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added option to add "gutter" space around planar parametrization (default is no gutter)

This commit is contained in:
Marco Callieri 2015-11-04 12:32:35 +00:00
parent e4d83262fe
commit a214eb3b66
1 changed files with 39 additions and 35 deletions
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74
vcg/complex/algorithms/update/texture.h
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@ -49,48 +49,52 @@ typedef typename MeshType::FaceType FaceType;
typedef typename MeshType::FacePointer FacePointer;
typedef typename MeshType::FaceIterator FaceIterator;
static void WedgeTexFromPlane(ComputeMeshType &m, const Point3<ScalarType> &uVec, const Point3<ScalarType> &vVec, bool aspectRatio)
static void WedgeTexFromPlane(ComputeMeshType &m, const Point3<ScalarType> &uVec, const Point3<ScalarType> &vVec, bool aspectRatio, ScalarType sideGutter=0.0)
{
// First just project
Box2f bb;
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());
}
}
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;
bb.Add((*fi).WT(i).P());
}
}
ScalarType wideU = bb.max[0]- bb.min[0];
ScalarType wideV = bb.max[1]- bb.min[1];
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;
}
if (sideGutter>0.0)
{
ScalarType deltaGutter = std::min(wideU, wideV) * min(sideGutter, (ScalarType)0.5);
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;
}
}
bb.max[0] += deltaGutter;
bb.min[0] -= deltaGutter;
bb.max[1] += deltaGutter;
bb.min[1] -= deltaGutter;
wideU = bb.max[0] - bb.min[0];
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)