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Diffstat (limited to 'src/classes/com/sun/opengl/impl/nurbs/Knotvector.java')
| -rwxr-xr-x | src/classes/com/sun/opengl/impl/nurbs/Knotvector.java | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/src/classes/com/sun/opengl/impl/nurbs/Knotvector.java b/src/classes/com/sun/opengl/impl/nurbs/Knotvector.java deleted file mode 100755 index c7c3d4578..000000000 --- a/src/classes/com/sun/opengl/impl/nurbs/Knotvector.java +++ /dev/null @@ -1,179 +0,0 @@ -package com.sun.opengl.impl.glu.nurbs; - -/* - ** License Applicability. Except to the extent portions of this file are - ** made subject to an alternative license as permitted in the SGI Free - ** Software License B, Version 1.1 (the "License"), the contents of this - ** file are subject only to the provisions of the License. You may not use - ** this file except in compliance with the License. You may obtain a copy - ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 - ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: - ** - ** http://oss.sgi.com/projects/FreeB - ** - ** Note that, as provided in the License, the Software is distributed on an - ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS - ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND - ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A - ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. - ** - ** Original Code. The Original Code is: OpenGL Sample Implementation, - ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, - ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. - ** Copyright in any portions created by third parties is as indicated - ** elsewhere herein. All Rights Reserved. - ** - ** Additional Notice Provisions: The application programming interfaces - ** established by SGI in conjunction with the Original Code are The - ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released - ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version - ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X - ** Window System(R) (Version 1.3), released October 19, 1998. This software - ** was created using the OpenGL(R) version 1.2.1 Sample Implementation - ** published by SGI, but has not been independently verified as being - ** compliant with the OpenGL(R) version 1.2.1 Specification. - */ - -/** - * Knot vector used in curve specification - * - * @author Tomas Hrasky - * - */ -public class Knotvector { - - /** - * Tolerance used when comparing knots - when difference is smaller, knots - * are considered equal - */ - public static final float TOLERANCE = 1.0e-5f; - - /** - * Maximum curve order - */ - private static final int MAXORDER = 24; - - /** - * Number of knots - */ - int knotcount; - - /** - * Number of control points' coordinates - */ - int stride; - - /** - * Curve order - */ - int order; - - /** - * Knots - */ - float[] knotlist; - - /** - * Makes new knotvector - * - * @param nknots - * number of knots - * @param stride - * number of ctrl points' corrdinates - * @param order - * curve order - * @param knot - * knots - */ - public Knotvector(int nknots, int stride, int order, float[] knot) { - // DONE - init(nknots, stride, order, knot); - } - - /** - * Initializes knotvector - * - * @param nknots - * number of knots - * @param stride - * number of ctrl points' corrdinates - * @param order - * curve order - * @param knot - * knots - */ - public void init(int nknots, int stride, int order, float[] knot) { - // DONE - this.knotcount = nknots; - this.stride = stride; - this.order = order; - this.knotlist = new float[nknots]; - for (int i = 0; i < nknots; i++) { - this.knotlist[i] = knot[i]; - } - - } - - /** - * Validates knot vector parameters - * - * @return knot vector validity - */ - public int validate() { - int kindex = knotcount - 1; - if (order < 1 || order > MAXORDER) { - return 1; - } - if (knotcount < 2 * order) { - return 2; - } - if (identical(knotlist[kindex - (order - 1)], knotlist[order - 1])) { - return 3; - } - for (int i = 0; i < kindex; i++) { - if (knotlist[i] > knotlist[i + 1]) - return 4; - } - int multi = 1; - for (; kindex >= 1; kindex--) { - if (knotlist[kindex] - knotlist[kindex - 1] < TOLERANCE) { - multi++; - continue; - } - if (multi > order) { - return 5; - } - multi = 1; - } - if (multi > order) { - return 5; - } - - return 0; - } - - /** - * Show specified message - * - * @param msg - * message to be shown - */ - public void show(String msg) { - // TODO Auto-generated method stub - // System.out.println("TODO knotvector.show"); - - } - - /** - * Compares two knots for equality - * - * @param a - * first knot - * @param b - * second knot - * @return knots are/are not equal - */ - public static boolean identical(float a, float b) { - return ((a - b) < TOLERANCE) ? true : false; - } -} |