How to use

intersect

method

in

org.scijava.java3d.Shape3D

/**
 * Checks whether the geometry in this shape node intersects with
 * the specified pickShape.
 *
 * @param path the SceneGraphPath to this shape node
 * @param pickShape the PickShape to be intersected
 *
 * @return true if the pick shape intersects this node; false
 * otherwise.
 *
 * @exception IllegalArgumentException if pickShape is a PickPoint.
 * Java 3D doesn't have spatial information of the surface.
 * Use PickBounds with BoundingSphere and a small radius, instead.
 *
 * @exception CapabilityNotSetException if the Geometry.ALLOW_INTERSECT
 * capability bit is not set in all of the Geometry objects
 * referred to by this shape node.
 */
public boolean intersect(SceneGraphPath path, PickShape pickShape) {
return intersect(path, pickShape, null);
}

private SceneGraphPath pickGeomAny(int xpos, int ypos)
 {
  Node obj;
  int i;
  pickRay = (PickRay) generatePickRay(xpos, ypos);
  sceneGraphPathArr = pickRoot.pickAll(pickRay);
  for(i=0; i<sceneGraphPathArr.length; i++) {
   obj = sceneGraphPathArr[i].getObject();
 if(obj instanceof Shape3D) {
  if(((Shape3D) obj).intersect(sceneGraphPathArr[i],(PickShape) pickRay))
   return sceneGraphPathArr[i];
 } else if(obj instanceof Morph) {
  if(((Morph) obj).intersect(sceneGraphPathArr[i],(PickShape) pickRay))
   return sceneGraphPathArr[i];
 }
  }
  return null;
 }

  obj = sceneGraphPathArr[i].getObject();
if(obj instanceof Shape3D) {
 found[i] = ((Shape3D) obj).intersect(sceneGraphPathArr[i],
            (PickShape) pickRay);
} else if(obj instanceof Morph) {

private PickResult pickGeomAny (PickShape pickShape) {
Node obj = null;
int i;
SceneGraphPath[] sgpa = null;
if (pickRootBG != null) {
  sgpa = pickRootBG.pickAll(pickShape);
} else if (pickRootL != null) {
  sgpa = pickRootL.pickAll(pickShape);
}
if (sgpa == null) return null; // no match
for(i=0; i<sgpa.length; i++) {
  obj = sgpa[i].getObject();
  PickResult pr = new PickResult(sgpa[i], pickShape);
  if(obj instanceof Shape3D) {
  if(((Shape3D) obj).intersect(sgpa[i], pickShape)) {
    return pr;
  }
  } else if (obj instanceof Morph) {
  if(((Morph) obj).intersect(sgpa[i], pickShape)){
    return pr;
  }
  }
}
return null;
}

found[i] = ((Shape3D) obj[i]).intersect(sgp[i], pickShape);
} else if (obj[i] instanceof Morph) {
found[i] = ((Morph) obj[i]).intersect(sgp[i], pickShape);

  obj = sceneGraphPathArr[i].getObject();
if(obj instanceof Shape3D) {
 found[i] = ((Shape3D) obj).intersect(sceneGraphPathArr[i],
            pickRay, dist);
 distArr[i] = dist[0];

pr[i] = new PickResult (sgp[i], pickShape);
if (obj[i] instanceof Shape3D) {
found[i] = ((Shape3D)obj[i]).intersect(sgp[i], pickShape,
            dist);
distArr[i] = dist[0];