From 97861fe55db813365768e4ab2d53f2f5908c1486 Mon Sep 17 00:00:00 2001
From: adam <adam@megacz.com>
Date: Wed, 5 Dec 2007 00:43:21 -0800
Subject: [PATCH] checkpoint

darcs-hash:20071205084321-5007d-e8d74ab2a56d55e4c258cbaf93a655d50b53c464.gz
---
 src/edu/berkeley/qfat/Main.java |   23 +++++++-------
 src/edu/berkeley/qfat/Mesh.java |   65 +++++++++++++++++++++------------------
 2 files changed, 47 insertions(+), 41 deletions(-)

diff --git a/src/edu/berkeley/qfat/Main.java b/src/edu/berkeley/qfat/Main.java
index d8896c2..bb5dd11 100644
--- a/src/edu/berkeley/qfat/Main.java
+++ b/src/edu/berkeley/qfat/Main.java
@@ -12,6 +12,8 @@ import edu.berkeley.qfat.geom.Point;
 
 public class Main extends MeshViewer {
 
+    public static int verts = 0;
+
     public static final Random random = new Random();
     
     /** magnification factor */
@@ -127,23 +129,23 @@ public class Main extends MeshViewer {
                     if ((t1.v1().p.times(m).minus(t2.v1().p).mag() < Mesh.EPSILON) &&
                         (t1.v2().p.times(m).minus(t2.v3().p).mag() < Mesh.EPSILON) &&
                         (t1.v3().p.times(m).minus(t2.v2().p).mag() < Mesh.EPSILON)) {
-                        t1.e1().bind(t2.e3().pair);
-                        t1.e2().bind(t2.e2().pair);
-                        t1.e3().bind(t2.e1().pair);
+                        t1.e1().bindEdge(t2.e3());
+                        t1.e2().bindEdge(t2.e2());
+                        t1.e3().bindEdge(t2.e1());
                     }
                     if ((t1.v2().p.times(m).minus(t2.v1().p).mag() < Mesh.EPSILON) &&
                         (t1.v3().p.times(m).minus(t2.v3().p).mag() < Mesh.EPSILON) &&
                         (t1.v1().p.times(m).minus(t2.v2().p).mag() < Mesh.EPSILON)) {
-                        t1.e2().bind(t2.e3().pair);
-                        t1.e3().bind(t2.e2().pair);
-                        t1.e1().bind(t2.e1().pair);
+                        t1.e2().bindEdge(t2.e3());
+                        t1.e3().bindEdge(t2.e2());
+                        t1.e1().bindEdge(t2.e1());
                     }
                     if ((t1.v3().p.times(m).minus(t2.v1().p).mag() < Mesh.EPSILON) &&
                         (t1.v1().p.times(m).minus(t2.v3().p).mag() < Mesh.EPSILON) &&
                         (t1.v2().p.times(m).minus(t2.v2().p).mag() < Mesh.EPSILON)) {
-                        t1.e3().bind(t2.e3().pair);
-                        t1.e1().bind(t2.e2().pair);
-                        t1.e2().bind(t2.e1().pair);
+                        t1.e3().bindEdge(t2.e3());
+                        t1.e1().bindEdge(t2.e2());
+                        t1.e2().bindEdge(t2.e1());
                     }
                 }
             }
@@ -220,8 +222,6 @@ public class Main extends MeshViewer {
         }
     }
 
-    public static int verts = 0;
-
     public void anneal() throws Exception {
         int verts = 0;
         while(true) {
@@ -249,4 +249,5 @@ public class Main extends MeshViewer {
         Main main = new Main(stlf, f);
         main.anneal();
     }
+
 }
\ No newline at end of file
diff --git a/src/edu/berkeley/qfat/Mesh.java b/src/edu/berkeley/qfat/Mesh.java
index f4f0837..3a0d72c 100644
--- a/src/edu/berkeley/qfat/Mesh.java
+++ b/src/edu/berkeley/qfat/Mesh.java
@@ -116,25 +116,6 @@ public class Mesh implements Iterable<Mesh.T> {
         return (float)total;
     }
 
-    public class BindingGroup {
-        public HashSet<E> es = new HashSet<E>();
-        public BindingGroup() { }
-        public BindingGroup(E e) {
-            es.add(e);
-        }
-        public void add(E e) {
-            if (e.bg != null) { merge(e.bg); return; }
-            es.add(e);
-            e.bg = this;
-        }
-        public void merge(BindingGroup bg) {
-            for(E e : bg.es) {
-                e.bg = null;
-                add(e);
-            }
-        }
-    }
-
     public void rebuildPointSet() { pointset.rebuild(); }
     public Vec diagonal() { return pointset.diagonal(); }
     public Point centroid() { return pointset.centroid(); }
@@ -337,6 +318,37 @@ public class Mesh implements Iterable<Mesh.T> {
         }
     }
 
+    public class BindingGroup {
+        private HashSet<E> ess = new HashSet<E>();
+        public BindingGroup() { }
+        public BindingGroup(E e) {
+            ess.add(e);
+        }
+        public void add(E e) {
+            if (e.bg != null) { merge(e.bg); return; }
+            ess.add(e);
+            e.bg = this;
+        }
+        public void merge(BindingGroup bg) {
+            for(E e : bg.ess) {
+                e.bg = null;
+                add(e);
+            }
+        }
+        public void dobind(E e) {
+            for(E ex : ess) {
+                if (ex==e) continue;
+                e.p1.bind(ex.p1);
+                e.p2.bind(ex.p2);
+            }
+        }
+        public void shatter(BindingGroup bg1, BindingGroup bg2) {
+            for(E e : ess) {
+                e.shatter(e.midpoint(), bg1, bg2);
+            }
+        }
+    }
+
     /** [UNIQUE] an edge */
     public final class E implements Comparable<E> {
 
@@ -350,17 +362,10 @@ public class Mesh implements Iterable<Mesh.T> {
 
         public int compareTo(E e) { return e.length() > length() ? 1 : -1; }
 
-        public void bind(E e) { bind(e, new Matrix()); }
-        public void bind(E e, Matrix m) { e.bg.add(this); }
-
-        public void dobind() {
-            if (bg==null) return;
-            for(E ex : bg.es) {
-                if (ex==this) continue;
-                p1.bind(ex.p1);
-                p2.bind(ex.p2);
-            }
+        public void bindEdge(E e) {
+            e.pair.bg.add(this);
         }
+        public void dobind() { if (bg != null) bg.dobind(this); }
 
         public Point shatter() { return shatter(midpoint(), null, null); }
         public Point shatter(Point mid, BindingGroup bg1, BindingGroup bg2) {
@@ -373,7 +378,7 @@ public class Mesh implements Iterable<Mesh.T> {
 
             if (bg1==null) bg1 = new BindingGroup();
             if (bg2==null) bg2 = new BindingGroup();
-            for(E e : bg.es) e.shatter(e.midpoint(), bg1, bg2);
+            bg.shatter(bg1, bg2);
             pair.shatter();
             destroy();
 
-- 
1.7.10.4