From 0aee90946946191cf3a8d476f4c7c3dd7bd6265e Mon Sep 17 00:00:00 2001
From: kintel <kintel@b57f626f-c46c-0410-a088-ec61d464b74c>
Date: Tue, 15 Jun 2010 22:46:12 +0000
Subject: Added crash testcase for crash reported by Dan Zuras

git-svn-id: http://svn.clifford.at/openscad/trunk@559 b57f626f-c46c-0410-a088-ec61d464b74c

diff --git a/testdata/scad/polyset-reduce-crash.scad b/testdata/scad/polyset-reduce-crash.scad
new file mode 100644
index 0000000..ce9fae7
--- /dev/null
+++ b/testdata/scad/polyset-reduce-crash.scad
@@ -0,0 +1,38 @@
+N=20;
+
+rotate (a = [0, 0, 36]) {
+  union() {
+    translate ([1, 0]) {
+	polygon (points = [[(N - 1)*cos(180/N), -(N - 1)*sin(180/N)],
+			   [(N - 3)*cos(270/N), -(N - 3)*sin(270/N)],
+			   [(N - 1)*cos(270/N), -(N - 1)*sin(270/N)]]);
+
+	polygon (points = [[(N - 1)*cos(180/N), -(N - 1)*sin(180/N)],
+			   [(N - 3)*cos(180/N), -(N - 3)*sin(180/N)],
+			   [(N - 3)*cos(270/N), -(N - 3)*sin(270/N)]]);
+
+	polygon (points = [[N - 1, 0], [N - 3, 0],
+			   [(N - 3)*cos(180/N), -(N - 3)*sin(180/N)]]);
+
+	polygon (points = [[N - 1, 0],
+			[(N - 3)*cos(180/N), -(N - 3)*sin(180/N)],
+			[(N - 1)*cos(180/N), -(N - 1)*sin(180/N)]]);
+
+	polygon (points = [[N - 1, 0], [N - 3, 0],
+			  [(N - 3)*cos(180/N), (N - 3)*sin(180/N)]]);
+
+	polygon (points = [[N - 1, 0],
+			  [(N - 3)*cos(180/N), (N - 3)*sin(180/N)],
+			  [(N - 1)*cos(180/N), (N - 1)*sin(180/N)]]);
+
+	polygon (points = [[(N - 1)*cos(180/N), (N - 1)*sin(180/N)],
+			   [(N - 3)*cos(180/N), (N - 3)*sin(180/N)],
+			   [(N - 3)*cos(270/N), (N - 3)*sin(270/N)]]);
+
+	polygon (points = [[(N - 1)*cos(180/N), (N - 1)*sin(180/N)],
+			   [(N - 3)*cos(270/N), (N - 3)*sin(270/N)],
+			   [(N - 1)*cos(270/N), (N - 1)*sin(270/N)]]);
+    }
+    circle (r = 20);
+  }
+}
diff --git a/testdata/scad/polyset-reduce-crash.txt b/testdata/scad/polyset-reduce-crash.txt
new file mode 100644
index 0000000..bc9e8d5
--- /dev/null
+++ b/testdata/scad/polyset-reduce-crash.txt
@@ -0,0 +1,4 @@
+This testcase causes a crash in PolySet::PolyReducer::add_edges().
+It appears to be because we collapse two close vertices into the same
+vertex. This is handled by just abort()'ing.
+
-- 
cgit v0.10.1