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#include <fstream>
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#include <string>
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#include "x3d_save.h"
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#include "HMesh/FaceCirculator.h"
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namespace HMeshUtil
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{
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using namespace std;
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using namespace CGLA;
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using namespace HMesh;
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namespace
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{
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const string X3D_BEGIN =
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"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
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"<!DOCTYPE X3D PUBLIC \"http://www.web3D.org/TaskGroups/x3d/translation/x3d-compact.dtd\"\n"
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"\"/www.web3d.org/TaskGroups/x3d/translation/x3d-compact.dtd\">\n"
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"<X3D>\n"
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" <head>\n"
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" </head>\n"
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" <Scene>\n"
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" <Viewpoint description=\"Pyramid\" orientation=\"0 1 0 .2\" position=\"4 0 25\"/>\n"
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" <NavigationInfo type=\"EXAMINE ANY\"/>\n";
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const string X3D_END =
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" </Scene>\n"
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"</X3D>\n";
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}
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bool x3d_save(const std::string& filename, Manifold& m)
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{
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ofstream os(filename.data());
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if(os.bad()) return false;
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os << X3D_BEGIN << endl;
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os << "<Shape>\n"
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<< "<Appearance>\n"
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<< "<Material diffuseColor=\"0.8 0.8 0.2\" specularColor=\"0 0 0.5\"/>\n"
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<< "</Appearance>\n";
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os << "<Coordinate point=\"" << endl;
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vector<int> touch(m.no_vertices());
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int max_vertex_idx=0;
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for(VertexIter vi = m.vertices_begin(); vi != m.vertices_end();
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++vi,++max_vertex_idx)
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{
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touch[max_vertex_idx] = vi->touched;
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vi->touched = max_vertex_idx;
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Vec3f p = vi->pos;
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os << p[0] << " " << p[1] << " " << p[2] << "\n";
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}
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os << "\"/>" << endl;
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os << "<IndexedFaceSet coordIndex=\"" << endl;
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for(FaceIter fi = m.faces_begin();fi != m.faces_end(); ++fi)
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{
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std::vector<int> verts;
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for(FaceCirculator fc(fi);!fc.end();++fc)
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{
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int vertex_idx = fc.get_vertex()->touched;
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if(vertex_idx >= max_vertex_idx)
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{
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cout << vertex_idx << " " << max_vertex_idx << endl;
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verts.push_back(0);
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}
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else
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{
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assert(vertex_idx < max_vertex_idx);
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verts.push_back(vertex_idx);
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}
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}
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//assert(verts.size()==3);
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for(int i=1;i<(verts.size()-1);++i)
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{
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os << verts[0] << " " << verts[i] << " " << verts[i+1] << " -1\n";
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}
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}
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os << "\">" << endl;
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os << "</IndexedFaceSet>\n"
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<< "</Shape>\n";
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os << X3D_END << endl;
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max_vertex_idx=0;
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for(VertexIter vi = m.vertices_begin(); vi != m.vertices_end(); ++vi,
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++max_vertex_idx)
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vi->touched = touch[max_vertex_idx];
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return false;
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}
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}
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