Gets Harvey's changes

1 files changed, 556 insertions, 0 deletions

diff --git a/src/javax/media/j3d/LineStripArrayRetained.java b/src/javax/media/j3d/LineStripArrayRetained.java
new file mode 100644
index 0000000..861c306
--- /dev/null
+++ b/src/javax/media/j3d/LineStripArrayRetained.java
@@ -0,0 +1,556 @@
+/*
+ * Copyright 1997-2008 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+package javax.media.j3d;
+
+import javax.vecmath.Point3d;
+import javax.vecmath.Vector3d;
+
+/**
+ * The LineStripArray object draws an array of vertices as a set of
+ * connected line strips.  An array of per-strip vertex counts specifies
+ * where the separate strips appear in the vertex array.
+ * For every strip in the set, each vertex, beginning with
+ * the second vertex in the array, defines a line segment to be drawn
+ * from the previous vertex to the current vertex.
+ */
+
+class LineStripArrayRetained extends GeometryStripArrayRetained {
+
+    LineStripArrayRetained() {
+	this.geoType = GEO_TYPE_LINE_STRIP_SET;
+    }
+
+    @Override
+    boolean intersect(PickShape pickShape, PickInfo pickInfo, int flags, Point3d iPnt,
+                      GeometryRetained geom, int geomIndex) {
+	Point3d pnts[] = new Point3d[2];
+	double sdist[] = new double[1];
+	double minDist = Double.MAX_VALUE;
+	double x = 0, y = 0, z = 0;
+	int j, end;
+	int i = 0;
+	pnts[0] = new Point3d();
+	pnts[1] = new Point3d();
+        int[] vtxIndexArr = new int[2];
+
+	switch (pickShape.getPickType()) {
+	case PickShape.PICKRAY:
+	    PickRay pickRay= (PickRay) pickShape;
+
+	    while(i < stripVertexCounts.length) {
+		j = stripStartVertexIndices[i];
+		end = j + stripVertexCounts[i++];
+                vtxIndexArr[0] = j;
+		getVertexData(j++, pnts[0]);
+		while (j < end) {
+                    vtxIndexArr[1] = j;
+                    getVertexData(j++, pnts[1]);
+		    if (intersectLineAndRay(pnts[0], pnts[1], pickRay.origin,
+					    pickRay.direction, sdist,
+					    iPnt)) {
+			if (flags == 0) {
+			    return true;
+			}
+			if (sdist[0] < minDist) {
+			    minDist = sdist[0];
+                            x = iPnt.x;
+                            y = iPnt.y;
+                            z = iPnt.z;
+                            if((flags & PickInfo.CLOSEST_GEOM_INFO) != 0) {
+                                storeInterestData(pickInfo, flags, geom, geomIndex,
+                                                  vtxIndexArr, iPnt, sdist[0]);
+                            }
+                        }
+                        if((flags & PickInfo.ALL_GEOM_INFO) != 0) {
+                            storeInterestData(pickInfo, flags, geom, geomIndex,
+                                              vtxIndexArr, iPnt, sdist[0]);
+       		        }
+                    }
+		    pnts[0].set(pnts[1]);
+                    vtxIndexArr[0] = vtxIndexArr[1];
+                }
+	    }
+	    break;
+	case PickShape.PICKSEGMENT:
+	    PickSegment pickSegment = (PickSegment) pickShape;
+	    Vector3d dir =
+		new Vector3d(pickSegment.end.x - pickSegment.start.x,
+			     pickSegment.end.y - pickSegment.start.y,
+			     pickSegment.end.z - pickSegment.start.z);
+
+	    while (i < stripVertexCounts.length) {
+		j = stripStartVertexIndices[i];
+		end = j + stripVertexCounts[i++];
+                vtxIndexArr[0] = j;
+		getVertexData(j++, pnts[0]);
+                while (j < end) {
+                    vtxIndexArr[1] = j;
