d60dca1854e6a545e0a86ff1c4840fe71e8ae600
2 ** License Applicability. Except to the extent portions of this file are
3 ** made subject to an alternative license as permitted in the SGI Free
4 ** Software License B, Version 1.1 (the "License"), the contents of this
5 ** file are subject only to the provisions of the License. You may not use
6 ** this file except in compliance with the License. You may obtain a copy
7 ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
8 ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
10 ** http://oss.sgi.com/projects/FreeB
12 ** Note that, as provided in the License, the Software is distributed on an
13 ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
14 ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
15 ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
16 ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
18 ** Original Code. The Original Code is: OpenGL Sample Implementation,
19 ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
20 ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
21 ** Copyright in any portions created by third parties is as indicated
22 ** elsewhere herein. All Rights Reserved.
24 ** Additional Notice Provisions: The application programming interfaces
25 ** established by SGI in conjunction with the Original Code are The
26 ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
27 ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
28 ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
29 ** Window System(R) (Version 1.3), released October 19, 1998. This software
30 ** was created using the OpenGL(R) version 1.2.1 Sample Implementation
31 ** published by SGI, but has not been independently verified as being
32 ** compliant with the OpenGL(R) version 1.2.1 Specification.
34 ** $Date$ $Revision: 1.1 $
37 ** $Header: /cygdrive/c/RCVS/CVS/ReactOS/reactos/lib/glu32/libnurbs/nurbtess/polyDBG.h,v 1.1 2004/02/02 16:39:13 navaraf Exp $
43 #include "definitions.h"
44 #include "directedLine.h"
45 #include "monoTriangulation.h"
47 Int
DBG_edgesIntersectGen(Real A
[2], Real B
[2], Real C
[2], Real D
[2]);
48 Int
DBG_intersectChain(vertexArray
* chain
, Int start
, Int end
, Real A
[2], Real B
[2]);
51 Int
DBG_edgesIntersect(directedLine
* l1
, directedLine
* l2
);
52 Int
DBG_polygonSelfIntersect(directedLine
* poly
);
53 Int
DBG_edgeIntersectPoly(directedLine
* edge
, directedLine
* poly
);
54 Int
DBG_polygonsIntersect(directedLine
* p1
, directedLine
* p2
);
55 Int
DBG_polygonListIntersect(directedLine
* pList
);
57 Int
DBG_isCounterclockwise(directedLine
* poly
);
58 Int
DBG_rayIntersectEdge(Real v0
[2], Real dx
, Real dy
, Real v10
[2], Real v1
[2], Real v2
[2]);
59 Int
DBG_pointInsidePoly(Real v
[2], directedLine
* poly
);
60 Int
DBG_enclosingPolygons(directedLine
* poly
, directedLine
* list
);
61 void DBG_reverse(directedLine
* poly
);
62 Int
DBG_check(directedLine
*polyList
);
64 Int
DBG_isConvex(directedLine
*poly
);
65 Int
DBG_is_U_direction(directedLine
*poly
);
66 Int
DBG_is_U_monotone(directedLine
* poly
);
68 directedLine
* DBG_cutIntersectionAllPoly(directedLine
* list
);
69 directedLine
* DBG_cutIntersectionPoly(directedLine
*polygon
, int& cutOccur
);
71 sampledLine
* DBG_collectSampledLinesAllPoly(directedLine
*polygonList
);
73 void DBG_collectSampledLinesPoly(directedLine
*polygon
, sampledLine
*& retHead
, sampledLine
*& retTail
);