package edu.berkeley.qfat.geom;
import javax.media.opengl.*;
import java.util.*;
+import edu.berkeley.qfat.Mesh;
public abstract class HasBindingGroup {
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));
*/
Matrix vom = other.getBindingMatrix(bindingGroup.getMaster());
Matrix v2 = bindingMatrix;
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);