package edu.berkeley.qfat;
import java.awt.*;
+import java.io.*;
import java.awt.event.*;
import javax.swing.*;
import javax.media.opengl.*;
import javax.media.opengl.glu.*;
import java.util.*;
+import edu.berkeley.qfat.bind.*;
import edu.berkeley.qfat.geom.*;
+import edu.berkeley.qfat.stl.*;
import edu.berkeley.qfat.geom.Point;
import edu.berkeley.qfat.geom.Polygon;
+/*
+
+
+Todo
+- review catmull-clark; move vertex points?
+- re-anneal fish
+
+- show constraints (?)
+- show in red if user tries to move a point to an illegal location
+
+- eliminate use of bindinggroupschanged()
+
+- post qfat on my software page
+
+
+With Sequin
+- constraints admit intersections (lattice)
+- constraints may be transformed linearly
+
+
+
+
+Log console
+ - blend-shaded overlay? slick.
+
+face/vertex count
+rendering FPS
+ability to not draw edges between faces
+
+
+three circumcircles showing crystal ball -- these don't get scaled
+axes?
+
+drawing modes:
+ - bounding box
+ - vertices
+ - edges
+ - visible-edges
+ - flat with or without edges
+ - shaded with or without edges
+ * contrasting-faces
+
+
+quadric decimation?
+
+show normals
+show bounding box
+show axes (big+fat)
+ */
+
// TO DO:
-// - real anneal
-// - solve self-intersection problem
-// - get a better test model?
-// - symmetry constraints withing the tile
-// - rotation matrices
-// - overbinding results in forced equational constraints on the leader
-// - shatter in invertd-triforce pattern brian mentioned
-// - aspect ratio? non-uniform deformation?
-// - rotational alignment
-
-// - movie-style user interface like
-// http://www.coleran.com/markcoleranreell.html ?
-
-// - consider recasting the Shewchuk predicates in Java?
-// http://www.cs.cmu.edu/afs/cs/project/quake/public/code/predicates.c
+//
+// - Ability to snap three views to orthgonal
+// - SLIDE UI
+// - left button -> crystal ball
+// - translate
+// - rightbutton/mousewheel zoom
+// - v+click to select vertex
+// - show: constraints, bindings, faces
+//
+// Editing:
+// - fracture edge, face
+// - change aspect ratio
+// - translate, rotate goal mesh
+// - ability to select a point, rotate the model, then move the point
+// - when moving a vertex in one window, show that window's axes in all other windows
+//
/*
blender keys
wheel: zoom
home: home view: take current angle, zoom to whole scnee
5 = ortho vs non-ortho
-
*/
/*
+Meshlab Notes:
+Log console
+ - blend-shaded overlay? slick.
+face/vertex count
+rendering FPS
+ability to not draw edges between faces
- */
+three circumcircles showing crystal ball -- these don't get scaled
+axes?
+
+drawing modes:
+ - bounding box
+ - vertices
+ - edges
+ - visible-edges
+ - flat with or without edges
+ - shaded with or without edges
+ * contrasting-faces
-// FIXME: re-orient goal (how?)
-public class Main extends MeshViewer {
+quadric decimation?
+
+show normals
+show bounding box
+show axes (big+fat)
+ */
+
+public class Main extends InteractiveMeshViewer {
public static int verts = 1;
HashSet<HalfSpace> halfSpaces = new HashSet<HalfSpace>();
HashSet<Polygon> polygons = new HashSet<Polygon>();
for(Matrix m : matrices) {
- Vec v = m.getTranslationalComponent();
- if (v.mag() < 0.0001) continue;
- v = v.times(0.5f);
- Point p = Point.ORIGIN.plus(v);
- Vec v0 = v;
- if (v.dot(Point.ORIGIN.minus(p)) < 0) v = v.times(-1);
-
- System.out.println(v);
- HalfSpace hs = new HalfSpace(p, v.norm());
- halfSpaces.add(hs);
- polygons.add(new Polygon(hs));
