable build.
> Instead you need to checkout your own version.
>
>
>
> [1]
> http://dev.openlayers.org/releases/OpenLayers-2.9.1/doc/apidocs/files/OpenLayers/Control/WMSGetFeatureInfo-js.html#OpenLayers.Control.WMSGetFeatureInfo.drillDown
>
>
>
> You add the controller to the map, if you do not use drilldown only to top
> layer is queried. Most settings are set in WmsGetFeatureInfoOptions and not
> on the control itself.
>
>
>
> Usage is something along this path (copied from our working code, but you
> get the idea):
>
> WMSGetFeatureInfoOptions options = new WMSGetFeatureInfoOptions();
>
> options.setLayers(arrayOfLayersToQuery));
>                               //allows you to tell what layers that should
> be queried
>
> options.setDrillDown(true);
>
> options.setQueryVisible(true);
>
> options.setInfoFormat("application/vnd.ogc.gml");
>                        //return result as gml
>
>
>
>
>
>
>
> wmsSelectControl = new WMSGetFeatureInfo(options);
>
> wmsSelectControl.addGetFeatureListener(new GetFeatureInfoListener(){
>
>
> public void onGetFeatureInfo(GetFeatureInfoEvent eventObject) {
>
>     VectorFeature[] features = eventObject.getFeatures();
>
>
>     String html = "foo";
>
>     FrameCloud popup = new FramedCloud("MapFeaturePopup",
> features[0].getCenterLonLat(), new Size(300, 400), html);
>
> }
>
> }
>
> map.addControl(wmsSelectControl);
>
>
>
> /Lukas
>
>
>
> *Från:* man...@go... [mailto:
> man...@go...] *För *Jon Britton
> *Skickat:* den 24 november 2010 16:42
> *Till:* Lukas Johansson
> *Kopia:* gwt-openlayers-users
> *Ämne:* Re: [Gwt-openlayers-users] MapClickListener support
>
>
>
> Hi Lukas,
>
>
>
> You haven't misunderstood, I wasn't aware there was a map control for this.
>  My client application is for displaying many WMS layers, possibly from
> different servers.  The user can add/remove WMS layers as they see fit by
> using their own WMS URLs.  What I want to do is display the feature info for
> every layer currently visible on my map, but I'm struggling to figure out
> how WMSGetFeatureInfo can be used for this as each control corresponds to
> only one WMS URL.  Would I need to make a new control for each map layer?
>
>
>
> Another problem is that the GWT-Openlayers WMGetFeatureInfo control seems
> to be incomplete as I can't access many of it's properties directly (such as
> url, title, layers...).
>
>
>
> Thanks,
>
>
>
> Jon
>
>
>
> On 24 November 2010 15:37, Lukas Johansson <luk...@de...>
> wrote:
>
> You want the x/y of the mouseclick in order to construct a
> WMSGetFeautureInfo? Why not use the existing WMSGetFeatureInfo control to
> begin with? This will handle the events, the request to the server and you
> can get it to produce a parsable result in GML from witch you can create
> features.
>
>
>
> Or have I misunderstood your usecase?
>
> /Lukas
>
>
>
>
>
> *Från:* Jon Britton [mailto:jon...@go...]
> *Skickat:* den 24 november 2010 15:20
> *Till:* gwt-openlayers-users
> *Ämne:* [Gwt-openlayers-users] MapClickListener support
>
>
>
> Hi
>
>
>
> I'm trying to register a MapClickListener so that I can generate a
> GetFeatureInfo request using the mouse x and y coordinates.  Here is what
> I've got so far:
>
>
>
> mw.getMap().getListeners().add(new MapClickListener() {
>
>          @Override
>
>          public void onClick(MapClickEvent e) {
>
>                  SC.say("Map click at " + e.getLonLat());
>
>          }
>
> });
>
>
>
> However, getListeners() isn't supported as far as I can tell (I get an
> UnsupportedOperationException on the first line above).  Are there any plans
> to implement this soon?  Alternatively, is there any other way to access the
> map coordinates of the mouse cursor?
>
>
>
> Thanks,
>
>
>
> Jon
>
>
>
> ------------------------------------------------------------------------------
> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
> Tap into the largest installed PC base & get more eyes on your game by
> optimizing for Intel(R) Graphics Technology. Get started today with the
> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
> http://p.sf.net/sfu/intelisp-dev2dev
> _______________________________________________
> Gwt-openlayers-users mailing list
> Gwt...@li...
> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>
>
>
>
>
> ------------------------------------------------------------------------------
> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
> Tap into the largest installed PC base & get more eyes on your game by
> optimizing for Intel(R) Graphics Technology. Get started today with the
> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
> http://p.sf.net/sfu/intelisp-dev2dev
> _______________________________________________
> Gwt-openlayers-users mailing list
> Gwt...@li...
> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>
>
>
>
> ------------------------------------------------------------------------------
> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
> Tap into the largest installed PC base & get more eyes on your game by
> optimizing for Intel(R) Graphics Technology. Get started today with the
> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
> http://p.sf.net/sfu/intelisp-dev2dev
> _______________________________________________
> Gwt-openlayers-users mailing list
> Gwt...@li...
> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>
>

Re: [Gwt-openlayers-users] MapClickListener support

[Lukas J. <luk...@de...>]

Have you checked with firebug if any request are actually sent? Probably they aren't as you get a JS error and you don't see anything in the log at the server.

By just "dry reading" your code I don't see anything that pops out.

You do get a "String cannot be cast to JSObject" exception and the only row I can guess cases this is:

options.setLayers(getWMSMapLayers().toArray(new WMS[0]));

 

What does getWMSMapLayers() return? Which toArray method is called?....

