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vcglib/vcg/complex/allocate.h

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/***************************************************************************
* VCGLib o o *
* Visual and Computer Graphics Library o o *
* _ O _ *
* Copyright(C) 2004 \/)\/ *
* Visual Computing Lab /\/| *
* ISTI - Italian National Research Council | *
* \ *
* All rights reserved. *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License (http://www.gnu.org/licenses/gpl.txt) *
* for more details. *
* *
****************************************************************************/
#ifndef __VCGLIB_TRIALLOCATOR
#define __VCGLIB_TRIALLOCATOR
#include <typeinfo>
#include <vector>
#include <map>
#include <string>
#include <set>
#include <assert.h>
#include <vcg/container/simple_temporary_data.h>
namespace vcg {
class PointerToAttribute
{
public:
SimpleTempDataBase * _handle; // pointer to the SimpleTempData that stores the attribute
std::string _name; // name of the attribute
int _sizeof; // size of the attribute type (used only with VMI loading)
int _padding; // padding (used only with VMI loading)
int n_attr; // unique ID of the attribute
void Resize(const int & sz){((SimpleTempDataBase *)_handle)->Resize(sz);}
void Reorder(std::vector<size_t> & newVertIndex){((SimpleTempDataBase *)_handle)->Reorder(newVertIndex);}
bool operator<(const PointerToAttribute b) const { return(_name.empty()&&b._name.empty())?(_handle < b._handle):( _name < b._name);}
};
namespace tri {
/** \addtogroup trimesh */
template<class MeshType>
size_t Index(MeshType &m, const typename MeshType::VertexType &v) {return &v-&*m.vert.begin();}
template<class MeshType>
size_t Index(MeshType &m, const typename MeshType::FaceType &f) {return &f-&*m.face.begin();}
template<class MeshType>
size_t Index(MeshType &m, const typename MeshType::EdgeType &e) {return &e-&*m.edge.begin();}
template<class MeshType>
size_t Index(MeshType &m, const typename MeshType::HEdgeType &h) {return &h-&*m.hedge.begin();}
template<class MeshType>
size_t Index(MeshType &m, const typename MeshType::VertexType *vp) {return vp-&*m.vert.begin();}
template<class MeshType>
size_t Index(MeshType &m, const typename MeshType::FaceType * fp) {return fp-&*m.face.begin();}
template<class MeshType>
size_t Index(MeshType &m, const typename MeshType::EdgeType* e) {return e-&*m.edge.begin();}
template<class MeshType>
size_t Index(MeshType &m, const typename MeshType::HEdgeType* h) {return h-&*m.hedge.begin();}
template <class MeshType, class ATTR_CONT>
void ReorderAttribute(ATTR_CONT &c,std::vector<size_t> & newVertIndex, MeshType & /* m */){
typename std::set<typename MeshType::PointerToAttribute>::iterator ai;
for(ai = c.begin(); ai != c.end(); ++ai)
((typename MeshType::PointerToAttribute)(*ai)).Reorder(newVertIndex);
}
template <class MeshType, class ATTR_CONT>
void ResizeAttribute(ATTR_CONT &c,const int & sz , MeshType &/*m*/){
typename std::set<typename MeshType::PointerToAttribute>::iterator ai;
for(ai =c.begin(); ai != c.end(); ++ai)
((typename MeshType::PointerToAttribute)(*ai)).Resize(sz);
}
/*@{*/
/// Class to safely add vertexes and faces to a mesh updating all the involved pointers.
/// It provides static memeber to add either vertex or faces to a trimesh.
template <class AllocateMeshType>
class Allocator
{
public:
typedef AllocateMeshType MeshType;
typedef typename MeshType::VertexType VertexType;
typedef typename MeshType::VertexPointer VertexPointer;
typedef typename MeshType::VertexIterator VertexIterator;
typedef typename MeshType::VertContainer VertContainer;
typedef typename MeshType::EdgeType EdgeType;
typedef typename MeshType::EdgePointer EdgePointer;
typedef typename MeshType::EdgeIterator EdgeIterator;
typedef typename MeshType::EdgeContainer EdgeContainer;
typedef typename MeshType::FaceType FaceType;
typedef typename MeshType::FacePointer FacePointer;
typedef typename MeshType::FaceIterator FaceIterator;
typedef typename MeshType::FaceContainer FaceContainer;
typedef typename MeshType::HEdgeType HEdgeType;
typedef typename MeshType::HEdgePointer HEdgePointer;
typedef typename MeshType::HEdgeIterator HEdgeIterator;
typedef typename MeshType::HEdgeContainer HEdgeContainer;
typedef typename MeshType::PointerToAttribute PointerToAttribute;
typedef typename std::set<PointerToAttribute>::iterator AttrIterator;
typedef typename std::set<PointerToAttribute>::const_iterator AttrConstIterator;
typedef typename std::set<PointerToAttribute >::iterator PAIte;
/** This class is used when allocating new vertexes and faces to update
the pointers that can be changed when resizing the involved vectors of vertex or faces.
