001: /*
002: * $RCSfile: SFRotation.java,v $
003: *
004: * @(#)SFRotation.java 1.18 98/11/05 20:35:43
005: *
006: * Copyright (c) 1996-1998 Sun Microsystems, Inc. All Rights Reserved.
007: *
008: * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
009: * modify and redistribute this software in source and binary code form,
010: * provided that i) this copyright notice and license appear on all copies of
011: * the software; and ii) Licensee does not utilize the software in a manner
012: * which is disparaging to Sun.
013: *
014: * This software is provided "AS IS," without a warranty of any kind. ALL
015: * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
016: * IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
017: * NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
018: * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
019: * OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
020: * LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
021: * INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
022: * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
023: * OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
024: * POSSIBILITY OF SUCH DAMAGES.
025: *
026: * This software is not designed or intended for use in on-line control of
027: * aircraft, air traffic, aircraft navigation or aircraft communications; or in
028: * the design, construction, operation or maintenance of any nuclear
029: * facility. Licensee represents and warrants that it will not use or
030: * redistribute the Software for such purposes.
031: *
032: * $Revision: 1.2 $
033: * $Date: 2005/02/03 23:07:01 $
034: * $State: Exp $
035: */
036: /*
037: * @Author: Rick Goldberg
038: * @Author: Doug Gehringer
039: *
040: */
041: package org.jdesktop.j3d.loaders.vrml97.impl;
042:
043: import java.util.Observable;
044: import java.util.Observer;
045:
046: /** Description of the Class */
047: public class SFRotation extends Field {
048: float[] rot = new float[4];
049:
050: /**Constructor for the SFRotation object */
051: public SFRotation() {
052: rot[0] = 0.0f;
053: rot[1] = 0.0f;
054: rot[2] = 1.0f;
055: rot[3] = 0.0f;
056: }
057:
058: /**
059: *Constructor for the SFRotation object
060: *
061: *@param x Description of the Parameter
062: *@param y Description of the Parameter
063: *@param z Description of the Parameter
064: *@param axisAngle Description of the Parameter
065: */
066: public SFRotation(float x, float y, float z, float axisAngle) {
067: rot[0] = x;
068: rot[1] = y;
069: rot[2] = z;
070: rot[3] = axisAngle;
071: }
072:
073: /**
074: *Constructor for the SFRotation object
075: *
076: *@param axisAngle Description of the Parameter
077: */
078: public SFRotation(float[] axisAngle) {
079: rot[0] = axisAngle[0];
080: rot[1] = axisAngle[1];
081: rot[2] = axisAngle[2];
082: rot[3] = axisAngle[3];
083: }
084:
085: /**
086: * Gets the value attribute of the SFRotation object
087: *
088: *@param rotation Description of the Parameter
089: */
090: public void getValue(float[] rotation) {
091: System.arraycopy(rot, 0, rotation, 0, 4);
092: }
093:
094: /**
095: * Gets the value attribute of the SFRotation object
096: *
097: *@return The value value
098: */
099: public float[] getValue() {
100: return rot;
101: }
102:
103: /**
104: * Sets the value attribute of the SFRotation object
105: *
106: *@param r The new value value
107: */
108: public void setValue(float[] r) {
109: System.arraycopy(r, 0, rot, 0, 4);
110: route();
111: }
112:
113: /**
114: * Sets the value attribute of the SFRotation object
115: *
116: *@param xAxis The new value value
117: *@param yAxis The new value value
118: *@param zAxis The new value value
119: *@param angle The new value value
120: */
121: public void setValue(float xAxis, float yAxis, float zAxis,
122: float angle) {
123: rot[0] = xAxis;
124: rot[1] = yAxis;
125: rot[2] = zAxis;
126: rot[3] = angle;
127:
128: route();
129: }
130:
131: /**
132: * Sets the value attribute of the SFRotation object
133: *
134: *@param rotation The new value value
135: */
136: public void setValue(ConstSFRotation rotation) {
137: setValue((SFRotation) rotation.ownerField);
138: }
139:
140: /**
141: * Sets the value attribute of the SFRotation object
142: *
143: *@param rotation The new value value
144: */
145: public void setValue(SFRotation rotation) {
146: setValue(rotation.rot);
147:
148: }
149:
150: /**
151: * Description of the Method
152: *
153: *@return Description of the Return Value
154: */
155: public Object clone() {
156: //Object o = (Object) new SFRotation();
157: return new SFRotation(rot);
158: }
159:
160: /**
161: * Description of the Method
162: *
163: *@param field Description of the Parameter
164: */
165: public void update(Field field) {
166: setValue((SFRotation) field);
167: }
168:
169: /**
170: * Description of the Method
171: *
172: *@return Description of the Return Value
173: */
174: public synchronized ConstField constify() {
175: if (constField == null) {
176: constField = new ConstSFRotation(this );
177: }
178: return constField;
179: }
180:
181: /**
182: * Description of the Method
183: *
184: *@return Description of the Return Value
185: */
186: public vrml.Field wrap() {
187: return new vrml.field.SFRotation(this );
188: }
189:
190: /** Description of the Method */
191: void route() {
192: double normalizer = Math.sqrt(rot[0] * rot[0] + rot[1] * rot[1]
193: + rot[2] * rot[2]);
194: if (normalizer < .001f) {
195: rot[0] = 0.0f;
196: rot[1] = 1.0f;
197: rot[2] = 0.0f;
198: } else {
199: rot[0] /= normalizer;
200: rot[1] /= normalizer;
201: rot[2] /= normalizer;
202: }
203: super .route();
204: }
205:
206: /**
207: * Description of the Method
208: *
209: *@return Description of the Return Value
210: */
211: public String toString() {
212: return rot[0] + " " + rot[1] + " " + rot[2] + " " + rot[3]
213: + "\n";
214: }
215:
216: }
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