gl.glBegin(GL.GL_LINES);
gl.glColor3f(1, 1, 1);
for (T t : this) {
- m.times(t.e1().p1.goodp).glVertex(gl);
- m.times(t.e1().p2.goodp).glVertex(gl);
- m.times(t.e2().p1.goodp).glVertex(gl);
- m.times(t.e2().p2.goodp).glVertex(gl);
- m.times(t.e3().p1.goodp).glVertex(gl);
- m.times(t.e3().p2.goodp).glVertex(gl);
+ // fixme used to be .goodp
+ m.times(t.e1().v1.p).glVertex(gl);
+ m.times(t.e1().v2.p).glVertex(gl);
+ m.times(t.e2().v1.p).glVertex(gl);
+ m.times(t.e2().v2.p).glVertex(gl);
+ m.times(t.e3().v1.p).glVertex(gl);
+ m.times(t.e3().v2.p).glVertex(gl);
}
gl.glEnd();
gl.glEnable(GL.GL_LIGHTING);
for(E ex : (Iterable<E>)e.getBoundPeers()) {
Vertex m = nearest(ex.midpoint());
m.edge = true;
- E e3 = ex.p1.getE(m).next;
- if (e3.p2.original)
+ E e3 = ex.v1.getE(m).next;
+ if (e3.v2.original)
flip.add(e3);
}
}
for (Vertex v : verts) {
if (v.edge) {
for(E e = v.e; e!=null; e=e.pair.next==v.e?null:e.pair.next) {
- if (e.p2.original) {
- v.wish(e.p2);
- v.wish(e.p2);
- v.wish(e.p2);
- v.wish(e.p2);
+ if (e.v2.original) {
+ v.wish(e.v2);
+ v.wish(e.v2);
+ v.wish(e.v2);
+ v.wish(e.v2);
}
}
for(E e = v.e; e!=null; e=e.pair.next==v.e?null:e.pair.next) {
- for(E e2 = e.p2.e; e2!=null; e2=e2.pair.next==e.p2.e?null:e2.pair.next) {
- if (e2.p2.original) {
- v.wish(e.p2);
+ for(E e2 = e.v2.e; e2!=null; e2=e2.pair.next==e.v2.e?null:e2.pair.next) {
+ if (e2.v2.original) {
+ v.wish(e.v2);
}
}
}
checkLegality();
}
for(E e = this.e; e!=null; e=e.pair.next==this.e?null:e.pair.next)
- e.p2.quadricStale = true;
+ e.v2.quadricStale = true;
return !illegal || (illegalbefore && illegal);
}
if (nearest_in_other_mesh != null)
nearest_in_other_mesh.reComputeError();
for(E e = this.e; e!=null; e=e.pair.next==this.e?null:e.pair.next)
- e.p2.reComputeError();
+ e.v2.reComputeError();
}
public boolean visit(Object o) {
T t = (T)o;
if (illegal) return false;
for(E e = Vertex.this.e; e!=null; e=e.pair.next==Vertex.this.e?null:e.pair.next) {
- if (!t.has(e.p1) && !t.has(e.p2) && e.intersects(t)) { illegal = true; }
+ if (!t.has(e.v1) && !t.has(e.v2) && e.intersects(t)) { illegal = true; }
if (e.t != null) {
- if (!e.t.has(t.e1().p1) && !e.t.has(t.e1().p2) && t.e1().intersects(e.t)) { illegal = true; }
- if (!e.t.has(t.e2().p1) && !e.t.has(t.e2().p2) && t.e2().intersects(e.t)) { illegal = true; }
- if (!e.t.has(t.e3().p1) && !e.t.has(t.e3().p2) && t.e3().intersects(e.t)) { illegal = true; }
+ if (!e.t.has(t.e1().v1) && !e.t.has(t.e1().v2) && t.e1().intersects(e.t)) { illegal = true; }
+ if (!e.t.has(t.e2().v1) && !e.t.has(t.e2().v2) && t.e2().intersects(e.t)) { illegal = true; }
+ if (!e.t.has(t.e3().v1) && !e.t.has(t.e3().v2) && t.e3().intersects(e.t)) { illegal = true; }
}
}
return !illegal;
public E getFreeIncident(E start, E before) {
for(E e = start; e!=null; e=e.pair.next==before?null:e.pair.next)
- if (e.pair.p2 == this && e.pair.t == null && e.pair.next.t == null)
+ if (e.pair.v2 == this && e.pair.t == null && e.pair.next.t == null)
return e.pair;
return null;
}
- public E getE(Point p2) {
- Vertex v = vertices.get(p2);
+ public E getE(Point v2) {
+ Vertex v = vertices.get(v2);
if (v==null) return null;
return getE(v);
}
- public E getE(Vertex p2) {
- if (this.e!=null && this!=this.e.p1 && this!=this.e.p2) throw new RuntimeException();
