public static float EPSILON = (float)0.0001;
public static Random random = new Random();
- private HashMap<P,P> ps = new HashMap<P,P>();
- //public PriorityQueue<E> es = new PriorityQueue<E>();
- public HashSet<E> es = new HashSet<E>();
- //private HashSet<T> ts = new HashSet<T>();
- public ArrayList<T> ts = new ArrayList<T>();
+ private HashMap<P,V> ps = new HashMap<P,V>();
+ public HashSet<E> es = new HashSet<E>();
+ public ArrayList<T> ts = new ArrayList<T>();
public Iterator<T> iterator() { return ts.iterator(); }
public float rescore() {
int num = 0;
double dist = 0;
- HashSet<P> done = new HashSet<P>();
+ HashSet<V> done = new HashSet<V>();
for(T t : ts)
- for(P p : new P[] { t.p1(), t.p2(), t.p3() }) {
+ for(V p : new V[] { t.p1(), t.p2(), t.p3() }) {
if (done.contains(p)) continue;
done.add(p);
p.rescore();
}
for(T t : ts)
- for(P p : new P[] { t.p1(), t.p2(), t.p3() })
+ for(V p : new V[] { t.p1(), t.p2(), t.p3() })
p.kdremove();
kd = new KDTree(3);
for(T t : ts)
- for(P p : new P[] { t.p1(), t.p2(), t.p3() })
+ for(V p : new V[] { t.p1(), t.p2(), t.p3() })
p.kdinsert();
return (float)(dist/num);
}
public void transform(M m) {
- ArrayList<P> set = new ArrayList<P>();
- set.addAll(ps.keySet());
- for(P p : set) p.transform(m);
+ ArrayList<V> set = new ArrayList<V>();
+ set.addAll(ps.values());
+ for(V v : set) v.transform(m);
}
- public V diagonal() {
+ public Vec diagonal() {
float min_x = Float.MAX_VALUE;
float min_y = Float.MAX_VALUE;
float min_z = Float.MAX_VALUE;
if (p.y > max_y) max_y = p.y;
if (p.z > max_z) max_z = p.z;
}
- return new V(max_x - min_x, max_y - min_y, max_z - min_z);
+ return new Vec(max_x - min_x, max_y - min_y, max_z - min_z);
}
public P centroid() {
public P newP(double x, double y, double z) { return newP((float)x, (float)y, (float)z); }
public P newP(float x, float y, float z) { return new P(x, y, z); }
- public T newT(P p12, P p23, P p31, V norm) {
- V norm2 = p31.minus(p12).cross(p23.minus(p12));
+ public T newT(V p12, V p23, V p31, Vec norm) {
+ Vec norm2 = p31.minus(p12).cross(p23.minus(p12));
float dot = norm.dot(norm2);
//if (Math.abs(dot) < EPSILON) throw new Error("dot products within epsilon of each other: "+norm+" "+norm2);
- if (dot < 0) { P p = p12; p12=p23; p23 = p; }
+ if (dot < 0) { V p = p12; p12=p23; p23 = p; }
return newT(p12, p23, p31);
}
double total = 0;
for(T t : ts) {
double area = t.area();
- V origin_to_centroid = new V(newP(0, 0, 0), t.centroid());
+ Vec origin_to_centroid = new Vec(newP(0, 0, 0), t.centroid());
boolean facingAway = t.norm().dot(origin_to_centroid) > 0;
double height = Math.abs(t.norm().dot(origin_to_centroid));
total += ((facingAway ? 1 : -1) * area * height) / 3.0;
return (P)results[0];
}
- public T newT(P p1, P p2, P p3) {
+ public T newT(V p1, V p2, V p3) {
p1 = p1.register();
p2 = p2.register();
p3 = p3.register();
return ret;
}
- private char allname = 'A';
-
- public M aspect = new M();
