src/edu/berkeley/qfat/Viewer.java

   1 package edu.berkeley.qfat;
   2 import java.io.*;
   3 import java.nio.*;
   4 import java.awt.*;
   5 import java.awt.event.*;
   6 import javax.swing.*;
   7 import javax.media.opengl.*;
   8 import javax.media.opengl.glu.*;
   9 import com.sun.opengl.util.*;
  10 import java.util.*;
  11 import edu.berkeley.qfat.geom.*;
  12 import edu.berkeley.qfat.geom.Point;
  13
  14 public class Viewer implements GLEventListener, MouseListener, MouseMotionListener, KeyListener, MouseWheelListener  {
  15
  16     public boolean force = false;
  17     public Mesh tile = new Mesh(false);
  18     public Mesh goal = new Mesh(false);
  19     public Matrix[] transforms;
  20     public Mesh.Vertex[] points;
  21
  22     public int whichNeighbor = 1;
  23
  24     public double temp;
  25     public boolean tileon = true;
  26     public boolean tilemeshon = false;
  27     public boolean goalon = true;
  28     public boolean anneal = false;
  29     public boolean hillclimb = false;
  30     public boolean neighbors = false;
  31     public boolean neighborsWire = false;
  32     public boolean neighborsWireOne = false;
  33     public boolean errorNormals = false;
  34
  35     public int breaks = 0;
  36     boolean alt = false;
  37     boolean shift = false;
  38     boolean control = false;
  39
  40     public Point getMouse() {
  41         return new Point(mousex, glcanvas.getHeight()-mousey, 0);
  42     }
  43
  44     public void mouseWheelMoved(MouseWheelEvent e) {
  45         tz -= e.getWheelRotation();
  46     }
  47
  48     public void keyTyped(KeyEvent e)  { }
  49     public void keyPressed(KeyEvent e)  {
  50         switch(e.getKeyCode()) {
  51             case KeyEvent.VK_CONTROL: control = true; break;
  52             case KeyEvent.VK_ALT: alt = true; break;
  53             case KeyEvent.VK_SHIFT: shift = true; break;
  54             case KeyEvent.VK_SPACE: breaks++; force = true; break;
  55             case KeyEvent.VK_UP: temp = temp * 2; break;
  56             case KeyEvent.VK_ENTER: temp = 10; break;
  57             case KeyEvent.VK_LEFT: whichNeighbor--; break;
  58             case KeyEvent.VK_RIGHT: whichNeighbor++; break;
  59             case KeyEvent.VK_D: dump(); break;
  60             case KeyEvent.VK_E: errorNormals = !errorNormals; break;
  61             case KeyEvent.VK_A: hillclimb = false; anneal = !anneal; break;
  62             case KeyEvent.VK_H: anneal = true; hillclimb = !hillclimb; break;
  63             case KeyEvent.VK_N: neighbors = !neighbors; break;
  64             case KeyEvent.VK_T: tileon = !tileon; break;
  65             case KeyEvent.VK_G: goalon = !goalon; break;
  66             case KeyEvent.VK_M: tilemeshon = !tilemeshon; break;
  67         }
  68     }
  69     public synchronized void dump() {
  70         try {
  71         PrintWriter pw = new PrintWriter(new OutputStreamWriter(new FileOutputStream("dump.stl")));
  72         pw.println("solid dump");
  73         for(Mesh.T t : tile) {
  74             Vec normal = t.norm();
  75             pw.println("facet normal " + normal.x + " " + normal.y + " " + normal.z);
  76             pw.println("  outer loop");
  77             for(Mesh.Vertex v : new Mesh.Vertex[] { t.v1(), t.v2(), t.v3() }) {
  78                 pw.println("    vertex " + v.p.x + " " + v.p.y + " " + v.p.z);
  79             }
  80             pw.println("  endloop");
  81             pw.println("endfacet");
  82         }
  83         pw.println("endsolid dump");
  84         pw.flush();
  85         pw.close();
  86         } catch (Exception e) { throw new RuntimeException(e); }
  87     }
  88     public void keyReleased(KeyEvent e) {
  89         switch(e.getKeyCode()) {
  90             case KeyEvent.VK_CONTROL: control = false; break;
  91             case KeyEvent.VK_ALT: alt = false; break;