+		    getVertexData(j++, pnts[1]);
+		    if (intersectLineAndRay(pnts[0], pnts[1],
+					    pickSegment.start,
+					    dir, sdist, iPnt) &&
+			(sdist[0] <= 1.0)) {
+			if (flags == 0) {
+			    return true;
+			}
+			if (sdist[0] < minDist) {
+			    minDist = sdist[0];
+                            x = iPnt.x;
+                            y = iPnt.y;
+                            z = iPnt.z;
+                            if((flags & PickInfo.CLOSEST_GEOM_INFO) != 0) {
+                                storeInterestData(pickInfo, flags, geom, geomIndex,
+                                                  vtxIndexArr, iPnt, sdist[0]);
+                            }
+                        }
+                        if((flags & PickInfo.ALL_GEOM_INFO) != 0) {
+                            storeInterestData(pickInfo, flags, geom, geomIndex,
+                                              vtxIndexArr, iPnt, sdist[0]);
+       		        }
+		    }
+		    pnts[0].set(pnts[1]);
+                    vtxIndexArr[0] = vtxIndexArr[1];
+		}
+	    }
+	    break;
+	case PickShape.PICKBOUNDINGBOX:
+	    BoundingBox bbox = (BoundingBox)
+		               ((PickBounds) pickShape).bounds;
+
+	    while (i < stripVertexCounts.length) {
+		j = stripStartVertexIndices[i];
+		end = j + stripVertexCounts[i++];
+                vtxIndexArr[0] = j;
+		getVertexData(j++, pnts[0]);
+		while (j < end) {
+                    vtxIndexArr[1] = j;
+		    getVertexData(j++, pnts[1]);
+		    if (intersectBoundingBox(pnts, bbox, sdist, iPnt)) {
+			if (flags == 0) {
+			    return true;
+			}
+			if (sdist[0] < minDist) {
+			    minDist = sdist[0];
+                            x = iPnt.x;
+                            y = iPnt.y;
+                            z = iPnt.z;
+                            if((flags & PickInfo.CLOSEST_GEOM_INFO) != 0) {
+                                storeInterestData(pickInfo, flags, geom, geomIndex,
+                                                  vtxIndexArr, iPnt, sdist[0]);
+                            }
+                        }
+                        if((flags & PickInfo.ALL_GEOM_INFO) != 0) {
+                            storeInterestData(pickInfo, flags, geom, geomIndex,
+                                              vtxIndexArr, iPnt, sdist[0]);
+       		        }
+		    }
+		    pnts[0].set(pnts[1]);
+                    vtxIndexArr[0] = vtxIndexArr[1];
+		}
+	    }
+
+	    break;
+	case PickShape.PICKBOUNDINGSPHERE:
+	    BoundingSphere bsphere = (BoundingSphere)
+		                     ((PickBounds) pickShape).bounds;
+
+	    while (i < stripVertexCounts.length) {
+		j = stripStartVertexIndices[i];
+		end = j + stripVertexCounts[i++];
+                vtxIndexArr[0] = j;
+		getVertexData(j++, pnts[0]);
+		while (j < end) {
+                    vtxIndexArr[1] = j;
+		    getVertexData(j++, pnts[1]);
+		    if (intersectBoundingSphere(pnts, bsphere, sdist, iPnt)) {
+			if (flags == 0) {
+			    return true;
+			}
+			if (sdist[0] < minDist) {
+			    minDist = sdist[0];
+                            x = iPnt.x;
+                            y = iPnt.y;
+                            z = iPnt.z;
+                            if((flags & PickInfo.CLOSEST_GEOM_INFO) != 0) {
+                                storeInterestData(pickInfo, flags, geom, geomIndex,
+                                                  vtxIndexArr, iPnt, sdist[0]);
+                            }