It can also be used to prevent any update of the various mesh fields
(e.g. in case you are building all the connections by hand as in a importer);
*/
template<class SimplexPointerType>
class PointerUpdater
{
public:
PointerUpdater(void) : newBase(0), oldBase(0), newEnd(0), oldEnd(0), preventUpdateFlag(false) { ; }
void Clear(){newBase=oldBase=newEnd=oldEnd=0;}
void Update(SimplexPointerType &vp)
{
//if(vp>=newBase && vp<newEnd) return;
if(vp<oldBase || vp>oldEnd) return;
assert(vp>=oldBase);
assert(vp<oldEnd);
vp=newBase+(vp-oldBase);
if(!remap.empty())
vp = newBase + remap[vp-newBase];
}
bool NeedUpdate() {if((oldBase && newBase!=oldBase && !preventUpdateFlag) || !remap.empty()) return true; else return false;}
SimplexPointerType newBase;
SimplexPointerType oldBase;
SimplexPointerType newEnd;
SimplexPointerType oldEnd;
std::vector<size_t> remap;
bool preventUpdateFlag; /// when true no update is considered necessary.
};
/** Function to add n vertices to the mesh. The second parameter hold a vector of
pointers to pointer to elements of the mesh that should be updated after a
possible vector realloc.
@param n Il numero di vertici che si vuole aggiungere alla mesh.
@param local_var Vettore di variabili locali che rappresentano puntatori a vertici.
restituisce l'iteratore al primo elemento aggiunto.
*/
static VertexIterator AddVertices(MeshType &m,int n, PointerUpdater<VertexPointer> &pu)
{
VertexIterator last;
if(n == 0) return m.vert.end();
pu.Clear();
if(m.vert.empty()) pu.oldBase=0; // if the vector is empty we cannot find the last valid element
else {
pu.oldBase=&*m.vert.begin();
pu.oldEnd=&m.vert.back()+1;
}
m.vert.resize(m.vert.size()+n);
m.vn+=n;
typename std::set<PointerToAttribute>::iterator ai;
for(ai = m.vert_attr.begin(); ai != m.vert_attr.end(); ++ai)
((PointerToAttribute)(*ai)).Resize(m.vert.size());
pu.newBase = &*m.vert.begin();
pu.newEnd = &m.vert.back()+1;
if(pu.NeedUpdate())
{
FaceIterator fi;
for (fi=m.face.begin(); fi!=m.face.end(); ++fi)
if(!(*fi).IsD())
for(int i=0; i < (*fi).VN(); ++i)
if ((*fi).cV(i)!=0) pu.Update((*fi).V(i));
EdgeIterator ei;
for (ei=m.edge.begin(); ei!=m.edge.end(); ++ei)
if(!(*ei).IsD())
{
if(HasEVAdjacency (m)) { pu.Update((*ei).V(0));pu.Update((*ei).V(1));}
// if(HasEVAdjacency(m)) pu.Update((*ei).EVp());
}
HEdgeIterator hi;
for (hi=m.hedge.begin(); hi!=m.hedge.end(); ++hi)
if(!(*hi).IsD())
{
if(HasHVAdjacency (m))
{
pu.Update((*hi).HVp());
}
}
// e poiche' lo spazio e' cambiato si ricalcola anche last da zero
}
unsigned int siz=(unsigned int)m.vert.size()-n;
last = m.vert.begin();
advance(last,siz);
return last;// deve restituire l'iteratore alla prima faccia aggiunta;
}
/** Function to add n vertices to the mesh.
First wrapper, with no parameters
*/
static VertexIterator AddVertices(MeshType &m, int n)
{
PointerUpdater<VertexPointer> pu;
return AddVertices(m, n,pu);
}
/** Function to add n vertices to the mesh.
Second Wrapper, with a vector of vertex pointers to be updated.