  92             case KeyEvent.VK_SHIFT: shift = false; break;
  93         }
  94     }
  95
  96     public void mouseClicked(MouseEvent e) { }
  97     public void mouseEntered(MouseEvent e) { }
  98     public void mouseExited(MouseEvent e) { }
  99     public void mousePressed(MouseEvent e) {
 100         clickPoint = getMouse();
 101         clickClosest = closest == null ? null : closest.getPoint();
 102     }
 103     public void mouseReleased(MouseEvent e) {
 104         clickPoint = null;
 105         clickClosest = null;
 106     }
 107
 108     Point clickPoint = null;
 109     Point clickClosest = null;
 110
 111     int mousex;
 112     int mousey;
 113     public void mouseMoved(MouseEvent e) {
 114         mousex = e.getX();
 115         mousey = e.getY();
 116     }
 117
 118     float tx = 0;
 119     float ty = 0;
 120     float tz = 0;
 121     float anglex = 0;
 122     float angley = 0;
 123     public void mouseDragged(MouseEvent e) {
 124         if (shift) {
 125             /*
 126             tx += (mousex - e.getX())/(float)20;
 127             ty += (mousey - e.getY())/(float)20;
 128             */
 129             if (closest != null && lastGL != null && projection != null && clickClosest != null) {
 130                 synchronized(safeTriangles) {
 131                     Vec d1 = projection.inverse().times(getMouse()).minus(projection.inverse().times(clickPoint));
 132                     Vec delta = d1.plus(clickClosest).minus(closest.getPoint());
 133                     //System.out.println(delta + " " + closest.getPoint());
 134                     System.out.println(getMouse().minus(clickPoint));
 135                     closest.move(Matrix.translate(delta), true);
 136                 }
 137             }
 138         } else {
 139             anglex -= mousex - e.getX();
 140             angley += mousey - e.getY();
 141         }
 142         mousex = e.getX();
 143         mousey = e.getY();
 144     }
 145
 146     /**
 147      * Take care of initialization here.
 148      */
 149     public void init(GLAutoDrawable gld) {
 150         GL gl = gld.getGL();
 151         gl.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
 152         gl.glViewport(0, 0, 500, 300);
 153         gl.glEnable(GL.GL_DEPTH_TEST);
 154         gl.glClearDepth(1.0);
 155         gl.glDepthFunc(GL.GL_LEQUAL);
 156         gl.glMatrixMode(GL.GL_PROJECTION);
 157         gl.glLoadIdentity();
 158         gl.glMatrixMode(GL.GL_MODELVIEW);
 159
 160         float mat_specular[] = { 0.5f, 0.5f, 0.5f, 0.5f };
 161         float mat_shininess[] = { 50.0f };
 162         gl.glShadeModel(GL.GL_SMOOTH);
 163         //gl.glMaterialfv(GL.GL_FRONT, GL.GL_DIFFUSE, mat_specular, 0);
 164         //gl.glMaterialfv(GL.GL_FRONT, GL.GL_SPECULAR, mat_specular, 0);
 165         //gl.glMaterialfv(GL.GL_FRONT, GL.GL_AMBIENT, new float[] { 0.3f, 0.3f, 0.3f, 0.3f }, 0);
 166         //gl.glMaterialfv(GL.GL_FRONT, GL.GL_SHININESS, mat_shininess, 0);
 167         gl.glLightfv(GL.GL_LIGHT0, GL.GL_POSITION, new float[] { 1.0f,    4.0f,  -10.0f, 0.0f }, 0);
 168         gl.glLightfv(GL.GL_LIGHT1, GL.GL_POSITION, new float[] { -10.0f, 10.0f,   10.0f, 0.0f }, 0);
 169         gl.glLightfv(GL.GL_LIGHT2, GL.GL_POSITION, new float[] { 10.0f, -10.0f,   10.0f, 0.0f }, 0);
 170         gl.glLightfv(GL.GL_LIGHT3, GL.GL_POSITION, new float[] { 10.0f,  10.0f,  -10.0f, 0.0f }, 0);
 171         gl.glLightfv(GL.GL_LIGHT4, GL.GL_POSITION, new float[] { -10.0f, 10.0f,  -10.0f, 0.0f }, 0);
 172         gl.glLightfv(GL.GL_LIGHT5, GL.GL_POSITION, new float[] { 10.0f, -10.0f,  -10.0f, 0.0f }, 0);
 173         gl.glEnable(GL.GL_LIGHTING);
 174         gl.glEnable(GL.GL_LIGHT0);
 175         /*
 176         gl.glEnable(GL.GL_LIGHT1);
 177         gl.glEnable(GL.GL_LIGHT2);
 178         gl.glEnable(GL.GL_LIGHT3);
 179         gl.glEnable(GL.GL_LIGHT4);
 180         gl.glEnable(GL.GL_LIGHT5);
