package edu.berkeley.qfat.geom;
import javax.media.opengl.*;
import java.util.*;
+import edu.berkeley.qfat.Mesh;
public abstract class HasBindingGroup {
- BindingGroup bindingGroup;
+ public BindingGroup bindingGroup;
// know: self = bindingGroup[self] * master
// know: other = other.bindingGroup[other] * other.bindingGroup.master
if (other.bindingGroup == this.bindingGroup) {
if (getBindingMatrix(other).equals(bindingMatrix))
return;
- throw new Error("rebind attempt: "+this+" and "+other+" with "
- + bindingMatrix
- + "; expected "
- + getBindingMatrix(other));
+ /*
+ if (this instanceof Mesh.E)
+ throw new Error("rebind attempt: "+this+" and "+other+" with "
+ + bindingMatrix
+ + "; expected "
+ + getBindingMatrix(other));
+ */
+ setConstraint(bindingMatrix);
+ /*
+ System.err.println("WARNING: discarding rebind attempt: "+this+" and "+other+m);
+ */
+ //" with "
+ //+ bindingMatrix
+ //+ "; expected "
+ //+ getBindingMatrix(other));
+ return;
}
+
bindingMatrix =
getBindingMatrix().inverse()
.times(bindingMatrix)
other.bindingGroup.merge(bindingGroup, bindingMatrix);
}
+ public int bindingGroupSize() {
+ if (bindingGroup == null) return 1;
+ return bindingGroup.size();
+ }
+
+
public Matrix getBindingMatrix() {
if (bindingGroup==null) return Matrix.ONE;
return bindingGroup.getMatrix(this);
}
public Matrix getBindingMatrix(HasBindingGroup other) {
+ if (other==this) return Matrix.ONE;
return bindingGroup.getMatrix(this, other);
}
return bindingGroup.getMaster();
}
+ public Matrix getConstraint() {
+ if (bindingGroup==null) return Matrix.ONE;
+ Matrix v = getBindingMatrix(getMaster());
+ return v.inverse().times(bindingGroup.krank).times(v);
+ }
+ public void setConstraint(Matrix m) {
+ if (bindingGroup==null) bindingGroup = new BindingGroup(this);
+ Matrix v = getBindingMatrix(getMaster());
+ bindingGroup.krank = bindingGroup.krank.times(v.inverse().times(m).times(v));
+ }
+
public void unbind() {
if (bindingGroup==null) return;
bindingGroup.unbind(this);
}
public boolean isBoundTo(HasBindingGroup t) {
- return bindingGroup.contains(t);
+ return t==this || (bindingGroup!=null && bindingGroup.contains(t));
}
public Iterable getBoundPeers() {