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author | ftrapero <frantracer@gmail.com> | 2017-06-27 12:08:38 +0200 |
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committer | ftrapero <frantracer@gmail.com> | 2017-06-27 12:08:38 +0200 |
commit | b30506dface604c78e445905ce263f166945d67b (patch) | |
tree | 1c23f91f36eb445850b654daa9c5e30bb47072e5 /nx-X11/extras/Mesa_6.4.2/src/glu/sgi/libnurbs/internals/knotvector.h | |
parent | c032f0e341c981036e9b3245a0e0710ad61599d0 (diff) | |
parent | 663631725ee2d633d9ec5821cd48953ffd188d00 (diff) | |
download | nx-libs-b30506dface604c78e445905ce263f166945d67b.tar.gz nx-libs-b30506dface604c78e445905ce263f166945d67b.tar.bz2 nx-libs-b30506dface604c78e445905ce263f166945d67b.zip |
Include mesa-6.4.2 project
Diffstat (limited to 'nx-X11/extras/Mesa_6.4.2/src/glu/sgi/libnurbs/internals/knotvector.h')
-rw-r--r-- | nx-X11/extras/Mesa_6.4.2/src/glu/sgi/libnurbs/internals/knotvector.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa_6.4.2/src/glu/sgi/libnurbs/internals/knotvector.h b/nx-X11/extras/Mesa_6.4.2/src/glu/sgi/libnurbs/internals/knotvector.h new file mode 100644 index 000000000..bb1e59332 --- /dev/null +++ b/nx-X11/extras/Mesa_6.4.2/src/glu/sgi/libnurbs/internals/knotvector.h @@ -0,0 +1,68 @@ +/* +** 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. +*/ + +/* + * knotvector.h + * + * $Date: 2001/03/17 00:25:41 $ $Revision: 1.1 $ + * $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/internals/knotvector.h,v 1.1 2001/03/17 00:25:41 brianp Exp $ + */ + +#ifndef __gluknotvector_h_ +#define __gluknotvector_h_ + +#include "types.h" + +struct Knotvector { /* a knot vector */ + Knotvector( void ); + ~Knotvector( void ); + void init( long, long, long, INREAL * ); + int validate( void ); + void show( char * ); + + long order; /* order of spline */ + long knotcount; /* number of knots */ + long stride; /* bytes between points */ + Knot * knotlist; /* global knot vector */ +}; + +/* tolerance to test knot coincidence */ +#define TOLERANCE 1.0e-5 + +inline int +identical( Knot x, Knot y ) +{ + return ((x-y) < TOLERANCE) ? 1 : 0; +} +#endif /* __gluknotvector_h_ */ |