import javax.media.opengl.*;
import javax.media.opengl.glu.*;
import edu.berkeley.qfat.geom.*;
+import edu.berkeley.qfat.geom.HasBindingGroup;
import edu.wlu.cs.levy.CG.KDTree;
import edu.berkeley.qfat.geom.Point;
import com.infomatiq.jsi.IntProcedure;
t.e2().dobind();
t.e3().dobind();
}
+ System.out.println("rebound!");
}
public void transform(Matrix m) {
public Point p, oldp, goodp;
E e; // some edge *leaving* this point
- Matrix binding = Matrix.ONE;
- Vertex bound_to = this;
private boolean illegal = false;
public Point getPoint() { return p; }
public boolean move(Matrix m, boolean ignoreProblems) {
boolean good = true;
- for(Vertex p = this; p != null; p = (p.bound_to==this)?null:p.bound_to)
- good &= p.transform(m.times(p.p), ignoreProblems);
- for(Vertex p = this; p != null; p = (p.bound_to==this)?null:p.bound_to)
- if (good || ignoreProblems) p.reComputeErrorAround();
- else p.transform(p.oldp, true);
+
+ // t1' = M * t1
+ // t2' = t2.getMatrix(t1) * t1'
+ // t2' = t2.getMatrix(t1) * M * t1
+ // t1 = t1.getMatrix(t2) * t2
+ // M * t1 = M * t1.getMatrix(t2) * t2
+ for(Vertex v : (Iterable<Vertex>)getBoundPeers())
+ good &= v.transform(v.getBindingMatrix(this).times(m).times(this.p),
+ ignoreProblems);
+
+ for(Vertex v : (Iterable<Vertex>)getBoundPeers())
+ if (good || ignoreProblems) v.reComputeErrorAround();
+ else v.transform(v.oldp, true);
+
return good;
}
return norm.norm();
}
- public boolean isBoundTo(Vertex p) {
- for(Vertex px = p; px!=null; px=(px.bound_to==p?null:px.bound_to))
- if (px==this)
- return true;
- return false;
- }
-
- public void unbind() { bound_to = this; binding = Matrix.ONE; }
- public void bind(Vertex p) { bind(p, Matrix.ONE); }
- public void bind(Vertex p, Matrix binding) {
- if (isBoundTo(p)) return;
- Vertex temp_bound_to = p.bound_to;
- Matrix temp_binding = p.binding;
- p.bound_to = this.bound_to;
- p.binding = binding.times(this.binding); // FIXME: may have order wrong here
- this.bound_to = temp_bound_to;
- this.binding = temp_binding.times(temp_binding); // FIXME: may have order wrong here
- }
+ public void bindTo(Vertex p) { bindTo(Matrix.ONE, p); }
}
public class BindingGroup {
e.bind_to = bind_others;
for (E epeer : e_bind_peers.set) add(epeer);
for (E eother : e_bind_to.set) bind_others.add(eother);
-
+ /*
for(E eother : bind_others.set) {
if (e.next.bind_to.set.contains(eother.prev)) {
e.next.next.bindEdge(eother.prev.prev);
e.prev.prev.bindEdge(eother.next.next);
}
}
-
+ */
}
public void dobind(E e) {
for(E ebound : set) {
- e.p1.bind(ebound.p2);
- e.p2.bind(ebound.p1);
+ e.p1.bindTo(Matrix.ONE, ebound.p2);
+ e.p2.bindTo(Matrix.ONE, ebound.p1);
}
}
- public void shatter(BindingGroup bg1, BindingGroup bg2) {
+ public void shatter(BindingGroup bg1, BindingGroup bg2, boolean triangles) {
for(E e : set) {
- e.shatter(e.midpoint(), bg1, bg2);
+ e.shatter(e.midpoint(), bg1, bg2, triangles);
}
}
}
/** [UNIQUE] an edge */
- public final class E implements Comparable<E> {
+ public final class E extends HasBindingGroup implements Comparable<E> {
public final Vertex p1, p2;
T t; // triangle to our "left"
public boolean intersects(T t) { return t.intersects(p1.p, p2.p); }
+ public void bindingGroupChanged(edu.berkeley.qfat.geom.BindingGroup newBindingGroup_) {
+ edu.berkeley.qfat.geom.BindingGroup<E> newBindingGroup =
+ (edu.berkeley.qfat.geom.BindingGroup<E>)newBindingGroup_;
+ if (newBindingGroup==null) return;
+ if (this==newBindingGroup.getMaster()) return;
+ /*
+ for(E eother : (Iterable<E>)newBindingGroup) {