+ public E getE(Vertex v2) {
+ if (this.e!=null && this!=this.e.v1 && this!=this.e.v2) throw new RuntimeException();
int i=0;
for(E e = this.e; e!=null; e=e.pair.next==this.e?null:e.pair.next) {
- if (e.p1 == this && e.p2 == p2) return e;
+ if (e.v1 == this && e.v2 == v2) return e;
i++;
e.sanity();
if (e.destroyed) throw new RuntimeException("fark " + i + " " + e.prev + " " + (e.prev.next==e) + " " + e.prev.destroyed);
public void sanity() {
if (destroyed) return;
- if (pair!=null && (pair.p1!=p2 || pair.p2!=p1)) throw new RuntimeException();
- if (next!=null && next.p1!=p2) throw new RuntimeException();
- if (prev!=null && prev.p2!=p1) throw new RuntimeException();
+ if (pair!=null && (pair.v1!=v2 || pair.v2!=v1)) throw new RuntimeException();
+ if (next!=null && next.v1!=v2) throw new RuntimeException();
+ if (prev!=null && prev.v2!=v1) throw new RuntimeException();
}
- public final Vertex p1, p2;
+ public final Vertex v1, v2;
T t; // triangle to our "left"
E prev; // previous half-edge
E next; // next half-edge
E pair; // partner half-edge
boolean shattered = false;
- public boolean intersects(T t) { return t.intersects(p1.p, p2.p); }
+ public boolean intersects(T t) { return t.intersects(v1.p, v2.p); }
- public Segment getSegment() { return new Segment(p1.getPoint(), p2.getPoint()); }
+ public Segment getSegment() { return new Segment(v1.getPoint(), v2.getPoint()); }
public void flip() {
// FIXME: coplanarity check needed
Vertex v2 = pair.t.getOtherVertex(pair);
destroy();
pair.destroy();
- T t1 = newT(v1, v2, p2);
- T t2 = newT(v2, v1, p1);
+ T t1 = newT(v1, v2, this.v2);
+ T t2 = newT(v2, v1, this.v1);
t1.e1().sanity();
t1.e2().sanity();
t1.e3().sanity();
e.destroy();
e.pair.destroy();
if (v1e.getE(v2e)!=null) throw new RuntimeException();
- newT(v1e, v2e, e.p2).red = true;
- newT(v2e, v1e, e.p1).red = true;
+ newT(v1e, v2e, e.v2).red = true;
+ newT(v2e, v1e, e.v1).red = true;
v2e.getE(v1e).bindTo(e.getBindingMatrix(this), v1.getE(v2));
v1e.getE(v2e).bindTo(e.pair.getBindingMatrix(this.pair), v2.getE(v1));
}
Vertex nearest = error_against.nearest(midpoint());
float nearest_distance = midpoint().distance(nearest.p);
float other_distance =
- (p1.p.distance(error_against.nearest(p1.p).p)+
- p2.p.distance(error_against.nearest(p2.p).p))/2;
+ (v1.p.distance(error_against.nearest(v1.p).p)+
+ v2.p.distance(error_against.nearest(v2.p).p))/2;
return nearest_distance/other_distance;
}
public float comparator() {
e = e.pair;
/*
//assumes edges are identical length at binding time
- Vec reflectionPlaneNormal = e.p2.p.minus(e.p1.p).norm();
+ Vec reflectionPlaneNormal = e.v2.p.minus(e.v1.p).norm();
float a = reflectionPlaneNormal.x;
float b = reflectionPlaneNormal.y;
float c = reflectionPlaneNormal.z;
.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));
+ System.out.println(" " + v1.p + " " + m.times(e.v1.p));
+ System.out.println(" " + v2.p + " " + m.times(e.v2.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();
+ if (m.times(e.v1.p).minus(v1.p).mag() > EPSILON) throw new Error();
+ if (m.times(e.v2.p).minus(v2.p).mag() > EPSILON) throw new Error();
*/
this.bindTo(m, e);
}
public void dobind() {
for(E e : (Iterable<E>)getBoundPeers()) {
if (e==this) continue;
- p1.bindTo(getBindingMatrix(e), e.p1);