/Lukas

 

 

Från: man...@go... [mailto:man...@go...] För Jon Britton
Skickat: den 26 november 2010 18:49
Till: Lukas Johansson
Kopia: gwt-openlayers-users
Ämne: Re: [Gwt-openlayers-users] MapClickListener support

 

Hi Lukas,

 

I've added a WMSGetFeatureInfo control to my map, but when I make a request (by clicking on the map) the map freezes.  I've checked by WMS server logs and it did receive a GetFeatureInfo request and seems to have returned a result.

 

I was originally testing in Google Chrome, but I tried Firefox and get the same problem - however I also get a JavaScript exception:

 

Uncaught JavaScript exception [uncaught exception: java.lang.ClassCastException: java.lang.String cannot be cast to org.gwtopenmaps.openlayers.client.util.JSObject] in , line 0

 

Any idea what could be causing this?  My code is shown below.

 

Thanks,

 

Jon

 

public void resetWMSSelectControl() {

                      if (wmsSelectControl != null)

                                            SmartWPS.getSmartWPS().getMap().removeControl(wmsSelectControl);

                      WMSGetFeatureInfoOptions options = new WMSGetFeatureInfoOptions();

                      options.setLayers(getWMSMapLayers().toArray(new WMS[0]));

                      options.setDrillDown(true);

                      options.setQueryVisible(true);

                      options.setInfoFormat("application/vnd.ogc.gml");

                                            

                      wmsSelectControl = new WMSGetFeatureInfo(options);

                      wmsSelectControl.addGetFeatureListener(new GetFeatureInfoListener() {

                                            

                                            @Override

                                            public void onGetFeatureInfo(

                                                                                       org.gwtopenmaps.openlayers.client.event.GetFeatureInfoListener.GetFeatureInfoEvent eventObject) {

                                                                 VectorFeature[] features = eventObject.getFeatures();

                                                                 System.out.println("FeatureInfo: " + eventObject.getText());

                                            }

                      });

                                            

                      SmartWPS.getSmartWPS().getMap().addControl(wmsSelectControl);

                      wmsSelectControl.activate();

}

 

On 24 November 2010 16:01, Lukas Johansson <luk...@de...> wrote:

I've commited a version that make the control a more complete and which uses the drilldown parameter introduced in OL 2.9[1] which can be used to access multiple servers.

In  october we realized that my patch hadn't been commited so this was taken care of, however I do not think that its in the current stable build. Instead you need to checkout your own version.

 

[1] http://dev.openlayers.org/releases/OpenLayers-2.9.1/doc/apidocs/files/OpenLayers/Control/WMSGetFeatureInfo-js.html#OpenLayers.Control.WMSGetFeatureInfo.drillDown

 

You add the controller to the map, if you do not use drilldown only to top layer is queried. Most settings are set in WmsGetFeatureInfoOptions and not on the control itself.

 

Usage is something along this path (copied from our working code, but you get the idea):

WMSGetFeatureInfoOptions options = new WMSGetFeatureInfoOptions(); 

options.setLayers(arrayOfLayersToQuery));                                //allows you to tell what layers that should be queried

options.setDrillDown(true);                                           

options.setQueryVisible(true);

options.setInfoFormat("application/vnd.ogc.gml");                        //return result as gml

 

 

 

wmsSelectControl = new WMSGetFeatureInfo(options);

wmsSelectControl.addGetFeatureListener(new GetFeatureInfoListener(){        

public void onGetFeatureInfo(GetFeatureInfoEvent eventObject) {

    VectorFeature[] features = eventObject.getFeatures();                   

    String html = "foo";

    FrameCloud popup = new FramedCloud("MapFeaturePopup", features[0].getCenterLonLat(), new Size(300, 400), html); 

}

}

map.addControl(wmsSelectControl);

 

/Lukas

 

Från: man...@go... [mailto:man...@go...] För Jon Britton
Skickat: den 24 november 2010 16:42
Till: Lukas Johansson
Kopia: gwt-openlayers-users
Ämne: Re: [Gwt-openlayers-users] MapClickListener support

 

Hi Lukas,

 

You haven't misunderstood, I wasn't aware there was a map control for this.  My client application is for displaying many WMS layers, possibly from different servers.  The user can add/remove WMS layers as they see fit by using their own WMS URLs.  What I want to do is display the feature info for every layer currently visible on my map, but I'm struggling to figure out how WMSGetFeatureInfo can be used for this as each control corresponds to only one WMS URL.  Would I need to make a new control for each map layer?

 

Another problem is that the GWT-Openlayers WMGetFeatureInfo control seems to be incomplete as I can't access many of it's properties directly (such as url, title, layers...).

 

Thanks,

 

Jon

 

On 24 November 2010 15:37, Lukas Johansson <luk...@de...> wrote:

You want the x/y of the mouseclick in order to construct a WMSGetFeautureInfo? Why not use the existing WMSGetFeatureInfo control to begin with? This will handle the events, the request to the server and you can get it to produce a parsable result in GML from witch you can create features.

 

Or have I misunderstood your usecase?

/Lukas

 

 

Från: Jon Britton [mailto:jon...@go...] 
Skickat: den 24 november 2010 15:20
Till: gwt-openlayers-users
Ämne: [Gwt-openlayers-users] MapClickListener support

 

Hi

 

I'm trying to register a MapClickListener so that I can generate a GetFeatureInfo request using the mouse x and y coordinates.  Here is what I've got so far: 

 

mw.getMap().getListeners().add(new MapClickListener() {

         @Override

         public void onClick(MapClickEvent e) {

                 SC.say("Map click at " + e.getLonLat());

         }

});

 

However, getListeners() isn't supported as far as I can tell (I get an UnsupportedOperationException on the first line above).  Are there any plans to implement this soon?  Alternatively, is there any other way to access the map coordinates of the mouse cursor?

