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CanvasListRef.cpp
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CanvasListRef.cpp
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// CanvasListRef Class
// Damien MATTEI
// implementations
template <class T> CanvasListRef<T>::CanvasListRef() {
#ifdef DISPLAY_CONSTRUCTOR
cout << "# CanvasListRef constructor CanvasListRef() #" << endl;
#endif
}
template <class T> CanvasListRef<T>::CanvasListRef(Object3DListRef<T> & object3dlist,Vision3D<T> & vision3d)
: vision3d(&vision3d), object3dlist(&object3dlist) {
#ifdef DISPLAY_CONSTRUCTOR
cout << "# CanvasListRef constructor CanvasListRef(Object3DListRef<T> & object3dlist,Vision3D<T> & vision3d) #" << endl;
#endif
}
template <class T> CanvasListRef<T>::~CanvasListRef() {
#ifdef DISPLAY_CONSTRUCTOR
cout << "# CanvasListRef destructor #" << endl;
#endif
}
// compute the 3D -> 2D for the object
// so we got the projected 2D points as result
// nota: this is intermediate calculus that could be used for debugging
template<class T> void CanvasListRef<T>::computePoints3DtoPoints2D(void) {
// finding the vertex list
list < Point3Did<T> > & vertexList = object3dlist->vertexList;
// iterate on the list to compute 3D to 2D projection
// note : i put typename hint because as it is a template definition
// compiler can not know the type it is until the compiler knows T
typename list< Point3Did<T> >::iterator iterP3Did;
for (iterP3Did = vertexList.begin(); iterP3Did != vertexList.end(); ++iterP3Did) {
points2d.push_back(Canvas<T>::vision3d.projection(*iterP3Did));
}
}
// compute the pixels, starting from 2D points
// nota: again this is a whole part calculus splitted in two for debugging
template<class T> void CanvasListRef<T>::computePoints2DtoPixels(void) {
// iterate on the list 2D point list to compute pixels
// note : i put typename hint because as it is a template definition
// compiler can not know the type it is until the compiler knows T
typename list< Point2D<T> >::iterator iterP2D;
for (iterP2D = points2d.begin(); iterP2D != points2d.end(); ++iterP2D) {
pixels.push_back(
Canvas<T>::vision3d.convert2ScreenCoord(
Canvas<T>::vision3d.convert2AbsPixel(
Canvas<T>::vision3d.convert2Pixel(*iterP2D))));
}
}
// compute the Pixels from Points3D for the object
template<class T> void CanvasListRef<T>::computePoints3DtoPixels(void) {
// deprecated function, see associatePt3Pix2InMap
// finding the vertex list
//list < Point3Did<T> > &vertexList = object3dlist->vertexList;
list < Point3Did<T> > vertexList = object3dlist->vertexList;
// iterate on the list to compute 3D to 2D projection and Pixels calculus
// note : i put typename hint because as it is a template definition
// compiler can not know the type it is until the compiler knows T
typename list< Point3Did<T> >::iterator iterP3Did;
for (iterP3Did = vertexList.begin(); iterP3Did != vertexList.end(); ++iterP3Did) {
pixels.push_back(Canvas<T>::vision3d.convert2ScreenCoord(
Canvas<T>::vision3d.convert2AbsPixel(
Canvas<T>::vision3d.convert2Pixel(
Canvas<T>::vision3d.projection(*iterP3Did)))));
}
}
// associate Point3Did and Pixels in list of pair (Point3Did <-> Pixel)
// not usefull instead we need an hash table
template<class T> void CanvasListRef<T>::associatePt3Pix2(void) {
// finding the vertex list
list < Point3Did<T> > vertexList = object3dlist->vertexList;
// the iterators on the three lists
typename list < pair < Point3Did<T> , Point2D<int> > >::iterator iterListPt3Pix2;
typename list< Point3Did<T> >::iterator iterP3Did;
// iterator on Pixel list
typename list< Point2D<int> >::iterator iterPixel;
for (iterP3Did = vertexList.begin(),iterPixel = pixels.begin(),iterListPt3Pix2 = listPt3Pix2.begin();
iterP3Did != vertexList.end();
++iterP3Did,++iterPixel,++iterListPt3Pix2) {
listPt3Pix2.push_back(make_pair(*iterP3Did,*iterPixel));
}
}
// associate Point3Did and Pixels in unordered map (Point3Did <-> Pixel)
template<class T> void CanvasListRef<T>::associatePt3Pix2InMap(void) {
Point2D<int> pt2;
// finding the vertex list
list < Point3Did<T> > vertexList = object3dlist->vertexList;
// iterate on the list to compute 3D to 2D projection and Pixels calculus
// note : i put typename hint because as it is a template definition
// compiler can not know the type it is until the compiler knows T
typename list< Point3Did<T> >::iterator iterP3Did;
#ifdef DEBUG
std::cout << "Canvas<T>::vision3d.getViewField() : " << Canvas<T>::vision3d.getViewField() << std::endl;
std::cout << "Canvas<T>::vision3d.getHalfScreenSizeX() : " << Canvas<T>::vision3d.getHalfScreenSizeX() << std::endl;
std::cout << "Canvas<T>::vision3d.getPixelInUnit() : " << Canvas<T>::vision3d.getPixelInUnit() << std::endl;
#endif
for (iterP3Did = vertexList.begin(); iterP3Did != vertexList.end(); ++iterP3Did) {
#ifdef DEBUG
std::cout << " *iterP3Did : " << *iterP3Did << std::endl;
//std::cout << " Canvas<T>::vision3d.projection(*iterP3Did) : " << Canvas<T>::vision3d.projection(*iterP3Did) << std::endl;
Point2D<float> ptproj = Canvas<T>::vision3d.projection(*iterP3Did);
std::cout << " ptproj : " << ptproj << std::endl;
Point2D<int> ptc2p = Canvas<T>::vision3d.convert2Pixel(ptproj);
std::cout << " ptc2p : " << ptc2p << std::endl;
#endif
pt2 = Canvas<T>::vision3d.convert2ScreenCoord(
Canvas<T>::vision3d.convert2AbsPixel(
Canvas<T>::vision3d.convert2Pixel(
Canvas<T>::vision3d.projection(*iterP3Did))));
std::cout << " pt2 : " << pt2 << std::endl;
htPointPixel[*iterP3Did] = pt2;
}
}
// display contents of hash table (Point3Did <-> Pixel)
template<class T> void CanvasListRef<T>::displayHTpointPixel(void) {
// finding the vertex list
list < Point3Did<T> > vertexList = object3dlist->vertexList;
// iterate on the list to compute 3D to 2D projection and Pixels calculus
// note : i put typename hint because as it is a template definition
// compiler can not know the type it is until the compiler knows T
typename list< Point3Did<T> >::iterator iterP3Did;
for (iterP3Did = vertexList.begin(); iterP3Did != vertexList.end(); ++iterP3Did) {
std::cout << *iterP3Did << " -> " << htPointPixel[*iterP3Did] << std::endl;
}
}