+ Vec v = m.getTranslationalComponent();
+ if (v.mag() < 0.0001) continue;
+ v = v.times(-1);
+ v = v.times(0.5f);
+ Point p = Point.ZERO.plus(v);
+ v = v.times(-1);
+
+ //System.out.println(v);
+ HalfSpace hs = new HalfSpace(p, v.norm());
+ halfSpaces.add(hs);
+ polygons.add(new Polygon(hs));
}
for(Polygon p : polygons) {
- System.out.println(p.plane.norm + " " + p.plane.dvalue);
+ System.out.println(p.plane.norm() + " " + p.plane.d);
for(HalfSpace hs : halfSpaces) {
if (p.plane==hs) continue;
p = p.intersect(hs);
public void loadGoal(String file) {
try {
StlFile stlf = new StlFile();
- stlf.load(file);
- goal = new Mesh(false);
+ InputStream res = this.getClass().getClassLoader().getResourceAsStream(file);
+ stlf.readBinaryFile(file, res);
+ setGoal(new Mesh(false));
for(int i=0; i<stlf.coordArray.length; i+=3) {
Point p0 = new Point(stlf.coordArray[i+0].x * MAG, stlf.coordArray[i+0].y * MAG, stlf.coordArray[i+0].z * MAG);
Point p1 = new Point(stlf.coordArray[i+1].x * MAG, stlf.coordArray[i+1].y * MAG, stlf.coordArray[i+1].z * MAG);
Point p2 = new Point(stlf.coordArray[i+2].x * MAG, stlf.coordArray[i+2].y * MAG, stlf.coordArray[i+2].z * MAG);
- Vec n = new Vec(stlf.normArray[i/3].x * MAG, stlf.normArray[i/3].y * MAG, stlf.normArray[i/3].z * MAG);
+ Vec n = new Vec(stlf.normArray[i/3].x * MAG, stlf.normArray[i/3].y * MAG, stlf.normArray[i/3].z * MAG);
Mesh.T t = goal.newT(p0, p1, p2, n, 0);
}
float goal_width = goal.diagonal().dot(new Vec(1, 0, 0));
} catch (Exception e) { throw new RuntimeException(e);}
}
- public void fixupGoal() {
+ public void fixupGoal() { fixupGoal(true, true); }
+ public void fixupGoal(boolean recenter, boolean lock) {
// translate to match centroid
- goal.transform(Matrix.translate(tile.centroid().minus(goal.centroid())));
- goal.makeVerticesImmutable();
- tile.error_against = goal;
- goal.error_against = tile;
+ if (recenter)
+ goal.transform(Matrix.translate(tile.centroid().minus(goal.centroid())));
+ if (lock) {
+ goal.makeVerticesImmutable();
+ tile.error_against = goal;
+ goal.error_against = tile;
+ }
}
public Main(JFrame f) { super(f); }
- public void fixupTile() {
- synchronized(safeTriangles) {
+ public synchronized void fixupTile() {
for(Matrix m1 : transforms) {
for(Matrix m2 : transforms) {
if (m1==m2) continue;
for(Mesh.T t2 : tile) {
Matrix m = m1.inverse().times(m2);
- if ((t1.v1().p.times(m).distance(t2.v1().p) < MATCHING_EPSILON) &&
- (t1.v2().p.times(m).distance(t2.v3().p) < MATCHING_EPSILON) &&
- (t1.v3().p.times(m).distance(t2.v2().p) < MATCHING_EPSILON)) {
- t2.e3().bindEdge(t1.e1(), m);
- t2.e2().bindEdge(t1.e2(), m);
- t2.e1().bindEdge(t1.e3(), m);
- }
- if ((t1.v2().p.times(m).distance(t2.v1().p) < MATCHING_EPSILON) &&
- (t1.v3().p.times(m).distance(t2.v3().p) < MATCHING_EPSILON) &&
- (t1.v1().p.times(m).distance(t2.v2().p) < MATCHING_EPSILON)) {
- t2.e3().bindEdge(t1.e2(), m);
- t2.e2().bindEdge(t1.e3(), m);
- t2.e1().bindEdge(t1.e1(), m);
- }
- if ((t1.v3().p.times(m).distance(t2.v1().p) < MATCHING_EPSILON) &&
- (t1.v1().p.times(m).distance(t2.v3().p) < MATCHING_EPSILON) &&
- (t1.v2().p.times(m).distance(t2.v2().p) < MATCHING_EPSILON)) {
- t2.e3().bindEdge(t1.e3(), m);
- t2.e2().bindEdge(t1.e1(), m);
- t2.e1().bindEdge(t1.e2(), m);
- }
+ Point t1v1 = m.times(t1.v1().p);
+ Point t1v2 = m.times(t1.v2().p);
+ Point t1v3 = m.times(t1.v3().p);
- if ((t1.v1().p.times(m).distance(t2.v1().p) < MATCHING_EPSILON) &&
