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Cai,

1. The example on p.100 is running Mapyrus as a web server without Tomcat.

In this example, you create the file tutorialwms1.mapyrus with Mapyrus
commands and the web page tutorialwms1.html with an OpenLayers map.

Then you start Mapyrus with the command:

java -classpath mapyrus.jar org.mapyrus.Mapyrus -s 8410

Mapyrus listens on port 8410 for HTTP requests.

Then I enter the following URL:

http://localhost:8410/tutorialwms1.html

This web page uses OpenLayers.  OpenLayers calls Mapyrus
with URL http://localhost:8410/tutorialwms1.mapyrus.
Mapyrus reads the commands from tutorialwms1.mapyrus, creates
the image, and returns it to OpenLayers in the web browser:

Maybe this method is suitable for you?  Maybe you must use Tomcat?

2. If you work with Tomcat, then you must pass the Mapyrus commands
in the URL:  

layer = new OpenLayers.Layer.WMS( "Countries",
"servlet", {commands: commands, format: "image/png"});

You can also use the JavaScript encodeURIComponent() function:

layer = new OpenLayers.Layer.WMS( "Countries",
"servlet?commands=" + encodeURIComponent(commands),
{format: "image/png"});

or,

layer = new OpenLayers.Layer.WMS( "Countries",
"http://localhost:8080/mapyrus/servlet?format=image/png&commands=" + encodeURIComponent(commands));

Simon Chenery.
Mapyrus Developer

--- On Sun, 8/21/11, 蔡志明 <ca...@16...> wrote:

From: 蔡志明 <ca...@16...>
Subject: 2011082103New Question
To: "Simon Chenery" <sim...@ya...>
Date: Sunday, August 21, 2011, 5:23 PM

Hello,
     I have do research on geoserver these days. I have put geoserver.war in Tomcat and it can run without any configuration.
     I just use several lines in my Web Project when I want to call geoserver WMS.

                map = new OpenLayers.Map('area');
                var wmsLayer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
                    "http://localhost/geoserver/wms", {layers: 'Baselayers:fjshijie'} ); 
                        map.addLayer(wmsLayer);// 

      I have detected these lines in your manual(4.45  p100):

map = new OpenLayers.Map("map");
layer = new OpenLayers.Layer.WMS("Countries",
"http://localhost:8410/tutorialwms1.mapyrus", {format: "image/png"});
map.addLayer(layer);
map.setCenter(new OpenLayers.LonLat(5, 40), 5);
        There is no "servlet".It is the same as geoserver. 

But  you send me the following lines which are different from p100:
       MAPYRUS.layer1 = new OpenLayers.Layer.WMS("Countries",
                "servlet",
                {commands: MAPYRUS.commands1, format: "image/png"}
My question is:
   How can I do if I want to do as p100 in your tutorial? This is just my interest.

Cai
在2011-08-21，"Simon Chenery" <sim...@ya...> 写道： 
-----原始邮件-----
发件人:"Simon Chenery" <sim...@ya...>
发送时间:2011年8月21日 星期日
收件人:"蔡志明" <ca...@16...>
抄送:"Mapyrus Users" <map...@li...>
主题:Re: 2011082102New Questions

Hello Cai,

1. Yes, Mapyrus runs as an independent WMS server.

You must pass the Mapyrus commands to create the map display in the URL:

MAPYRUS.layer1 = new OpenLayers.Layer.WMS("Countries", "servlet",
{commands: MAPYRUS.commands1, format: "image/png"});

In this way, you can display any data, in any colour, in any style
by changing the JavaScript.

Other software (for example, Geoserver) stores configuration in the
Tomcat server.  Then a short URL can be used to create the layer
from OpenLayers.

Mapyrus stores no configuration in Tomcat.

2. There are two ways of running Mapyrus as a web server:

a) Mapyrus runs as a web server without Tomcat.
This is described in sections 4.39 to 4.45 in the manual.
You start Mapyrus and it runs continuously as a web server:

> java -classpath ../mapyrus.jar org.mapyrus.Mapyrus -s 8410
Mapyrus 1.106 11-August-2011
Number of threads available to HTTP server: 8
Accepting HTTP requests on port: 8410
2011.08.21 15:52:06.275 INFO: Thread-4: HTTP header: GET /foo.mapyrus HTTP/1.1

When you make a request to http://localhost:8410/foo.mapyrus
then the Mapyrus reads commands from the file foo.mapyrus,
runs the commands, and sends the output to the web browser.

b) mapyrus.war runs as a web application in Tomcat.
This is described in section 4.46 in the manual.
Deploy the WAR file in Tomcat, then you can pass Mapyrus
commands to generate the map display in the URL.

Because of Tomcat security it is difficult to save data and
configuration inside Tomcat.  The Mapyrus solution is to
pass all commands in the URL so there is no configuration
in Tomcat.

Decide which method you want to use.

Simon Chenery.
Mapyrus Developer

--- OnSun, 8/21/11, 蔡志明<ca...@16...>wrote:

From: 蔡志明 <ca...@16...>
Subject: 2011082102New Questions
To: "Simon Chenery" <sim...@ya...>
Date: Sunday, August 21, 2011, 10:00 AM

  Hello Chenery,
    Thanks for your replies.I have new questions.Please see attachment.
Cai

 > -----原始邮件-----
> 发件人: "Simon Chenery" <sim...@ya...>
> 发送时间: 2011年8月21日 星期日
> 收件人: "蔡志明" <ca...@16...>
> 抄送:map...@li...
> 主题: Re: 20110821Mapyrus Questions
>
> Hello Cai,
>
> --- On Sun, 8/21/11, 蔡志明 <ca...@16...> wrote:
> >
> > Hello Chenery,
> >    I have found the instruction in your tutorial for hging clone source.
>
> You can view the source code online at:
>
> http://mapyrus.hg.sourceforge.net/hgweb/mapyrus/mapyrus
>
> Click the 'files' link to see the files and directories.
>
> The source code can be checked out using the Mercurial
> version control tool:
>
> hg clone http://mapyrus.hg.sourceforge.net:8000/hgroot/mapyrus/mapyrus
>
> >    I still have one question:
> >      How to change the size of map tile?
> > Cai
>
> Setting the tile size is an OpenLayers function.
> The JavaScript command to set it is:
>
> MAPYRUS.map = new OpenLayers.Map('map', {tileSize: new OpenLayers.Size(512, 512)});
>
> Another solution is to use the 'singleTile' and 'ratio' options for the
> WMS layer to load exactly the area in the map:
>
> MAPYRUS.layer1 = new OpenLayers.Layer.WMS("Countries",
> "servlet",
> {commands: MAPYRUS.commands1, format: "image/png"}, {singleTile: true, ratio:1});
>
>
> Simon Chenery.
> Mapyrus Developer

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