From: megacz <adam@megacz.com>
Date: Sat, 28 Feb 2009 23:09:57 +0000 (-0800)
Subject: Mesh.java: better error for zero-length edges, and add numTriangles() method
X-Git-Url: http://git.megacz.com/?p=anneal.git;a=commitdiff_plain;h=dd479b0a27de3f6c209d07a899695561e0da9517

Mesh.java: better error for zero-length edges, and add numTriangles() method
---

diff --git a/src/edu/berkeley/qfat/Mesh.java b/src/edu/berkeley/qfat/Mesh.java
index 31e0590..1a96e7d 100644
--- a/src/edu/berkeley/qfat/Mesh.java
+++ b/src/edu/berkeley/qfat/Mesh.java
@@ -85,6 +85,7 @@ public class Mesh implements Iterable<Mesh.T> {
     public float error() { return (float)error; }
 
     public int size() { return vertices.size(); }
+    public int numTriangles() { return triangles.size(); }
     public Iterable<Vertex> vertices() { return vertices; }
     public Iterator<T> iterator() { return triangles.iterator(); }
 
@@ -898,6 +899,7 @@ public class Mesh implements Iterable<Mesh.T> {
         public E(Point v1, Point v2) {
             if (vertices.get(v1) != null) throw new Error();
             if (vertices.get(v2) != null) throw new Error();
+            if (v1.equals(v2)) throw new Error("attempt to create a zero-length edge!");
             this.v1 = new Vertex(v1);
             this.v2 = new Vertex(v2);
             this.prev = this.next = this.pair = new E(this, this, this);