Index: lams_common/src/java/org/lamsfoundation/lams/learningdesign/service/ExportToolContentService.java
===================================================================
diff -u -ref201100ffd7ebdfcb18c72528f062379e4c65d3 -r78fe5eb131ad1daac1ccf368f2059abe1d559aed
--- lams_common/src/java/org/lamsfoundation/lams/learningdesign/service/ExportToolContentService.java	(.../ExportToolContentService.java)	(revision ef201100ffd7ebdfcb18c72528f062379e4c65d3)
+++ lams_common/src/java/org/lamsfoundation/lams/learningdesign/service/ExportToolContentService.java	(.../ExportToolContentService.java)	(revision 78fe5eb131ad1daac1ccf368f2059abe1d559aed)
@@ -667,7 +667,7 @@
 	    if (format != ExportToolContentService.PACKAGE_FORMAT_IMS) {
 		String svgFileName = FileUtil.getFullPath(contentDir, ExportToolContentService.SVG_IMAGE_FILE_NAME);
 		Writer svgFile = new OutputStreamWriter(new FileOutputStream(svgFileName), "UTF-8");
-		SVGGenerator svgGenerator = SVGGenerator.getInstance();
+		SVGGenerator svgGenerator = new SVGGenerator();
 		svgGenerator.generateSvg(ldDto);
 		OutputFormat outputFormat = new OutputFormat(svgGenerator.getSVGDocument());
 		outputFormat.setLineWidth(65);
Index: lams_common/src/java/org/lamsfoundation/lams/util/svg/SVGConstants.java
===================================================================
diff -u -ra6a7639e9b454cad77bb2e994192777a8458f8d8 -r78fe5eb131ad1daac1ccf368f2059abe1d559aed
--- lams_common/src/java/org/lamsfoundation/lams/util/svg/SVGConstants.java	(.../SVGConstants.java)	(revision a6a7639e9b454cad77bb2e994192777a8458f8d8)
+++ lams_common/src/java/org/lamsfoundation/lams/util/svg/SVGConstants.java	(.../SVGConstants.java)	(revision 78fe5eb131ad1daac1ccf368f2059abe1d559aed)
@@ -30,8 +30,8 @@
     public static final String SVG_NAMESPACE_XLINK = "http://www.w3.org/1999/xlink";
     
     // canvas dimensions
-    public static final int CANVAS_WIDTH = 1024;
-    public static final int CANVAS_HEIGHT = 768;
+    public static final String CANVAS_DEFAULT_WIDTH = "100%";
+    public static final String CANVAS_DEFAULT_HEIGHT = "100%";
     
     // gate dimensions
     public static final int GATE_WIDTH = 30;
Index: lams_common/src/java/org/lamsfoundation/lams/util/svg/SVGGenerator.java
===================================================================
diff -u -ra6a7639e9b454cad77bb2e994192777a8458f8d8 -r78fe5eb131ad1daac1ccf368f2059abe1d559aed
--- lams_common/src/java/org/lamsfoundation/lams/util/svg/SVGGenerator.java	(.../SVGGenerator.java)	(revision a6a7639e9b454cad77bb2e994192777a8458f8d8)
+++ lams_common/src/java/org/lamsfoundation/lams/util/svg/SVGGenerator.java	(.../SVGGenerator.java)	(revision 78fe5eb131ad1daac1ccf368f2059abe1d559aed)
@@ -52,7 +52,7 @@
          f.getContentPane().add(canvas);
          canvas.setSVGDocument(svgGenerator.getSVGDocument());
          f.pack();
-         f.setSize(CANVAS_WIDTH, CANVAS_HEIGHT);
+         f.setSize(CANVAS_DEFAULT_WIDTH, CANVAS_DEFAULT_HEIGHT);
          f.setVisible(true); 
  * 
  * @author Andrey Balan
@@ -61,23 +61,21 @@
     
     private SVGDocument doc;
     
-    private SVGGenerator(SVGDocument svgGDocument) {
-	doc = svgGDocument;
-    }
-    
     /**
      * Sets up Svg root and defs. 
      */    
-    public static SVGGenerator getInstance() {
+    private void initializeSvgDocument(String scale, String width, String height) {
+	String canvasWidth = (width == null) ? CANVAS_DEFAULT_WIDTH : width;
+	String canvasGeigth = (height == null) ? CANVAS_DEFAULT_HEIGHT : height;
 	
         // Create an SVG document.
         DOMImplementation impl = SVGDOMImplementation.getDOMImplementation();
-        SVGDocument doc = (SVGDocument) impl.createDocument(SVG_NAMESPACE, "svg", null);
+        doc = (SVGDocument) impl.createDocument(SVG_NAMESPACE, "svg", null);
         // Get the root element (the 'svg' element).
         Element svgRoot = doc.getDocumentElement();
         // Set the width and height attributes on the root 'svg' element.
-        svgRoot.setAttributeNS(null, "width", Integer.toString(CANVAS_WIDTH));
-        svgRoot.setAttributeNS(null, "height", Integer.toString(CANVAS_HEIGHT));
+        svgRoot.setAttributeNS(null, "width", CANVAS_DEFAULT_WIDTH);
+        svgRoot.setAttributeNS(null, "height", CANVAS_DEFAULT_HEIGHT);
         svgRoot.setAttributeNS(null, "xmlns", SVG_NAMESPACE);
         svgRoot.setAttributeNS(null, "xmlns:xlink", SVG_NAMESPACE_XLINK);
         
@@ -97,8 +95,7 @@
 	Element path = doc.createElementNS(SVG_NAMESPACE, "path");
 	path.setAttributeNS(null, "d", "M 0 0 L 10 5 L 0 10 z");
 	marker.appendChild(path);	
-		
-	return new SVGGenerator(doc);
+
     }
     
     public SVGDocument getSVGDocument() {
@@ -113,6 +110,7 @@
      * @throws IOException
      */
     public void generateSvg(LearningDesignDTO learningDesign) throws JDOMException, IOException {
+	initializeSvgDocument("0.5", null, null);
 
         //initialize all tree nodes
         ArrayList<AuthoringActivityDTO> activities = learningDesign.getActivities();