[162] | 1 | //#include <boost/algorithm/string.hpp>
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| 2 |
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| 3 | #include <stack>
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| 4 | #include "SceneGraph.h"
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| 5 | #include "X3dExporter.h"
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[339] | 6 | #include "Intersectable.h"
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[162] | 7 |
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| 8 |
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| 9 | bool
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| 10 | SceneGraph::Export( const string filename )
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| 11 | {
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| 12 | if (strstr(filename.c_str(), ".x3d")) {
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| 13 | X3dExporter exporter(filename);
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| 14 | exporter.ExportScene(mRoot);
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| 15 | return true;
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| 16 | } else {
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| 17 | cerr<<"Error: Currently unsuported export format, filename "<<filename<<endl;
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| 18 |
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| 19 | }
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| 20 |
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| 21 |
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| 22 | return false;
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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 | int
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[176] | 28 | SceneGraph::CollectObjects(ObjectContainer *instances)
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[162] | 29 | {
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[490] | 30 | instances->clear();
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[162] | 31 | int number = 0;
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| 32 | stack<SceneGraphNode *> nodeStack;
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[176] | 33 |
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[162] | 34 | nodeStack.push(mRoot);
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| 35 |
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| 36 | while (!nodeStack.empty()) {
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| 37 | SceneGraphNode *node = nodeStack.top();
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| 38 | nodeStack.pop();
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| 39 |
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[176] | 40 | ObjectContainer::const_iterator mi = node->mGeometry.begin();
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[162] | 41 | for (; mi != node->mGeometry.end(); mi++)
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[490] | 42 | instances->push_back(*mi);
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| 43 |
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[162] | 44 | SceneGraphNodeContainer::iterator ni = node->mChildren.begin();
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| 45 | for (; ni != node->mChildren.end(); ni++) {
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| 46 | nodeStack.push(*ni);
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| 47 | number++;
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| 48 | }
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| 49 |
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| 50 | }
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| 51 | return number;
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| 52 | }
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[339] | 53 |
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| 54 |
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| 55 | int
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| 56 | SceneGraph::AssignObjectIds()
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| 57 | {
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| 58 | int id = 1;
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| 59 | stack<SceneGraphNode *> nodeStack;
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| 60 |
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| 61 | nodeStack.push(mRoot);
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| 62 |
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| 63 | while (!nodeStack.empty()) {
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| 64 | SceneGraphNode *node = nodeStack.top();
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| 65 | nodeStack.pop();
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| 66 |
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| 67 | ObjectContainer::const_iterator mi = node->mGeometry.begin();
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| 68 | for (; mi != node->mGeometry.end(); mi++)
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| 69 | (*mi)->SetId(id++);
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| 70 |
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| 71 | SceneGraphNodeContainer::iterator ni = node->mChildren.begin();
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| 72 | for (; ni != node->mChildren.end(); ni++) {
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| 73 | nodeStack.push(*ni);
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| 74 | }
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| 75 | }
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| 76 | // return max id
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| 77 | return id;
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| 78 | }
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[387] | 79 |
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| 80 | void
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| 81 | SceneGraph::GetStatistics(int &intersectables, int &faces) const
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| 82 | {
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| 83 | stack<SceneGraphNode *> nodeStack;
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| 84 |
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| 85 | nodeStack.push(mRoot);
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| 86 | faces = 0;
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| 87 | intersectables = 0;
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| 88 | while (!nodeStack.empty()) {
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| 89 | SceneGraphNode *node = nodeStack.top();
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| 90 | nodeStack.pop();
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| 91 |
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| 92 | ObjectContainer::const_iterator mi = node->mGeometry.begin();
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| 93 | for (; mi != node->mGeometry.end(); mi++) {
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| 94 | intersectables++;
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| 95 | faces += (*mi)->NumberOfFaces();
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| 96 | }
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| 97 |
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| 98 | SceneGraphNodeContainer::iterator ni = node->mChildren.begin();
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| 99 | for (; ni != node->mChildren.end(); ni++) {
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| 100 | nodeStack.push(*ni);
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| 101 | }
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| 102 | }
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| 103 |
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| 104 | }
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[492] | 105 |
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| 106 |
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| 107 | void
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| 108 | SceneGraphNode::UpdateBox()
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| 109 | {
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| 110 | AxisAlignedBox3 box;
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| 111 |
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| 112 | box.Initialize();
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| 113 |
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| 114 | ObjectContainer::const_iterator mi = mGeometry.begin();
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| 115 | for (; mi != mGeometry.end(); mi++)
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| 116 | box.Include((*mi)->GetBox());
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| 117 |
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| 118 | SceneGraphNodeContainer::iterator ni = mChildren.begin();
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| 119 | for (; ni != mChildren.end(); ni++) {
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| 120 | (*ni)->UpdateBox();
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| 121 | box.Include((*ni)->mBox);
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| 122 | }
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| 123 |
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| 124 | mBox = box;
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| 125 | }
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