 181         */
 182         gl.glColorMaterial(GL.GL_FRONT_AND_BACK, GL.GL_AMBIENT_AND_DIFFUSE);
 183         gl.glEnable(GL.GL_COLOR_MATERIAL);
 184
 185         display(gld);
 186     }
 187
 188     private GL lastGL = null;
 189
 190     public int temps;
 191     public int accepts;
 192     public    int vertss;
 193     public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) { }
 194     public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) { }
 195     public void display(GLAutoDrawable drawable) {
 196
 197         if (transforms==null) return;
 198
 199
 200         glcanvas.setSize(f.getWidth(), f.getHeight() - 100);
 201         Graphics2D g = (Graphics2D)f.getGraphics();
 202         g.setColor(Color.black);
 203         g.fillRect(0, f.getHeight()-100, f.getWidth(), f.getHeight());
 204         g.setColor(Color.red);
 205         int top = f.getHeight()-70;
 206         g.drawString("temperature: "+temps, 10, 30+top);
 207         g.drawString("acceptance: "+accepts, 10, 50+top);
 208         g.drawString("vertices: "+vertss, 10, 70+top);
 209         g.fillRect(140, 25+top, temps, 10);
 210         g.fillRect(140, 45+top, accepts, 10);
 211         g.fillRect(140, 65+top, vertss, 10);
 212
 213         GL gl = drawable.getGL();
 214         lastGL = gl;
 215         GLU glu = new GLU();
 216         gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
 217         gl.glPointSize(5.0f);
 218         gl.glLoadIdentity();
 219         glu.gluPerspective(50, ((float)drawable.getWidth())/drawable.getHeight(), 0.5, 10);
 220         glu.gluLookAt(0, 0, -((tz/10)-1), 0, 0, 0, 0, 1, 0);
 221         gl.glRotatef(anglex/3, 0, 1, 0);
 222         gl.glRotatef(-(angley/3), 1, 0, 0);
 223
 224
 225         gl.glDisable(GL.GL_LIGHTING);
 226         gl.glColor4f(1, 0, 0, 1);
 227         gl.glBegin(GL.GL_LINES);
 228         gl.glVertex3f(0,0,0);
 229         gl.glVertex3f(.3f,0,0);
 230         gl.glEnd();
 231         gl.glColor4f(0, 1, 0, 1);
 232         gl.glBegin(GL.GL_LINES);
 233         gl.glVertex3f(0,0,0);
 234         gl.glVertex3f(0,.3f,0);
 235         gl.glEnd();
 236         gl.glColor4f(0, 0, 1, 1);
 237         gl.glBegin(GL.GL_LINES);
 238         gl.glVertex3f(0,0,0);
 239         gl.glVertex3f(0,0,.3f);
 240         gl.glEnd();
 241         gl.glEnable(GL.GL_LIGHTING);
 242
 243
 244         gl.glBegin(GL.GL_TRIANGLES);
 245         if (tileon)
 246             draw(gl, true, safeTriangles);
 247         if (tilemeshon)
 248             draw(gl, false, safeTriangles);
 249         gl.glEnd();
 250
 251         //draw(gl, false, tile);
 252
 253         gl.glBegin(GL.GL_TRIANGLES);
 254         gl.glColor4f((float)0.5, (float)0.5, (float)0.5, (float)0.8);
 255         if (goalon)
 256             draw(gl, false, goal);
 257         gl.glEnd();
 258
 259
 260         int i = 0;
 261         //gl.glDisable(GL.GL_DEPTH_TEST);
 262         gl.glColor4f(1,1,1,1);
 263         for(Matrix m : transforms) {
 264             /*
 265               gl.glColor4f(0, 1, 1, 1);
 266               gl.glBegin(GL.GL_LINES);
 267               new Point(0,0,0).glVertex(gl);
 268               new Point(0,0,0).plus(m.getTranslationalComponent()).glVertex(gl);
 269               gl.glEnd();
 270               gl.glEnable(GL.GL_LIGHTING);
 271             */
 272             //if (v1.z==0 && v1.y==0) continue;
 273             i++;
 274             if (neighborsWireOne && i!=whichNeighbor) continue;
 275             //if (i>4) continue;
 276             /*
 277             Point p = new Point(0, 0, 0).times(m);
 278             Vec v = new Vec(p.x, p.y, p.z);
 279             v = v.times((float)1.04);
 280             gl.glTranslatef(v.x, v.y, v.z);
 281             */
 282             if (neighbors) draw(gl, true, safeTriangles, m);
 283             else if (neighborsWire || neighborsWireOne) draw(gl, false, safeTriangles, m);
