Subversion Repositories gelsvn

#include <iostream>
#include "Util/Timer.h"
#include "Util/Parse.h"
#include "Util/XmlParser.h"
#include "HMesh/Manifold.h"
#include "build_manifold.h"
#include "x3d_load.h"

using namespace CGLA;
using namespace Util;
using namespace std;
using namespace HMesh;

namespace HMesh
{
    namespace
    {
        vector<int> faces;
        vector<int> indices;
        vector<Vec3f> vertices;

        void coord_index_to_face_vec(const vector<int>& coord_index, 
                                     vector<int>& faces,
                                     vector<int>& indices)
        {
            Face face;
            size_t k=0;
            for(size_t i=0;i<coord_index.size();i++) 
            {
                int idx = coord_index[i];
                if (idx==-1) 
                {
                    faces.push_back(k);
                    k=0;
                }
                else
                {
                    indices.push_back(idx);
                    ++k;
                }
            }
        }
    }

    void handle_X3D(XmlElement& elem)
    {
        elem.process_elements();
    }

    void handle_Scene(XmlElement& elem)
    {
        elem.process_elements();
    }

    void handle_Transform(XmlElement& elem)
    {
        elem.process_elements();
    }

    void handle_Shape(XmlElement& elem)
    {
        cout << "Found shape" << endl;
        elem.process_elements();
        cout << "Shape ends" << endl;                           
    }

    void handle_IndexedFaceSet(XmlElement& elem)
    {
        vector<int> coord_index;
        parse(elem.atts["coordIndex"].c_str(), coord_index);
        coord_index_to_face_vec(coord_index, faces, indices);
        elem.process_elements();
    }

    void handle_Coordinate(XmlElement& elem)
    {
        parse(elem.atts["point"].c_str(), vertices);
    }

    int find_last_of(const std::string& F, const std::string& C)
    {
        size_t pos = F.find_last_of(C);
        if (pos == string::npos) 
            return -1;
        return pos;
    }

    bool x3d_load(const std::string& filename, Manifold& mani) 
    {
        faces.clear();
        indices.clear();
        vertices.clear();

        Timer tim;
        tim.start();

        std::string baseurl;
        int idx = s_max(find_last_of(filename, "\\"), 
                        find_last_of(filename, "/"));

        if(idx != -1)
          baseurl = std::string(filename.substr(0, idx+1));

        XmlDoc x3d_doc(filename.c_str());
        x3d_doc.add_handler("X3D", handle_X3D);
        x3d_doc.add_handler("Scene", handle_Scene);
        x3d_doc.add_handler("Shape", handle_Shape);
        x3d_doc.add_handler("Transform", handle_Transform);
        x3d_doc.add_handler("IndexedFaceSet", handle_IndexedFaceSet);
        x3d_doc.add_handler("Coordinate", handle_Coordinate);
        x3d_doc.process_elements();

        build_manifold(mani, vertices.size(), &vertices[0], faces.size(),
                       &faces[0], &indices[0]);

        cout << " Loading took " << tim.get_secs() << endl;
        return false;
    }
}