public int numedges = 0;
public float avgedge = 0;
- public void unbind() {
+ public void rebindPoints() {
+ // unbind all points
for(Mesh.T t : this) {
t.v1().unbind();
t.v2().unbind();
t.v3().unbind();
}
- }
-
- public void bind() {
+ // ask edges to re-implement their bindings
for(Mesh.T t : this) {
t.e1().dobind();
t.e2().dobind();
}
}
- public float rescore() {
+ public void unscoreAll() {
+ HashSet<Vert> done = new HashSet<Vert>();
+ for(T t : this)
+ for(Vert p : new Vert[] { t.v1(), t.v2(), t.v3() }) {
+ if (done.contains(p)) continue;
+ done.add(p);
+ p.unscore();
+ }
+ }
+ public void recomputeAllFundamentalQuadrics() {
+ HashSet<Vert> done = new HashSet<Vert>();
+ for(T t : this)
+ for(Vert p : new Vert[] { t.v1(), t.v2(), t.v3() }) {
+ if (done.contains(p)) continue;
+ done.add(p);
+ p.recomputeFundamentalQuadric();
+ }
+ }
+ public float rescoreAll() {
int num = 0;
double dist = 0;
HashSet<Vert> done = new HashSet<Vert>();
if (done.contains(p)) continue;
done.add(p);
p.rescore();
+
}
return (float)(dist/num);
}
public Point p;
E e; // some edge *leaving* this point
+ /** the nearest vertex in the "score_against" mesh */
+ Vert nearest_in_other_mesh;
+ /** the number of vertices in the other mesh for which this is the nearest_in_other_mesh */
+ int quadric_count;
+ /** the total error quadric (contributions from all vertices in other mesh for which this is nearest) */
+ Matrix quadric = Matrix.ZERO;
+
Vert bound_to = this;
- int watch_count;
- float watch_x;
- float watch_y;
- float watch_z;
- Vert watch;
Matrix binding = new Matrix();
float oldscore = 0;
- boolean inserted = false;
- public Matrix quadric() {
- Matrix m = new Matrix(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0);
+ public Matrix errorQuadric() { return quadric; }
+ public Point getPoint() { return p; }
+ public float score() { return oldscore; }
+
+ private Matrix fundamentalQuadric = null;
+ public Matrix fundamentalQuadric() {
+ if (fundamentalQuadric == null) recomputeFundamentalQuadric();
+ return fundamentalQuadric;
+ }
+
+ private Vert(Point p) {
+ this.p = p;
+ if (pointset.get(p) != null) throw new Error();
+ pointset.add(this);
+ }
+
+ public void recomputeFundamentalQuadric() {
+ unscore();
+ Matrix m = Matrix.ZERO;
E e = this.e;
do {
T t = e.t;
m = m.plus(t.norm().fundamentalQuadric(t.centroid()));
e = e.pair.next;
} while(e != this.e);
- return m;
+ fundamentalQuadric = m;
+ rescore();
}
- public Point getPoint() { return p; }
- private Vert(Point p) {
- this.p = p;
- if (pointset.get(p) != null) throw new Error();
- pointset.add(this);
- }
- public float score() { return oldscore; }
public void unscore() {
- if (watch == null) return;
- watch.watch_x -= p.x;
- watch.watch_y -= p.y;
- watch.watch_z -= p.z;
- watch.watch_count--;
- if (watch.watch_count==0) {
- watch.watch_x = 0;
- watch.watch_y = 0;
- watch.watch_z = 0;
- }
- watch = null;
+ if (nearest_in_other_mesh == null) return;
+ if (fundamentalQuadric == null) return;
+ nearest_in_other_mesh.unsc();
+ nearest_in_other_mesh.quadric = nearest_in_other_mesh.quadric.minus(fundamentalQuadric);
+ nearest_in_other_mesh.quadric_count--;
+ if (nearest_in_other_mesh.quadric_count==0)
