Menu
▾
▴
Re: [Geotools-gt2-users] WMS Error transforming bbox
|
From: Davis F. <dav...@gm...> - 2005-12-20 03:34:06
|
Hi, just a follow up to this. I'm trying to step-debug this problem.=20
Using GeoServer from trunk, when I hit GeoTools StreamingRenderer the
debugger steps out of place. The revision of StreamingRenderer says:
version $Id: StreamingRenderer.java 17289 2005-12-12 15:11:54Z dblasby $
It is from GeoTools 2.1.x checkout:
Revision: 17289
Author: dblasby
Date: 10:11:54 AM, Monday, December 12, 2005
Message:
fixes so the buggy test cases work. (from trunk)
----
Modified : /geotools/branches/2.1.x/module/main/src/org/geotools/renderer/l=
ite/StreamingRenderer.java
Can someone on the list verify what revision of GeoTools 2.1.x I
should check out (that is in the main jar) - so the debugger steps in
the right place?
Would it be better to just build and install the latest 2.1.x trunk
myself for GeoTools?
Regards,
Davis
On 12/14/05, Davis Ford <dav...@gm...> wrote:
> Chris / Justin -- thank you for the helpful advice. What Chris
> suggested is exactly where I was thinking the problem lies. I do not
> believe we have correctly implemented the methods.
>
> > CoordinateReferenceSystem sourceCrs =3D
> > currLayer.getFeatureSource().getSchema()
> > .getDefaultGeometry().getCoordinateSystem();
>
> I do not know what getCoordinateSystem returns, but I suspect we have
> not properly set this up in the default geometry for the feature...I
> just have not had adequate time to check it, and it is on my list to
> do very soon.
>
> The version I currently have is a trunk checkout:
>
> Revision: 4023
> Author: bowens
> Date: 12:54:40 PM, Monday, December 12, 2005
> Message:
> uses the cached lat long bounding box, to be quicker. Still needs to
> reproject it
> ----
> Modified : /trunk/geoserver/src/org/vfny/geoserver/action/MapPreviewActio=
n.java
>
> I am hoping once I fix this, we'll be happily displaying via WMS, but
> I haven't gotten there yet.
>
> Regards,
> Davis
>
>
> On 12/14/05, Justin Deoliveira <jde...@un...> wrote:
> > This is the 3rd time I have seen this exact error come up in two days. =
I
> > am starting to think that this might not be a coincidence.
> >
> > Davis, Rob, Lena: can you tells us what version of geoserver you are
> > using? Thanks.
> >
> > -Justin
> >
> > Davis Ford wrote:
> > > Hi,
> > >
> > > We implemented our own test datastore in geotools, and are trying to
> > > make it work via WMS using GeoServer. WFS seems to work without a
> > > hitch using GeoServer.
> > >
> > > Using WMS -- however..the following query:
> > >
> > > http://localhost:8080/geoserver/wms?version=3D1.3.0&request=3DGetMap&=
layers=3Dteleatlas:RoadElement&BBOX=3D5.7,49.4,6.5,50.1&srs=3DEPSG:4326&wid=
th=3D300&height=3D300&format=3Dimage/gif&STYLES=3Dsimple_road
> > >
> > > produces a blank map image, and eclipse debugger reports the followin=
g:
> > >
> > > [SEVERE] org.geotools.renderer.lite.StreamingRenderer$DefaultRenderLi=
stener
> > > - Error transforming bbox
> > > [SEVERE] org.geotools.renderer.lite.StreamingRenderer$DefaultRenderLi=
stener
> > > - Exception rendering layer org.geotools.map.DefaultMapLayer@118317f
> > >
> > > Tracing the debugger in eclipse,
> > > org.vfny.geoserver.wms.responses.produceMap() calls:
> > > renderer.paint(graphic, paintArea, at); at line 244 in produceMap()
> > >
> > > I did an SVN co on the 2.1.x branch of GeoTools and imported into
> > > eclipse, but my debugger's execution pointer is not correct when I
> > > step into org.geotools.renderer.lite.StreamingRenderer so I'm having
> > > some trouble finding the problem.
> > >
> > > It does seem this problem has been experienced by other users before.
> > > Is it possible that someone on the list might help explain what may b=
e
> > > going wrong?
> > >
> > > The try block where the exception is caught reads:
> > >
> > > // Then create the geometry filters. We have to create one for each
> > > // geometric
> > > // attribute used during the rendering as the feature
> > > may have more
> > > // than one
> > > // and the styles could use non default geometric one=
s
> > > CoordinateReferenceSystem sourceCrs =3D
> > > currLayer.getFeatureSource().getSchema()
> > > .getDefaultGeometry().getCoordinateSystem();
> > >
> > > if (sourceCrs !=3D null && !sourceCrs.equals(destinat=
ionCrs)) {
> > > // get an unprojected envelope since the feature
> > > source is operating on
> > > // unprojected geometries
> > > transform =3D
> > > operationFactory.createOperation(destinationCrs,sourceCrs).getMathTra=
nsform();
> > > if (transform !=3D null && !transform.isIdentity(=
)) {
> > > // Envelope eee=3D JTS.transform(envelope,
> > > transform);// this is the old way
> > > //10 =3D make 10 points on each side of the b=
box
> > > & transform the polygon
> > > envelope =3D JTS.transform(envelope,
> > > transform,10); // this will usually be a "bigger" bbox
> > > } else
> > > transform =3D null; //reset transform
> > > }
> > >
> > > Filter filter =3D null;
> > > if (!isMemoryPreloadingEnabled()) {
> > > BBoxExpression rightBBox =3D
> > > filterFactory.createBBoxExpression(envelope);
> > > filter =3D createBBoxFilters(schema, attributes, =
rightBBox);
> > > } else {
> > > filter =3D Filter.NONE;
> > > }
> > >
> > > // now build the query using only the attributes and
> > > the bounding
> > > // box needed
> > > DefaultQuery q =3D new DefaultQuery(schema.getTypeNam=
e());
> > > q.setFilter(filter);
> > > q.setPropertyNames(attributes);
> > > query =3D q;
> > >
> > > I'm just looking for some helpful pointers on what to try next from
> > > any veterans familiar with this area of the code --
> > >
> > > Thx...
> > >
> > > Davis
> > >
> > >
> > > -------------------------------------------------------
> > > This SF.net email is sponsored by: Splunk Inc. Do you grep through lo=
g files
> > > for problems? Stop! Download the new AJAX search engine that makes
> > > searching your log files as easy as surfing the web. DOWNLOAD SPLUN=
K!
> > > http://ads.osdn.com/?ad_idv37&alloc_id=16865&op=3Dclick
> > > _______________________________________________
> > > Geotools-gt2-users mailing list
> > > Geo...@li...
> > > https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
> > >
> >
> >
> > --
> > Justin Deoliveira
> > The Open Planning Project
> > http://topp.openplans.org
> >
>
|
