public static final float EPSILON = (float)0.0001;
public static final Random random = new Random();
- private RTree<T> tris = new RTree<T>();
- private PointSet<Vertex> vertices = new PointSet<Vertex>();
+ private RTree<T> triangles = new RTree<T>();
+ private PointSet<Vertex> vertices = new PointSet<Vertex>();
public boolean immutableVertices;
public boolean ignorecollision = false;
- public Mesh score_against = null;
- public double score = 0;
+ public Mesh score_against = null;
+ public double score = 0;
public Mesh(boolean immutableVertices) { this.immutableVertices = immutableVertices; }
public int size() { return vertices.size(); }
public Iterable<Vertex> vertices() { return vertices; }
- public Iterator<T> iterator() { return tris.iterator(); }
+ public Iterator<T> iterator() { return triangles.iterator(); }
public void rebindPoints() {
// unbind all points
// Vertexices //////////////////////////////////////////////////////////////////////////////
- public final class Vertex extends HasPoint {
+ /** a vertex in the mesh */
+ public final class Vertex extends HasPoint implements Visitor<T> {
public String toString() { return p.toString(); }
public Point p;
E e; // some edge *leaving* this point
}
public void recomputeFundamentalQuadric() {
- //if (!quadricStale && fundamentalQuadric != null) return;
+ if (!quadricStale && fundamentalQuadric != null) return;
quadricStale = false;
unApplyQuadricToNeighbor();
Matrix m = Matrix.ZERO;
- E e = this.e;
int count = 0;
- do {
+ 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++;
- e = e.pair.next;
- } while(e != this.e);
+ }
fundamentalQuadric = m.times(1/(float)count);
applyQuadricToNeighbor();
}
public void reComputeErrorAround() {
reComputeError();
if (nearest_in_other_mesh != null) nearest_in_other_mesh.reComputeError();
- E e = this.e;
- do {
+ for(E e = this.e; e!=null; e=e.pair.next==this.e?null:e.pair.next)
e.p2.reComputeError();
- e = e.pair.next;
- } while (e != this.e);
}
public void reComputeError() {
unComputeError();
int numaspects = 0;
float aspects = 0;
- E e = this.e;
- do {
+ for(E e = this.e; e!=null; e=e.pair.next==this.e?null:e.pair.next) {
//double ang = Math.abs(e.crossAngle());
double ang = Math.abs(e.crossAngle());
if (ang > Math.PI) throw new Error();
/*
- if (e.t != null) {
- numaspects++;
- aspects += e.t.aspect()*e.t.aspect();
- }
+ if (e.t != null) {
+ numaspects++;
+ aspects += e.t.aspect()*e.t.aspect();
+ }
*/
float minangle = (float)(Math.PI * 0.8);
if (ang > minangle)
oldscore += (ang - minangle);
-
- e = e.pair.next;
- } while (e != this.e);
+ }
if (numaspects > 0) oldscore += (aspects / numaspects);
//System.out.println(oldscore);
}
private void removeTrianglesFromRTree() {
- E e = this.e;
- do {
+ for(E e = this.e; e!=null; e=e.pair.next==this.e?null:e.pair.next)
if (e.t != null) e.t.removeFromRTree();
- e = e.pair.next;
- } while(e != this.e);
}
private void addTrianglesToRTree() {
- E e = this.e;
- do {
+ for(E e = this.e; e!=null; e=e.pair.next==this.e?null:e.pair.next)
if (e.t != null) e.t.addToRTree();
- e = e.pair.next;
- } while(e != this.e);
}
/** does NOT update bound pairs! */
public boolean transform(Matrix m) {
if (immutableVertices) throw new Error();
+
unApplyQuadricToNeighbor();
Point oldp = this.p;
- try {
- if (vertices.get(this.p)==null) throw new Error();
- vertices.remove(this);
- removeTrianglesFromRTree();
- float newx = m.a*p.x + m.b*p.y + m.c*p.z + m.d;
- float newy = m.e*p.x + m.f*p.y + m.g*p.z + m.h;
- float newz = m.i*p.x + m.j*p.y + m.k*p.z + m.l;
- this.p = new Point(newx, newy, newz);
- addTrianglesToRTree();
- vertices.add(this);
- } catch (Exception e) {
- throw new RuntimeException(e);
- }
+
+ if (vertices.get(this.p)==null) throw new Error();
+ vertices.remove(this);
+ removeTrianglesFromRTree();
+ float newx = m.a*p.x + m.b*p.y + m.c*p.z + m.d;
+ float newy = m.e*p.x + m.f*p.y + m.g*p.z + m.h;
+ float newz = m.i*p.x + m.j*p.y + m.k*p.z + m.l;
+ this.p = new Point(newx, newy, newz);
+ addTrianglesToRTree();
+ vertices.add(this);
+
applyQuadricToNeighbor();
- // FIXME: intersection test needed?
good = true;
- // should recompute fundamental quadrics of all vertices sharing a face, but we defer...
