Copied JOGL_2_SANDBOX r350 on to trunk; JOGL_2_SANDBOX branch is now closed

git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/jogl-demos/trunk@352 3298f667-5e0e-4b4a-8ed4-a3559d26a5f4

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diff --git a/src/demos/xtrans/InterpolatedQuad3f.java b/src/demos/xtrans/InterpolatedQuad3f.java
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+/*
+ * Copyright (c) 2005 Sun Microsystems, Inc. All Rights Reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ * - Redistribution of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ * - Redistribution in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * 
+ * This software is provided "AS IS," without a warranty of any kind. ALL
+ * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ * 
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ * 
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package demos.xtrans;
+
+import gleem.linalg.*;
+
+/** A quadrilateral of three-dimensional floating-point values which
+ * interpolates between specified start and end values.
+ *
+ * @author Kenneth Russell
+ */
+
+public class InterpolatedQuad3f {
+  private Quad3f start;
+  private Quad3f end;
+
+  /** Constructs a new InterpolatedQuad3f. By default both the start
+      and end quadrilaterals have all of their points set to the
+      origin. */
+  public InterpolatedQuad3f() {
+    start = new Quad3f();
+    end = new Quad3f();
+  }
+
+  /** Returns the starting value for the interpolation. */
+  public Quad3f getStart() {
+    return start;
+  }
+
+  /** Sets the starting value for the interpolation. */
+  public void setStart(Quad3f quad) {
+    start.set(quad);
+  }
+
+  /** Returns the ending value for the interpolation. */
+  public Quad3f getEnd() {
+    return end;
+  }
+
+  /** Sets the ending value for the interpolation. */
+  public void setEnd(Quad3f quad) {
+    end.set(quad);
+  }
+
+  /** Gets the current interpolated value at the specified fraction of
+      interpolation (0.0 - 1.0). */
+  public Quad3f getCurrent(float fraction) {
+    return start.times(1.0f - fraction).plus(end.times(fraction));
+  }
+}