1 /* 2 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008) 3 * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice including the dates of first publication and 13 * either this permission notice or a reference to 14 * http://oss.sgi.com/projects/FreeB/ 15 * shall be included in all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 21 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF 22 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 23 * SOFTWARE. 24 * 25 * Except as contained in this notice, the name of Silicon Graphics, Inc. 26 * shall not be used in advertising or otherwise to promote the sale, use or 27 * other dealings in this Software without prior written authorization from 28 * Silicon Graphics, Inc. 29 */ 30 31 /* 32 * mesher.h 33 * 34 */ 35 36 #ifndef __glumesher_h_ 37 #define __glumesher_h_ 38 39 #include "hull.h" 40 41 class TrimRegion; 42 class Backend; 43 class Pool; 44 // struct GridTrimVertex; 45 46 47 class Mesher : virtual public TrimRegion, public Hull { 48 public: 49 Mesher( Backend & ); 50 ~Mesher( void ); 51 void init( unsigned int ); 52 void mesh( void ); 53 54 private: 55 static const float ZERO; 56 Backend& backend; 57 58 Pool p; 59 unsigned int stacksize; 60 GridTrimVertex ** vdata; 61 GridTrimVertex * last[2]; 62 int itop; 63 int lastedge; 64 65 inline void openMesh( void ); 66 inline void swapMesh( void ); 67 inline void closeMesh( void ); 68 inline int isCcw( int ); 69 inline int isCw( int ); 70 inline void clearStack( void ); 71 inline void push( GridTrimVertex * ); 72 inline void pop( long ); 73 inline void move( int, int ); 74 inline int equal( int, int ); 75 inline void copy( int, int ); 76 inline void output( int ); 77 void addUpper( void ); 78 void addLower( void ); 79 void addLast( void ); 80 void finishUpper( GridTrimVertex * ); 81 void finishLower( GridTrimVertex * ); 82 }; 83 #endif /* __glumesher_h_ */ 84