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added WedgeTexFromPlane function to create simple planar parametrizations

This commit is contained in:
Paolo Cignoni 2011-05-20 15:15:44 +00:00
parent d7af2e62b3
commit a9e5d6d957
1 changed files with 37 additions and 7 deletions
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44
vcg/complex/algorithms/update/texture.h
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@ -20,11 +20,7 @@
* for more details. *
* *
****************************************************************************/
/****************************************************************************
History
$Log: position.h,v $
****************************************************************************/
#ifndef __VCG_TRI_UPDATE_TEXTURE
#define __VCG_TRI_UPDATE_TEXTURE
@ -38,7 +34,7 @@ namespace tri {
/// \headerfile texture.h vcg/complex/algorithms/update/texture.h
/// \brief This class is used to update vertex position according to a transformation matrix.
/// \brief This class is used to update/generate texcoord position according to various critera. .
template <class ComputeMeshType>
class UpdateTexture
{
@ -53,14 +49,48 @@ typedef typename MeshType::FaceType FaceType;
typedef typename MeshType::FacePointer FacePointer;
typedef typename MeshType::FaceIterator FaceIterator;
static void WedgeTexFromPlanar(ComputeMeshType &m, Plane3<ScalarType> &pl)
static void WedgeTexFromPlane(ComputeMeshType &m, const Point3<ScalarType> &uVec, const Point3<ScalarType> &vVec, bool aspectRatio)
{
// First just project
FaceIterator fi;
for(fi=m.face.begin();fi!=m.face.end();++fi)
if(!(*fi).IsD())
{
for(int i=0;i<3;++i)
{
(*fi).WT(i).U()= (*fi).V(i)->cP() * uVec;
(*fi).WT(i).V()= (*fi).V(i)->cP() * vVec;
}
}
// second Loop normalize to
Box2f bb;
for(fi=m.face.begin();fi!=m.face.end();++fi)
if(!(*fi).IsD())
{
for(int i=0;i<3;++i)
{
bb.Add((*fi).WT(i).P());
}
}
ScalarType wideU = bb.max[0]- bb.min[0];
ScalarType wideV = bb.max[1]- bb.min[1];
if(aspectRatio) {
wideU = std::max(wideU,wideV);
wideV = wideU;
}
for(fi=m.face.begin();fi!=m.face.end();++fi)
if(!(*fi).IsD())
{
for(int i=0;i<3;++i)
{
(*fi).WT(i).U() = ((*fi).WT(i).U() - bb.min[0]) / wideU;
(*fi).WT(i).V() = ((*fi).WT(i).V() - bb.min[1]) / wideV;
}
}
}
static void WedgeTexFromCamera(ComputeMeshType &m, Plane3<ScalarType> &pl)