Diagram element calculateScaleRecip should never return 0

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

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 2cc0ee96ae4ffa89ad97b696c3661944f13146bc..182176d2706e41f67120567e035e9323ed90b435 100644 (file)
--- 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
@@ -49,6 +49,8 @@ public class DistrictNetworkNodeUtils {
 
     public static double calculateScaleRecip(AffineTransform tr) {
         int zoomLevel = MapScalingTransform.zoomLevel(tr);
+        if (zoomLevel == 0)
+            zoomLevel = 1;
         return 1.0 / (getScale(tr) * Math.sqrt(zoomLevel));
     }
 
@@ -99,8 +101,8 @@ public class DistrictNetworkNodeUtils {
             return 1;
         }
 
-        int longest = 1;
-        double distance = 0.0;
+        int longest = 2;
+        double distance = -Double.MAX_VALUE;
         for (int i = 2; i < segCount; i += 2) {
             double dx = segments.getQuick(i) - segments.getQuick(i-2);
             double dy = segments.getQuick(i+1) - segments.getQuick(i-1);