Mercurial > hg > forks > gldragon

annotate ply2bin.cpp @ 30:1a0e823283e4

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Add simple converter for converting ASCII ply files into binary format.
author Matti Hamalainen <ccr@tnsp.org>
date Fri, 22 Nov 2019 09:49:06 +0200
parents
children d0cd281934a3
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rev   line source
30
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
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1 //
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2 // ply2bin - Convert ASCII PLY file to binary PLY
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3 // Programmed and designed by Matti 'ccr' Hämäläinen <ccr@tnsp.org>
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4 // (C) Copyright 2019 Tecnic Software productions (TNSP)
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5 //
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6 // See file "COPYING" for license information.
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7 //
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8 #include <SDL.h>
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9 #include "dmutil.h"
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10 #include "dmmodel.h"
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11
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12
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13 bool dmFWriteFloatLE(FILE *fh, const float val)
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14 {
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15 float tmp = SDL_SwapFloatLE(val);
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16 return fwrite(&tmp, sizeof(tmp), 1, fh) == 1;
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17 }
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18
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19
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20 bool dmFWriteU32LE(FILE *fh, const Uint32 val)
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21 {
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22 Uint32 tmp = SDL_SwapLE32(val);
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23 return fwrite(&tmp, sizeof(tmp), 1, fh) == 1;
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24 }
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25
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26
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27 bool dmFWriteU8(FILE *fh, const Uint8 val)
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28 {
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29 return fwrite(&val, sizeof(val), 1, fh) == 1;
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30 }
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31
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32
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33 bool dmFWriteBINPLY(FILE *fh, const DMModel &model)
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34 {
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35 bool writeNormals = model.normals.size() == (unsigned int) model.nvertices;
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36
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37 fprintf(fh,
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38 "ply\n"
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39 "format binary_little_endian 1.0\n"
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40 "element vertex %d\n"
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41 "property float x\n"
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42 "property float y\n"
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43 "property float z\n",
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44 model.nvertices);
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45
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46 if (writeNormals)
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47 {
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48 fprintf(fh,
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49 "property float nx\n"
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50 "property float ny\n"
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51 "property float nz\n"
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52 );
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53 }
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54
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55 fprintf(fh,
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56 "element face %d\n"
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57 "property list uchar uint vertex_indices\n"
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58 "end_header\n",
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59 model.nfaces);
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60
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61 for (int nvert = 0; nvert < model.nvertices; nvert++)
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62 {
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63 const DMVector3 &vert = model.vertices[nvert];
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64
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65 if (!dmFWriteFloatLE(fh, vert.x) ||
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66 !dmFWriteFloatLE(fh, vert.y) ||
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67 !dmFWriteFloatLE(fh, vert.z))
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68 return false;
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69
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70 if (writeNormals)
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71 {
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72 const DMVector3 &vert = model.normals[nvert];
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73 if (!dmFWriteFloatLE(fh, vert.x) ||
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74 !dmFWriteFloatLE(fh, vert.y) ||
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75 !dmFWriteFloatLE(fh, vert.z))
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76 return false;
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77 }
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78 }
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79
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80 for (int nface = 0, offs = 0; nface < model.nfaces; nface++)
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81 {
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82 if (!dmFWriteU8(fh, 3))
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83 return false;
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84
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85 for (int nvert = 0; nvert < 3; nvert++)
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86 {
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87 if (!dmFWriteU32LE(fh, model.faces[offs++]))
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88 return false;
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89 }
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90 }
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91
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92 return true;
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93 }
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94
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95
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96 int main(int argc, char *argv[])
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97 {
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98 bool
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99 optShowHelp = false;
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100 std::string optInputFilename, optOutputFilename;
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101 FILE *outFile = NULL;
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102 DMModel model;
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103
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104 // Check commandline argument for enabling shaders
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105 for (int narg = 1; narg < argc; narg++)
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106 {
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107 char *arg = argv[narg];
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108 if (arg[0] == '-')
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109 {
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110 char *opt = arg + 1;
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111
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112 if ((opt[0] == '-' && opt[1] == 'h' && opt[2] == 'e') ||
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113 opt[0] == '?' || (opt[0] == '-' && opt[1] == '?'))
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114 {
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115 optShowHelp = true;
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116 break;
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117 }
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118 else
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119 if (opt[0] == '-')
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120 opt++;
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121
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122 switch (opt[0])
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123 {
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124 default:
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125 printf("Unknown option '%s'.\n", opt);
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126 goto exit;
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127 }
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128 }
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129 else
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130 {
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131 std::string tmp = std::string(arg);
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132 if (tmp.empty())
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133 {
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134 printf("ERROR: Invalid empty filename.\n");
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135 goto exit;
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136 }
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137
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138 if (optInputFilename.empty())
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139 optInputFilename = tmp;
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140 else
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
141 if (optOutputFilename.empty())
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
142 optOutputFilename = tmp;
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
143 else
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
144 {
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
145 printf("ERROR: Too many filenames specified.\n");
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
146 goto exit;
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
147 }
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
148 }
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
149 }
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
150
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
151 if (optInputFilename.empty() || optOutputFilename.empty() || optShowHelp)
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
152 {
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
153 printf(
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
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154 "ply2bin - Convert ASCII PLY file to binary format PLY\n"
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
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155 "Usage: %s [options] <input.ply> <output.ply>\n"
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
156 "-? Show this help\n"
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
157 "\n",
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
158 argv[0]
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
159 );
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
160
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
161 goto exit;
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
162 }
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
163
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
164 if (!model.loadFromPLY(optInputFilename))
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
165 goto exit;
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
166
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
167 if ((outFile = fopen(optOutputFilename.c_str(), "wb")) == NULL)
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
168 {
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
169 printf("ERROR: Could not create output file.\n");
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
170 goto exit;
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
171 }
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
172
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
173 printf("Writing output PLY ..\n");
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
174 if (!dmFWriteBINPLY(outFile, model))
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
175 {
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
176 printf("ERROR: Error writing output PLY file.\n");
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
177 }
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
178
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
179 exit:
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
180 if (outFile != NULL)
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
181 fclose(outFile);
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
182
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
183 return 0;
1a0e823283e4 Add simple converter for converting ASCII ply files into binary format.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
184 }