001: /*
002: * $RCSfile: ScalarInterpolator.java,v $
003: *
004: * @(#)ScalarInterpolator.java 1.15 98/11/05 20:35:45
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: /** Description of the Class */
044: public class ScalarInterpolator extends Interpolator {
045: // eventIn
046: SFFloat fraction;
047:
048: // exposedField
049: // MFFloat key; // from Interpolator
050: MFFloat keyValue;
051:
052: // eventOut
053:
054: // spec goes its value_changed, but we need to have a value first
055: SFFloat value;
056:
057: float v1;
058: float v2;
059:
060: /**
061: *Constructor for the ScalarInterpolator object
062: *
063: *@param loader Description of the Parameter
064: */
065: public ScalarInterpolator(Loader loader) {
066: super (loader);
067: fraction = new SFFloat(0.0f);
068: key = new MFFloat();
069: keyValue = new MFFloat();
070: value = new SFFloat(0.0f);
071: initFields();
072: }
073:
074: /**
075: *Constructor for the ScalarInterpolator object
076: *
077: *@param loader Description of the Parameter
078: *@param key Description of the Parameter
079: *@param keyValue Description of the Parameter
080: */
081: ScalarInterpolator(Loader loader, MFFloat key, MFFloat keyValue) {
082: super (loader);
083: // initialize the interpolator to the right
084: // value. otherwise do it manually;
085: this .fraction = new SFFloat(0.0f);
086: this .key = key;
087: this .keyValue = keyValue;
088: this .value = new SFFloat(0.0f);// may need to cycle
089: // through one interp
090: initFields();
091: }
092:
093: /**
094: * Description of the Method
095: *
096: *@param eventInName Description of the Parameter
097: *@param time Description of the Parameter
098: */
099: public void notifyMethod(String eventInName, double time) {
100: if (eventInName.equals("fraction")) {
101: if (key.mfloat.length > 0) {
102: setIndexFract(fraction.value);
103: v1 = keyValue.mfloat[iL];
104: v2 = keyValue.mfloat[iL + 1];
105: value.value = (v1 * af) + (v2 * f);
106: }
107: value.route();
108: }
109:
110: }
111:
112: /**
113: * Description of the Method
114: *
115: *@return Description of the Return Value
116: */
117: public Object clone() {
118: return new ScalarInterpolator(loader, (MFFloat) key.clone(),
119: (MFFloat) keyValue.clone());
120: }
121:
122: /**
123: * Gets the type attribute of the ScalarInterpolator object
124: *
125: *@return The type value
126: */
127: public String getType() {
128: return "ScalarInterpolator";
129: }
130:
131: /** Description of the Method */
132: void initFields() {
133: fraction.init(this , FieldSpec, Field.EVENT_IN, "fraction");
134: key.init(this , FieldSpec, Field.EXPOSED_FIELD, "key");
135: keyValue.init(this , FieldSpec, Field.EXPOSED_FIELD, "keyValue");
136: value.init(this , FieldSpec, Field.EVENT_OUT, "value");
137: }
138:
139: }
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