- (t1.v2().p.times(m).distance(t2.v2().p) < MATCHING_EPSILON) &&
- (t1.v3().p.times(m).distance(t2.v3().p) < MATCHING_EPSILON)) {
- t2.e1().bindEdge(t1.e1().pair, m);
+ if (t1v1.distance(t2.v1().p) < MATCHING_EPSILON &&
+ t1v2.distance(t2.v3().p) < MATCHING_EPSILON &&
+ t1v3.distance(t2.v2().p) < MATCHING_EPSILON) {
+ t2.e3().bindEdge(t1.e1().pair, m);
t2.e2().bindEdge(t1.e2().pair, m);
- t2.e3().bindEdge(t1.e3().pair, m);
+ t2.e1().bindEdge(t1.e3().pair, m);
}
- if ((t1.v2().p.times(m).distance(t2.v1().p) < MATCHING_EPSILON) &&
- (t1.v3().p.times(m).distance(t2.v2().p) < MATCHING_EPSILON) &&
- (t1.v1().p.times(m).distance(t2.v3().p) < MATCHING_EPSILON)) {
- t2.e2().bindEdge(t1.e1().pair, m);
+ if (t1v2.distance(t2.v1().p) < MATCHING_EPSILON &&
+ t1v3.distance(t2.v3().p) < MATCHING_EPSILON &&
+ t1v1.distance(t2.v2().p) < MATCHING_EPSILON) {
t2.e3().bindEdge(t1.e2().pair, m);
- t2.e1().bindEdge(t1.e3().pair, m);
+ t2.e2().bindEdge(t1.e3().pair, m);
+ t2.e1().bindEdge(t1.e1().pair, m);
}
- if ((t1.v3().p.times(m).distance(t2.v1().p) < MATCHING_EPSILON) &&
- (t1.v1().p.times(m).distance(t2.v2().p) < MATCHING_EPSILON) &&
- (t1.v2().p.times(m).distance(t2.v3().p) < MATCHING_EPSILON)) {
- t2.e3().bindEdge(t1.e1().pair, m);
+ if (t1v3.distance(t2.v1().p) < MATCHING_EPSILON &&
+ t1v1.distance(t2.v3().p) < MATCHING_EPSILON &&
+ t1v2.distance(t2.v2().p) < MATCHING_EPSILON) {
+ t2.e3().bindEdge(t1.e3().pair, m);
+ t2.e2().bindEdge(t1.e1().pair, m);
t2.e1().bindEdge(t1.e2().pair, m);
- t2.e2().bindEdge(t1.e3().pair, m);
+ }
+
+ if (t1v1.distance(t2.v1().p) < MATCHING_EPSILON &&
+ t1v2.distance(t2.v2().p) < MATCHING_EPSILON &&
+ t1v3.distance(t2.v3().p) < MATCHING_EPSILON) {
+ t2.e1().bindEdge(t1.e1(), m);
+ t2.e2().bindEdge(t1.e2(), m);
+ t2.e3().bindEdge(t1.e3(), m);
+ }
+ if (t1v2.distance(t2.v1().p) < MATCHING_EPSILON &&
+ t1v3.distance(t2.v2().p) < MATCHING_EPSILON &&
+ t1v1.distance(t2.v3().p) < MATCHING_EPSILON) {
+ t2.e2().bindEdge(t1.e1(), m);
+ t2.e3().bindEdge(t1.e2(), m);
+ t2.e1().bindEdge(t1.e3(), m);
+ }
+ if (t1v3.distance(t2.v1().p) < MATCHING_EPSILON &&
+ t1v1.distance(t2.v2().p) < MATCHING_EPSILON &&
+ t1v2.distance(t2.v3().p) < MATCHING_EPSILON) {
+ t2.e3().bindEdge(t1.e1(), m);
+ t2.e1().bindEdge(t1.e2(), m);
+ t2.e2().bindEdge(t1.e3(), m);
}
}
tile.error_against = goal;
goal.error_against = tile;
fixupGoal();
- }
- }
-
- public void breakit() {
- int oldverts = verts;
- System.out.println("doubling vertices.");
- PriorityQueue<Mesh.E> es = new PriorityQueue<Mesh.E>();
- for(Mesh.T t : tile) {
- es.add(t.e1());
- es.add(t.e2());
- es.add(t.e3());
- Thread.yield();
- repaint();
- }
- for(int i=0; i<Math.min(oldverts,50); i++) {
- Mesh.E e = es.poll();
- verts++;
- e.shatter();
- Thread.yield();
- repaint();
- }
- tile.rebindPoints();
}
- public boolean rand(double temp, Mesh.Vertex p) {
-
- p.reComputeErrorAround();
- double tile_error = tile.error();
- double goal_error = goal.error();
-
- float max = p.averageEdgeLength()/5;
- Vec v = new Vec(random.nextFloat(), random.nextFloat(), random.nextFloat());
- v = v.norm().times((random.nextFloat() - 0.5f) * max);
- Matrix m = Matrix.translate(v);
-
- boolean good = p.move(m, false);
- if (!good) { return false; }
-
- double new_tile_error = tile.error();
- double new_goal_error = goal.error();
- double tile_delta = (new_tile_error - tile_error) / tile_error;
- double goal_delta = (new_goal_error - goal_error) / goal_error;
- double delta = tile_delta + goal_delta;