 

Thanks,

 

Jon


------------------------------------------------------------------------------
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------------------------------------------------------------------------------
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Tap into the largest installed PC base & get more eyes on your game by
optimizing for Intel(R) Graphics Technology. Get started today with the
Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
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Re: [Gwt-openlayers-users] MapClickListener support

[Jon B. <jon...@go...>]

Hi Lukas,

I've added a WMSGetFeatureInfo control to my map, but when I make a request
(by clicking on the map) the map freezes.  I've checked by WMS server logs
and it did receive a GetFeatureInfo request and seems to have returned a
result.

I was originally testing in Google Chrome, but I tried Firefox and get the
same problem - however I also get a JavaScript exception:

Uncaught JavaScript exception [uncaught exception:
java.lang.ClassCastException: java.lang.String cannot be cast to
org.gwtopenmaps.openlayers.client.util.JSObject] in , line 0

Any idea what could be causing this?  My code is shown below.

Thanks,

Jon

public void resetWMSSelectControl() {
 if (wmsSelectControl != null)
SmartWPS.getSmartWPS().getMap().removeControl(wmsSelectControl);
 WMSGetFeatureInfoOptions options = new WMSGetFeatureInfoOptions();
options.setLayers(getWMSMapLayers().toArray(new WMS[0]));
 options.setDrillDown(true);
options.setQueryVisible(true);
options.setInfoFormat("application/vnd.ogc.gml");
 wmsSelectControl = new WMSGetFeatureInfo(options);
wmsSelectControl.addGetFeatureListener(new GetFeatureInfoListener() {
 @Override
public void onGetFeatureInfo(
 org.gwtopenmaps.openlayers.client.event.GetFeatureInfoListener.GetFeatureInfoEvent
eventObject) {
VectorFeature[] features = eventObject.getFeatures();
 System.out.println("FeatureInfo: " + eventObject.getText());
}
 });
 SmartWPS.getSmartWPS().getMap().addControl(wmsSelectControl);
 wmsSelectControl.activate();
}


On 24 November 2010 16:01, Lukas Johansson <luk...@de...>wrote:

> I’ve commited a version that make the control a more complete and which
> uses the drilldown parameter introduced in OL 2.9[1] which can be used to
> access multiple servers.
>
> In  october we realized that my patch hadn’t been commited so this was
> taken care of, however I do not think that its in the current stable build.
> Instead you need to checkout your own version.
>
>
>
> [1]
> http://dev.openlayers.org/releases/OpenLayers-2.9.1/doc/apidocs/files/OpenLayers/Control/WMSGetFeatureInfo-js.html#OpenLayers.Control.WMSGetFeatureInfo.drillDown
>
>
>
> You add the controller to the map, if you do not use drilldown only to top
> layer is queried. Most settings are set in WmsGetFeatureInfoOptions and not
> on the control itself.
>
>
>
> Usage is something along this path (copied from our working code, but you
> get the idea):
>
> WMSGetFeatureInfoOptions options = new WMSGetFeatureInfoOptions();
>
> options.setLayers(arrayOfLayersToQuery));
>                               //allows you to tell what layers that should
> be queried
>
> options.setDrillDown(true);
>
> options.setQueryVisible(true);
>
> options.setInfoFormat("application/vnd.ogc.gml");
>                        //return result as gml
>
>
>
>
>
>
>
> wmsSelectControl = new WMSGetFeatureInfo(options);
>
> wmsSelectControl.addGetFeatureListener(new GetFeatureInfoListener(){
>
>
> public void onGetFeatureInfo(GetFeatureInfoEvent eventObject) {
>
>     VectorFeature[] features = eventObject.getFeatures();
>
>
>     String html = "foo";
>
>     FrameCloud popup = new FramedCloud("MapFeaturePopup",
> features[0].getCenterLonLat(), new Size(300, 400), html);
>
> }
>
> }
>
> map.addControl(wmsSelectControl);
>
>
>
> /Lukas
>
>
>
> *Från:* man...@go... [mailto:
> man...@go...] *För *Jon Britton
> *Skickat:* den 24 november 2010 16:42
> *Till:* Lukas Johansson
> *Kopia:* gwt-openlayers-users
> *Ämne:* Re: [Gwt-openlayers-users] MapClickListener support
>
>
>
> Hi Lukas,
>
>
>
> You haven't misunderstood, I wasn't aware there was a map control for this.
>  My client application is for displaying many WMS layers, possibly from
> different servers.  The user can add/remove WMS layers as they see fit by
> using their own WMS URLs.  What I want to do is display the feature info for
> every layer currently visible on my map, but I'm struggling to figure out
> how WMSGetFeatureInfo can be used for this as each control corresponds to
> only one WMS URL.  Would I need to make a new control for each map layer?
>
>
>
> Another problem is that the GWT-Openlayers WMGetFeatureInfo control seems
> to be incomplete as I can't access many of it's properties directly (such as
> url, title, layers...).
>
>
>
> Thanks,
>
>
>
> Jon
>
>
>
> On 24 November 2010 15:37, Lukas Johansson <luk...@de...>
> wrote:
>
> You want the x/y of the mouseclick in order to construct a
> WMSGetFeautureInfo? Why not use the existing WMSGetFeatureInfo control to
> begin with? This will handle the events, the request to the server and you
> can get it to produce a parsable result in GML from witch you can create
> features.
>
>
>
> Or have I misunderstood your usecase?
>
> /Lukas
>
>
>
>
>
> *Från:* Jon Britton [mailto:jon...@go...]
> *Skickat:* den 24 november 2010 15:20
> *Till:* gwt-openlayers-users
> *Ämne:* [Gwt-openlayers-users] MapClickListener support
>
>
>
> Hi
>
>
>
> I'm trying to register a MapClickListener so that I can generate a
> GetFeatureInfo request using the mouse x and y coordinates.  Here is what
> I've got so far:
>
>
>
> mw.getMap().getListeners().add(new MapClickListener() {
>
>          @Override
>
>          public void onClick(MapClickEvent e) {
>
>                  SC.say("Map click at " + e.getLonLat());
>
>          }
>
> });
>
>
>
> However, getListeners() isn't supported as far as I can tell (I get an
> UnsupportedOperationException on the first line above).  Are there any plans
> to implement this soon?  Alternatively, is there any other way to access the
> map coordinates of the mouse cursor?
>
>
>
> Thanks,
>
>
>
> Jon
>
>
>
> ------------------------------------------------------------------------------
> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
> Tap into the largest installed PC base & get more eyes on your game by
> optimizing for Intel(R) Graphics Technology. Get started today with the
> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
> http://p.sf.net/sfu/intelisp-dev2dev
> _______________________________________________
> Gwt-openlayers-users mailing list
> Gwt...@li...
> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>
>
>
>
> ------------------------------------------------------------------------------
> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
> Tap into the largest installed PC base & get more eyes on your game by
> optimizing for Intel(R) Graphics Technology. Get started today with the
> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
> http://p.sf.net/sfu/intelisp-dev2dev
> _______________________________________________
> Gwt-openlayers-users mailing list
> Gwt...@li...
> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>
>

