geotools-commits

[James M. <jma...@us...>]

Update of /cvsroot/geotools/geotools/src/demonstrations
In directory usw-pr-cvs1:/tmp/cvs-serv27234

Modified Files:
	ImageExample.java ImageExample.html 
Log Message:
Moved image bounds into the param tags of the applet


Index: ImageExample.java
===================================================================
RCS file: /cvsroot/geotools/geotools/src/demonstrations/ImageExample.java,v
retrieving revision 1.3
retrieving revision 1.4
diff -w -C2 -d -r1.3 -r1.4
*** ImageExample.java	2001/09/18 11:35:57	1.3
--- ImageExample.java	2001/12/03 21:43:29	1.4
***************
*** 4,7 ****
--- 4,8 ----
  import java.net.*;
  import java.io.*;
+ import java.util.StringTokenizer;
  
  import uk.ac.leeds.ccg.geotools.*;
***************
*** 13,27 ****
   * and the image needs to be on the same server as the applet, otherwise you
   * will get java security problems.
   *
   * @author Cameron Shorter <a href="mailto:ca...@sh...">ca...@sh...</a>
   */
! public class ImageExample extends java.applet.Applet
! {
      Viewer view = new Viewer();
      Theme currentTheme;
-     GeoRectangle extent = new GeoRectangle(0,0,100,100);
      ImageLayer iLayer;
-     String imageString;
-     URL imageURL;
  
      public void init(){
--- 14,25 ----
   * and the image needs to be on the same server as the applet, otherwise you
   * will get java security problems.
+  * JM: Not sure this is true, works fine in a browser run localy for me...
   *
   * @author Cameron Shorter <a href="mailto:ca...@sh...">ca...@sh...</a>
   */
! public class ImageExample extends java.applet.Applet {
      Viewer view = new Viewer();
      Theme currentTheme;
      ImageLayer iLayer;
      
      public void init(){
***************
*** 33,48 ****
      
      public void start(){
          try{
!             imageString = this.getParameter("image");
!             imageURL = new URL(getCodeBase(),imageString);
          }
          catch(IOException e){
              this.showStatus("Error loading file "+ imageString + "\n" + e);
          }
- 
-         iLayer=new ImageLayer(this.imageURL,this.extent);
-         this.currentTheme=new Theme(iLayer);
-         this.view.addTheme(this.currentTheme);
-         view.setMapExtent(this.extent);
      }
      
--- 31,60 ----
      
      public void start(){
+         //get the name of the image to display
+         String imageString = this.getParameter("image");
+         //and its bounds (in the form x,y,width,height)
+         String boundsString = this.getParameter("bounds");
+         //get each part of the bounds.
+         StringTokenizer tok = new StringTokenizer(boundsString,",");
+         double x = new Double(tok.nextToken()).doubleValue();
+         double y = new Double(tok.nextToken()).doubleValue();
+         double w =  new Double(tok.nextToken()).doubleValue();
+         double h = new Double(tok.nextToken()).doubleValue();
+         //construct a GeoRectangle
+         GeoRectangle extent = new GeoRectangle(x,y,w,h);
+         
          try{
!             //create a URL that points to the image
!             URL imageURL = new URL(getCodeBase(),imageString);
!             //construct an image layer from the image and the bounds
!             iLayer=new ImageLayer(imageURL,extent);
!             //create a theme using the image layer
!             currentTheme=new Theme(iLayer);
!             //add the image to the viewer.
!             view.addTheme(this.currentTheme);
          }
          catch(IOException e){
              this.showStatus("Error loading file "+ imageString + "\n" + e);
          }
      }
      

Index: ImageExample.html
===================================================================
RCS file: /cvsroot/geotools/geotools/src/demonstrations/ImageExample.html,v
retrieving revision 1.3
retrieving revision 1.4
diff -w -C2 -d -r1.3 -r1.4
*** ImageExample.html	2001/09/10 22:33:55	1.3
--- ImageExample.html	2001/12/03 21:43:29	1.4
***************
*** 11,22 ****
  <H2>A basic map which uses an image to build a map layer.</H2>
  <P><APPLET ARCHIVE="jars/JimiCore.jar,jars/support.jar,jars/geotools.jar,jars/collections.jar" CODE="ImageExample.class"  WIDTH="470" HEIGHT="170" ALIGN="BOTTOM">
! <PARAM NAME="image" VALUE="images/logo.gif">
  </APPLET>
  </P>
- 
  <P>&lt;<A HREF="ImageExample.java">source</A>&gt;</P>
! 
  <P><CODE>&lt;APPLET ARCHIVE="jars/collections.jar,jars/JimiCore.jar,jars/geotools.jar" CODE=&quot;ImageExample.class&quot; WIDTH=430 HEIGHT=270&gt;<BR>
! &lt;PARAM NAME="image" VALUE="images/logo.jpg"&gt;<BR>
  &lt;/APPLET&gt;</CODE>
  
--- 11,23 ----
  <H2>A basic map which uses an image to build a map layer.</H2>
  <P><APPLET ARCHIVE="jars/JimiCore.jar,jars/support.jar,jars/geotools.jar,jars/collections.jar" CODE="ImageExample.class"  WIDTH="470" HEIGHT="170" ALIGN="BOTTOM">
! <PARAM NAME="image" VALUE="maps/worldview.gif">
! <param name="bounds" value="-180,-90,360,180">
  </APPLET>
  </P>
  <P>&lt;<A HREF="ImageExample.java">source</A>&gt;</P>
! <p>The applet requires two parameters, the first 'image' points to the relative location of the image to display, whils the second 'bounds' gives the spatial extent of the image.<br>
  <P><CODE>&lt;APPLET ARCHIVE="jars/collections.jar,jars/JimiCore.jar,jars/geotools.jar" CODE=&quot;ImageExample.class&quot; WIDTH=430 HEIGHT=270&gt;<BR>
! &lt;PARAM NAME="image" VALUE="maps/worldview.gif"&gt;<BR>
! &lt;PARAM NAME="bounds" VALUE="-180,-90,360,180"&gt;<BR>
  &lt;/APPLET&gt;</CODE>