+                        }
+                        if((flags & PickInfo.ALL_GEOM_INFO) != 0) {
+                            storeInterestData(pickInfo, flags, geom, geomIndex,
+                                              vtxIndexArr, iPnt, sdist[0]);
+       		        }
+		    }
+		    pnts[0].set(pnts[1]);
+                    vtxIndexArr[0] = vtxIndexArr[1];
+		}
+	    }
+	    break;
+	case PickShape.PICKBOUNDINGPOLYTOPE:
+	    BoundingPolytope bpolytope = (BoundingPolytope)
+		                      ((PickBounds) pickShape).bounds;
+
+	    while (i < stripVertexCounts.length) {
+		j = stripStartVertexIndices[i];
+		end = j + stripVertexCounts[i++];
+                vtxIndexArr[0] = j;
+		getVertexData(j++, pnts[0]);
+		while (j < end) {
+                    vtxIndexArr[1] = j;
+		    getVertexData(j++, pnts[1]);
+		    if (intersectBoundingPolytope(pnts, bpolytope, sdist, iPnt)) {
+			if (flags == 0) {
+			    return true;
+			}
+			if (sdist[0] < minDist) {
+			    minDist = sdist[0];
+                            x = iPnt.x;
+                            y = iPnt.y;
+                            z = iPnt.z;
+                            if((flags & PickInfo.CLOSEST_GEOM_INFO) != 0) {
+                                storeInterestData(pickInfo, flags, geom, geomIndex,
+                                                  vtxIndexArr, iPnt, sdist[0]);
+                            }
+                        }
+                        if((flags & PickInfo.ALL_GEOM_INFO) != 0) {
+                            storeInterestData(pickInfo, flags, geom, geomIndex,
+                                              vtxIndexArr, iPnt, sdist[0]);
+       		        }
+		    }
+		    pnts[0].set(pnts[1]);
+                    vtxIndexArr[0] = vtxIndexArr[1];
+		}
+	    }
+	    break;
+	case PickShape.PICKCYLINDER:
+	    PickCylinder pickCylinder= (PickCylinder) pickShape;
+
+	    while (i < stripVertexCounts.length) {
+		j = stripStartVertexIndices[i];
+		end = j + stripVertexCounts[i++];
+                vtxIndexArr[0] = j;
+		getVertexData(j++, pnts[0]);
+		while (j < end) {
+                    vtxIndexArr[1] = j;
+    		    getVertexData(j++, pnts[1]);
+		    if (intersectCylinder(pnts, pickCylinder, sdist, iPnt)) {
+			if (flags == 0) {
+			    return true;
+			}
+			if (sdist[0] < minDist) {
+			    minDist = sdist[0];
+                            x = iPnt.x;
+                            y = iPnt.y;
+                            z = iPnt.z;
+                            if((flags & PickInfo.CLOSEST_GEOM_INFO) != 0) {
+                                storeInterestData(pickInfo, flags, geom, geomIndex,
+                                                  vtxIndexArr, iPnt, sdist[0]);
+                            }
+                        }
+                        if((flags & PickInfo.ALL_GEOM_INFO) != 0) {
+                            storeInterestData(pickInfo, flags, geom, geomIndex,
+                                              vtxIndexArr, iPnt, sdist[0]);
+       		        }
+		    }
+		    pnts[0].set(pnts[1]);
+                    vtxIndexArr[0] = vtxIndexArr[1];
+		}
+	    }
+	    break;
+	case PickShape.PICKCONE:
+	    PickCone pickCone= (PickCone) pickShape;
+
+	    while (i < stripVertexCounts.length) {
+		j = stripStartVertexIndices[i];
+		end = j + stripVertexCounts[i++];
+                vtxIndexArr[0] = j;
+		getVertexData(j++, pnts[0]);
+		while (j < end) {