- double swapProbability = Math.exp((-1 * delta) / temp);
-
- //boolean doSwap = good && (tile_delta <= 0 && goal_delta <= 0);
- //boolean doSwap = good && (tile_delta + goal_delta <= 0);
- //if (temp < 0.000001) doSwap = good && (tile_delta <= 0 && goal_delta <= 0);
- boolean doSwap = good && (Math.random() < swapProbability);
- if (doSwap) {
- tile_error = new_tile_error;
- goal_error = new_goal_error;
- hits++;
- p.goodp = p.p;
- } else {
- p.move(Matrix.translate(v.times(-1)), true);
- misses++;
- }
- p.reComputeErrorAround();
- return true;
- }
-
- float hits = 0;
- float misses = 0;
- public void anneal() throws Exception {
- double hightemp = 1;
- temp = hightemp;
- double last = 10;
- boolean seek_upward = false;
- double acceptance = 1;
- while(true) {
- synchronized(safeTriangles) {
- safeTriangles.clear();
- for(Mesh.T t : tile)
- if (t.shouldBeDrawn())
- safeTriangles.add(t);
- }
- if (!anneal) { repaint(); Thread.sleep(10); continue; }
-
- double ratio = (hits+misses==0) ? 1 : (hits / (hits+misses));
- hits = 0;
- misses = 0;
- double gamma = 1;
- acceptance = (ratio+acceptance)/2;
- accepts = (int)(Math.ceil(ratio*100));
- temps = (int)(Math.ceil(temp*1000));
- vertss = tile.size();
- if (breaks > 0) {
- while (breaks>0) {
- breaks--;
- breakit();
- }
- seek_upward = true;
- continue;
- } else if (acceptance > 0.96) gamma = 0.1f;
- else if (acceptance > 0.9) gamma = 0.2f;
- else if (acceptance > 0.8) gamma = 0.3f;
- else if (acceptance > 0.6) gamma = 0.4f;
- else if (acceptance > 0.3) gamma = 0.8f;
- else if (acceptance > 0.15) gamma = 0.94f;
- else if (acceptance > 0.10) gamma = 0.98f;
- else { breaks++; }
-
- if (seek_upward) {
- if (acceptance > 0.25) seek_upward = false;
- else gamma = 2-gamma;
- }
-
- if (anneal)
- temp = temp * gamma;
-
-
- HashSet<Mesh.Vertex> hs = new HashSet<Mesh.Vertex>();
- for(Mesh.Vertex p : tile.vertices()) hs.add(p);
- Mesh.Vertex[] pts = (Mesh.Vertex[])hs.toArray(new Mesh.Vertex[0]);
-
- int count = 0;
- long then = System.currentTimeMillis();
- for(int i=0; i<300; i++) {
- if (anneal) {
- Mesh.Vertex v = pts[Math.abs(random.nextInt()) % pts.length];
- if (breaks>0) break;
- if (!rand(temp,v)) { i--; continue; }
- v.recomputeFundamentalQuadricIfStale();
- v.recomputeFundamentalQuadricIfNeighborChanged();
- count++;
- }
- Thread.yield();
- repaint();
- }
-
- System.out.println("temp="+temp + " ratio="+(Math.ceil(acceptance*100)) + " " +
- "points_per_second=" +
- (count*1000)/((double)(System.currentTimeMillis()-then)));
- for(Mesh.Vertex p : goal.vertices()) {
- p.quadricStale = true;
- p.recomputeFundamentalQuadricIfNeighborChanged();
- }
- }
- }
-
-
- public static void main(String[] s) throws Exception {
- JFrame f = new JFrame();
- Main main = new Main(f);
- f.setJMenuBar(main.new MyMenuBar());
- f.pack();
- f.show();
- f.setSize(900, 900);
- f.doLayout();
- main.anneal();
- }
public class MyMenuItem extends JMenuItem implements ActionListener {
public MyMenuItem(String s) {
}
public void actionPerformed(ActionEvent event) {
synchronized(Main.this) {
- synchronized(safeTriangles) {
hit();
- }
}
}
public void hit() {}
}
public void hexBrick(boolean offset, boolean rotated) {
- tile = new Mesh(false);
+ setTile(new Mesh(false));
float width = (float)0.8;
float depth = (float)0.08;
float height = (float)0.4;
es.add(t.e3());
}
for(Mesh.E e : es) {
- if (e.p1.p.x == e.p2.p.x && e.p1.p.y == e.p2.p.y) continue;
- if (e.p1.p.z == e.p2.p.z && e.p1.p.y == e.p2.p.y) continue;
