X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=org.simantics.g3d%2Fsrc%2Forg%2Fsimantics%2Fg3d%2Fshape%2FTube.java;h=a3c9dd192f085d201a76c6c9536074bb0cb3e422;hb=HEAD;hp=0300f068b601711001d5413e1fee21dd05a00902;hpb=a8667c284ad9c713461f452543423188db712fe3;p=simantics%2F3d.git

diff --git a/org.simantics.g3d/src/org/simantics/g3d/shape/Tube.java b/org.simantics.g3d/src/org/simantics/g3d/shape/Tube.java
index 0300f068..a3c9dd19 100644
--- a/org.simantics.g3d/src/org/simantics/g3d/shape/Tube.java
+++ b/org.simantics.g3d/src/org/simantics/g3d/shape/Tube.java
@@ -69,11 +69,13 @@ public class Tube {
 		
 		Vector3d t = new Vector3d();
 		
-		for (int i = 0; i < vertices.size() - 1; i++) {
-			t.set(vertices.get(i+1));
-			t.sub(vertices.get(i));
-			if (t.lengthSquared() < 0.000001)
-				throw new IllegalArgumentException("vertices at index " + i + " are too close to each other");
+		if (tangents == null) {
+    		for (int i = 0; i < vertices.size() - 1; i++) {
+    			t.set(vertices.get(i+1));
+    			t.sub(vertices.get(i));
+    			if (t.lengthSquared() < 0.0000001)
+    				throw new IllegalArgumentException("vertices at index " + i + " are too close to each other");
+    		}
 		}
 		
 		int vcount = vertices.size()*resolution;
@@ -194,9 +196,9 @@ public class Tube {
 				int iv = c*resolution + s;
 				
 				/*
-			     iv+1 ---- iv + resolution + 1
-				      | /|
-				      |/ |
+				 iv+1 ---- iv + resolution + 1
+					  | /|
+					  |/ |
 				   iv ---- iv + resolution 
 				*/
 				if (s < resolution - 1) {