 284             /*
 285             gl.glTranslatef(-v.x, -v.y, -v.z);
 286             */
 287         }
 288         //gl.glEnable(GL.GL_DEPTH_TEST);
 289
 290         gl.glDisable(GL.GL_LIGHTING);
 291         gl.glShadeModel(GL.GL_FLAT);
 292         if (closest != null) {
 293             gl.glColor3f(1,1,1);
 294             gl.glBegin(gl.GL_POINTS);
 295             closest.getPoint().glVertex(gl);
 296             gl.glEnd();
 297             /*
 298             Mesh.Vertex v2 = closest.hack(gl, getMouse());
 299             gl.glBegin(GL.GL_LINES);
 300             closest.getPoint().glVertex(gl);
 301             if (v2 != null) v2.getPoint().glVertex(gl);
 302             gl.glEnd();
 303             */
 304         }
 305
 306         gl.glFlush();
 307         gl.glDrawBuffer(GL.GL_BACK);
 308         gl.glReadBuffer( GL.GL_BACK );
 309         gl.glPixelStorei( GL.GL_PACK_ALIGNMENT, 1);
 310         gl.glFlush();
 311         gl.glDisable(GL.GL_LIGHTING);
 312         gl.glShadeModel(GL.GL_FLAT);
 313
 314         IntBuffer buf = ByteBuffer.allocateDirect(9*4*4).order(ByteOrder.nativeOrder()).asIntBuffer();
 315         gl.glColor3f(0,0,0);
 316         gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
 317         double dist = Double.MAX_VALUE;
 318         if (clickPoint==null) closest = null;
 319         projection = Matrix.getProjectionMatrix(gl);
 320         synchronized(safeTriangles) {
 321             for(Mesh.T t : safeTriangles)
 322                 t.glTriangle(gl, null);
 323             for(Mesh.Vertex v : tile.vertices()) {
 324                 Point p = v.getPoint();
 325                 gl.glColor3f(1,1,1);
 326                 gl.glBegin(gl.GL_POINTS);
 327                 p.glVertex(gl);
 328                 gl.glEnd();
 329                 gl.glFlush();
 330
 331                 Point projected = projection.times(p);
 332                 int x = (int)projected.x;
 333                 int y = (int)projected.y;
 334                 gl.glReadPixels(x-1, y-1, 3, 3, gl.GL_RGB, gl.GL_UNSIGNED_BYTE, buf);
 335
 336                 boolean vis = false;
 337                 for(int j=0; j<9*4; j++) vis |= buf.get(j)!=0;
 338                 v.visible = vis;
 339                 if (vis) {
 340                     gl.glColor3f(0,0,0);
 341                     gl.glBegin(gl.GL_POINTS);
 342                     p.glVertex(gl);
 343                     gl.glEnd();
 344                     y = glcanvas.getHeight()-y;
 345                     if (clickPoint==null) {
 346                         if (closest==null || (x-mousex)*(x-mousex)+(y-mousey)*(y-mousey) < dist) {
 347                             dist = (x-mousex)*(x-mousex)+(y-mousey)*(y-mousey);
 348                             closest = v;
 349                         }
 350                     }
 351                 }
 352             }
 353         }
 354         gl.glShadeModel(GL.GL_SMOOTH);
 355         gl.glEnable(GL.GL_LIGHTING);
 356         gl.glDrawBuffer(GL.GL_FRONT);
 357     }
 358     Mesh.Vertex closest = null;
 359     Matrix projection = null;
 360
 361     protected HashSet<Mesh.T> safeTriangles = new HashSet<Mesh.T>();
 362
 363     private void draw(GL gl, boolean triangles, Iterable<Mesh.T> tris) { draw(gl, triangles, tris, Matrix.ONE); }
 364     private void draw(GL gl, boolean triangles, Iterable<Mesh.T> tris, Matrix m) {
 365         float red = 0.0f;
 366         float green = 0.0f;
 367         float blue = 0.0f;
 368         synchronized(safeTriangles) {
 369         for(Mesh.T t : tris) {
 370             if (red < 0.15) red = 1.0f;
 371             if (green < 0.15) green = 1.0f;
 372             if (blue < 0.15) blue = 1.0f;
 373             red -= .09f;
 374             green -= .12f;
 375             blue -= .15f;
 376
 377             /*
 378             if (triangles) switch(t.color) {