- if (e.p1.p.x == e.p2.p.x && e.p1.p.z == e.p2.p.z) continue;
+ if (e.v1.p.x == e.v2.p.x && e.v1.p.y == e.v2.p.y) continue;
+ if (e.v1.p.z == e.v2.p.z && e.v1.p.y == e.v2.p.y) continue;
+ if (e.v1.p.x == e.v2.p.x && e.v1.p.z == e.v2.p.z) continue;
e.shatter();
}
transforms = new Matrix[] {
hideMenu.add(new MyMenuItem("Show All Neighbors Wireframe") { public void hit() { neighborsWire = true; neighborsWireOne = false;}});
hideMenu.add(new MyMenuItem("Hide Neighbors") { public void hit() { neighborsWire = false; neighborsWireOne = false; neighbors = false; }});
+ goalMenu.add(new MyMenuItem("Fish with face") { public void hit() {
+ loadGoal("face.stl");
+ //goal.transform(Matrix.rotate(new Vec(0, 1, 0), (float)(Math.PI/2)));
+ goal.transform(Matrix.rotate(new Vec(0, 0, 1), (float)(Math.PI/2)));
+ //goal.transform(Matrix.scale(1, 2.2f, 1));
+ float factor = (float)Math.pow(tile.volume() / goal.volume(), 1.0/3.0);
+ //factor = factor * 0.8f;
+ goal.transform(Matrix.scale(0.3f));
+ //goal.transform(Matrix.rotate(new Vec(0,1,0), (float)(Math.PI*1/3)));
+ goal.transform(Matrix.rotate(new Vec(1,0,0), (float)(Math.PI*1/3)));
+ fixupGoal(true, false);
+ //goal.transform(Matrix.translate(new Vec(0.145f, 0, 0)));
+ fixupGoal(false, true);
+ }});
goalMenu.add(new MyMenuItem("Fish") { public void hit() {
loadGoal("fish.stl");
//goal.transform(Matrix.rotate(new Vec(0, 1, 0), (float)(Math.PI/2)));
goal.transform(Matrix.rotate(new Vec(0, 0, 1), (float)(Math.PI/2)));
+ goal.transform(Matrix.scale(1, 2.2f, 1));
float factor = (float)Math.pow(tile.volume() / goal.volume(), 1.0/3.0);
+ factor = factor * 0.8f;
+ goal.transform(Matrix.scale(factor));
+ fixupGoal(true, false);
+ //goal.transform(Matrix.translate(new Vec(0.145f, 0, 0)));
+ fixupGoal(false, true);
+ }});
+ goalMenu.add(new MyMenuItem("Hammerhead Fish") { public void hit() {
+ loadGoal("fish.stl");
+ goal.transform(Matrix.rotate(new Vec(0, 1, 0), (float)(Math.PI/2)));
+ goal.transform(Matrix.rotate(new Vec(0, 0, 1), (float)(3*Math.PI/2)));
+ float factor = (float)Math.pow(tile.volume() / goal.volume(), 1.0/3.0);
+ factor *= 0.75f;
goal.transform(Matrix.scale(factor));
fixupGoal();
}});
goalMenu.add(new MyMenuItem("Torus") { public void hit() {
loadGoal("torus.stl");
float factor = (float)Math.pow(tile.volume() / goal.volume(), 1.0/3.0);
- goal.transform(Matrix.scale(factor/3.3f));
+ goal.transform(Matrix.scale(factor/2.5f));
goal.transform(Matrix.rotate(new Vec(0, 1, 0), (float)(Math.PI/2)));
fixupGoal();
}});
hexBrick(false, true);
}});
tileMenu.add(new MyMenuItem("Temp (do not use)") { public void hit() {
- tile = new Mesh(false);
+ setTile(new Mesh(false));
float width = (float)0.8;
float depth = (float)0.08;
float height = (float)0.4;
};
fixupTile();
} });
- tileMenu.add(new MyMenuItem("Dense Packing (Hex)") { public void hit() {
- tile = new Mesh(false);
+ tileMenu.add(new MyMenuItem("Dense Packing (hex)") { public void hit() {
+ setTile(new Mesh(false));
float width = (float)3.2;
float depth = (float)0.32;
float height = (float)1.6;
generateTile(transforms, tile);
fixupTile();
} });
- tileMenu.add(new MyMenuItem("Slim Dense Packing (Hex)") { public void hit() {
- tile = new Mesh(false);
- float width = (float)3.2;
- float depth = (float)0.32;
- float height = (float)1.6;
+
+ tileMenu.add(new MyMenuItem("Slim Dense Packing (Cubic)") { public void hit() {
+ setTile(new Mesh(false));
float unit = 0.4f;
float r = unit/2;
