X-Git-Url: http://git.megacz.com/?p=anneal.git;a=blobdiff_plain;f=src%2Fedu%2Fberkeley%2Fqfat%2FMeshViewer.java;h=2fe420029c4d0861122046da0a5950979cb671c7;hp=3799ab5a042bb7bfc11b711b8aa8d6b1a1048337;hb=489c7122bf2f358c50588599e54bf38cfd62d5b3;hpb=ebf227e9a3373f74682716dedc9ba4c3e5882f6e diff --git a/src/edu/berkeley/qfat/MeshViewer.java b/src/edu/berkeley/qfat/MeshViewer.java index 3799ab5..2fe4200 100644 --- a/src/edu/berkeley/qfat/MeshViewer.java +++ b/src/edu/berkeley/qfat/MeshViewer.java @@ -8,11 +8,350 @@ import javax.media.opengl.*; import javax.media.opengl.glu.*; import com.sun.opengl.util.*; import java.util.*; +import edu.berkeley.qfat.bind.*; import edu.berkeley.qfat.geom.*; import edu.berkeley.qfat.geom.Point; -public class MeshViewer extends Viewer { +/** + * A basic MeshViewer displays zero or more meshes to the user, in + * wireframe or shaded panels. + */ +public class MeshViewer extends JPanel implements GLEventListener, MouseListener, MouseMotionListener, KeyListener, MouseWheelListener { - public MeshViewer(JFrame f) { super(f); } + Main main; + + private float tz = 0; + private float anglex = 0; + private float angley = 0; + + boolean drawEdge = false; + + private Mesh.Vertex closest = null; + private Mesh.E closestEdge = null; + private Point closestOriginallyAt = null; + private int mousex; + private int mousey; + private Matrix projection = null; + private Point clickPoint = null; + private GLCanvas glcanvas; + private boolean updateVisibilities = false; + private boolean updateClosest = false; + private boolean mouseInside = false; + + private HashSet meshes = new HashSet(); + + public synchronized void addMesh(Mesh m) { meshes.add(m); } + public synchronized void removeMesh(Mesh m) { meshes.remove(m); } + + public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) { } + public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) { } + + public void addKeyListener(KeyListener kl) { glcanvas.addKeyListener(kl); } + + public synchronized void init(GLAutoDrawable gld) { + GL gl = glcanvas.getGL();//gld.getGL(); + + gl.glEnable(gl.GL_DOUBLEBUFFER); + + gl.glClearColor(0.0f, 0.0f, 0.0f, 1.0f); + gl.glViewport(0, 0, 500, 300); + gl.glEnable(GL.GL_DEPTH_TEST); + gl.glClearDepth(1.0); + gl.glDepthFunc(GL.GL_LEQUAL); + gl.glMatrixMode(GL.GL_PROJECTION); + gl.glLoadIdentity(); + gl.glMatrixMode(GL.GL_MODELVIEW); + + float mat_specular[] = { 0.5f, 0.5f, 0.5f, 0.5f }; + float mat_shininess[] = { 50.0f }; + gl.glShadeModel(GL.GL_SMOOTH); + gl.glLightfv(GL.GL_LIGHT0, GL.GL_POSITION, new float[] { 1.0f, 4.0f, -10.0f, 0.0f }, 0); + gl.glLightfv(GL.GL_LIGHT1, GL.GL_POSITION, new float[] { -10.0f, 10.0f, 10.0f, 0.0f }, 0); + gl.glLightfv(GL.GL_LIGHT2, GL.GL_POSITION, new float[] { 10.0f, -10.0f, 10.0f, 0.0f }, 0); + gl.glLightfv(GL.GL_LIGHT3, GL.GL_POSITION, new float[] { 10.0f, 10.0f, -10.0f, 0.0f }, 0); + gl.glLightfv(GL.GL_LIGHT4, GL.GL_POSITION, new float[] { -10.0f, 10.0f, -10.0f, 0.0f }, 0); + gl.glLightfv(GL.GL_LIGHT5, GL.GL_POSITION, new float[] { 10.0f, -10.0f, -10.0f, 0.0f }, 0); + gl.glEnable(GL.GL_LIGHTING); + gl.glEnable(GL.GL_LIGHT0); + + gl.glColorMaterial(GL.GL_FRONT_AND_BACK, GL.GL_AMBIENT_AND_DIFFUSE); + gl.glEnable(GL.GL_COLOR_MATERIAL); + + display(gld); + + // hack to get around Mac OS bug + IntBuffer buf = ByteBuffer.allocateDirect(9*4*4).order(ByteOrder.nativeOrder()).asIntBuffer(); + gl.glReadPixels(0,0, 1, 1, gl.GL_RGB, gl.GL_UNSIGNED_BYTE, buf); + } + + public synchronized final void display(GLAutoDrawable drawable) { + glcanvas.setSize(glcanvas.getParent().getWidth(), glcanvas.getParent().getHeight()); + + GL gl = glcanvas.getGL();//drawable.getGL(); + GLU glu = new GLU(); + gl.glDrawBuffer(GL.GL_BACK); + + if (updateVisibilities) { + updateVisibilities = false; + // update vertex visibilities + updateVisibility(gl); + } + gl.glDrawBuffer(GL.GL_BACK); + + if (!mouseInside) gl.glClearColor(0.1f, 0.1f, 0.1f, 1.0f); + else gl.glClearColor(0.0f, 0.0f, 0.0f, 1.0f); + + gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT); + gl.glPointSize(5.0f); + gl.glLoadIdentity(); + glu.gluPerspective(50, ((float)drawable.getWidth())/drawable.getHeight(), 0.5, 10); + + glu.gluLookAt(0, 0, -((tz/10)-1), 0, 0, 0, 0, 1, 0); + gl.glRotatef(anglex/3, 0, 1, 0); + gl.glRotatef(-(angley/3), 1, 0, 0); + + gl.glEnable(GL.GL_LIGHTING); + gl.glShadeModel(GL.GL_SMOOTH); + for(Mesh mesh : meshes) { + mesh.render(gl, Matrix.ONE); + if (main != null && main.whichNeighbor>0 && main.transforms!=null && !mesh.option_wireframe) { + mesh.option_wireframe = true; + mesh.render(gl, main.transforms[main.whichNeighbor-1]); + mesh.option_wireframe = false; + } + } + + // highlight the point closest to the mouse; we do this here to avoid flicker + if (closest != null) { + gl.glDisable(GL.GL_LIGHTING); + gl.glShadeModel(GL.GL_FLAT); + + if (drawEdge) { + for(Mesh.E e : (Iterable)closestEdge.getBoundPeers()) { + gl.glColor3f(0,1,0); + gl.glBegin(gl.GL_LINES); + e.glVertices(gl); + gl.glEnd(); + gl.glColor3f(1,0,0); + gl.glBegin(gl.GL_LINES); + e.pair.glVertices(gl); + gl.glEnd(); + } + /* + if (closestEdge != null) { + gl.glColor3f(1,1,0); + gl.glBegin(gl.GL_TRIANGLES); + Mesh.T t = closestEdge.t; + t.p1().glVertex(gl); + t.p2().glVertex(gl); + t.p3().glVertex(gl); + gl.glColor3f(0,1,1); + main.transforms[main.whichNeighbor-1].times(closestEdge.t.p1()).glVertex(gl); + main.transforms[main.whichNeighbor-1].times(closestEdge.t.p2()).glVertex(gl); + main.transforms[main.whichNeighbor-1].times(closestEdge.t.p3()).glVertex(gl); + System.out.println("t=" + +t.p1()+"\n " + +t.p2()+"\n " + +t.p3()+"\n " + ); + System.out.println("x=" + +main.transforms[main.whichNeighbor-1].times(t.p1())+"\n " + +main.transforms[main.whichNeighbor-1].times(t.p2())+"\n " + +main.transforms[main.whichNeighbor-1].times(t.p3())+"\n " + ); + gl.glEnd(); + } + */ + } + + if (closest.visible) { + gl.glDisable(GL.GL_DEPTH_TEST); + gl.glColor3f(1,1,0); + gl.glBegin(gl.GL_POINTS); + closest.getPoint().glVertex(gl); + gl.glColor3f(0.5f,0.5f,0); + for(Mesh.Vertex v : (Iterable)closest.getBoundPeers()) + if (v!=closest) + v.getPoint().glVertex(gl); + gl.glEnd(); + + if (closest.getBindingConstraint() instanceof Plane) { + Plane p = (Plane)closest.getBindingConstraint(); + Vec v = p.norm(); + gl.glEnable(gl.GL_BLEND); + gl.glBlendFunc(gl.GL_SRC_ALPHA, gl.GL_ONE_MINUS_SRC_ALPHA); + gl.glColor4f(1,1,0,0.3f); + gl.glBegin(gl.GL_LINES); + closest.getPoint().glVertex(gl); + v.plus(closest.getPoint()).glVertex(gl); + closest.getPoint().glVertex(gl); + v.times(-1).plus(closest.getPoint()).glVertex(gl); + gl.glEnd(); + gl.glDisable(gl.GL_BLEND); + } + + gl.glEnable(GL.GL_DEPTH_TEST); + } + } + + projection = Matrix.getProjectionMatrix(gl); + + if (updateClosest) { + updateClosest = false; + double dist = Double.MAX_VALUE; + double distE = Double.MAX_VALUE; + closest = null; + closestOriginallyAt = null; + closestEdge = null; + for(Mesh mesh : meshes) + if (mesh.option_selectable) + for(Mesh.Vertex v : mesh.vertices()) { + if (!v.visible) continue; + Point p = projection.times(v.getPoint()); + int x = (int)p.x; + int y = (int)p.y; + int mousex = (int)getMouse().x; + int mousey = (int)getMouse().y; + if (closest==null || (x-mousex)*(x-mousex)+(y-mousey)*(y-mousey) < dist) { + dist = (x-mousex)*(x-mousex)+(y-mousey)*(y-mousey); + closest = v; + } + for(Mesh.E e = v.e; e!