[162] | 1 | #include "SceneGraph.h" |
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| 2 | #include "Exporter.h" |
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| 3 | #include "UnigraphicsParser.h" |
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[170] | 4 | #include "X3dParser.h" |
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[65] | 5 | #include "Preprocessor.h" |
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[235] | 6 | #include "ViewCell.h" |
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| 7 | #include "Environment.h" |
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[65] | 8 | |
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[262] | 9 | Preprocessor::Preprocessor(): |
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| 10 | mKdTree(NULL), |
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| 11 | mBspTree(NULL) |
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| 12 | { |
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| 13 | } |
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[261] | 14 | |
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| 15 | Preprocessor::~Preprocessor() |
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| 16 | { |
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[262] | 17 | CLEAR_CONTAINER(mViewCells);
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[261] | 18 | DEL_PTR(mBspTree); |
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[262] | 19 | DEL_PTR(mKdTree); |
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[261] | 20 | } |
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| 21 | |
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[162] | 22 | bool |
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[261] | 23 | Preprocessor::LoadViewCells(const string filename) |
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[162] | 24 | { |
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[261] | 25 | X3dParser *parser = new X3dParser; |
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| 26 | |
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| 27 | bool result = parser->ParseFile(filename, mViewCells); |
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| 28 | |
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| 29 | if (result) |
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| 30 | { |
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[262] | 31 | Exporter *exporter = Exporter::GetExporter("viewcells.x3d"); |
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[261] | 32 | |
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| 33 | if (exporter) |
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[262] | 34 | { |
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[261] | 35 | exporter->ExportViewCells(&mViewCells); |
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[262] | 36 | delete exporter; |
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| 37 | } |
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[261] | 38 | |
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[262] | 39 | Debug << "Generating view cells" << endl; |
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[261] | 40 | GenerateViewCells(); |
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[262] | 41 | Debug << "Generated view cells" << endl; |
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[261] | 42 | } |
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[262] | 43 | |
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| 44 | DEL_PTR(parser); |
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| 45 | |
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| 46 | |
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[261] | 47 | return result; |
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[162] | 48 | } |
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[65] | 49 | |
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[162] | 50 | bool |
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[261] | 51 | Preprocessor::GenerateViewCells() |
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[162] | 52 | { |
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[235] | 53 | return BuildBspTree(); |
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[162] | 54 | } |
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[65] | 55 | |
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[162] | 56 | bool |
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| 57 | Preprocessor::LoadScene(const string filename) |
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| 58 | { |
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| 59 | // use leaf nodes of the original spatial hiearrchy as occludees |
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| 60 | |
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| 61 | mSceneGraph = new SceneGraph; |
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[170] | 62 | |
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| 63 | |
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| 64 | Parser *parser; |
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| 65 | |
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| 66 | if (strstr(filename.c_str(), ".x3d")) |
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| 67 | parser = new X3dParser; |
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| 68 | else |
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| 69 | parser = new UnigraphicsParser; |
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| 70 | |
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[162] | 71 | bool result = parser->ParseFile(filename, &mSceneGraph->mRoot); |
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[65] | 72 | |
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[261] | 73 | delete parser; |
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| 74 | |
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[162] | 75 | return result; |
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| 76 | } |
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| 77 | |
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| 78 | bool |
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| 79 | Preprocessor::ExportPreprocessedData(const string filename) |
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| 80 | { |
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| 81 | return false; |
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| 82 | } |
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| 83 | |
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| 84 | bool |
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| 85 | Preprocessor::BuildKdTree() |
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| 86 | { |
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| 87 | mKdTree = new KdTree; |
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| 88 | // add mesh instances of the scene graph to the root of the tree |
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| 89 | KdLeaf *root = (KdLeaf *)mKdTree->GetRoot(); |
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[176] | 90 | mSceneGraph->CollectObjects(&root->mObjects); |
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[65] | 91 | |
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[162] | 92 | mKdTree->Construct(); |
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| 93 | return true; |
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| 94 | } |
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[65] | 95 | |
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[234] | 96 | bool |
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| 97 | Preprocessor::BuildBspTree() |
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| 98 | { |
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[262] | 99 | DEL_PTR(mBspTree); |
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[235] | 100 | mBspTree = new BspTree(); |
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| 101 | |
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| 102 | char constructionMethodStr[64]; |
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[238] | 103 | int maxViewCells = 0; |
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[235] | 104 | |
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[238] | 105 | environment->GetIntValue("BspTree.maxViewCells", maxViewCells); |
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[237] | 106 | environment->GetStringValue("BspTree.constructionMethod", constructionMethodStr); |
