[37] | 1 | /* |
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| 2 | |
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| 3 | Name: mcfile.h |
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| 4 | |
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| 5 | Coded: Paul Ning |
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| 6 | |
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| 7 | Modified by: Brian Curless |
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| 8 | Computer Graphics Laboratory |
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| 9 | Stanford University |
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| 10 | |
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| 11 | Comment: Include file for Marching Cubes File Package |
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| 12 | |
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| 13 | |
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| 14 | Copyright (1997) The Board of Trustees of the Leland Stanford Junior |
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| 15 | University. Except for commercial resale, lease, license or other |
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| 16 | commercial transactions, permission is hereby given to use, copy, |
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| 17 | modify this software for academic purposes only. No part of this |
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| 18 | software or any derivatives thereof may be used in the production of |
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| 19 | computer models for resale or for use in a commercial |
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| 20 | product. STANFORD MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND |
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| 21 | CONCERNING THIS SOFTWARE. No support is implied or provided. |
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| 22 | |
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| 23 | */ |
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| 24 | |
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| 25 | |
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| 26 | /* |
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| 27 | * Marching Cubes File Format |
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| 28 | * |
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| 29 | * ---------------------- |
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| 30 | * | header | |
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| 31 | * ---------------------- |
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| 32 | * | surface data | |
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| 33 | * ---------------------- |
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| 34 | */ |
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| 35 | |
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| 36 | #ifdef __cplusplus |
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| 37 | extern "C" { |
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| 38 | #endif |
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| 39 | |
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| 40 | |
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| 41 | /* |
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| 42 | * GENERAL |
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| 43 | */ |
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| 44 | |
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| 45 | typedef long Boolean; |
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| 46 | |
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| 47 | #ifndef TRUE |
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| 48 | #define TRUE 1 |
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| 49 | #endif |
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| 50 | |
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| 51 | #ifndef FALSE |
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| 52 | #define FALSE 0 |
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| 53 | #endif |
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| 54 | |
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| 55 | /* |
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| 56 | * HEADER STUFF |
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| 57 | */ |
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| 58 | |
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| 59 | typedef struct { |
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| 60 | int mc_magic; /* magic number */ |
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| 61 | int mc_type; /* type of mc file */ |
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| 62 | int mc_tmaptype; /* type of texture map */ |
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| 63 | int mc_length; /* length (in bytes) of surface data */ |
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| 64 | } mcfile; |
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| 65 | |
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| 66 | #define MC_MAGIC 0xFEDECABA |
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| 67 | |
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| 68 | /* mc_types */ |
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| 69 | #define MCT_STANDARD 0 /* list of triangles */ |
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| 70 | #define MCT_TREE 1 /* pruned tree file */ |
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| 71 | |
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| 72 | /* mc_tmaptypes */ |
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| 73 | #define MCTM_NONE 0 /* no texture map */ |
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| 74 | #define MCTM_STANDARD 1 /* one value (0-255) per vertex */ |
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| 75 | #define MCTM_DOUBLE 2 /* two values per vertex */ |
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| 76 | |
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| 77 | /* functions */ |
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| 78 | extern Boolean IsMCFile(FILE *fp); |
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| 79 | extern void MC_InitHeader(FILE *fp); |
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| 80 | extern void MC_WriteHeader(FILE *fp, mcfile header); |
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| 81 | extern mcfile MC_ReadHeader(FILE *fp); |
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| 82 | |
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| 83 | |
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| 84 | /* |
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| 85 | * SURFACE DATA STUFF |
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| 86 | */ |
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| 87 | |
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| 88 | typedef struct { |
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| 89 | float x, y, z; /* position components */ |
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| 90 | float nx, ny, nz; /* normal components */ |
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| 91 | float confidence; |
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| 92 | unsigned char tex1; /* first texture value */ |
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| 93 | unsigned char tex2; /* second texture value */ |
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| 94 | signed char ncx, ncy, ncz; /* used to ensure faces are |
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| 95 | oriented consistently */ |
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| 96 | unsigned char realData; |
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| 97 | unsigned char valid; |
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| 98 | } TriangleVertex; |
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| 99 | |
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| 100 | /* functions */ |
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| 101 | extern void MC_WriteTriangleVertex(FILE *fp,TriangleVertex vertex); |
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| 102 | extern TriangleVertex MC_ReadTriangleVertex(FILE *fp); |
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| 103 | |
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| 104 | |
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| 105 | #ifdef __cplusplus |
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| 106 | } |
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| 107 | #endif |
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| 108 | |
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