+                    vtxIndexArr[1] = j;
+		    getVertexData(j++, pnts[1]);
+		    if (intersectCone(pnts, pickCone, sdist, iPnt)) {
+			if (flags == 0) {
+			    return true;
+			}
+			if (sdist[0] < minDist) {
+			    minDist = sdist[0];
+                            x = iPnt.x;
+                            y = iPnt.y;
+                            z = iPnt.z;
+                            if((flags & PickInfo.CLOSEST_GEOM_INFO) != 0) {
+                                storeInterestData(pickInfo, flags, geom, geomIndex,
+                                                  vtxIndexArr, iPnt, sdist[0]);
+                            }
+                        }
+                        if((flags & PickInfo.ALL_GEOM_INFO) != 0) {
+                            storeInterestData(pickInfo, flags, geom, geomIndex,
+                                              vtxIndexArr, iPnt, sdist[0]);
+       		        }
+		    }
+		    pnts[0].set(pnts[1]);
+                    vtxIndexArr[0] = vtxIndexArr[1];
+		}
+	    }
+	    break;
+	case PickShape.PICKPOINT:
+	    // Should not happen since API already check for this
+	    throw new IllegalArgumentException(J3dI18N.getString("LineStripArrayRetained0"));
+	default:
+	    throw new RuntimeException ("PickShape not supported for intersection");
+	}
+
+	if (minDist < Double.MAX_VALUE) {
+	    iPnt.x = x;
+	    iPnt.y = y;
+	    iPnt.z = z;
+	    return true;
+	}
+	return false;
+    }
+
+    @Override
+    boolean intersect(Point3d[] pnts) {
+	int j, end;
+	Point3d[] points = new Point3d[2];
+	double dist[] = new double[1];
+	Vector3d dir;
+	int i = 0;
+
+	points[0] = new Point3d();
+	points[1] = new Point3d();
+
+
+
+	switch (pnts.length) {
+	case 3:
+	case 4: // Triangle, Quad
+	    while (i < stripVertexCounts.length) {
+		j = stripStartVertexIndices[i];
+		end = j + stripVertexCounts[i++];
+		getVertexData(j++, points[0]);
+		while (j < end) {
+		    getVertexData(j++, points[1]);
+		    if (intersectSegment(pnts, points[0], points[1],
+					 dist, null)) {
+			return true;
+		    }
+		    points[0].set(points[1]);
+		}
+	    }
+	    break;
+	case 2: // Line
+	    dir = new Vector3d();
+	    while (i < stripVertexCounts.length) {
+		j = stripStartVertexIndices[i];
+		end = j + stripVertexCounts[i++];
+		getVertexData(j++, points[0]);
+		while (j < end) {
+		    getVertexData(j++, points[1]);
+		    dir.x = points[1].x - points[0].x;
+		    dir.y = points[1].y - points[0].y;
+		    dir.z = points[1].z - points[0].z;
+		    if (intersectLineAndRay(pnts[0], pnts[1],
+					   points[0], dir, dist, null) &&
+			(dist[0] <= 1.0)) {
+			return true;
+		    }
+		    points[0].set(points[1]);
+		}
+	    }
+	    break;
+	case 1: // Point
+	    dir = new Vector3d();
+	    while (i < stripVertexCounts.length) {
+		j = stripStartVertexIndices[i];
+		end = j + stripVertexCounts[i++];
+		getVertexData(j++, points[0]);
+		while (j < end) {
+		    getVertexData(j++, points[1]);
+		    dir.x = points[1].x - points[0].x;
+		    dir.y = points[1].y - points[0].y;
+		    dir.z = points[1].z - points[0].z;
+		    if (intersectPntAndRay(pnts[0], points[0], dir,
+					   dist) &&
+			(dist[0] <= 1.0)) {
+			return true;
+		    }
+		    points[0].set(points[1]);
+		}
+	    }
+	    break;
+	}
+	return false;
+    }
+
+    @Override
+    boolean intersect(Transform3D thisToOtherVworld,
+		      GeometryRetained geom) {
+	int i = 0;
+	int j, end;
+	Point3d[] pnts = new Point3d[2];