Re: [Gwt-openlayers-users] MapClickListener support

[Jon B. <jon...@go...>]

Oh, sorry, didn't notice you told me to checkout my own version.

On 25 November 2010 11:03, Jon Britton <jon...@go...> wrote:

> Hi Lukas, thanks for the help.  Could you please tell me where I can get
> the latest GWT-OpenLayers build? I can't seem to find it.
>
> Cheers,
>
> Jon
>
>
> On 24 November 2010 16:01, Lukas Johansson <luk...@de...>wrote:
>
>> I’ve commited a version that make the control a more complete and which
>> uses the drilldown parameter introduced in OL 2.9[1] which can be used to
>> access multiple servers.
>>
>> In  october we realized that my patch hadn’t been commited so this was
>> taken care of, however I do not think that its in the current stable build.
>> Instead you need to checkout your own version.
>>
>>
>>
>> [1]
>> http://dev.openlayers.org/releases/OpenLayers-2.9.1/doc/apidocs/files/OpenLayers/Control/WMSGetFeatureInfo-js.html#OpenLayers.Control.WMSGetFeatureInfo.drillDown
>>
>>
>>
>> You add the controller to the map, if you do not use drilldown only to top
>> layer is queried. Most settings are set in WmsGetFeatureInfoOptions and not
>> on the control itself.
>>
>>
>>
>> Usage is something along this path (copied from our working code, but you
>> get the idea):
>>
>> WMSGetFeatureInfoOptions options = new WMSGetFeatureInfoOptions();
>>
>> options.setLayers(arrayOfLayersToQuery));
>>                               //allows you to tell what layers that should
>> be queried
>>
>> options.setDrillDown(true);
>>
>> options.setQueryVisible(true);
>>
>> options.setInfoFormat("application/vnd.ogc.gml");
>>                        //return result as gml
>>
>>
>>
>>
>>
>>
>>
>> wmsSelectControl = new WMSGetFeatureInfo(options);
>>
>> wmsSelectControl.addGetFeatureListener(new
>> GetFeatureInfoListener(){
>>
>> public void onGetFeatureInfo(GetFeatureInfoEvent eventObject) {
>>
>>     VectorFeature[] features = eventObject.getFeatures();
>>
>>
>>     String html = "foo";
>>
>>     FrameCloud popup = new FramedCloud("MapFeaturePopup",
>> features[0].getCenterLonLat(), new Size(300, 400), html);
>>
>> }
>>
>> }
>>
>> map.addControl(wmsSelectControl);
>>
>>
>>
>> /Lukas
>>
>>
>>
>> *Från:* man...@go... [mailto:
>> man...@go...] *För *Jon Britton
>> *Skickat:* den 24 november 2010 16:42
>> *Till:* Lukas Johansson
>> *Kopia:* gwt-openlayers-users
>> *Ämne:* Re: [Gwt-openlayers-users] MapClickListener support
>>
>>
>>
>> Hi Lukas,
>>
>>
>>
>> You haven't misunderstood, I wasn't aware there was a map control for
>> this.  My client application is for displaying many WMS layers, possibly
>> from different servers.  The user can add/remove WMS layers as they see fit
>> by using their own WMS URLs.  What I want to do is display the feature info
>> for every layer currently visible on my map, but I'm struggling to figure
>> out how WMSGetFeatureInfo can be used for this as each control corresponds
>> to only one WMS URL.  Would I need to make a new control for each map layer?
>>
>>
>>
>> Another problem is that the GWT-Openlayers WMGetFeatureInfo control seems
>> to be incomplete as I can't access many of it's properties directly (such as
>> url, title, layers...).
>>
>>
>>
>> Thanks,
>>
>>
>>
>> Jon
>>
>>
>>
>> On 24 November 2010 15:37, Lukas Johansson <luk...@de...>
>> wrote:
>>
>> You want the x/y of the mouseclick in order to construct a
>> WMSGetFeautureInfo? Why not use the existing WMSGetFeatureInfo control to
>> begin with? This will handle the events, the request to the server and you
>> can get it to produce a parsable result in GML from witch you can create
>> features.
>>
>>
>>
>> Or have I misunderstood your usecase?
>>
>> /Lukas
>>
>>
>>
>>
>>
>> *Från:* Jon Britton [mailto:jon...@go...]
>> *Skickat:* den 24 november 2010 15:20
>> *Till:* gwt-openlayers-users
>> *Ämne:* [Gwt-openlayers-users] MapClickListener support
>>
>>
>>
>> Hi
>>
>>
>>
>> I'm trying to register a MapClickListener so that I can generate a
>> GetFeatureInfo request using the mouse x and y coordinates.  Here is what
>> I've got so far:
>>
>>
>>
>> mw.getMap().getListeners().add(new MapClickListener() {
>>
>>          @Override
>>
>>          public void onClick(MapClickEvent e) {
>>
>>                  SC.say("Map click at " + e.getLonLat());
>>
>>          }
>>
>> });
>>
>>
>>
>> However, getListeners() isn't supported as far as I can tell (I get an
>> UnsupportedOperationException on the first line above).  Are there any plans
>> to implement this soon?  Alternatively, is there any other way to access the
>> map coordinates of the mouse cursor?
>>
>>
>>
>> Thanks,
>>
>>
>>
>> Jon
>>
>>
>>
>> ------------------------------------------------------------------------------
>> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
>> Tap into the largest installed PC base & get more eyes on your game by
>> optimizing for Intel(R) Graphics Technology. Get started today with the
>> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
>> http://p.sf.net/sfu/intelisp-dev2dev
>> _______________________________________________
>> Gwt-openlayers-users mailing list
>> Gwt...@li...
>> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>>
>>
>>
>>
>> ------------------------------------------------------------------------------
>> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
>> Tap into the largest installed PC base & get more eyes on your game by
>> optimizing for Intel(R) Graphics Technology. Get started today with the
>> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
>> http://p.sf.net/sfu/intelisp-dev2dev
>> _______________________________________________
>> Gwt-openlayers-users mailing list
>> Gwt...@li...
>> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>>
>>
>