+ nearest_in_other_mesh.quadric = Matrix.ZERO;
+ nearest_in_other_mesh.resc();
+ nearest_in_other_mesh = null;
+ }
+
+ public void unsc() {
+ score -= oldscore;
+ oldscore = 0;
}
- public Vert partner() { return watch==null ? this : watch; }
- public Point watchback() { return watch_count==0 ? partner().p :
- new Point(watch_x/watch_count, watch_y/watch_count, watch_z/watch_count); }
public void rescore() {
if (score_against == null) return;
- score -= oldscore;
- oldscore = 0;
+ unsc();
- if (watch != null) unscore();
- Vert po = this;
- if (watch == null) {
- watch = score_against.nearest(po.p);
+ if (nearest_in_other_mesh != null) unscore();
+ if (nearest_in_other_mesh == null) {
+ nearest_in_other_mesh = score_against.nearest(p);
// don't attract to vertices that face the other way
- if (watch.e == null || watch.norm().dot(norm()) < 0) {
- watch = null;
+ if (nearest_in_other_mesh.e == null || nearest_in_other_mesh.norm().dot(norm()) < 0) {
+ nearest_in_other_mesh = null;
} else {
- watch.watch_x += po.p.x;
- watch.watch_y += po.p.y;
- watch.watch_z += po.p.z;
- watch.watch_count++;
+ nearest_in_other_mesh.unsc();
+ nearest_in_other_mesh.quadric = nearest_in_other_mesh.quadric.plus(fundamentalQuadric());
+ nearest_in_other_mesh.quadric_count++;
+ nearest_in_other_mesh.resc();
}
}
- double s1, s2;
- if (watch_count==0) s1 = 0;
- else s1 = p.distance(watch_x/watch_count, watch_y/watch_count, watch_z/watch_count);
- s2 = watch==null ? 0 : po.p.distance(watch.p);
- oldscore = (float)(s1 + s2);
+ resc();
+ }
+ public void resc() {
+ oldscore = quadric_count == 0 ? 0 : (quadric.preAndPostMultiply(p) / quadric_count);
score += oldscore;
}
throw new RuntimeException(e);
}
rescore();
- boolean good = true;
- /*
- for(T t : this) {
- for(E e = this.e; ;) {
- if (e.intersects(t)) { good = false; break; }
- e = e.pair.next;
- if (e == this.e) break;
- }
- }
- */
- /*
- if (t==this.t) continue;
- if (this.intersects(t)) good = false;
- }
- */
- return good;
+
+ // should recompute fundamental quadrics of all vertices sharing a face, but we defer...
+ // FIXME: intersection test needed?
+ return true;
}
+
public boolean move(Vec v) {
Matrix m = new Matrix(v);
Vert p = this;
boolean good = true;
do {
good &= p.transform(m);
- v = v.times(binding); // bleh wrong
p = p.bound_to;
} while (p != this);
return good;
return null;
}
+ public Vec norm() {
+ Vec norm = new Vec(0, 0, 0);
+ E e = this.e;
+ do {
+ if (e.t != null) norm = norm.plus(e.t.norm().times((float)e.prev.angle()));
+ e = e.pair.next;
+ } while(e != this.e);
+ return norm.norm();
+ }
+
public boolean isBoundTo(Vert p) {
Vert px = p;
do {
} while(px != p);
return false;
}
-
public void unbind() { bound_to = this; binding = new Matrix(); }
public void bind(Vert p) { bind(p, new Matrix()); }
public void bind(Vert p, Matrix binding) {
this.bound_to = temp_bound_to;
this.binding = temp_binding.times(temp_binding); // FIXME: may have order wrong here
}
- public Vec norm() {
- Vec norm = new Vec(0, 0, 0);
- E e = this.e;
- do {
- if (e.t != null) norm = norm.plus(e.t.norm().times((float)e.prev.angle()));
- e = e.pair.next;
- } while(e != this.e);
- return norm.norm();
- }
}
/** [UNIQUE] an edge */
projects / anneal.git / blobdiff