+	pnts[0] = new Point3d();
+	pnts[1] = new Point3d();
+
+
+	while (i < stripVertexCounts.length) {
+	    j = stripStartVertexIndices[i];
+	    end = j + stripVertexCounts[i++];
+	    getVertexData(j++, pnts[0]);
+	    thisToOtherVworld.transform(pnts[0]);
+	    while (j < end) {
+		getVertexData(j++, pnts[1]);
+		thisToOtherVworld.transform(pnts[1]);
+		if (geom.intersect(pnts)) {
+		    return true;
+		}
+		pnts[0].set(pnts[1]);
+	    }
+	}
+	return false;
+    }
+
+    // the bounds argument is already transformed
+    @Override
+    boolean intersect(Bounds targetBound) {
+	int i = 0;
+	int j, offset, end;
+	Point3d[] pnts = new Point3d[2];
+	pnts[0] = new Point3d();
+	pnts[1] = new Point3d();
+
+
+
+	switch(targetBound.getPickType()) {
+	case PickShape.PICKBOUNDINGBOX:
+	    BoundingBox box = (BoundingBox) targetBound;
+
+	    while (i < stripVertexCounts.length) {
+		j = stripStartVertexIndices[i];
+		end = j + stripVertexCounts[i++];
+		getVertexData(j++, pnts[0]);
+		while ( j < end) {
+		    getVertexData(j++, pnts[1]);
+		    if (intersectBoundingBox(pnts, box, null, null)) {
+			return true;
+		    }
+		    pnts[0].set(pnts[1]);
+		}
+	    }
+	    break;
+	case PickShape.PICKBOUNDINGSPHERE:
+	    BoundingSphere bsphere = (BoundingSphere) targetBound;
+	    while (i < stripVertexCounts.length) {
+		j = stripStartVertexIndices[i];
+		end = j + stripVertexCounts[i++];
+		getVertexData(j++, pnts[0]);
+		while ( j < end) {
+		    getVertexData(j++, pnts[1]);
+		    if (intersectBoundingSphere(pnts, bsphere, null,
+						null)) {
+			return true;
+		    }
+		    pnts[0].set(pnts[1]);
+		}
+	    }
+	    break;
+	case PickShape.PICKBOUNDINGPOLYTOPE:
+	    BoundingPolytope bpolytope = (BoundingPolytope) targetBound;
+
+	    while (i < stripVertexCounts.length) {
+		j = stripStartVertexIndices[i];
+		end = j + stripVertexCounts[i++];
+		getVertexData(j++, pnts[0]);
+		while ( j < end) {
+		    getVertexData(j++, pnts[1]);
+		    if (intersectBoundingPolytope(pnts, bpolytope,
+						  null, null)) {
+			return true;
+		    }
+		    pnts[0].set(pnts[1]);
+		}
+	    }
+	    break;
+	default:
+	    throw new RuntimeException("Bounds not supported for intersection "
+				       + targetBound);
+	}
+
+	return false;
+    }
+
+    // From Graphics Gems IV (pg5) and Graphics Gems II, Pg170
+    @Override
+    void computeCentroid() {
+	int i = 0;
+	int j;
+	double length;
+	double totallength = 0;
+	int start, end;
+	boolean replaceVertex1;
+	Point3d pnt0 = new Point3d();
+	Point3d pnt1 = new Point3d();
+
+	centroid.x = 0;
+	centroid.y = 0;
+	centroid.z = 0;
+
+
+
+	while (i < stripVertexCounts.length) {
+	    j = stripStartVertexIndices[i];
+	    end = j + stripVertexCounts[i++];
+	    getVertexData(j++, pnt0);
+	    replaceVertex1 = true;
+	    while (j < end) {
+		if (replaceVertex1) {
+		    getVertexData(j++, pnt1);
+		    replaceVertex1 = false;
+		} else {
+		    getVertexData(j++, pnt0);
+		    replaceVertex1 = true;
+		}
+		length = pnt0.distance(pnt1);
+		centroid.x += (pnt0.x + pnt1.x) * length;
+		centroid.y += (pnt0.y + pnt1.y) * length;
+		centroid.z += (pnt0.z + pnt1.z) * length;
+		totallength += length;
+	    }
+	}
+	if (totallength != 0.0) {
+	    length = 1.0/(2.0 * totallength);
+	    centroid.x *= length;
+	    centroid.y *= length;
+	    centroid.z *= length;
+	}
+    }
+
+    @Override
+    int getClassType() {
+	return LINE_TYPE;
+    }
+
+}