float sin = (float)(unit * Math.sin(Math.PI/3));
float cos = (float)(unit * Math.cos(Math.PI/3));
float x = (float)(r*Math.tan(Math.PI/6));
float z = (float)(r/Math.cos(Math.PI/6));
- height = 2*r*(float)Math.sqrt(2f/3f);
+ float height = 2*r*(float)Math.sqrt(2f/3f);
+ transforms = new Matrix[] {
- r *= 0.3f;
- cos *= 0.3f;
- unit *= 0.3f;
- height *= 1.5f;
+ //Matrix.reflect(new Vec( 0, height, -z).norm()),
- /*
- sin *= 0.3f;
- x *= 0.3f;
- z *= 0.3f;
- */
- transforms = new Matrix[] {
Matrix.translate(new Vec(-unit, 0, 0)),
Matrix.translate(new Vec( unit, 0, 0)),
Matrix.translate(new Vec(-cos, 0, sin)),
Matrix.translate(new Vec( cos, 0, sin)),
Matrix.translate(new Vec(-cos, 0, -sin)),
Matrix.translate(new Vec( cos, 0, -sin)),
- Matrix.translate(new Vec( 0, height, z)),
- Matrix.translate(new Vec(-r, height, -x)),
- Matrix.translate(new Vec( r, height, -x)),
- Matrix.translate(new Vec( 0, -height, -z)),
- Matrix.translate(new Vec(-r, -height, x)),
- Matrix.translate(new Vec( r, -height, x)),
- Matrix.ONE,
+
+ Matrix.translate(new Vec( 0, height, -z)),
+ Matrix.translate(new Vec(-r, height, x)),
+ Matrix.translate(new Vec( r, height, x)),
+ Matrix.translate(new Vec( 0, -height, z)),
+ Matrix.translate(new Vec(-r, -height, -x)),
+ Matrix.translate(new Vec( r, -height, -x)),
+
+ /*
+ Matrix.translate(new Vec( 0, height, -z)).times(Matrix.rotate(new Vec(0,1,0), (float)Math.PI)),
+ Matrix.translate(new Vec(-r, height, x)).times(Matrix.rotate(new Vec(0,1,0), (float)Math.PI)),
+ Matrix.translate(new Vec( r, height, x)).times(Matrix.rotate(new Vec(0,1,0), (float)Math.PI)),
+ Matrix.translate(new Vec( 0, -height, -z)).times(Matrix.rotate(new Vec(0,1,0), (float)Math.PI)),
+ Matrix.translate(new Vec(-r, -height, x)).times(Matrix.rotate(new Vec(0,1,0), (float)Math.PI)),
+ Matrix.translate(new Vec( r, -height, x)).times(Matrix.rotate(new Vec(0,1,0), (float)Math.PI)),
+ */
+
+ /*
+ Matrix.translate(new Vec( 0, height, -z)).times(Matrix.scale(-1,1,-1)),
+ Matrix.translate(new Vec(-r, height, x)).times(Matrix.scale(-1,1,-1)),
+ Matrix.translate(new Vec( r, height, x)).times(Matrix.scale(-1,1,-1)),
+ Matrix.translate(new Vec( 0, -height, -z)).times(Matrix.scale(-1,1,-1)),
+ Matrix.translate(new Vec(-r, -height, x)).times(Matrix.scale(-1,1,-1)),
+ Matrix.translate(new Vec( r, -height, x)).times(Matrix.scale(-1,1,-1)),
+ */
+ Matrix.ONE
};
generateTile(transforms, tile);
+
+
+ transforms = new Matrix[] {
+ Matrix.reflect(new Vec( 0, height, -z).norm()),
+ //Matrix.reflect(new Vec( 0, -height, z)),
+ Matrix.ONE,
+ Matrix.translate(new Vec(-unit, 0, 0)),
+ Matrix.translate(new Vec( unit, 0, 0)),
+ /*
+ Matrix.translate(new Vec(-cos, 0, sin)),
+ Matrix.translate(new Vec( cos, 0, sin)),
+ Matrix.translate(new Vec(-cos, 0, -sin)),
+ Matrix.translate(new Vec( cos, 0, -sin)),
+
+ Matrix.translate(new Vec( 0, height, -z)),
+ Matrix.translate(new Vec(-r, height, x)),
+ Matrix.translate(new Vec( r, height, x)),
+ Matrix.translate(new Vec( 0, -height, z)),
+ Matrix.translate(new Vec(-r, -height, -x)),
+ Matrix.translate(new Vec( r, -height, -x)),
+ */
+ };
+
+
+ //for(int i=0; i<transforms.length; i++) transforms[i] = Matrix.translate(m.times(vecs[i]));
+
+ Matrix m = Matrix.scale(1.9f, 1f ,1);
+ //Matrix m = Matrix.scale(1f, 2.1f, 1f);
+ tile.transform(m);
+ for(int i=0; i<transforms.length; i++)
+ transforms[i] = preMultiplyTranslationalComponentBy(transforms[i], m);
+
+
fixupTile();
+
} });
