/**
* Check if the geometry component of this shape node under path intersects with the pickRay.
*
* @return true if intersected else false. If return is true, dist contains the closest distance
* of intersection.
* @exception IllegalArgumentException if <code>path</code> is invalid.
*/
boolean intersect(SceneGraphPath path, PickShape pickShape, double[] dist) {
int flags;
PickInfo pickInfo = new PickInfo();
Transform3D localToVworld = path.getTransform();
if (localToVworld == null) {
throw new IllegalArgumentException(J3dI18N.getString("Shape3DRetained3"));
}
pickInfo.setLocalToVWorldRef(localToVworld);
Shape3D shape = (Shape3D) path.getObject();
// Get the geometries for this shape only, since the compiled
// geomtryList contains several shapes
ArrayList glist = (ArrayList) geometryInfo.get(shape.id);
// System.err.println("Shape3DCompileRetained.intersect() : ");
if (dist == null) {
// System.err.println(" no dist request ....");
return intersect(pickInfo, pickShape, 0, glist);
}
flags = PickInfo.CLOSEST_DISTANCE;
if (intersect(pickInfo, pickShape, flags, glist)) {
dist[0] = pickInfo.getClosestDistance();
return true;
}
return false;
}
boolean intersect(PickInfo pickInfo, PickShape pickShape, int flags, ArrayList geometryList) {
Transform3D localToVworld = pickInfo.getLocalToVWorldRef();
Transform3D t3d = new Transform3D();
t3d.invert(localToVworld);
PickShape newPS = pickShape.transform(t3d);
int geomListSize = geometryList.size();
GeometryRetained geometry;
if (((flags & PickInfo.CLOSEST_INTERSECTION_POINT) == 0)
&& ((flags & PickInfo.CLOSEST_DISTANCE) == 0)
&& ((flags & PickInfo.CLOSEST_GEOM_INFO) == 0)
&& ((flags & PickInfo.ALL_GEOM_INFO) == 0)) {
for (int i = 0; i < geomListSize; i++) {
geometry = (GeometryRetained) geometryList.get(i);
if (geometry != null) {
if (geometry.mirrorGeometry != null) {
geometry = geometry.mirrorGeometry;
}
// Need to modify this method
// if (geometry.intersect(newPS, null, null)) {
if (geometry.intersect(newPS, null, 0, null, null, 0)) {
return true;
}
}
}
} else {
double distance;
double minDist = Double.POSITIVE_INFINITY;
Point3d closestIPnt = new Point3d();
Point3d iPnt = new Point3d();
Point3d iPntVW = new Point3d();
for (int i = 0; i < geomListSize; i++) {
geometry = (GeometryRetained) geometryList.get(i);
if (geometry != null) {
if (geometry.mirrorGeometry != null) {
geometry = geometry.mirrorGeometry;
}
if (geometry.intersect(newPS, pickInfo, flags, iPnt, geometry, i)) {
iPntVW.set(iPnt);
localToVworld.transform(iPntVW);
distance = pickShape.distance(iPntVW);
if (minDist > distance) {
minDist = distance;
closestIPnt.set(iPnt);
}
}
}
}
if (minDist < Double.POSITIVE_INFINITY) {
if ((flags & PickInfo.CLOSEST_DISTANCE) != 0) {
pickInfo.setClosestDistance(minDist);
}
if ((flags & PickInfo.CLOSEST_INTERSECTION_POINT) != 0) {
pickInfo.setClosestIntersectionPoint(closestIPnt);
}
return true;
}
}
return false;
}