// Vertexices //////////////////////////////////////////////////////////////////////////////
/** a vertex in the mesh */
- public final class Vertex extends HasPoint implements Visitor<T> {
+ public final class Vertex extends HasQuadric implements Visitor<T> {
public String toString() { return p.toString(); }
public Point p;
E e; // some edge *leaving* this point
- /** the nearest vertex in the "score_against" mesh */
- Vertex 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;
-
Matrix binding = Matrix.ONE;
Vertex bound_to = this;
- float oldscore = 0;
- boolean quadricStale = false;
- 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 Vertex(Point p) {
this.p = p;
if (vertices.get(p) != null) throw new Error();
}
public void recomputeFundamentalQuadric() {
- if (!quadricStale && fundamentalQuadric != null) return;
- quadricStale = false;
unApplyQuadricToNeighbor();
- Matrix m = Matrix.ZERO;
- int count = 0;
- for(E e = this.e; e!=null; e=e.pair.next==this.e?null:e.pair.next) {
- T t = e.t;
- m = m.plus(t.norm().fundamentalQuadric(t.centroid()));
- count++;
+ if (quadricStale || fundamentalQuadric==null) {
+ Matrix m = Matrix.ZERO;
+ int count = 0;
+ for(E e = this.e; e!=null; e=e.pair.next==this.e?null:e.pair.next) {
+ T t = e.t;
+ m = m.plus(t.norm().fundamentalQuadric(t.centroid()));
+ count++;
+ }
+ quadricStale = false;
+ fundamentalQuadric = m.times(1/(float)count);
}
- fundamentalQuadric = m.times(1/(float)count);
applyQuadricToNeighbor();
}
- public void unApplyQuadricToNeighbor() {
- if (nearest_in_other_mesh == null) return;
- if (fundamentalQuadric == null) return;
- nearest_in_other_mesh.unComputeError();
- 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.computeError();
- nearest_in_other_mesh = null;
- }
-
public void applyQuadricToNeighbor() {
if (score_against == null) return;
nearest_in_other_mesh = new_nearest;
// don't attract to vertices that face the other way
- if (nearest_in_other_mesh.e == null || nearest_in_other_mesh.norm().dot(norm()) < 0) {
+ if (((Vertex)nearest_in_other_mesh).e == null || ((Vertex)nearest_in_other_mesh).norm().dot(norm()) < 0) {
nearest_in_other_mesh = null;
} else {
nearest_in_other_mesh.unComputeError();
score -= oldscore;
oldscore = 0;
}
+ public HasQuadric nearest() { return score_against.nearest(p); }
public void computeError() {
oldscore =
quadric_count != 0