1 package edu.berkeley.qfat;
3 import java.awt.event.*;
5 import javax.media.opengl.*;
6 import javax.media.opengl.glu.*;
8 import edu.berkeley.qfat.geom.*;
9 import edu.berkeley.qfat.geom.Point;
13 // - solve self-intersection problem
14 // - get a better test model?
16 // FIXME: re-orient goal (how?)
18 public class Main extends MeshViewer {
20 public static int verts = 0;
22 public static final Random random = new Random();
24 /** magnification factor */
25 private static final float MAG = 1;
27 public Main(StlFile stlf, Frame f) {
30 for(int i=0; i<stlf.coordArray.length; i+=3) {
31 Point p0 = new Point(stlf.coordArray[i+0].x * MAG, stlf.coordArray[i+0].y * MAG, stlf.coordArray[i+0].z * MAG);
32 Point p1 = new Point(stlf.coordArray[i+1].x * MAG, stlf.coordArray[i+1].y * MAG, stlf.coordArray[i+1].z * MAG);
33 Point p2 = new Point(stlf.coordArray[i+2].x * MAG, stlf.coordArray[i+2].y * MAG, stlf.coordArray[i+2].z * MAG);
34 Vec n = new Vec(stlf.normArray[i/3].x * MAG, stlf.normArray[i/3].y * MAG, stlf.normArray[i/3].z * MAG);
35 Mesh.T t = goal.newT(p0, p1, p2, n, 0);
38 // rotate to align major axis -- this probably needs to be done by a human.
39 goal.transform(new Matrix(new Vec(0, 0, 1), (float)(Math.PI/2)));
41 float goal_width = goal.diagonal().dot(new Vec(1, 0, 0));
42 float goal_height = goal.diagonal().dot(new Vec(0, 1, 0));
43 float goal_depth = goal.diagonal().dot(new Vec(0, 0, 1));
46 float width = (float)0.6;
47 float height = (float)0.08;
48 float depth = (float)0.3;
50 float width = (float)0.6;
51 float depth = (float)0.08;
52 float height = (float)0.3;
54 float rshift = width/2;
55 float lshift = -(width/2);
57 translations = new Matrix[] {
59 new Matrix(new Vec(lshift, depth, 0)),
60 new Matrix(new Vec(rshift, depth, 0)),
61 new Matrix(new Vec(lshift, -depth, 0)),
62 new Matrix(new Vec(rshift, -depth, 0)),
63 new Matrix(new Vec(lshift, 0, height)),
64 new Matrix(new Vec(rshift, 0, height)),
65 new Matrix(new Vec(lshift, 0, -height)),
66 new Matrix(new Vec(rshift, 0, -height)),
68 new Matrix(new Vec( width, 0, 0)),
69 new Matrix(new Vec(-width, 0, 0)),
71 new Matrix(new Vec( 0, 0, height)),
72 new Matrix(new Vec( 0, 0, -height)),
76 Point ltf = new Point(lshift, (depth/2), (height/2));
77 Point mtf = new Point( 0.0, (depth/2), (height/2));
78 Point rtf = new Point(rshift, (depth/2), (height/2));
79 Point ltn = new Point(lshift, (depth/2), -(height/2));
80 Point mtn = new Point( 0.0, (depth/2), -(height/2));
81 Point rtn = new Point(rshift, (depth/2), -(height/2));
82 Point lbf = new Point(lshift, -(depth/2), (height/2));
83 Point mbf = new Point( 0.0, -(depth/2), (height/2));
84 Point rbf = new Point(rshift, -(depth/2), (height/2));
85 Point lbn = new Point(lshift, -(depth/2), -(height/2));
86 Point mbn = new Point( 0.0, -(depth/2), -(height/2));
87 Point rbn = new Point(rshift, -(depth/2), -(height/2));
89 Point[] points = new Point[] {
106 tile.newT(ltf, mtf, mtn, null, 1);
107 tile.newT(mtn, ltn, ltf, null, 1);
108 tile.newT(mtf, rtf, rtn, null, 1);
109 tile.newT(rtn, mtn, mtf, null, 1);
111 // bottom (swap normals)
112 tile.newT(mbf, lbf, mbn, null, 2);
113 tile.newT(lbn, mbn, lbf, null, 2);
114 tile.newT(rbf, mbf, rbn, null, 2);
115 tile.newT(mbn, rbn, mbf, null, 2);
118 tile.newT(ltf, ltn, lbn, null, 3);
119 tile.newT(lbn, lbf, ltf, null, 3);
121 // right (swap normals)
122 tile.newT(rtn, rtf, rbn, null, 4);
123 tile.newT(rbf, rbn, rtf, null, 4);
126 tile.newT(ltn, mtn, mbn, null, 5);
127 tile.newT(ltn, mbn, lbn, null, 5);
128 tile.newT(mtn, rtn, rbn, null, 5);
129 tile.newT(mtn, rbn, mbn, null, 5);
132 tile.newT(mtf, ltf, mbf, null, 6);