- public M invaspect = new M();
-
- /** [UNIQUE] point in 3-space */
- public final class P {
- char name;
-
- float x, y, z;
-
- int watch_count;
- float watch_x;
- float watch_y;
- float watch_z;
- P watch;
-
- private E e; // some edge *leaving* this point
- private M binding = new M();
- private P bound_to = this;
-
- private float oldscore = 0;
-
- private boolean inserted = false;
-
- public P register() {
- P p2 = ps.get(this);
- if (p2==null) { p2 = this; ps.put(this,this); name = allname++; }
- return p2;
+ public final class V extends P {
+ public P p = this;
+ public V(P p) {
+ super(p.x, p.y, p.z);
+ if (ps.get(p) != null) throw new Error();
+ this.p = p;
+ ps.put(this.p, this);
}
-
+ /*
+ public int hashCode() {
+ throw new Error();
+ }
+ */
public void kdremove() {
if (!inserted) return;
inserted = false;
- P p = this;
try { kd.delete(new double[]{p.x,p.y,p.z}); } catch (Exception e) { }
}
public void kdinsert() {
if (inserted) return;
inserted = true;
- P p = this;
try { kd.insert(new double[]{p.x,p.y,p.z},this); } catch (Exception e) { throw new Error(e); }
}
}
watch = null;
}
- public P times(M m) { return m.times(this); }
- public P partner() {
- if (watch==null) return this;
- return watch.times(score_against.aspect).times(invaspect);
- }
- public P watchback() {
- if (watch_count==0) return partner();
- return newP(watch_x/watch_count, watch_y/watch_count, watch_z/watch_count);
- }
+ public V partner() { return watch==null ? this : watch; }
+ public V watchback() { return watch_count==0 ? partner() :
+ newP(watch_x/watch_count, watch_y/watch_count, watch_z/watch_count).register(); }
public void rescore() {
if (score_against == null) return;
oldscore = 0;
if (watch != null) unscore();
- P po = this.times(aspect).times(score_against.invaspect);
+ V po = this;
if (watch == null) {
- watch = score_against.nearest(po);
+ watch = (V)score_against.nearest(po);
// don't attract to vertices that face the other way
- if (watch.norm().times(score_against.aspect).times(invaspect).dot(norm()) < 0) {
+ if (watch.norm().dot(norm()) < 0) {
watch = null;
} else {
watch.watch_x += po.x;
score += oldscore;
}
- public float distance(P p) { return distance(p.x, p.y, p.z); }
- public float distance(float ox, float oy, float oz) {
- return
- (float)Math.sqrt((x-ox)*(x-ox)+
- (y-oy)*(y-oy)+
- (z-oz)*(z-oz));
- }
/** does NOT update bound pairs! */
public boolean transform(M m) {
// FIXME: screws up hashmap
unscore();
try {
- if (ps.get(this)==null) throw new Error();
- ps.remove(this);
- float newx = m.a*x + m.b*y + m.c*z + m.d;
- float newy = m.e*x + m.f*y + m.g*z + m.h;
- float newz = m.i*x + m.j*y + m.k*z + m.l;
+ if (ps.get(this.p)==null) throw new Error();
+ ps.remove(this.p);
+ 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.x = newx;
this.y = newy;
this.z = newz;
+ this.p = new P(newx, newy, newz);
// FIXME: what if we move onto exactly where another point is?