tileMenu.add(new MyMenuItem("Genus-1") { public void hit() {
synchronized(this) {
- tile = new Mesh(false);
+ setTile(new Mesh(false));
+ Matrix mm = Matrix.scale(0.1f);
float height = 4;
float width = 4;
float depth = 1;
- Matrix mm = Matrix.scale(0.1f);
// top
quad(tile, mm,
new Point( 2, 2, 0),
Matrix.translate(new Vec(-0.2f,0,0))
.times(Matrix.rotate(new Vec(1,0,0), (float)(-1*Math.PI/2))),
+
//Matrix.rotate(new Vec(0,0,1), (float)(1*Math.PI/2)),
/*
};
fixupTile();
}}});
+ tileMenu.add(new MyMenuItem("Hammerhead") { public void hit() {
+ synchronized(this) {
+ setTile(new Mesh(false));
+ Matrix mm = Matrix.ONE;
+ float height1 = .1f;
+ float height2 = .1f;
+ float width = .4f;
+ float depth = .1f;
+ // top
+ Point a1 = new Point( -width/2, height2/2, -depth/2);
+ Point b1 = new Point( 0, height2/2, -depth/2);
+ Point c1 = new Point( 0, height1+height2/2, -depth/2);
+ Point d1 = new Point( width/2, height1+height2/2, -depth/2);
+ Point e1 = new Point( width/2, height2/2, -depth/2);
+ Point f1 = new Point( width/2, -height2/2, -depth/2);
+ Point g1 = new Point( width/2,-height1-height2/2, -depth/2);
+ Point h1 = new Point( 0,-height1-height2/2, -depth/2);
+ Point i1 = new Point( 0, -height2/2, -depth/2);
+ Point j1 = new Point( -width/2, -height2/2, -depth/2);
+ Point a2 = new Point( -width/2, height2/2, depth/2);
+ Point b2 = new Point( 0, height2/2, depth/2);
+ Point c2 = new Point( 0, height1+height2/2, depth/2);
+ Point d2 = new Point( width/2, height1+height2/2, depth/2);
+ Point e2 = new Point( width/2, height2/2, depth/2);
+ Point f2 = new Point( width/2, -height2/2, depth/2);
+ Point g2 = new Point( width/2,-height1-height2/2, depth/2);
+ Point h2 = new Point( 0,-height1-height2/2, depth/2);
+ Point i2 = new Point( 0, -height2/2, depth/2);
+ Point j2 = new Point( -width/2, -height2/2, depth/2);
+
+ quad(tile, mm, a1, b1, i1, j1);
+ quad(tile, mm, c1, d1, e1, b1);
+ quad(tile, mm, b1, e1, f1, i1);
+ quad(tile, mm, i1, f1, g1, h1);
+
+ quad(tile, mm, j2, i2, b2, a2);
+ quad(tile, mm, b2, e2, d2, c2);
+ quad(tile, mm, i2, f2, e2, b2);
+ quad(tile, mm, h2, g2, f2, i2);
+
+ quad(tile, mm, d1, d2, e2, e1);
+ quad(tile, mm, e1, e2, f2, f1);
+ quad(tile, mm, f1, f2, g2, g1);
+ quad(tile, mm, h1, g1, g2, h2);
+ quad(tile, mm, i2, i1, h1, h2);
+ quad(tile, mm, j1, i1, i2, j2);
+ quad(tile, mm, a2, a1, j1, j2);
+ quad(tile, mm, a1, a2, b2, b1);
+ quad(tile, mm, c2, c1, b1, b2);
+ quad(tile, mm, c1, c2, d2, d1);
+
+ transforms = new Matrix[] {
+
+ mm.times(Matrix.translate(new Vec( width, 0, 0))),
+ mm.times(Matrix.translate(new Vec( -width, 0, 0))),
+ mm.times(Matrix.translate(new Vec(-width/2, height1+height2, 0))),
+ mm.times(Matrix.translate(new Vec( width/2, height1+height2, 0))),
+ mm.times(Matrix.translate(new Vec(-width/2,-height1-height2, 0))),
+ mm.times(Matrix.translate(new Vec( width/2,-height1-height2, 0))),
+
+ mm.times(Matrix.translate(new Vec( width/2, 0, depth))),
+ mm.times(Matrix.translate(new Vec( -width/2, 0, depth))),
+ mm.times(Matrix.translate(new Vec( 0, height1+height2, depth))),
+ mm.times(Matrix.translate(new Vec( 0,-height1-height2, depth))),
+
+ mm.times(Matrix.translate(new Vec( width/2, 0, -depth))),
+ mm.times(Matrix.translate(new Vec( -width/2, 0, -depth))),
+ mm.times(Matrix.translate(new Vec( 0, height1+height2, -depth))),
+ mm.times(Matrix.translate(new Vec( 0,-height1-height2, -depth))),
+
+ Matrix.ONE
+ };
+ fixupTile();
+ }}});
// Finally, add all the menus to the menu bar.