=null; e=e.pair.next==v.e?null:e.pair.next) { + if (!e.v2.visible) continue; + Segment s = + new Segment(projection.times(e.v1.getPoint()), + projection.times(e.v2.getPoint())); + double dist2 = s.distance(getMouse()); + if (dist2 < distE) { + distE = dist2; + closestEdge = e; + } + } + } + } + gl.glFlush(); + glcanvas.setAutoSwapBufferMode(false); + glcanvas.swapBuffers(); + } + + protected synchronized void updateVisibility(GL gl) { + IntBuffer buf = ByteBuffer.allocateDirect(9*4*4).order(ByteOrder.nativeOrder()).asIntBuffer(); + gl.glFlush(); + gl.glDrawBuffer(GL.GL_BACK); + gl.glReadBuffer(GL.GL_BACK); + gl.glPixelStorei(GL.GL_PACK_ALIGNMENT, 1); + gl.glFlush(); + gl.glDisable(GL.GL_LIGHTING); + gl.glShadeModel(GL.GL_FLAT); + gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT); + gl.glColor3f(0,0,0); + for(Mesh mesh : meshes) mesh.render(gl, Matrix.ONE, true); + for(Mesh mesh : meshes) + if (mesh.option_selectable) + for(Mesh.Vertex v : mesh.vertices()) { + Point p = v.getPoint(); + Point projected = projection.times(p); + boolean vis = false; + + gl.glColor3f(1,1,1); + gl.glBegin(gl.GL_POINTS); + p.glVertex(gl); + gl.glEnd(); + gl.glFlush(); + + vis = false; + gl.glReadPixels((int)projected.x-1, (int)projected.y-1, 3, 3, gl.GL_RGB, gl.GL_UNSIGNED_BYTE, buf); + for(int j=0; j<9*4; j++) vis |= buf.get(j)!=0; + + v.visible = vis; + if (vis) { + gl.glColor3f(0,0,0); + gl.glBegin(gl.GL_POINTS); + p.glVertex(gl); + gl.glEnd(); + } + } + gl.glShadeModel(GL.GL_SMOOTH); + gl.glEnable(GL.GL_LIGHTING); + gl.glDrawBuffer(GL.GL_FRONT); + } + + /** return the position of the mouse as a point in window-space */ + public Point getMouse() { + return new Point(mousex, glcanvas.getHeight()-mousey, 0); + } + + /** return the position where the mouse button was pressed, or null if it is not currently pressed */ + public Point getMouseClick() { + return clickPoint; + } + + public void mouseWheelMoved(MouseWheelEvent e) { + tz -= e.getWheelRotation(); + } + + public void keyTyped(KeyEvent e) { } + public void keyPressed(KeyEvent e) { } + public void keyReleased(KeyEvent e) { } + + public void mouseClicked(MouseEvent e) { } + public void mouseEntered(MouseEvent e) { mouseInside = true; } + public void mouseExited(MouseEvent e) { mouseInside = false; } + public void mousePressed(MouseEvent e) { + clickPoint = getMouse(); + } + + public void mouseReleased(MouseEvent e) { + clickPoint = null; + } + + public void mouseMoved(MouseEvent e) { + mousex = e.getX(); + mousey = e.getY(); + + if ((e.getModifiersEx() & MouseEvent.SHIFT_DOWN_MASK) != 0) { + updateVisibilities = true; + drawEdge = true; + updateClosest = true; + } + } + + public void mouseDragged(MouseEvent e) { + if ((e.getModifiersEx() & MouseEvent.SHIFT_DOWN_MASK) != 0) { + updateVisibilities = true; + drawEdge = true; + if (closest != null && projection != null) { + synchronized(this) { + if (closestOriginallyAt==null) closestOriginallyAt = closest.getPoint(); + Vec d1 = projection.inverse().times(getMouse()).minus(projection.inverse().times(clickPoint)); + Vec delta = d1.plus(closestOriginallyAt).minus(closest.getPoint()); + closest.move(delta, false); + } + } + } else if ((e.getModifiersEx() & MouseEvent.CTRL_DOWN_MASK) != 0) { + // move edge + } else { + updateVisibilities = true; + anglex -= mousex - e.getX(); + angley += mousey - e.getY(); + } + mousex = e.getX(); + mousey = e.getY(); + } + + public MeshViewer() { + glcanvas = new GLCanvas(); + glcanvas.addGLEventListener(this); + setLayout(new BorderLayout()); + this.add(glcanvas, BorderLayout.CENTER); + glcanvas.addMouseListener(this); + glcanvas.addMouseMotionListener(this); + glcanvas.addMouseWheelListener(this); + glcanvas.addKeyListener(this); + } + + public void repaint() { + if (glcanvas != null) glcanvas.repaint(); + } } \ No newline at end of file