133 tile.newT(mbf, ltf, lbf, null, 6);
134 tile.newT(rtf, mtf, rbf, null, 6);
135 tile.newT(rbf, mtf, mbf, null, 6);
137 for(Matrix m : translations) {
138 for(Mesh.T t1 : tile) {
139 for(Mesh.T t2 : tile) {
140 if (t1==t2) continue;
142 if ((t1.v1().p.times(m).minus(t2.v1().p).mag() < Mesh.EPSILON) &&
143 (t1.v2().p.times(m).minus(t2.v3().p).mag() < Mesh.EPSILON) &&
144 (t1.v3().p.times(m).minus(t2.v2().p).mag() < Mesh.EPSILON)) {
145 t1.e1().bindEdge(t2.e3());
146 t1.e2().bindEdge(t2.e2());
147 t1.e3().bindEdge(t2.e1());
149 if ((t1.v2().p.times(m).minus(t2.v1().p).mag() < Mesh.EPSILON) &&
150 (t1.v3().p.times(m).minus(t2.v3().p).mag() < Mesh.EPSILON) &&
151 (t1.v1().p.times(m).minus(t2.v2().p).mag() < Mesh.EPSILON)) {
152 t1.e2().bindEdge(t2.e3());
153 t1.e3().bindEdge(t2.e2());
154 t1.e1().bindEdge(t2.e1());
156 if ((t1.v3().p.times(m).minus(t2.v1().p).mag() < Mesh.EPSILON) &&
157 (t1.v1().p.times(m).minus(t2.v3().p).mag() < Mesh.EPSILON) &&
158 (t1.v2().p.times(m).minus(t2.v2().p).mag() < Mesh.EPSILON)) {
159 t1.e3().bindEdge(t2.e3());
160 t1.e1().bindEdge(t2.e2());
161 t1.e2().bindEdge(t2.e1());
167 //xMesh.Vert mid = lbf.getE(mbn).shatter();
169 // rescale to match volume
170 float factor = (float)Math.pow(tile.volume() / goal.volume(), 1.0/3.0);
171 goal.transform(new Matrix(factor));
173 // translate to match centroid
174 goal.transform(new Matrix(tile.centroid().minus(goal.centroid())));
182 //mid.move(new Vec((float)0,0,(float)-0.05));
183 //ltn.move(new Vec((float)0,0,(float)-0.05));
185 //mtf.move(new Vec(0, (float)-0.05, (float)0.05));
188 System.out.println("tile volume: " + tile.volume());
189 System.out.println("goal volume: " + goal.volume());
191 tile.score_against = goal;
192 goal.score_against = tile;
195 public synchronized void breakit() {
196 if (verts > 800) return;
197 //while(verts < 800) {
198 PriorityQueue<Mesh.E> es = new PriorityQueue<Mesh.E>();
199 for(Mesh.E e : tile.edges()) es.add(e);
200 for(int i=0; i<40; i++) {
201 Mesh.E e = es.poll();
203 //System.out.println("shatter " + e);
210 public synchronized void rand(double temperature, Mesh.Vert p) {
211 double tile_score = tile.score();
212 double goal_score = goal.score();
216 Vec v = new Vec((random.nextFloat() - (float)0.5) / 1000,
217 (random.nextFloat() - (float)0.5) / 1000,
218 (random.nextFloat() - (float)0.5) / 1000);
220 Matrix inv = p.errorQuadric();
221 Vec v = new Vec(inv.d, inv.h, inv.l).norm().times(1/(float)1000);
223 boolean good = p.move(v);
224 double new_tile_score = tile.score();
225 double new_goal_score = goal.score();
226 double tile_delta = new_tile_score - tile_score;
227 double goal_delta = 0;//new_goal_score - goal_score;
228 double delta = tile_delta + goal_delta;
229 //double swapProbability = Math.exp((-1 * delta) / temperature);
230 //boolean doSwap = Math.random() < swapProbability;
231 boolean doSwap = good && (tile_delta <= 0 && goal_delta <= 0);
233 tile_score = new_tile_score;
234 goal_score = new_goal_score;
235 //System.out.println("score: " + tile_score + " / " + goal_score);
241 public void anneal() throws Exception {
244 HashSet<Mesh.Vert> hs = new HashSet<Mesh.Vert>();
245 for(Mesh.Vert p : tile.vertices()) hs.add(p);
246 for(int i=0; i<10; i++) {
248 for(Mesh.Vert v : hs) rand(10,v);
250 tile.rebuildPointSet();
254 goal.unApplyQuadricToNeighborAll();
256 tile.recomputeAllFundamentalQuadrics();
258 goal.applyQuadricToNeighborAll();
262 public static void main(String[] s) throws Exception {
263 StlFile stlf = new StlFile();
264 stlf.load("simplefish.stl");
265 Frame f = new Frame();
266 Main main = new Main(stlf, f);