- p2.bindTo(getBindingMatrix(e), e.p2);
- e.p1.setConstraint(getConstraint());
- e.p2.setConstraint(getConstraint());
+ v1.bindTo(getBindingMatrix(e), e.v1);
+ v2.bindTo(getBindingMatrix(e), e.v2);
+ e.v1.setConstraint(getConstraint());
+ e.v2.setConstraint(getConstraint());
}
}
E pnext = e.pair.next;
E pprev = e.pair.prev;
Point mid = e.midpoint();
- Vertex r = e.next.p2;
- Vertex l = e.pair.next.p2;
+ Vertex r = e.next.v2;
+ Vertex l = e.pair.next.v2;
if (!e.destroyed) {
e.destroy();
e.pair.destroy();
- newT(r.p, e.p1.p, mid, null, 0);
- newT(r.p, mid, e.p2.p, null, 0);
- newT(l.p, mid, e.p1.p, null, 0);
- newT(l.p, e.p2.p, mid, null, 0);
+ newT(r.p, e.v1.p, mid, null, 0);
+ newT(r.p, mid, e.v2.p, null, 0);
+ newT(l.p, mid, e.v1.p, null, 0);
+ newT(l.p, e.v2.p, mid, null, 0);
}
}
for(E e : (Iterable<E>)getBoundPeers()) {
Point mid = e.midpoint();
if (first==null) {
- first = e.p1.getE(mid);
+ first = e.v1.getE(mid);
firste = e;
firstx = e.pair;
- firstq = e.p2.getE(mid).pair;
+ firstq = e.v2.getE(mid).pair;
continue;
}
- e.p1.getE(mid). bindTo(e.getBindingMatrix(firste), first);
- e.p1.getE(mid).pair. bindTo(e.getBindingMatrix(firste), first.pair);
- e.p2.getE(mid).pair. bindTo(e.getBindingMatrix(firste), firstq);
- e.p2.getE(mid).pair.pair.bindTo(e.getBindingMatrix(firste), firstq.pair);
+ e.v1.getE(mid). bindTo(e.getBindingMatrix(firste), first);
+ e.v1.getE(mid).pair. bindTo(e.getBindingMatrix(firste), first.pair);
+ e.v2.getE(mid).pair. bindTo(e.getBindingMatrix(firste), firstq);
+ e.v2.getE(mid).pair.pair.bindTo(e.getBindingMatrix(firste), firstq.pair);
}
/*
first.setConstraint(firste.getConstraint());
prev.next = pair.next;
pair.next.prev = prev;
- if (p1.e == this) p1.e = pair.next;
- if (pair.p1.e == pair) pair.p1.e = next;
+ if (v1.e == this) v1.e = pair.next;
+ if (pair.v1.e == pair) pair.v1.e = next;
- if (p2.e == this) throw new RuntimeException();
- if (pair.p2.e == pair) throw new RuntimeException();
+ if (v2.e == this) throw new RuntimeException();
+ if (pair.v2.e == pair) throw new RuntimeException();
/*
next = pair;
this.prev.next = this;
this.next.prev = this;
this.pair.pair = this;
- if (this.next.p1 != p2) throw new Error();
- if (this.prev.p2 != p1) throw new Error();
- if (this.p1.e == null) this.p1.e = this;
+ if (this.next.v1 != v2) throw new Error();
+ if (this.prev.v2 != v1) throw new Error();
+ if (this.v1.e == null) this.v1.e = this;
if (!added) added = true;
}
private boolean added = false;
/** angle between this half-edge and the next */
public double angle() {
- Vec v1 = next.p2.p.minus(p2.p);
- Vec v2 = this.p1.p.minus(p2.p);
+ Vec v1 = next.v2.p.minus(this.v2.p);
+ Vec v2 = this.v1.p.minus(this.v2.p);
return Math.acos(v1.norm().dot(v2.norm()));
}
public Vertex getOther(Vertex v) {
- if (this.p1 == v) return p2;
- if (this.p2 == v) return p1;
+ if (this.v1 == v) return v2;
+ if (this.v2 == v) return v1;
throw new Error();
}
public void makeAdjacent(E e) {
if (this.next == e) return;
- if (p2 != e.p1) throw new Error("cannot make adjacent -- no shared vertex: " + this + " " + e);
+ if (v2 != e.v1) throw new Error("cannot make adjacent -- no shared vertex: " + this + " " + e);
if (t != null || e.t != null) throw new Error("cannot make adjacent -- edges not both free " + t + " " + e.t);