- E e = this.e;
- do {
- /*
- if (Math.abs(e.crossAngle()) > (Math.PI * 0.9) ||
- Math.abs(e.next.crossAngle()) > (Math.PI * 0.9)) {
- good = false;
- }
- if (e.t.aspect() < 0.1) {
- good = false;
- }
- */
+ for(E e = this.e; e!=null; e=e.pair.next==this.e?null:e.pair.next) {
+ if (Math.abs(e.crossAngle()) > (Math.PI * 0.9) || Math.abs(e.next.crossAngle()) > (Math.PI * 0.9)) good = false;
+ if (e.t.aspect() < 0.1) good = false;
e.p2.quadricStale = true;
- e = e.pair.next;
- } while(e != this.e);
-
-
- if (!ignorecollision && good) {
-
- tris.range(new Segment(oldp, this.p),
- new Visitor<T>() {
- public void visit(T t) {
- if (!good) return;
- E e = Vertex.this.e;
- do {
- if (!t.has(e.p1) && !t.has(e.p2) && e.intersects(t)) { good = false; }
- if (e.t != null) {
- if (!e.t.has(t.e1().p1) && !e.t.has(t.e1().p2) && t.e1().intersects(e.t)) { good = false; }
- if (!e.t.has(t.e2().p1) && !e.t.has(t.e2().p2) && t.e2().intersects(e.t)) { good = false; }
- if (!e.t.has(t.e3().p1) && !e.t.has(t.e3().p2) && t.e3().intersects(e.t)) { good = false; }
- }
- e = e.pair.next;
- } while(e != Vertex.this.e);
- }
- });
-
- /*
- for(T t : Mesh.this) {
- if (!good) break;
- e = this.e;
- do {
- if (!t.has(e.p1) && !t.has(e.p2) && e.intersects(t)) { good = false; break; }
- if (e.t != null) {
- if (!e.t.has(t.e1().p1) && !e.t.has(t.e1().p2) && t.e1().intersects(e.t)) { good = false; break; }
- if (!e.t.has(t.e2().p1) && !e.t.has(t.e2().p2) && t.e2().intersects(e.t)) { good = false; break; }
- if (!e.t.has(t.e3().p1) && !e.t.has(t.e3().p2) && t.e3().intersects(e.t)) { good = false; break; }
- }
- e = e.pair.next;
- } while(e != this.e);
- }
- */
}
+ if (!ignorecollision && good) triangles.range(oldp, this.p, (Visitor<T>)this);
reComputeErrorAround();
return good;
}
+
+ public void visit(T t) {
+ if (!good) return;
+ 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)) { good = false; }
+ if (e.t != null) {
+ if (!e.t.has(t.e1().p1) && !e.t.has(t.e1().p2) && t.e1().intersects(e.t)) { good = false; }
+ if (!e.t.has(t.e2().p1) && !e.t.has(t.e2().p2) && t.e2().intersects(e.t)) { good = false; }
+ if (!e.t.has(t.e3().p1) && !e.t.has(t.e3().p2) && t.e3().intersects(e.t)) { good = false; }
+ }
+ }
+ }
private boolean good;
public boolean move(Vec v) {
Vertex nearest = score_against.nearest(midpoint());
//if (t==null) return length();
/*
- double ang = Math.abs(crossAngle());
- float minangle = (float)(Math.PI * 0.9);
- if (ang > minangle)
- return 300;
+ double ang = Math.abs(crossAngle());
+ float minangle = (float)(Math.PI * 0.9);
+ if (ang > minangle)
+ return 300;
*/
/*
- if ((length() * length()) / t.area() > 10)
- return (float)(length()*Math.sqrt(t.area()));
- return length()*t.area();
+ if ((length() * length()) / t.area() > 10)
+ return (float)(length()*Math.sqrt(t.area()));
+ return length()*t.area();
*/
return (float)Math.max(length(), midpoint().distance(nearest.p));
//return length();
public final int color;
public final int colorclass;
- public void removeFromRTree() { tris.remove(this); }
- public void addToRTree() { tris.insert(this); }
+ public void removeFromRTree() { triangles.remove(this); }
+ public void addToRTree() { triangles.insert(this); }
- public void destroy() { tris.remove(this); }
+ public void destroy() { triangles.remove(this); }
T(E e1, int colorclass) {
this.e1 = e1;
}
this.color = color;
this.colorclass = colorclass;
- tris.add(this);
+ triangles.add(this);
}
public E e1() { return e1; }
public E e2() { return e1.next; }
projects / anneal.git / blobdiff