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[235] | 107 | |
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| 108 | int constructionMethod = BspTree::VIEWCELLS; |
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[237] | 109 | |
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[235] | 110 | if (strcmp(constructionMethodStr, "viewCells") == 0) |
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| 111 | constructionMethod = BspTree::VIEWCELLS; |
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| 112 | else if (strcmp(constructionMethodStr, "sceneGeometry") == 0) |
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| 113 | constructionMethod = BspTree::SCENE_GEOMETRY; |
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[260] | 114 | else if (strcmp(constructionMethodStr, "rays") == 0) |
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| 115 | constructionMethod = BspTree::RAYS; |
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[235] | 116 | else |
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| 117 | { |
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| 118 | cerr << "Wrong bsp construction method " << constructionMethodStr << endl; |
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| 119 | exit(1); |
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| 120 | } |
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| 121 | |
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[262] | 122 | ObjectContainer objects; |
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| 123 | RayContainer rays; |
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| 124 | |
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[235] | 125 | switch (constructionMethod) |
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| 126 | { |
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| 127 | case BspTree::VIEWCELLS: |
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[262] | 128 | Debug << "Construction method: view cells\n"; |
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| 129 | |
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[261] | 130 | // derive view cells from the scene objects |
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[262] | 131 | if (mViewCells.empty()) |
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| 132 | { |
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| 133 | Debug << "View cells empty => generating new ones\n"; Debug.flush(); |
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| 134 | mSceneGraph->CollectObjects(&objects); |
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| 135 | ViewCell::DeriveViewCells(objects, mViewCells, maxViewCells); |
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| 136 | } |
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| 137 | |
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[261] | 138 | mBspTree->Construct(mViewCells); |
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[235] | 139 | break; |
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| 140 | case BspTree::SCENE_GEOMETRY: |
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[262] | 141 | Debug << "Construction method: geometry\n"; |
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| 142 | |
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| 143 | CLEAR_CONTAINER(mViewCells); // we generate new view cells |
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| 144 | mSceneGraph->CollectObjects(&objects); |
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| 145 | |
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[261] | 146 | mBspTree->Construct(objects, &mViewCells); |
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[235] | 147 | break; |
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[261] | 148 | case BspTree::RAYS: |
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[262] | 149 | Debug << "Construction method: rays\n"; |
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| 150 | |
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| 151 | CLEAR_CONTAINER(mViewCells); // we generate new view cells |
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| 152 | |
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| 153 | mBspTree->Construct(rays, &mViewCells); |
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[261] | 154 | break; |
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[235] | 155 | default: |
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[262] | 156 | Debug << "Error: Method not available\n"; |
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[235] | 157 | break; |
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| 158 | } |
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| 159 | return true; |
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[234] | 160 | } |
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[162] | 161 | |
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[234] | 162 | |
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[162] | 163 | void |
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| 164 | Preprocessor::KdTreeStatistics(ostream &s) |
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[65] | 165 | { |
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[162] | 166 | s<<mKdTree->GetStatistics(); |
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[65] | 167 | } |
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[162] | 168 | |
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[234] | 169 | void |
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| 170 | Preprocessor::BspTreeStatistics(ostream &s) |
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| 171 | { |
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[235] | 172 | s << mBspTree->GetStatistics(); |
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[234] | 173 | } |
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[162] | 174 | |
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| 175 | bool |
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| 176 | Preprocessor::Export( const string filename, |
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| 177 | const bool scene, |
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[242] | 178 | const bool kdtree, |
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| 179 | const bool bsptree |
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[162] | 180 | ) |
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| 181 | { |
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| 182 | Exporter *exporter = Exporter::GetExporter(filename); |
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| 183 | |
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| 184 | if (exporter) { |
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| 185 | if (scene) |
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| 186 | exporter->ExportScene(mSceneGraph->mRoot); |
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| 187 | |
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| 188 | if (kdtree) { |
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| 189 | exporter->SetWireframe(); |
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| 190 | exporter->ExportKdTree(*mKdTree); |
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| 191 | } |
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| 192 | |
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[242] | 193 | if (bsptree) { |
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| 194 | exporter->SetWireframe(); |
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| 195 | exporter->ExportBspTree(*mBspTree); |
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| 196 | } |
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| 197 | |
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[162] | 198 | delete exporter; |
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| 199 | return true; |
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| 200 | } |
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| 201 | |
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| 202 | return false; |
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| 203 | } |
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| 204 | |
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| 205 | |
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| 206 | |
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