Re: [Gwt-openlayers-users] MapClickListener support

[Jon B. <jon...@go...>]

Hi Lukas, thanks for the help.  Could you please tell me where I can get the
latest GWT-OpenLayers build? I can't seem to find it.

Cheers,

Jon

On 24 November 2010 16:01, Lukas Johansson <luk...@de...>wrote:

> I’ve commited a version that make the control a more complete and which
> uses the drilldown parameter introduced in OL 2.9[1] which can be used to
> access multiple servers.
>
> In  october we realized that my patch hadn’t been commited so this was
> taken care of, however I do not think that its in the current stable build.
> Instead you need to checkout your own version.
>
>
>
> [1]
> http://dev.openlayers.org/releases/OpenLayers-2.9.1/doc/apidocs/files/OpenLayers/Control/WMSGetFeatureInfo-js.html#OpenLayers.Control.WMSGetFeatureInfo.drillDown
>
>
>
> You add the controller to the map, if you do not use drilldown only to top
> layer is queried. Most settings are set in WmsGetFeatureInfoOptions and not
> on the control itself.
>
>
>
> Usage is something along this path (copied from our working code, but you
> get the idea):
>
> WMSGetFeatureInfoOptions options = new WMSGetFeatureInfoOptions();
>
> options.setLayers(arrayOfLayersToQuery));
>                               //allows you to tell what layers that should
> be queried
>
> options.setDrillDown(true);
>
> options.setQueryVisible(true);
>
> options.setInfoFormat("application/vnd.ogc.gml");
>                        //return result as gml
>
>
>
>
>
>
>
> wmsSelectControl = new WMSGetFeatureInfo(options);
>
> wmsSelectControl.addGetFeatureListener(new GetFeatureInfoListener(){
>
>
> public void onGetFeatureInfo(GetFeatureInfoEvent eventObject) {
>
>     VectorFeature[] features = eventObject.getFeatures();
>
>
>     String html = "foo";
>
>     FrameCloud popup = new FramedCloud("MapFeaturePopup",
> features[0].getCenterLonLat(), new Size(300, 400), html);
>
> }
>
> }
>
> map.addControl(wmsSelectControl);
>
>
>
> /Lukas
>
>
>
> *Från:* man...@go... [mailto:
> man...@go...] *För *Jon Britton
> *Skickat:* den 24 november 2010 16:42
> *Till:* Lukas Johansson
> *Kopia:* gwt-openlayers-users
> *Ämne:* Re: [Gwt-openlayers-users] MapClickListener support
>
>
>
> Hi Lukas,
>
>
>
> You haven't misunderstood, I wasn't aware there was a map control for this.
>  My client application is for displaying many WMS layers, possibly from
> different servers.  The user can add/remove WMS layers as they see fit by
> using their own WMS URLs.  What I want to do is display the feature info for
> every layer currently visible on my map, but I'm struggling to figure out
> how WMSGetFeatureInfo can be used for this as each control corresponds to
> only one WMS URL.  Would I need to make a new control for each map layer?
>
>
>
> Another problem is that the GWT-Openlayers WMGetFeatureInfo control seems
> to be incomplete as I can't access many of it's properties directly (such as
> url, title, layers...).
>
>
>
> Thanks,
>
>
>
> Jon
>
>
>
> On 24 November 2010 15:37, Lukas Johansson <luk...@de...>
> wrote:
>
> You want the x/y of the mouseclick in order to construct a
> WMSGetFeautureInfo? Why not use the existing WMSGetFeatureInfo control to
> begin with? This will handle the events, the request to the server and you
> can get it to produce a parsable result in GML from witch you can create
> features.
>
>
>
> Or have I misunderstood your usecase?
>
> /Lukas
>
>
>
>
>
> *Från:* Jon Britton [mailto:jon...@go...]
> *Skickat:* den 24 november 2010 15:20
> *Till:* gwt-openlayers-users
> *Ämne:* [Gwt-openlayers-users] MapClickListener support
>
>
>
> Hi
>
>
>
> I'm trying to register a MapClickListener so that I can generate a
> GetFeatureInfo request using the mouse x and y coordinates.  Here is what
> I've got so far:
>
>
>
> mw.getMap().getListeners().add(new MapClickListener() {
>
>          @Override
>
>          public void onClick(MapClickEvent e) {
>
>                  SC.say("Map click at " + e.getLonLat());
>
>          }
>
> });
>
>
>
> However, getListeners() isn't supported as far as I can tell (I get an
> UnsupportedOperationException on the first line above).  Are there any plans
> to implement this soon?  Alternatively, is there any other way to access the
> map coordinates of the mouse cursor?
>
>
>
> Thanks,
>
>
>
> Jon
>
>
>
> ------------------------------------------------------------------------------
> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
> Tap into the largest installed PC base & get more eyes on your game by
> optimizing for Intel(R) Graphics Technology. Get started today with the
> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
> http://p.sf.net/sfu/intelisp-dev2dev
> _______________________________________________
> Gwt-openlayers-users mailing list
> Gwt...@li...
> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>
>
>
>
> ------------------------------------------------------------------------------
> Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
> Tap into the largest installed PC base & get more eyes on your game by
> optimizing for Intel(R) Graphics Technology. Get started today with the
> Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
> http://p.sf.net/sfu/intelisp-dev2dev
> _______________________________________________
> Gwt-openlayers-users mailing list
> Gwt...@li...
> https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>
>