- E freeIncident = p2.getFreeIncident(e, this);
+ E freeIncident = v2.getFreeIncident(e, this);
e.prev.next = freeIncident.next;
freeIncident.next.prev = e.prev;
}
/** creates an isolated edge out in the middle of space */
- public E(Point p1, Point p2) {
- if (vertices.get(p1) != null) throw new Error();
- if (vertices.get(p2) != null) throw new Error();
- this.p1 = new Vertex(p1);
- this.p2 = new Vertex(p2);
+ public E(Point v1, Point v2) {
+ if (vertices.get(v1) != null) throw new Error();
+ if (vertices.get(v2) != null) throw new Error();
+ this.v1 = new Vertex(v1);
+ this.v2 = new Vertex(v2);
this.prev = this.next = this.pair = new E(this, this, this);
- this.p1.e = this;
- this.p2.e = this.pair;
+ this.v1.e = this;
+ this.v2.e = this.pair;
sync();
}
- /** adds a new half-edge from prev.p2 to p2 */
+ /** adds a new half-edge from prev.v2 to v2 */
public E(E prev, Point p) {
- Vertex p2;
- p2 = vertices.get(p);
- if (p2 == null) p2 = new Vertex(p);
- this.p1 = prev.p2;
- this.p2 = p2;
+ Vertex v2;
+ v2 = vertices.get(p);
+ if (v2 == null) v2 = new Vertex(p);
+ this.v1 = prev.v2;
+ this.v2 = v2;
this.prev = prev;
if (prev.destroyed) throw new RuntimeException();
- if (p2.getE(p1) != null) throw new Error();
- if (p2.e==null) {
+ if (v2.getE(v1) != null) throw new Error();
+ if (v2.e==null) {
this.next = this.pair = new E(this, this, prev.next);
} else {
- E q = p2.getFreeIncident();
+ E q = v2.getFreeIncident();
this.next = q.next;
this.next.prev = this;
E z = prev.next;
this.prev.next = this;
this.pair = new E(q, this, z);
}
- if (p2.e==null) p2.e = this.pair;
+ if (v2.e==null) v2.e = this.pair;
sync();
}
/** adds a new half-edge to the mesh with a given predecessor, successor, and pair */
public E(E prev, E pair, E next) {
- this.p1 = prev.p2;
- this.p2 = next.p1;
+ this.v1 = prev.v2;
+ this.v2 = next.v1;
if (prev.destroyed) throw new RuntimeException();
this.prev = prev;
this.next = next;
this.pair = pair;
sync();
}
- public Point midpoint() { return new Point((p1.p.x+p2.p.x)/2, (p1.p.y+p2.p.y)/2, (p1.p.z+p2.p.z)/2); }
- public boolean has(Vertex v) { return v==p1 || v==p2; }
- public float length() { return p1.p.minus(p2.p).mag(); }
- public String toString() { return p1+"->"+p2; }
+ public Point midpoint() { return new Point((v1.p.x+v2.p.x)/2, (v1.p.y+v2.p.y)/2, (v1.p.z+v2.p.z)/2); }
+ public boolean has(Vertex v) { return v==v1 || v==v2; }
+ public float length() { return v1.p.minus(v2.p).mag(); }
+ public String toString() { return v1+"->"+v2; }
}
private static float round(float f) {
return Math.round(f*1000)/1000f;
}
- public T newT(HasPoint p1, HasPoint p2, HasPoint p3) {
- return newT(p1.getPoint(), p2.getPoint(), p3.getPoint(), null, 0);
+ public T newT(HasPoint v1, HasPoint v2, HasPoint v3) {
+ return newT(v1.getPoint(), v2.getPoint(), v3.getPoint(), null, 0);
}
- public T newT(Point p1, Point p2, Point p3, Vec norm, int colorclass) {
+ public T newT(Point v1, Point v2, Point v3, Vec norm, int colorclass) {
if (coalesce) {
- for(Vertex v : vertices) { if (p1.distance(v.p) < EPSILON) { p1 = v.p; break; } }
- for(Vertex v : vertices) { if (p2.distance(v.p) < EPSILON) { p2 = v.p; break; } }
- for(Vertex v : vertices) { if (p3.distance(v.p) < EPSILON) { p3 = v.p; break; } }