 379                 case 0: gl.glColor4f((float)0.25, (float)0.25, (float)0.75, (float)0.3); break;
 380                 case 1: gl.glColor4f((float)0.25, (float)0.75, (float)0.25, (float)0.3); break;
 381                 case 2: gl.glColor4f((float)0.75, (float)0.25, (float)0.25, (float)0.3); break;
 382                 case 3: gl.glColor4f((float)0.50, (float)0.50, (float)0.50, (float)0.3); break;
 383                 case 4: gl.glColor4f((float)0.25, (float)0.75, (float)0.75, (float)0.3); break;
 384                 case 5: gl.glColor4f((float)0.25, (float)0.75, (float)0.75, (float)0.3); break;
 385                 case 6: gl.glColor4f((float)0.75, (float)0.25, (float)0.75, (float)0.3); break;
 386             }
 387             */
 388
 389             gl.glColor4f((float)(0.25+(0.05*t.color)),
 390                          (float)(0.25+(0.05*t.color)),
 391                          (float)(0.75+(0.05*t.color)),
 392                          (float)0.3);
 393             //if (t.v1().visible && t.v2().visible && t.v3().visible) continue;
 394
 395             /*
 396             if (t.e1().pair.t==null) gl.glColor4f((float)0.25, (float)0.25, (float)0.75, (float)0.3);
 397             else if (t.e2().pair.t==null) gl.glColor4f((float)0.25, (float)0.25, (float)0.75, (float)0.3);
 398             else if (t.e3().pair.t==null) gl.glColor4f((float)0.25, (float)0.25, (float)0.75, (float)0.3);
 399             else  gl.glColor4f((float)0.75, (float)0.25, (float)0.25, (float)0.3);
 400             */
 401             //gl.glBegin(GL.GL_LINES);
 402
 403             if (triangles) {
 404                 t.glTriangle(gl, m);
 405             } else {
 406                 gl.glDisable(GL.GL_LIGHTING);
 407                 gl.glBegin(GL.GL_LINES);
 408                 gl.glColor3f(1, 1, 1);
 409                 m.times(t.e1().p1.goodp).glVertex(gl);
 410                 m.times(t.e1().p2.goodp).glVertex(gl);
 411                 m.times(t.e2().p1.goodp).glVertex(gl);
 412                 m.times(t.e2().p2.goodp).glVertex(gl);
 413                 m.times(t.e3().p1.goodp).glVertex(gl);
 414                 m.times(t.e3().p2.goodp).glVertex(gl);
 415                 gl.glEnd();
 416                 gl.glEnable(GL.GL_LIGHTING);
 417             }
 418
 419             Point centroid = t.centroid();
 420             gl.glBegin(GL.GL_LINES);
 421             gl.glColor3f(1, 1, 1);
 422
 423             if (triangles && errorNormals)
 424                 for(Mesh.Vertex p : new Mesh.Vertex[] { t.v1(), t.v2(), t.v3() }) {
 425                     if (p.ok) {
 426                         //gl.glDisable(GL.GL_LIGHTING);
 427                         gl.glBegin(GL.GL_LINES);
 428                         gl.glColor3f(1, 1, 1);
 429                         p.p.glVertex(gl);
 430                         p.p.plus(p.norm().times((float)p.error()*10)).glVertex(gl);
 431                         //if (p.nearest_in_other_mesh != null) p.nearest_in_other_mesh.p.glVertex(gl);
 432                         //tile.nearest(p).centroid().glVertex(gl);
 433                         gl.glEnd();
 434                         //gl.glEnable(GL.GL_LIGHTING);
 435                     }
 436                 }
 437             gl.glEnd();
 438
 439         }
 440         }
 441     }
 442
 443     private JFrame f;
 444     private GLCanvas glcanvas;
 445     public Viewer(JFrame f) {
 446         this.f = f;
 447
 448         GLCapabilities glcaps = new GLCapabilities();
 449         glcanvas = new GLCanvas();
 450         glcanvas.addGLEventListener(this);
 451         f.add(glcanvas, BorderLayout.CENTER);
 452
 453         glcanvas.addMouseListener(this);
 454         glcanvas.addMouseMotionListener(this);
 455         glcanvas.addMouseWheelListener(this);
 456         glcanvas.addKeyListener(this);
 457     }
 458     public void repaint() {
 459         glcanvas.repaint();
 460     }
 461 }