Re: [Gwt-openlayers-users] MapClickListener support

[Lukas J. <luk...@de...>]

I've commited a version that make the control a more complete and which uses the drilldown parameter introduced in OL 2.9[1] which can be used to access multiple servers.

In  october we realized that my patch hadn't been commited so this was taken care of, however I do not think that its in the current stable build. Instead you need to checkout your own version.

 

[1] http://dev.openlayers.org/releases/OpenLayers-2.9.1/doc/apidocs/files/OpenLayers/Control/WMSGetFeatureInfo-js.html#OpenLayers.Control.WMSGetFeatureInfo.drillDown

 

You add the controller to the map, if you do not use drilldown only to top layer is queried. Most settings are set in WmsGetFeatureInfoOptions and not on the control itself.

 

Usage is something along this path (copied from our working code, but you get the idea):

WMSGetFeatureInfoOptions options = new WMSGetFeatureInfoOptions(); 

options.setLayers(arrayOfLayersToQuery));                                //allows you to tell what layers that should be queried

options.setDrillDown(true);                                           

options.setQueryVisible(true);

options.setInfoFormat("application/vnd.ogc.gml");                        //return result as gml

 

 

 

wmsSelectControl = new WMSGetFeatureInfo(options);

wmsSelectControl.addGetFeatureListener(new GetFeatureInfoListener(){        

public void onGetFeatureInfo(GetFeatureInfoEvent eventObject) {

    VectorFeature[] features = eventObject.getFeatures();                   

    String html = "foo";

    FrameCloud popup = new FramedCloud("MapFeaturePopup", features[0].getCenterLonLat(), new Size(300, 400), html); 

}

}

map.addControl(wmsSelectControl);

 

/Lukas

 

Från: man...@go... [mailto:man...@go...] För Jon Britton
Skickat: den 24 november 2010 16:42
Till: Lukas Johansson
Kopia: gwt-openlayers-users
Ämne: Re: [Gwt-openlayers-users] MapClickListener support

 

Hi Lukas,

 

You haven't misunderstood, I wasn't aware there was a map control for this.  My client application is for displaying many WMS layers, possibly from different servers.  The user can add/remove WMS layers as they see fit by using their own WMS URLs.  What I want to do is display the feature info for every layer currently visible on my map, but I'm struggling to figure out how WMSGetFeatureInfo can be used for this as each control corresponds to only one WMS URL.  Would I need to make a new control for each map layer?

 

Another problem is that the GWT-Openlayers WMGetFeatureInfo control seems to be incomplete as I can't access many of it's properties directly (such as url, title, layers...).

 

Thanks,

 

Jon

 

On 24 November 2010 15:37, Lukas Johansson <luk...@de...> wrote:

You want the x/y of the mouseclick in order to construct a WMSGetFeautureInfo? Why not use the existing WMSGetFeatureInfo control to begin with? This will handle the events, the request to the server and you can get it to produce a parsable result in GML from witch you can create features.

 

Or have I misunderstood your usecase?

/Lukas

 

 

Från: Jon Britton [mailto:jon...@go...] 
Skickat: den 24 november 2010 15:20
Till: gwt-openlayers-users
Ämne: [Gwt-openlayers-users] MapClickListener support

 

Hi

 

I'm trying to register a MapClickListener so that I can generate a GetFeatureInfo request using the mouse x and y coordinates.  Here is what I've got so far: 

 

mw.getMap().getListeners().add(new MapClickListener() {

         @Override

         public void onClick(MapClickEvent e) {

                 SC.say("Map click at " + e.getLonLat());

         }

});

 

However, getListeners() isn't supported as far as I can tell (I get an UnsupportedOperationException on the first line above).  Are there any plans to implement this soon?  Alternatively, is there any other way to access the map coordinates of the mouse cursor?

