diff options
author | Harvey Harrison <[email protected]> | 2015-04-19 21:02:06 -0700 |
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committer | Harvey Harrison <[email protected]> | 2015-04-19 21:02:06 -0700 |
commit | 7a2e20caac9db6f789a7b3fab344b9758af45335 (patch) | |
tree | b5236ff2570178de356eab569225108948eb4d30 /src/javax/media/j3d/PickCone.java | |
parent | f76ce302c4bb2a9f03bbee571ec5d05c29633023 (diff) |
j3dcore: flatten the directory structure a bit
Signed-off-by: Harvey Harrison <[email protected]>
Diffstat (limited to 'src/javax/media/j3d/PickCone.java')
-rw-r--r-- | src/javax/media/j3d/PickCone.java | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/src/javax/media/j3d/PickCone.java b/src/javax/media/j3d/PickCone.java new file mode 100644 index 0000000..6dd3893 --- /dev/null +++ b/src/javax/media/j3d/PickCone.java @@ -0,0 +1,108 @@ +/* + * Copyright 1999-2008 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; + +/** + * PickCone is the abstract base class of all cone pick shapes. + * + * @since Java 3D 1.2 + */ +public abstract class PickCone extends PickShape { + + Point3d origin; + Vector3d direction; + double spreadAngle; + + /** + * Constructs an empty PickCone. + * The origin and direction of the cone are + * initialized to (0,0,0). The spread angle is initialized + * to <code>PI/64</code>. + */ + public PickCone() { + this.origin = new Point3d(); + this.direction = new Vector3d(); + this.spreadAngle = Math.PI / 64.0; + } + + /** + * Gets the origin of this PickCone. + * @param origin the Point3d object into which the origin will be copied. + */ + public void getOrigin(Point3d origin) { + origin.set(this.origin); + } + + /** + * Gets the direction of this PickCone. + * @param direction the Vector3d object into which the direction + * will be copied. + */ + public void getDirection(Vector3d direction) { + direction.set(this.direction); + } + + + /** + * Gets the spread angle of this PickCone. + * @return the spread angle. + */ + public double getSpreadAngle() { + return spreadAngle; + } + + /** + * Gets the radius of this PickCone at the specified distance. + * @param distance the distance from the origin at which we want + * the radius of the cone + * @return the radius at the specified distance + */ + double getRadius(double distance) { + return distance * Math.tan (spreadAngle); + } + + /** + * Return true if shape intersect with bounds. + * The point of intersection is stored in pickPos. + */ + @Override + abstract boolean intersect(Bounds bounds, Point4d pickPos); + + @Override + Point3d getStartPoint() { + return origin; + } + + @Override + int getPickType() { + return PICKCONE; + } +} |