1 | #include <stdlib.h>
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2 | #include <iostream>
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3 | #include <list>
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4 | #include <map>
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5 | using namespace std;
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6 |
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7 | #include "Vector3.h"
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8 | #include "Mesh.h"
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9 | #include "SceneGraph.h"
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10 |
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11 | #include "UnigraphicsParser.h"
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12 | #include "Material.h"
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13 | #include "Environment.h"
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14 | #include "ResourceManager.h"
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15 |
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16 |
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17 | namespace GtpVisibilityPreprocessor {
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18 |
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19 | #define ROTATE_SCENE 0
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20 | // HACK
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21 | static void RotateMesh(Mesh *mesh)
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22 | {
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23 | VertexContainer::iterator it, it_end = mesh->mVertices.end();
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24 |
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25 | const float angle = 30.0f * PI / 180.0f;
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26 | const Matrix4x4 rot = RotationYMatrix(angle);
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27 |
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28 | for (it = mesh->mVertices.begin(); it != it_end; ++ it)
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29 | {
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30 | (*it) = rot * (*it);
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31 | }
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32 | }
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33 |
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34 |
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35 | struct ltstr
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36 | {
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37 | bool operator()(const string s1, const string s2) const
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38 | {
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39 | return s1 < s2;
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40 | }
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41 | };
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42 |
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43 | bool
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44 | UnigraphicsParser::ParseFile(const string filename,
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45 | SceneGraphNode *root,
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46 | const bool loadPolygonsAsMeshes,
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47 | vector<FaceParentInfo> *parents)
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48 | {
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49 | map<string, Vector3, ltstr> vht; // hash table for vectors
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50 | map<string, Vector3, ltstr> cht; // hash table for colors
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51 |
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52 | FILE *file;
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53 | char str[80];
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54 | Face *face;
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55 | //Vector3 *vptr;
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56 |
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57 | float x,y,z;
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58 | int i;
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59 |
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60 | if ((file = fopen(filename.c_str(),"rt")) == NULL)
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61 | return false;
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62 |
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63 | Mesh *currentMesh = MeshManager::GetSingleton()->CreateResource();
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64 |
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65 | int meshGrouping;
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66 | Environment::GetSingleton()->GetIntValue("Unigraphics.meshGrouping",
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67 | meshGrouping);
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68 |
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69 | while(fscanf(file,"%s",str)!=EOF) {
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70 | switch (str[0]) {
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71 |
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72 | case 'c':
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73 | if (strcmp(str,"c_rgb")==0)
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74 | {
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75 | cout<<"c";
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76 | cout.flush();
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77 | /* vertex */
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78 | fscanf(file,"%s",str); // label
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79 | fscanf(file,"%f %f %f",&x,&y,&z);
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80 |
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81 | cht[str] = Vector3(x,y,z); // swap the file coordinates
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82 | }
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83 | break;
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84 |
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85 |
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86 | case 'v': // is it v ?
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87 | cout<<".";
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88 | cout.flush();
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89 | /* vertex */
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90 | fscanf(file,"%s",str); // label
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91 | fscanf(file,"%f %f %f",&x,&y,&z);
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92 |
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93 | vht[str] = Vector3(x,z,-y); // swap the file coordinates
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94 | // vptr = new Vector3C(x,y,z); // swap the file coordinates
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95 | break;
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96 |
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97 | case 'f': {
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98 | cout<<"+";
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99 | vector<Vector3> vertices;
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100 | VertexIndexContainer vertexIndices;
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101 |
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102 | /* face */
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103 | fscanf(file,"%s",str); // label may be ?
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104 | if (str[0]!='(')
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105 | fscanf(file,"%s",str);
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106 |
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107 | i = 0; // index of the vertex
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108 |
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109 |
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110 | map<string, Vector3, ltstr>::const_iterator c = vht.find(&str[1]);
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111 |
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112 | if (c == vht.end()) {
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113 | cout<<"error reading file : "<<
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114 | filename<<" ---missing vertex:"<<str<<endl; exit(1);
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115 | }
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116 |
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117 | vertices.push_back((*c).second);
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118 |
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119 | fscanf(file,"%s",str); // get the vertex label
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120 |
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121 | while(str[0]!=')') {
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122 |
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123 | c = vht.find(str);
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124 |
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125 | if (c == vht.end())
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126 | {
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127 | cout<<"error reading file : "<<filename<<" -- missing vertex\n";
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128 | exit(1); }
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129 |
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130 | vertices.push_back((*c).second);
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131 | fscanf(file,"%s",str); // get the next vertex label
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132 | }
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133 |
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134 | // add vertices to the mesh vertex list
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135 | int index = (int)currentMesh->mVertices.size();
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136 | for (i=0; i < vertices.size(); i++, index++) {
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137 | currentMesh->mVertices.push_back(vertices[i]);
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138 | vertexIndices.push_back(index);
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139 | }
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140 |
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141 | face = new Face(vertexIndices);
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142 |
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143 | fscanf(file,"%s",str); // get the next vertex label
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144 |
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145 | if (str[0]!=';') {
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146 | c = cht.find(str);
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147 | if (currentMesh->mMaterial == NULL) {
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148 | Material *mat = MaterialManager::GetSingleton()->CreateResource();
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149 | if (c != cht.end()) {
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150 | mat->mDiffuseColor = RgbColor((*c).second.x, (*c).second.y, (*c).second.z);
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151 | currentMesh->mMaterial = mat;
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152 | }
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153 | else
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154 | currentMesh->AssignRandomMaterial();
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155 | }
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156 | }
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157 |
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158 | currentMesh->AddFace(face);
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159 | if (meshGrouping != 0 && currentMesh->mFaces.size() >= meshGrouping) {
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160 | if (ROTATE_SCENE)
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161 | RotateMesh(currentMesh);
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162 |
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163 | currentMesh->Preprocess();
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164 | // make an instance of this mesh
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165 | MeshInstance *mi = new MeshInstance(currentMesh);
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166 | root->mGeometry.push_back(mi);
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167 | currentMesh = MeshManager::GetSingleton()->CreateResource();
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168 | }
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169 | }
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170 | break;
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171 | } /* end face */
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172 |
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173 | // get the rest of the line
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174 | fgets(str,80,file);
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175 | }
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176 |
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177 | if (currentMesh->mVertices.size()) {
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178 | if (1)
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179 | RotateMesh(currentMesh);
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180 |
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181 | currentMesh->Preprocess();
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182 | MeshInstance *mi = new MeshInstance(currentMesh);
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183 | root->mGeometry.push_back(mi);
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184 | }
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185 |
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186 | fclose(file);
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187 | return true;
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188 | }
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189 |
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190 | }
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