 

Thanks,

 

Jon


------------------------------------------------------------------------------
Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
Tap into the largest installed PC base & get more eyes on your game by
optimizing for Intel(R) Graphics Technology. Get started today with the
Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
http://p.sf.net/sfu/intelisp-dev2dev
_______________________________________________
Gwt-openlayers-users mailing list
Gwt...@li...
https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users

 

Re: [Gwt-openlayers-users] MapClickListener support

[Jon B. <jon...@go...>]

Hi Lukas,

You haven't misunderstood, I wasn't aware there was a map control for this.
 My client application is for displaying many WMS layers, possibly from
different servers.  The user can add/remove WMS layers as they see fit by
using their own WMS URLs.  What I want to do is display the feature info for
every layer currently visible on my map, but I'm struggling to figure out
how WMSGetFeatureInfo can be used for this as each control corresponds to
only one WMS URL.  Would I need to make a new control for each map layer?

Another problem is that the GWT-Openlayers WMGetFeatureInfo control seems to
be incomplete as I can't access many of it's properties directly (such as
url, title, layers...).

Thanks,

Jon

On 24 November 2010 15:37, Lukas Johansson <luk...@de...>wrote:

> You want the x/y of the mouseclick in order to construct a
> WMSGetFeautureInfo? Why not use the existing WMSGetFeatureInfo control to
> begin with? This will handle the events, the request to the server and you
> can get it to produce a parsable result in GML from witch you can create
> features.
>
>
>
> Or have I misunderstood your usecase?
>
> /Lukas
>
>
>
>
>
> *Från:* Jon Britton [mailto:jon...@go...]
> *Skickat:* den 24 november 2010 15:20
> *Till:* gwt-openlayers-users
> *Ämne:* [Gwt-openlayers-users] MapClickListener support
>
>
>
> Hi
>
>
>
> I'm trying to register a MapClickListener so that I can generate a
> GetFeatureInfo request using the mouse x and y coordinates.  Here is what
> I've got so far:
>
>
>
> mw.getMap().getListeners().add(new MapClickListener() {
>
>          @Override
>
>          public void onClick(MapClickEvent e) {
>
>                  SC.say("Map click at " + e.getLonLat());
>
>          }
>
> });
>
>
>
> However, getListeners() isn't supported as far as I can tell (I get an
> UnsupportedOperationException on the first line above).  Are there any plans
> to implement this soon?  Alternatively, is there any other way to access the
> map coordinates of the mouse cursor?
>
>
>
> Thanks,
>
>
>
> Jon
>
>
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>
>

Re: [Gwt-openlayers-users] MapClickListener support

[Lukas J. <luk...@de...>]

You want the x/y of the mouseclick in order to construct a WMSGetFeautureInfo? Why not use the existing WMSGetFeatureInfo control to begin with? This will handle the events, the request to the server and you can get it to produce a parsable result in GML from witch you can create features.

 

Or have I misunderstood your usecase?

/Lukas

 

 

Från: Jon Britton [mailto:jon...@go...] 
Skickat: den 24 november 2010 15:20
Till: gwt-openlayers-users
Ämne: [Gwt-openlayers-users] MapClickListener support

 

Hi

 

I'm trying to register a MapClickListener so that I can generate a GetFeatureInfo request using the mouse x and y coordinates.  Here is what I've got so far: 

 

mw.getMap().getListeners().add(new MapClickListener() {

         @Override

         public void onClick(MapClickEvent e) {

                 SC.say("Map click at " + e.getLonLat());

         }

});

 

However, getListeners() isn't supported as far as I can tell (I get an UnsupportedOperationException on the first line above).  Are there any plans to implement this soon?  Alternatively, is there any other way to access the map coordinates of the mouse cursor?

 

Thanks,

 

Jon

[Gwt-openlayers-users] MapClickListener support

[Jon B. <jon...@go...>]

Hi

I'm trying to register a MapClickListener so that I can generate a
GetFeatureInfo request using the mouse x and y coordinates.  Here is what
I've got so far:

mw.getMap().getListeners().add(new MapClickListener() {
@Override
 public void onClick(MapClickEvent e) {
SC.say("Map click at " + e.getLonLat());
 }
});

However, getListeners() isn't supported as far as I can tell (I get an
UnsupportedOperationException on the first line above).  Are there any plans
to implement this soon?  Alternatively, is there any other way to access the
map coordinates of the mouse cursor?

Thanks,

Jon

Re: [Gwt-openlayers-users] Handler Hover (Control), how?

[Edwin C. <com...@gm...>]

Hi Andrew,

Every place where you refer to an object that has been placed on the
window you need $wnd , so that is everywhere where you reference
OpenLayers.something it should be $wnd.OpenLayers.something.