add(tileMenu);
}
+ private static Matrix preMultiplyTranslationalComponentBy(Matrix mthis, Matrix mm) {
+ Vec v = mm.times(mthis.getTranslationalComponent());
+ return new Matrix(mthis.a, mthis.b, mthis.c, v.x,
+ mthis.e, mthis.f, mthis.g, v.y,
+ mthis.i, mthis.j, mthis.k, v.z,
+ mthis.m, mthis.n, mthis.o, 1);
+ }
+
+//////////////////////////////////////////////////////////////////////////////
+ public void breakit() {
+ int oldverts = verts;
+ if (verts > 2000 && !force) return;
+ force = false;
+ System.out.println("doubling vertices.");
+ PriorityQueue<Mesh.E> es = new PriorityQueue<Mesh.E>();
+ for(Mesh.T t : tile) {
+ es.add(t.e1());
+ es.add(t.e2());
+ es.add(t.e3());
+ Thread.yield();
+ repaint();
+ }
+ for(int i=0; i<Math.min(oldverts,50); i++) {
+ Mesh.E e = es.poll();
+ verts++;
+ e.shatter();
+ Thread.yield();
+ repaint();
+ }
+ System.out.println("now have " + verts + " vertices; max is 2000");
+ tile.rebindPoints();
+ }
+
+ public boolean rand(double temp, Mesh.Vertex p) {
+
+ p.reComputeErrorAround();
+ double tile_error = tile.error();
+ double goal_error = goal.error();
+
+ float max = p.averageEdgeLength()/5;
+ Vec v = new Vec(random.nextFloat(), random.nextFloat(), random.nextFloat());
+ v = v.norm().times((random.nextFloat() - 0.5f) * max);
+ Matrix m = Matrix.translate(v);
+ boolean good = p.move(v, false);
+ if (!good) { return false; }
+
+ double new_tile_error = tile.error();
+ double new_goal_error = goal.error();
+ double tile_delta = (new_tile_error - tile_error) / tile_error;
+ double goal_delta = (new_goal_error - goal_error) / goal_error;
+ double delta = tile_delta + goal_delta;
+ double swapProbability = Math.exp((-1 * delta) / temp);
+
+ //boolean doSwap = good && (tile_delta <= 0 && goal_delta <= 0);
+ //boolean doSwap = good && (tile_delta + goal_delta <= 0);
+ //if (temp < 0.000001) doSwap = good && (tile_delta <= 0 && goal_delta <= 0);
+ boolean doSwap = good && (Math.random() < swapProbability);
+
+ // always move uphill if possible -- potential idea
+ if (tile_delta <= 0 && goal_delta <= 0 && good) doSwap = true;
+ if (hillclimb)
+ doSwap = tile_delta <= 0 && goal_delta <= 0 && good;
+
+ if (doSwap) {
+ tile_error = new_tile_error;
+ goal_error = new_goal_error;
+ hits++;
+ p.goodp = p.p;
+ } else {
+ p.move(v.times(-1), true);
+ misses++;
+ }
+ p.reComputeErrorAround();
+ return true;
+ }
+
+ float hits = 0;
+ float misses = 0;
+ public void anneal() throws Exception {
+ double hightemp = 1;
+ temp = hightemp;
+ double last = 10;
+ boolean seek_upward = false;
+ double acceptance = 1;
+ while(true) {
+ synchronized(this) {
+ if (!anneal) { repaint(); Thread.sleep(10); continue; }
+
+ double ratio = (hits+misses==0) ? 1 : (hits / (hits+misses));
+ hits = 0;
+ misses = 0;
+ double gamma = 1;
+ acceptance = (ratio+acceptance)/2;
+ accepts = (int)(Math.ceil(ratio*100));
+ temps = (int)(Math.ceil(temp*1000));
+ vertss = tile.size();
+ if (breaks > 0) {
+ while (breaks>0) {
+ breaks--;
+ breakit();
+ }
+ seek_upward = true;
+ continue;
+ } else if (acceptance > 0.96) gamma = 0.1f;
+ else if (acceptance > 0.9) gamma = 0.2f;
+ else if (acceptance > 0.8) gamma = 0.3f;
+ else if (acceptance > 0.6) gamma = 0.4f;
+ else if (acceptance > 0.3) gamma = 0.8f;
+ else if (acceptance > 0.15) gamma = 0.94f;
+ else if (acceptance > 0.10) gamma = 0.98f;
+
+ else if (acceptance < 0.01) breaks++;
+
+ if (seek_upward) {
+ if (acceptance > 0.25) seek_upward = false;
+ else gamma = 2-gamma;
+ }
+
+ if (anneal)
+ temp = temp * gamma;
+
+
+ HashSet<Mesh.Vertex> hs = new HashSet<Mesh.Vertex>();
+ for(Mesh.Vertex p : tile.vertices()) hs.add(p);
+ Mesh.Vertex[] pts = (Mesh.Vertex[])hs.toArray(new Mesh.Vertex[0]);
+
+ int count = 0;
+ long then = System.currentTimeMillis();
+ for(int i=0; i<300; i++) {
+ if (anneal) {
+ Mesh.Vertex v = pts[Math.abs(random.nextInt()) % pts.length];
+ if (breaks>0) break;
+ if (!rand(temp,v)) { i--; continue; }
+ v.recomputeFundamentalQuadricIfStale();
+ v.recomputeFundamentalQuadricIfNeighborChanged();
+ count++;
+ }
+ Thread.yield();
+ repaint();
+ }
+
+ System.out.println("temp="+temp + " ratio="+(Math.ceil(acceptance*100)) + " " +
+ "points_per_second=" +
+ (count*1000)/((double)(System.currentTimeMillis()-then)));
+ for(Mesh.Vertex p : goal.vertices()) {
+ p.quadricStale = true;
+ p.recomputeFundamentalQuadricIfNeighborChanged();
+ }
+ }
+ }
+ }
+
+
+ public static void main(String[] s) throws Exception {
+ JFrame f = new JFrame();
+ f.setLayout(new BorderLayout());
+ Main main = new Main(f);
+ f.add(main, BorderLayout.CENTER);
+ f.setJMenuBar(main.new MyMenuBar());
+ f.pack();
+ f.show();
+ f.setSize(900, 900);
+ f.doLayout();
+ main.anneal();
+ }
+
+
}
\ No newline at end of file
projects / anneal.git / blobdiff