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IgSurfaceOperation.cc File Reference

#include "Iguana/Inventor/interface/IgSurfaceOperation.h"
#include "Iguana/Inventor/interface/IgBSPTriangle.h"
#include "Iguana/Inventor/interface/IgBSPTree.h"
#include <Inventor/nodes/SoIndexedFaceSet.h>
#include <Inventor/nodes/SoVertexProperty.h>
#include <Inventor/nodes/SoShape.h>
#include <Inventor/nodes/SoNode.h>
#include <Inventor/SbLinear.h>
#include <cassert>
#include <map>

Go to the source code of this file.

Classes
struct	SbVec3fPtrComparison
Functions
static SoIndexedFaceSet *	listToNode (IgBSPTriangle::List *list)

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Function Documentation

static SoIndexedFaceSet* listToNode

(

IgBSPTriangle::List *

list

)

[static]

Definition at line 42 of file IgSurfaceOperation.cc.

References end, i, j, and k.

Referenced by IgSurfaceOperation::apply().

{
    SoIndexedFaceSet *indexedFaceSet = new SoIndexedFaceSet;
    SoVertexProperty *vertexProperty = new SoVertexProperty;
            
    int lastIndex = 0;
    int j = 0;
    
    std::map <const SbVec3f, int, SbVec3fPtrComparison> indicesMap;
    
    int vertexIndices[4] = {0, 0, 0, -1};
    IgBSPTriangle::List::iterator end (list->end ());
    for (IgBSPTriangle::List::iterator i = list->begin ();
        i != end;
        i++)
    {
        // Updates the vertexMap with the vertices from the new
        // triangle.
        for (int k = 0; k < 3; k++)
        {
            const SbVec3f &vertex = (*i)->v (k);
            if (indicesMap.find (vertex) == indicesMap.end ())
            {
                vertexProperty->vertex.setValues (lastIndex, 1, &vertex);
                indicesMap[vertex] = lastIndex++;
            }
            vertexIndices[k] = indicesMap[vertex];          
        }
    
        indexedFaceSet->coordIndex.setValues (j, 4, vertexIndices);
        j += 4;    
    }

    //    std::cerr << "Num of vertexes: " << lastIndex
    //        << "Num of faces: " << j/4 << std::endl;
    
    indexedFaceSet->vertexProperty = vertexProperty;
            
    return indexedFaceSet;
}

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