Optimization of district scene graph node rendering

[simantics/district.git] / org.simantics.district.network.ui / src / org / simantics / district / network / ui / DistrictDiagramViewer.java

diff --git a/org.simantics.district.network.ui/src/org/simantics/district/network/ui/DistrictDiagramViewer.java b/org.simantics.district.network.ui/src/org/simantics/district/network/ui/DistrictDiagramViewer.java
index c27b090db092f240f2bc3d0e43b0f4f5a3a0aaac..d0b1a8a1ac9d6a1e5dd73848815d74c17d72c523 100644 (file)
--- a/org.simantics.district.network.ui/src/org/simantics/district/network/ui/DistrictDiagramViewer.java
+++ b/org.simantics.district.network.ui/src/org/simantics/district/network/ui/DistrictDiagramViewer.java
@@ -19,6 +19,7 @@ import org.simantics.db.procedure.Listener;
 import org.simantics.diagram.ui.DiagramModelHints;
 import org.simantics.district.network.DistrictNetworkUtil;
 import org.simantics.district.network.ontology.DistrictNetworkResource;
+import org.simantics.district.network.ui.nodes.DistrictRenderingPreparationNode;
 import org.simantics.district.network.ui.participants.DNPointerInteractor;
 import org.simantics.district.network.ui.participants.DynamicVisualisationContributionsParticipant;
 import org.simantics.district.network.ui.participants.ElevationServerParticipant;
@@ -41,10 +42,12 @@ import org.simantics.g2d.participant.PanZoomRotateHandler;
 import org.simantics.g2d.participant.RenderingQualityInteractor;
 import org.simantics.g2d.participant.TransformUtil;
 import org.simantics.g2d.participant.ZoomToAreaHandler;
+import org.simantics.g2d.scenegraph.SceneGraphConstants;
 import org.simantics.maps.MapScalingTransform;
 import org.simantics.maps.eclipse.MapPainter;
 import org.simantics.maps.sg.commands.MapCommands;
 import org.simantics.modeling.ui.diagramEditor.DiagramViewer;
+import org.simantics.scenegraph.g2d.G2DParentNode;
 import org.simantics.scenegraph.g2d.events.command.Command;
 import org.simantics.scenegraph.g2d.events.command.CommandEvent;
 import org.simantics.scenegraph.g2d.events.command.Commands;
@@ -71,6 +74,12 @@ public class DistrictDiagramViewer extends DiagramViewer {
         ctx.add(new NetworkDrawingParticipant(tr));
         ctx.add(new ElevationServerParticipant(tr));
         ctx.add(new DynamicVisualisationContributionsParticipant(tr));
+        
+        // Optimize AffineTransform memory allocations during district diagram rendering
+        G2DParentNode spatialRoot = (G2DParentNode) ctx.getSceneGraph().lookupNode(SceneGraphConstants.SPATIAL_ROOT_NODE_ID);
+        DistrictRenderingPreparationNode prepNode = new DistrictRenderingPreparationNode();
+        prepNode.setZIndex(Integer.MIN_VALUE / 2);
+        spatialRoot.addNode("districtRenderingPrepareNode", prepNode);
     }
     
     protected String getPopupId() {