X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=org.simantics.g3d.vtk%2Fsrc%2Forg%2Fsimantics%2Fg3d%2Fvtk%2Fhandlers%2FParallelPerspectiveHandler.java;h=43ec97a090dda0c78c4c2b6d6bf205d7b569373b;hb=99366a416fcd1e18e0cf54c8efd255abfc8a01f4;hp=855a0d145286696194ac03b0511878b7b7d8ab04;hpb=84132a1d750c45f9161afbd58b78572964e50d26;p=simantics%2F3d.git

diff --git a/org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/handlers/ParallelPerspectiveHandler.java b/org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/handlers/ParallelPerspectiveHandler.java
index 855a0d14..43ec97a0 100644
--- a/org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/handlers/ParallelPerspectiveHandler.java
+++ b/org.simantics.g3d.vtk/src/org/simantics/g3d/vtk/handlers/ParallelPerspectiveHandler.java
@@ -11,9 +11,6 @@
  *******************************************************************************/
 package org.simantics.g3d.vtk.handlers;
 
-import java.util.HashMap;
-import java.util.Map;
-
 import javax.vecmath.Vector3d;
 
 import org.eclipse.core.commands.AbstractHandler;
@@ -22,59 +19,72 @@ import org.eclipse.core.commands.ExecutionEvent;
 import org.eclipse.core.commands.ExecutionException;
 import org.eclipse.ui.IWorkbenchPart;
 import org.eclipse.ui.handlers.HandlerUtil;
+import org.simantics.g3d.math.MathTools;
 import org.simantics.g3d.vtk.common.VtkView;
 import org.simantics.utils.threads.AWTThread;
 import org.simantics.utils.threads.ThreadUtils;
 
+import vtk.vtkCamera;
+import vtk.vtkRenderer;
+
 public class ParallelPerspectiveHandler extends AbstractHandler {
 
 	
-	private Map<VtkView,Vector3d> cameraPos = new HashMap<VtkView, Vector3d>();
-	
 	@Override
 	public Object execute(ExecutionEvent event) throws ExecutionException {
-		 Command command = event.getCommand();
-	     boolean oldValue = HandlerUtil.toggleCommandState(command);
-	     final boolean activate = !oldValue;
-	     
-	     final IWorkbenchPart ap = HandlerUtil.getActiveEditor(event);
-	     final VtkView panel = (VtkView)ap.getAdapter(VtkView.class);
-	     
-	     ThreadUtils.asyncExec(AWTThread.getThreadAccess(), new Runnable() {
-			
+		Command command = event.getCommand();
+		boolean oldValue = HandlerUtil.toggleCommandState(command);
+		final boolean activate = !oldValue;
+
+		final IWorkbenchPart ap = HandlerUtil.getActiveEditor(event);
+		final VtkView panel = (VtkView)ap.getAdapter(VtkView.class);
+
+		ThreadUtils.asyncExec(AWTThread.getThreadAccess(), new Runnable() {
+
 			@Override
 			public void run() {
+			    vtkRenderer ren = panel.getRenderer();
+			    vtkCamera cam = ren.GetActiveCamera();
 				if (activate){
+
 					Vector3d focal = new Vector3d(panel.getRenderer().GetActiveCamera().GetFocalPoint());
 					Vector3d pos = new Vector3d(panel.getRenderer().GetActiveCamera().GetPosition());
-					cameraPos.put(panel, pos);
+					double dist = MathTools.distance(pos, focal);
+					cam.SetParallelScale(dist/4.0);
+					// camera must be moved backwards, or graphics get clipped when parallel view is zoomed out
+					// TODO : is there a better way to do this?
 					Vector3d dir = new Vector3d(pos);
 					dir.sub(focal);
 					dir.normalize();
 					dir.scale(100);
 					dir.add(focal);
-					panel.getRenderer().GetActiveCamera().SetPosition(dir.x, dir.y, dir.z);
-					
-					
-					panel.getRenderer().GetActiveCamera().SetParallelProjection(1);
-					panel.getRenderer().ResetCameraClippingRange();
+					cam.SetPosition(dir.x, dir.y, dir.z);
+
+					cam.SetParallelProjection(1);
+					ren.ResetCameraClippingRange();
 				} else {
-					panel.getRenderer().GetActiveCamera().SetParallelProjection(0);
-					Vector3d pos = cameraPos.get(panel);
-					if (pos != null) {
-						panel.getRenderer().GetActiveCamera().SetPosition(pos.x, pos.y, pos.z);
-					}
-					panel.getRenderer().ResetCameraClippingRange();
+				    
+				    double scale = cam.GetParallelScale();
+					cam.SetParallelProjection(0);
 					
+					Vector3d focal = new Vector3d(panel.getRenderer().GetActiveCamera().GetFocalPoint());
+                    Vector3d pos = new Vector3d(panel.getRenderer().GetActiveCamera().GetPosition());
+                    Vector3d dir = new Vector3d(pos);
+                    dir.sub(focal);
+                    dir.normalize();
+                    dir.scale(scale*4.0);
+                    dir.add(focal);
+                    cam.SetPosition(dir.x, dir.y, dir.z);
+					ren.ResetCameraClippingRange();
+
 				}
-//				panel.UpdateLight();
 				panel.refresh();
 
 			}
-		 });
-	    
-	     return null;
-	     
+		});
+
+		return null;
+
 	}