j3dcore: flatten the directory structure a bit

Signed-off-by: Harvey Harrison <[email protected]>

1 files changed, 139 insertions, 0 deletions

diff --git a/src/javax/media/j3d/PickRay.java b/src/javax/media/j3d/PickRay.java
new file mode 100644
index 0000000..ed88da2
--- /dev/null
+++ b/src/javax/media/j3d/PickRay.java
@@ -0,0 +1,139 @@
+/*
+ * 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.Point4d;
+import javax.vecmath.Vector3d;
+
+/**
+ * PickRay is an infinite ray pick shape.  It can
+ * be used as an argument to the picking methods in BranchGroup and Locale.
+ *
+ * @see BranchGroup#pickAll
+ * @see Locale#pickAll
+ */
+public final class PickRay extends PickShape {
+
+    Point3d origin;
+    Vector3d direction;
+
+    /**
+     * Constructs an empty PickRay.  The origin and direction of the
+     * ray are initialized to (0,0,0).
+     */
+    public PickRay() {
+	origin = new Point3d();
+	direction = new Vector3d();
+    }
+
+    /**
+     * Constructs an infinite ray pick shape from the specified
+     * parameters.
+     * @param origin the origin of the ray.
+     * @param direction the direction of the ray.
+     */
+    public PickRay(Point3d origin, Vector3d direction) {
+	this.origin = new Point3d(origin);
+	this.direction = new Vector3d(direction);
+    }
+
+
+    /**
+     * Sets the parameters of this PickRay to the specified values.
+     * @param origin the origin of the ray.
+     * @param direction the direction of the ray.
+     */
+    public void set(Point3d origin, Vector3d direction) {
+	this.origin.x = origin.x;
+	this.origin.y = origin.y;
+	this.origin.z = origin.z;
+	this.direction.x = direction.x;
+	this.direction.y = direction.y;
+	this.direction.z = direction.z;
+    }
+
+    /**
+     * Retrieves the parameters from this PickRay.
+     * @param origin the Point3d object into which the origin will be copied.
+     * @param direction the Vector3d object into which the direction
+     * will be copied.
+     */
+    public void get(Point3d origin, Vector3d direction) {
+	origin.x = this.origin.x;
+	origin.y = this.origin.y;
+	origin.z = this.origin.z;
+	direction.x = this.direction.x;
+	direction.y = this.direction.y;
+	direction.z = this.direction.z;
+    }
+
+    /**
+     * Return true if shape intersect with bounds.
+     * The point of intersection is stored in pickPos.
+     */
+    @Override
+    final boolean intersect(Bounds bounds, Point4d pickPos) {
+	return bounds.intersect(origin, direction,  pickPos);
+    }
+
+
+    // Only use within J3D.
+    // Return a new PickRay that is the transformed (t3d) of this pickRay.
+    @Override
+    PickShape transform(Transform3D t3d) {
+
+	Point3d end = new Point3d();
+
+	PickRay newPR = new PickRay(origin, direction);
+
+	end.x = origin.x + direction.x;
+	end.y = origin.y + direction.y;
+	end.z = origin.z + direction.z;
+
+	t3d.transform(newPR.origin);
+	t3d.transform(end);
+
+	newPR.direction.x = end.x - newPR.origin.x;
+	newPR.direction.y = end.y - newPR.origin.y;
+	newPR.direction.z = end.z - newPR.origin.z;
+	newPR.direction.normalize();
+
+	return newPR;
+    }
+
+
+    @Override
+    Point3d getStartPoint() {
+	return origin;
+    }
+
+    @Override
+    int getPickType() {
+	return PICKRAY;
+    }
+}