+ for(Vertex v : vertices) { if (v1.distance(v.p) < EPSILON) { v1 = v.p; break; } }
+ for(Vertex v : vertices) { if (v2.distance(v.p) < EPSILON) { v2 = v.p; break; } }
+ for(Vertex v : vertices) { if (v3.distance(v.p) < EPSILON) { v3 = v.p; break; } }
/*
- p1 = new Point(round(p1.x), round(p1.y), round(p1.z));
- p2 = new Point(round(p2.x), round(p2.y), round(p2.z));
- p3 = new Point(round(p3.x), round(p3.y), round(p3.z));
+ v1 = new Point(round(v1.x), round(v1.y), round(v1.z));
+ v2 = new Point(round(v2.x), round(v2.y), round(v2.z));
+ v3 = new Point(round(v3.x), round(v3.y), round(v3.z));
*/
}
if (norm != null) {
- Vec norm2 = p3.minus(p1).cross(p2.minus(p1));
+ Vec norm2 = v3.minus(v1).cross(v2.minus(v1));
float dot = norm.dot(norm2);
//if (Math.abs(dot) < EPointSILON) throw new Error("dot products within evertsilon of each other: "+norm+" "+norm2);
- if (dot < 0) { Point p = p1; p1=p2; p2 = p; }
+ if (dot < 0) { Point p = v1; v1=v2; v2 = p; }
}
- E e12 = makeE(p1, p2);
- E e23 = makeE(p2, p3);
- E e31 = makeE(p3, p1);
+ E e12 = makeE(v1, v2);
+ E e23 = makeE(v2, v3);
+ E e31 = makeE(v3, v1);
while(e12.next != e23 || e23.next != e31 || e31.next != e12) {
e12.makeAdjacent(e23);
e23.makeAdjacent(e31);
E pnext = e.pair.next;
E pprev = e.pair.prev;
Point mid = e.midpoint();
- Vertex r = e.next.p2;
- Vertex l = e.pair.next.p2;
+ Vertex r = e.next.v2;
+ Vertex l = e.pair.next.v2;
if (!e.destroyed) {
e.destroy();
e.pair.destroy();
- newT(r.p, e.p1.p, mid, null, 0);
- newT(r.p, mid, e.p2.p, null, 0);
- newT(l.p, mid, e.p1.p, null, 0);
- newT(l.p, e.p2.p, mid, null, 0);
+ newT(r.p, e.v1.p, mid, null, 0);
+ newT(r.p, mid, e.v2.p, null, 0);
+ newT(l.p, mid, e.v1.p, null, 0);
+ newT(l.p, e.v2.p, mid, null, 0);
}
}
for(E e : (Iterable<E>)getBoundPeers()) {
Point mid = e.midpoint();
if (first==null) {
- first = e.p1.getE(mid);
+ first = e.v1.getE(mid);
firste = e;
firstx = e.pair;
- firstq = e.p2.getE(mid).pair;
+ firstq = e.v2.getE(mid).pair;
continue;
}
- e.p1.getE(mid). bindTo(e.getBindingMatrix(firste), first);
- e.p1.getE(mid).pair. bindTo(e.getBindingMatrix(firste), first.pair);
- e.p2.getE(mid).pair. bindTo(e.getBindingMatrix(firste), firstq);
- e.p2.getE(mid).pair.pair.bindTo(e.getBindingMatrix(firste), firstq.pair);
+ e.v1.getE(mid). bindTo(e.getBindingMatrix(firste), first);
+ e.v1.getE(mid).pair. bindTo(e.getBindingMatrix(firste), first.pair);
+ e.v2.getE(mid).pair. bindTo(e.getBindingMatrix(firste), firstq);
+ e.v2.getE(mid).pair.pair.bindTo(e.getBindingMatrix(firste), firstq.pair);
}
*/
/*
public E e1() { return e1; }
public E e2() { return e1.next; }
public E e3() { return e1.prev; }
- public Vertex v1() { return e1.p1; }
- public Vertex v2() { return e1.p2; }
- public Vertex v3() { return e1.next.p2; }
- public Point p1() { return e1.p1.p; }
- public Point p2() { return e1.p2.p; }
- public Point p3() { return e1.next.p2.p; }
+ public Vertex v1() { return e1.v1; }
+ public Vertex v2() { return e1.v2; }
+ public Vertex v3() { return e1.next.v2; }
+ public Point p1() { return e1.v1.p; }
+ public Point p2() { return e1.v2.p; }
+ public Point p3() { return e1.next.v2.p; }
public boolean hasE(E e) { return e1==e || e1.next==e || e1.prev==e; }
public boolean has(Vertex v) { return v1()==v || v2()==v || v3()==v; }
projects / anneal.git / commitdiff