Greetings,
Edwin

On 4 November 2010 00:22, Andrew Hughes <ahh...@gm...> wrote:
> Getting close but not yet, I think my native javascript is fundementally
> flawed... says "OpenLayers is undefined".... perhaps I am missing some
> $wnd.* somewhere :'( Any idea's? Sorry to bug people...
> ------------------------------------------------------------------------------------
> public class HoverControl extends Control {
>     public interface HoverControlListener {
>         void onPause(JSObject evt);
>         void onMove(JSObject evt);
>     }
>     protected HoverControl(JSObject element) {
>         super(element);
>     }
>     public HoverControl(HoverControlListener listener) {
>         this(HoverControlImpl.create(listener));
>     }
>     public static HoverControl narrowToHoverControl(JSObject element) {
>         return (element == null) ? null: new HoverControl(element);
>     }
> }
> ------------------------------------------------------------------------------------
> class HoverControlImpl {
>     public static native JSObject create(HoverControl.HoverControlListener
> callback) /*-{
>         OpenLayers.Control.Hover = OpenLayers.Class(OpenLayers.Control, {
>
>                 defaultHandlerOptions: {
>                     'delay': 500,
>                     'pixelTolerance': null,
>                     'stopMove': false
>                 },
>
>                 initialize: function(options) {
>                     this.handlerOptions = OpenLayers.Util.extend(
>                         {}, this.defaultHandlerOptions
>                     );
>                     OpenLayers.Control.prototype.initialize.apply(
>                         this, arguments
>                     );
>                     this.handler = new OpenLayers.Handler.Hover(
>                         this,
>                         {'pause': this.onPause, 'move': this.onMove},
>                         this.handlerOptions
>                     );
>                 },
>
>                 onPause: function(evt) {
>
>  callback.@com.acme.client.hover.HoverControl.HoverControlListener::onPause(Lorg/gwtopenmaps/openlayers/client/util/JSObject;)(evt);
>                 },
>
>                 onMove: function(evt) {
>
>  callback.@com.acme.client.hover.HoverControl.HoverControlListener::onPause(Lorg/gwtopenmaps/openlayers/client/util/JSObject;)(evt);
>                 }
>             });
>             return new $wnd.OpenLayers.Control.Hover();
>     }-*/;
>
> }
> ------------------------------------------------------------------------------------
>
>
> On Wed, Nov 3, 2010 at 6:08 AM, Edwin Commandeur
> <com...@gm...> wrote:
>>
>> Hi Andrew,
>>
>> The example you send works nicely, so I wonder what you are confused
>> about in native JavaScript. Seems a perfectly fine example of a custom
>> Handler.
>>
>> A way to incorporate this handler in GWT-OL is by adding the code for
>> the Hover control in a javascript file and distribute that with GWT-OL
>> and wrap the native javascript like we wrap other Controls.
>>
>> There are already some javascript utility functions which are in:
>>
>> gwt-openlayers-client/src/main/java/org/gwtopenmaps/openlayers/public/js/gwt-openlayers/utils.js
>>
>> Maybe we could put a ol-extensions.js file in there, and also make
>> clear in the GWT wrapper class namespace that it uses stuff in this
>> extensions file.
>>
>> Another way would be to distribute the handler code with
>> GWT-OpenLayers and explain in the wrapper Javadoc that the js file
>> needs to be loaded in the page to use that specific wrapper class.
>>
>> A combination of Javascript and GWT wrapper seems the way to go, since
>> I don't see a way to provide a Control in native GWT (you would always
>> need JSNI to add functions to the Control as fas as I can see).
>>
>> Greetings,
>> Edwin
>>
>> On 2 November 2010 13:45, Andrew Hughes <ahh...@gm...> wrote:
>> > Hi Everyone,
>> > We have a requirement that we need to register a hover handler on a map.
>> > GWT-OpenLayers can't do this yet and the native javascript has me a
>> > little
>> > confused... I have a simple javascript example working below. This seems
>> > like it would be complex to wrap, advice would be most appreciated.
>> >
>> >
>> > <html xmlns="http://www.w3.org/1999/xhtml">
>> >     <head>
>> >         <link rel="stylesheet"
>> > href="http://openlayers.org/dev/theme/default/style.css" type="text/css"
>> > />
>> >         <link rel="stylesheet"
>> > href="http://openlayers.org/dev/examples/style.css" type="text/css" />
>> >
>> >         <style type="text/css">
>> >             #map {
>> >                 width: 640px;
>> >                 height: 480px;
>> >             }
>> >         </style>
>> >         <script
>> > src="http://openlayers.org/dev/lib/Firebug/firebug.js"></script>
>> >         <script src="http://openlayers.org/dev/OpenLayers.js"></script>
>> >         <script type="text/javascript">
>> >
>> >             OpenLayers.Control.Hover =
>> > OpenLayers.Class(OpenLayers.Control,
>> > {
>> >                 defaultHandlerOptions: {
>> >                     'delay': 500,
>> >                     'pixelTolerance': null,
>> >                     'stopMove': false
>> >                 },
>> >
>> >                 initialize: function(options) {
>> >                     this.handlerOptions = OpenLayers.Util.extend(
>> >                         {}, this.defaultHandlerOptions
>> >                     );
>> >                     OpenLayers.Control.prototype.initialize.apply(
>> >                         this, arguments
>> >                     );
>> >                     this.handler = new OpenLayers.Handler.Hover(
>> >                         this,
>> >                         {'pause': this.onPause, 'move': this.onMove},
>> >                         this.handlerOptions
>> >                     );
>> >                 },
>> >
>> >                 onPause: function(evt) {
>> >                     var output = document.getElementById('output');
>> >                     var msg = 'pause ' + evt.xy;
>> >                     output.value = output.value + msg + "\r\n";
>> >                 },
>> >
>> >                 onMove: function(evt) {
>> >                     // do something... like cancel
>> >                 }
>> >             });
>> >
>> >             var map;
>> >
>> >             function init(){
>> >                 map = new OpenLayers.Map('map');
>> >                 var layer = new OpenLayers.Layer.WMS('OpenLayers
>> > WMS','http://vmap0.tiles.osgeo.org/wms/vmap0',{layers: 'basic'});
>> >                 map.addLayers([layer]);
>> > var hoverControl = new OpenLayers.Control.Hover({
>> >                     handlerOptions: {
>> >                         'delay': 500
>> >                     }
>> >                 });
>> > map.addControl(hoverControl);
>> >                 map.zoomToMaxExtent();
>> > hoverControl.activate();
>> >             }
>> >
>> >         </script>
>> >     </head>
>> >     <body onload="init()">
>> >         <div id="map" class="smallmap"></div>
>> > <textarea class="output" id="output"></textarea></td>
>> >     </body>
>> > </html>
>> >
>> >
>> >
>> > ------------------------------------------------------------------------------
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>> > https://lists.sourceforge.net/lists/listinfo/gwt-openlayers-users
>> >
>> >
>
>