- ps.put(this,this);
+ ps.put(this.p,(V)this);
} catch (Exception e) {
throw new RuntimeException(e);
}
*/
return good;
}
- public boolean move(V v) {
+ public boolean move(Vec v) {
M m = new M(v);
- P p = this;
+ V p = this;
boolean good = true;
do {
good &= p.transform(m);
return good;
}
- public E makeE(P p2) {
- p2 = p2.register();
+ public E makeE(V p2) {
E e = getE(p2);
if (e != null) return e;
e = p2.getE(this);
return null;
}
- public E getE(P p2) {
+ public E getE(V p2) {
p2 = p2.register();
E e = this.e;
do {
return null;
}
- public boolean isBoundTo(P p) {
+ public boolean isBoundTo(V p) {
p = p.register();
- P px = p;
+ V px = p;
do {
if (px==this) return true;
px = px.bound_to;
}
public void unbind() { bound_to = this; binding = new M(); }
- public void bind(P p) { bind(p, new M()); }
- public void bind(P p, M binding) {
+ public void bind(V p) { bind(p, new M()); }
+ public void bind(V p, M binding) {
p = p.register();
if (isBoundTo(p)) return;
- P temp_bound_to = p.bound_to;
+ V temp_bound_to = p.bound_to;
M 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 P(float x, float y, float z) {
- this.x = x; this.y = y; this.z = z;
+ 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();
}
+ V bound_to = this;
- public V minus(P p) { return new V(x-p.x, y-p.y, z-p.z); }
- public P plus(V v) { return newP(x+v.x, y+v.y, z+v.z); }
- public boolean equals(Object o) {
- if (o==null || !(o instanceof P)) return false;
- P p = (P)o;
- return p.x==x && p.y==y && p.z==z;
- }
+ int watch_count;
+ float watch_x;
+ float watch_y;
+ float watch_z;
+ V watch;
+ E e; // some edge *leaving* this point
+ M binding = new M();
+ float oldscore = 0;
+ boolean inserted = false;
+ }
+
+ public class P {
+ float x, y, z;
+ public P(float x, float y, float z) { this.x = x; this.y = y; this.z = z; }
+ public float distance(P p) { return distance(p.x, p.y, p.z); }
+ public float distance(float ox, float oy, float oz) { return (float)Math.sqrt((x-ox)*(x-ox)+(y-oy)*(y-oy)+(z-oz)*(z-oz)); }
+ public V register() { V v = ps.get(this); return v==null ? new V(this) : v; }
+ public P times(M m) { return m.times(this); }
+ public Vec minus(P p) { return new Vec(x-p.x, y-p.y, z-p.z); }
+ public P plus(Vec v) { return newP(x+v.x, y+v.y, z+v.z); }
+ public boolean equals(Object o) { return o!=null && (o instanceof P) && ((P)o).x==x && ((P)o).y==y && ((P)o).z==z; }
+ public void glVertex(GL gl) { _glVertex(gl); }
+ private void _glVertex(GL gl) { gl.glVertex3f(x, y, z); }
+ public String toString() { return "("+x+","+y+","+z+")"; }
// FIXME: moving a point alters its hashCode
public int hashCode() {
return
Float.floatToIntBits(y) ^
Float.floatToIntBits(z);
}
- public void glVertex(GL gl) {
- this.times(aspect)._glVertex(gl);
- }
- private void _glVertex(GL gl) {
- gl.glVertex3f(x, y, z);
- }
- public String toString() { return "("+x+","+y+","+z+")"; }
- public V norm() {
- V norm = new V(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();
- }
}
/** vector in 3-space */
- public final class V {
+ public final class Vec {
public final float x, y, z;
- public V(double x, double y, double z) { this((float)x, (float)y, (float)z); }
- public V(float x, float y, float z) { this.x = x; this.y = y; this.z = z; }
- public V(P p1, P p2) { this(p2.x-p1.x, p2.y-p1.y, p2.z-p1.z); }
- public V cross(V v) { return new V(y*v.z-z*v.y, z*v.x-x*v.z, x*v.y-y*v.x); }
- public V plus(V v) { return new V(x+v.x, y+v.y, z+v.z); }
- public V norm() { return mag()==0 ? this : div(mag()); }
- public V times(M m) { return m.apply(this); }
+ public Vec(double x, double y, double z) { this((float)x, (float)y, (float)z); }
+ public Vec(float x, float y, float z) { this.x = x; this.y = y; this.z = z; }
+ public Vec(P p1, P p2) { this(p2.x-p1.x, p2.y-p1.y, p2.z-p1.z); }
