X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=org.simantics.plant3d%2Fsrc%2Forg%2Fsimantics%2Fplant3d%2Fgeometry%2FHorizontalTankGeometryProvider.java;h=1b68ce75def643197799803e360af542fa69bb39;hb=31fd8b586a816e12d85f361b3fe2f6ebd52e427b;hp=c6d4201597ad9e8c74e9b8af5fd83a9d57ae3a5c;hpb=6c85a1331df92384baa03b3968ea6f06459a04ab;p=simantics%2F3d.git

diff --git a/org.simantics.plant3d/src/org/simantics/plant3d/geometry/HorizontalTankGeometryProvider.java b/org.simantics.plant3d/src/org/simantics/plant3d/geometry/HorizontalTankGeometryProvider.java
index c6d42015..1b68ce75 100644
--- a/org.simantics.plant3d/src/org/simantics/plant3d/geometry/HorizontalTankGeometryProvider.java
+++ b/org.simantics.plant3d/src/org/simantics/plant3d/geometry/HorizontalTankGeometryProvider.java
@@ -15,6 +15,7 @@ import org.jcae.opencascade.jni.TopoDS_Face;
 import org.jcae.opencascade.jni.TopoDS_Shape;
 import org.jcae.opencascade.jni.TopoDS_Wire;
 import org.simantics.db.Resource;
+import org.simantics.g3d.math.MathTools;
 import org.simantics.opencascade.OccTriangulator;
 
 public class HorizontalTankGeometryProvider extends BuiltinGeometryProvider  {
@@ -28,7 +29,8 @@ public class HorizontalTankGeometryProvider extends BuiltinGeometryProvider  {
 	
 	@Override
 	public Collection<TopoDS_Shape> getModel() throws Exception {
-		
+		if (radius < MathTools.NEAR_ZERO || length < MathTools.NEAR_ZERO)
+			return Collections.emptyList();
 		double p0[] = new double[]{ length*0.50,        0.0,0.0};
 		double p1[] = new double[]{ length*0.488, radius*0.6,0.0};
 		double p2[] = new double[]{ length*0.46,     radius,0.0};