+ this.next.bindTo(newBindingGroup.getMatrix(eother), eother.next);
+ this.prev.bindTo(newBindingGroup.getMatrix(eother), eother.prev);
+ }
+ */
+ }
+
public float stretchRatio() {
Vertex nearest = error_against.nearest(midpoint());
float nearest_distance = midpoint().distance(nearest.p);
return nearest_distance/other_distance;
}
public float comparator() {
-
-
return length();
//return t==null?0:(1/t.aspect());
}
public int compareTo(E e) {
return e.comparator() > comparator() ? 1 : -1;
}
- public void bindEdge(E e) { bind_to.add(e); }
- public void dobind() { bind_to.dobind(this); }
+ public void bindEdge(E e, Matrix m) {
+ //bind_to.add(e);
+
+ //assumes edges are identical length at binding time
+ e = e.pair;
+ Vec reflectionPlaneNormal = e.p2.p.minus(e.p1.p).norm();
+ float a = reflectionPlaneNormal.x;
+ float b = reflectionPlaneNormal.y;
+ float c = reflectionPlaneNormal.z;
+ Matrix reflectionMatrix =
+ new Matrix( 1-2*a*a, -2*a*b, -2*a*c, 0,
+ -2*a*b, 1-2*b*b, -2*b*c, 0,
+ -2*a*c, -2*b*c, 1-2*c*c, 0,
+ 0, 0, 0, 1);
+ /*
+ m = m.times(Matrix.translate(e.midpoint().minus(Point.ORIGIN))
+ .times(reflectionMatrix)
+ .times(Matrix.translate(Point.ORIGIN.minus(e.midpoint()))));
+ */
+ System.out.println(reflectionPlaneNormal);
+ System.out.println(" " + p1.p + " " + m.times(e.p1.p));
+ System.out.println(" " + p2.p + " " + m.times(e.p2.p));
+ if (m.times(e.p1.p).minus(p1.p).mag() > EPSILON) throw new Error();
+ if (m.times(e.p2.p).minus(p2.p).mag() > EPSILON) throw new Error();
+ this.bindTo(m, e);
+ }
+
+ public void dobind() {
+ //bind_to.dobind(this);
+ for(E e : (Iterable<E>)getBoundPeers()) {
+ if (e==this) continue;
+ p1.bindTo(getBindingMatrix(e), e.p1);
+ p2.bindTo(getBindingMatrix(e), e.p2);
+ }
+ }
- public Point shatter() { return shatter(midpoint(), null, null); }
- public Point shatter(Point mid, BindingGroup bg1, BindingGroup bg2) {
+ public Point shatter() { return shatter(true); }
+ public Point shatter(boolean triangles) { return shatter(midpoint(), null, null, triangles); }
+ public Point shatter(Point mid, BindingGroup bg1, BindingGroup bg2, boolean triangles) {
+ return shatter(mid, bg1, bg2, triangles, false);
+ }
+ public Point shatter(Point mid, BindingGroup bg1, BindingGroup bg2, boolean triangles, boolean leader) {
if (shattered || destroyed) return mid;
shattered = true;
if (bg1==null) bg1 = new BindingGroup();
if (bg2==null) bg2 = new BindingGroup();
BindingGroup old_bind_to = bind_to;
- bind_peers.shatter(bg1, bg2);
- old_bind_to.shatter(bg2.other(), bg1.other());
+ bind_peers.shatter(bg1, bg2, triangles);
+ old_bind_to.shatter(bg2.other(), bg1.other(), triangles);
+ if (!triangles) {
+ next.shatter(false);
+ prev.shatter(false);
+ }
pair.shatter();
destroy();
- newT(r.p, p1.p, mid, null, old_colorclass);
- newT(r.p, mid, p2.p, null, old_colorclass);
- bg1.add(p1.getE(mid));
- bg2.add(p2.getE(mid).pair);
+ if (triangles) {
+ newT(r.p, p1.p, mid, null, old_colorclass);
+ newT(r.p, mid, p2.p, null, old_colorclass);
+ bg1.add(p1.getE(mid));
+ bg2.add(p2.getE(mid).pair);
+ if (leader) p1.getE(mid).shatter();
+ }
return mid;
}
public void reinsert() { triangles.remove(this); triangles.add(this); }
public boolean shouldBeDrawn() {
+ /*
+ if (e1().bind_to==null) return false;
+ if (e2().bind_to==null) return false;
+ if (e3().bind_to==null) return false;
if (e1().bind_to.set.size() == 0) return false;
if (e2().bind_to.set.size() == 0) return false;
if (e3().bind_to.set.size() == 0) return false;
+ */
return true;
}
projects / anneal.git / blobdiff