X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=org.simantics.district.network.ui%2Fsrc%2Forg%2Fsimantics%2Fdistrict%2Fnetwork%2Fui%2Fnodes%2FDistrictNetworkNodeUtils.java;h=0efab43173f112d4521667f4af00919434c3f7d2;hb=6f8ba9e7f5c9d07c11f495d2f88f17dae4d6705f;hp=8a369e26391d9efb77e458891824617f9a9c9231;hpb=8364294edf86a6915ae3fe7eade555d95fd7e435;p=simantics%2Fdistrict.git

diff --git a/org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/DistrictNetworkNodeUtils.java b/org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/DistrictNetworkNodeUtils.java
index 8a369e26..0efab431 100644
--- a/org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/DistrictNetworkNodeUtils.java
+++ b/org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/DistrictNetworkNodeUtils.java
@@ -5,9 +5,17 @@ import java.awt.geom.Point2D;
 import java.awt.geom.Rectangle2D;
 
 import org.simantics.district.network.ModelledCRS;
+import org.simantics.maps.MapScalingTransform;
+import org.simantics.scenegraph.utils.GeometryUtils;
 
 public class DistrictNetworkNodeUtils {
 
+    public static ThreadLocal<AffineTransform> sharedTransform = new ThreadLocal<AffineTransform>() {
+        protected AffineTransform initialValue() {
+            return new AffineTransform();
+        }
+    };
+
     public static Rectangle2D calculateDrawnGeometry(Point2D p, Rectangle2D margin, Rectangle2D result, double scaleRecip) {
         if (result == null)
             result = new Rectangle2D.Double();
@@ -35,4 +43,15 @@ public class DistrictNetworkNodeUtils {
         return transform;
     }
 
+    public static double calculateScaleRecip(AffineTransform tr) {
+        int zoomLevel = MapScalingTransform.zoomLevel(tr);
+        return 1.0 / (getScale(tr) * Math.sqrt(zoomLevel));
+    }
+
+    static double getScale(AffineTransform tr) {
+        double scale;
+        scale = GeometryUtils.getScale(tr);
+        scale = Math.max(4096, scale); //Math.min(scale, 32768));
+        return scale;
+    }
 }