+ public Vec cross(Vec v) { return new Vec(y*v.z-z*v.y, z*v.x-x*v.z, x*v.y-y*v.x); }
+ public Vec plus(Vec v) { return new Vec(x+v.x, y+v.y, z+v.z); }
+ public Vec norm() { return mag()==0 ? this : div(mag()); }
+ public Vec times(M m) { return m.apply(this); }
public float mag() { return (float)Math.sqrt(x*x+y*y+z*z); }
- public float dot(V v) { return x*v.x + y*v.y + z*v.z; }
- public V times(float mag) { return new V(x*mag, y*mag, z*mag); }
- public V div(float mag) { return new V(x/mag, y/mag, z/mag); }
+ public float dot(Vec v) { return x*v.x + y*v.y + z*v.z; }
+ public Vec times(float mag) { return new Vec(x*mag, y*mag, z*mag); }
+ public Vec div(float mag) { return new Vec(x/mag, y/mag, z/mag); }
public String toString() { return "<"+x+","+y+","+z+">"; }
}
return e.length() > length() ? 1 : -1;
}
- public final P p1, p2;
+ public final V p1, p2;
T t; // triangle to our "left"
E prev; // previous half-edge
E next; // next half-edge
}
boolean shattered = false;
- public P shatter() { return shatter(midpoint(), null, null); }
- public P shatter(P mid, BindingGroup bg1, BindingGroup bg2) {
+ public V shatter() { return shatter(midpoint().register(), null, null); }
+ public V shatter(V mid, BindingGroup bg1, BindingGroup bg2) {
mid = mid.register();
if (shattered) return mid;
shattered = true;
- P r = next.p2;
+ V r = next.p2;
E next = this.next;
E prev = this.prev;
if (bg1==null) bg1 = new BindingGroup();
if (bg2==null) bg2 = new BindingGroup();
- for(E e : bg.es) e.shatter(e.midpoint(), bg1, bg2);
+ for(E e : bg.es) e.shatter(e.midpoint().register(), bg1, bg2);
pair.shatter();
destroy();
/** angle between this half-edge and the next */
public double angle() {
- V v1 = next.p2.minus(p2);
- V v2 = this.p1.minus(p2);
+ Vec v1 = next.p2.minus(p2);
+ Vec v2 = this.p1.minus(p2);
return Math.acos(v1.norm().dot(v2.norm()));
}
}
/** creates an isolated edge out in the middle of space */
- public E(P p1, P p2) {
+ public E(V p1, V p2) {
p1 = p1.register();
p2 = p2.register();
if (p1==p2) throw new Error("attempt to create edge with single vertex: " + p1);
}
/** adds a new half-edge from prev.p2 to p2 */
- public E(E prev, P p2) {
+ public E(E prev, V p2) {
p2 = p2.register();
this.p1 = prev.p2;
this.p2 = p2;
this.color = color;
}
- public P p1() { return e1.p1; }
- public P p2() { return e1.p2; }
- public P p3() { return e1.next.p2; }
+ public V p1() { return e1.p1; }
+ public V p2() { return e1.p2; }
+ public V p3() { return e1.next.p2; }
public E e1() { return e1; }
public E e2() { return e1.next; }
public E e3() { return e1.prev; }
- public V norm() { return p2().minus(p1()).cross(p3().minus(p1())).norm(); }
+ public Vec norm() { return p2().minus(p1()).cross(p3().minus(p1())).norm(); }
public boolean hasE(E e) { return e1==e || e1.next==e || e1.prev==e; }
public boolean has(P p) { return p1()==p || p2()==p || p3()==p; }
public float area() {
- return (float)Math.abs(0.5 * e1().length() * new V(p1(), p2()).norm().dot(new V(p2(), p3())));
+ return (float)Math.abs(0.5 * e1().length() * new Vec(p1(), p2()).norm().dot(new Vec(p2(), p3())));
}
public void glVertices(GL gl) {
k = scalez;
l = h = d = e = b = i = c = j = g = 0;
}
- public M(V translate) {
+ public M(Vec translate) {
d = translate.x; h = translate.y; l = translate.z;
a = f = k = 1;
b = c = e = g = i = j = 0;
public M times(float x) {
return new M(a*x, b*x, c*x, d*x, e*x, f*x, g*x, h*x, i*x, j*x, k*x, l*x);
}
- public M(V axis, float angle) {
+ public M(Vec axis, float angle) {
double q = Math.cos(angle);
double s = Math.sin(angle);
double t = 1.0 - q;
i*p.x + j*p.y + k*p.z + l);
}
public P apply(P p) { return p; }
- public V apply(V v) { return v; }
+ public Vec apply(Vec v) { return v; }
public M invert() { return this; }
public M times(M m) { return this; }
}
projects / anneal.git / blobdiff