[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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[162] | 9 | |
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| 10 | bool |
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| 11 | Preprocessor::LoadViewcells(const string filename) |
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| 12 | { |
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| 13 | |
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| 14 | return true; |
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| 15 | } |
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[65] | 16 | |
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[162] | 17 | bool |
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| 18 | Preprocessor::GenerateViewcells() |
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| 19 | { |
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[235] | 20 | return BuildBspTree(); |
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[162] | 21 | } |
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[65] | 22 | |
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[162] | 23 | bool |
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| 24 | Preprocessor::LoadScene(const string filename) |
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| 25 | { |
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| 26 | // use leaf nodes of the original spatial hiearrchy as occludees |
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| 27 | |
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| 28 | mSceneGraph = new SceneGraph; |
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[170] | 29 | |
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| 30 | |
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| 31 | Parser *parser; |
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| 32 | |
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| 33 | if (strstr(filename.c_str(), ".x3d")) |
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| 34 | parser = new X3dParser; |
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| 35 | else |
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| 36 | parser = new UnigraphicsParser; |
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| 37 | |
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[162] | 38 | bool result = parser->ParseFile(filename, &mSceneGraph->mRoot); |
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[65] | 39 | |
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[162] | 40 | return result; |
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| 41 | } |
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| 42 | |
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| 43 | bool |
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| 44 | Preprocessor::ExportPreprocessedData(const string filename) |
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| 45 | { |
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| 46 | return false; |
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| 47 | } |
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| 48 | |
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| 49 | bool |
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| 50 | Preprocessor::BuildKdTree() |
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| 51 | { |
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| 52 | mKdTree = new KdTree; |
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| 53 | // add mesh instances of the scene graph to the root of the tree |
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| 54 | KdLeaf *root = (KdLeaf *)mKdTree->GetRoot(); |
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[176] | 55 | mSceneGraph->CollectObjects(&root->mObjects); |
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[65] | 56 | |
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[162] | 57 | mKdTree->Construct(); |
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| 58 | return true; |
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| 59 | } |
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[65] | 60 | |
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[234] | 61 | bool |
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| 62 | Preprocessor::BuildBspTree() |
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| 63 | { |
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[235] | 64 | ObjectContainer objects; |
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| 65 | mSceneGraph->CollectObjects(&objects); |
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| 66 | |
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| 67 | mBspTree = new BspTree(); |
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| 68 | |
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| 69 | char constructionMethodStr[64]; |
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| 70 | |
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| 71 | environment->GetStringValue("BspTree.constructionMethod",
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| 72 | constructionMethodStr); |
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| 73 | |
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| 74 | int constructionMethod = BspTree::VIEWCELLS; |
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| 75 | |
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| 76 | if (strcmp(constructionMethodStr, "viewCells") == 0) |
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| 77 | constructionMethod = BspTree::VIEWCELLS; |
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| 78 | else if (strcmp(constructionMethodStr, "sceneGeometry") == 0) |
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| 79 | constructionMethod = BspTree::SCENE_GEOMETRY; |
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| 80 | else |
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| 81 | { |
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| 82 | cerr << "Wrong bsp construction method " << constructionMethodStr << endl; |
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| 83 | exit(1); |
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| 84 | } |
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| 85 | |
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| 86 | Debug << constructionMethodStr << endl; |
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| 87 | |
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| 88 | switch (constructionMethod) |
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| 89 | { |
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| 90 | case BspTree::VIEWCELLS: |
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| 91 | mViewcells.clear(); |
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| 92 | // derive viewcells from the scene objects |
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| 93 | ViewCell::DeriveViewCells(objects, mViewcells, 1000); |
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| 94 | mBspTree->Construct(mViewcells); |
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| 95 | break; |
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| 96 | case BspTree::SCENE_GEOMETRY: |
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| 97 | mBspTree->Construct(objects); |
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| 98 | break; |
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| 99 | default: |
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| 100 | break; |
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| 101 | } |
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| 102 | return true; |
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[234] | 103 | } |
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[162] | 104 | |
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[234] | 105 | |
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| 106 | |
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[162] | 107 | void |
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| 108 | Preprocessor::KdTreeStatistics(ostream &s) |
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[65] | 109 | { |
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[162] | 110 | s<<mKdTree->GetStatistics(); |
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[65] | 111 | } |
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[162] | 112 | |
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[234] | 113 | void |
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| 114 | Preprocessor::BspTreeStatistics(ostream &s) |
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| 115 | { |
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[235] | 116 | s << mBspTree->GetStatistics(); |
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[234] | 117 | } |
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[162] | 118 | |
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| 119 | bool |
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| 120 | Preprocessor::Export( const string filename, |
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| 121 | const bool scene, |
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| 122 | const bool kdtree |
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| 123 | ) |
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| 124 | { |
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| 125 | Exporter *exporter = Exporter::GetExporter(filename); |
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| 126 | |
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| 127 | if (exporter) { |
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| 128 | if (scene) |
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| 129 | exporter->ExportScene(mSceneGraph->mRoot); |
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| 130 | |
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| 131 | if (kdtree) { |
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| 132 | exporter->SetWireframe(); |
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| 133 | exporter->ExportKdTree(*mKdTree); |
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| 134 | } |
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| 135 | |
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| 136 | delete exporter; |
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| 137 | return true; |
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| 138 | } |
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| 139 | |
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| 140 | return false; |
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| 141 | } |
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| 142 | |
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| 143 | |
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| 144 | |
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