*/
static VertexIterator AddVertices(MeshType &m, int n, std::vector<VertexPointer *> &local_vec)
{
PointerUpdater<VertexPointer> pu;
VertexIterator v_ret = AddVertices(m, n,pu);
typename std::vector<VertexPointer *>::iterator vi;
for(vi=local_vec.begin();vi!=local_vec.end();++vi)
pu.Update(**vi);
return v_ret;
}
/* ++++++++++ edges +++++++++++++ */
/** Function to add n edges to the mesh. The second parameter hold a vector of
pointers to pointer to elements of the mesh that should be updated after a
possible vector realloc.
@param n number of edges to be added
@param local_var vector of pointers to pointers to edges to be updated.
return an iterator to the first element added
*/
static EdgeIterator AddEdges(MeshType &m,int n, PointerUpdater<EdgePointer> &pu)
{
EdgeIterator last;
if(n == 0) return m.edge.end();
pu.Clear();
if(m.edge.empty()) pu.oldBase=0; // if the vector is empty we cannot find the last valid element
else {
pu.oldBase=&*m.edge.begin();
pu.oldEnd=&m.edge.back()+1;
}
m.edge.resize(m.edge.size()+n);
m.en+=n;
typename std::set<typename MeshType::PointerToAttribute>::iterator ai;
for(ai = m.edge_attr.begin(); ai != m.edge_attr.end(); ++ai)
((typename MeshType::PointerToAttribute)(*ai)).Resize(m.edge.size());
pu.newBase = &*m.edge.begin();
pu.newEnd = &m.edge.back()+1;
if(pu.NeedUpdate())
{
FaceIterator fi;
for (fi=m.face.begin(); fi!=m.face.end(); ++fi){
//if(HasFHEAdjacency(m))
// pu.Update((*fi).FHEp());
if(!(*fi).IsD())
for(int i=0; i < (*fi).VN(); ++i)
if ((*fi).cFEp(i)!=0) pu.Update((*fi).FEp(i));
}
VertexIterator vi;
if(HasVEAdjacency(m))
for (vi=m.vert.begin(); vi!=m.vert.end(); ++vi)
if(!(*vi).IsD())
if ((*vi).cVEp()!=0) pu.Update((*vi).VEp());
HEdgeIterator hi;
if(HasHEAdjacency(m))
for (hi=m.hedge.begin(); hi!=m.hedge.end(); ++hi)
if(!(*hi).IsD())
if ((*hi).cHEp()!=0) pu.Update((*hi).HEp());
}
unsigned int siz=(unsigned int)m.edge.size()-n;
last = m.edge.begin();
advance(last,siz);
return last;// deve restituire l'iteratore alla prima faccia aggiunta;
}
/** Function to add n vertices to the mesh.
First wrapper, with no parameters
*/
static EdgeIterator AddEdges(MeshType &m, int n)
{
PointerUpdater<EdgePointer> pu;
return AddEdges(m, n,pu);
}
/** Function to add n vertices to the mesh.
Second Wrapper, with a vector of vertex pointers to be updated.
*/
static EdgeIterator AddEdges(MeshType &m, int n, std::vector<EdgePointer*> &local_vec)
{
PointerUpdater<EdgePointer> pu;
EdgeIterator v_ret = AddEdges(m, n,pu);
typename std::vector<EdgePointer *>::iterator ei;
for(ei=local_vec.begin();ei!=local_vec.end();++ei)
pu.Update(**ei);
return v_ret;
}
/* ++++++++++ hedges +++++++++++++ */
/** Function to add n edges to the mesh. The second parameter hold a vector of
pointers to pointer to elements of the mesh that should be updated after a
possible vector realloc.
@param n number of edges to be added
@param local_var vector of pointers to pointers to edges to be updated.
return an iterator to the first element added
*/
static HEdgeIterator AddHEdges(MeshType &m,int n, PointerUpdater<HEdgePointer> &pu)
{
HEdgeIterator last;
if(n == 0) return m.hedge.end();
pu.Clear();
if(m.hedge.empty()) pu.oldBase=0; // if the vector is empty we cannot find the last valid element
else {
pu.oldBase=&*m.hedge.begin();
pu.oldEnd=&m.hedge.back()+1;
}
m.hedge.resize(m.hedge.size()+n);
m.hn+=n;
pu.newBase = &*m.hedge.begin();
pu.newEnd = &m.hedge.back()+1;
if(pu.NeedUpdate())
{
int ii = 0;
FaceIterator fi;
for (fi=m.face.begin(); fi!=m.face.end(); ++fi)
{
if(HasFHAdjacency(m))
if(!(*fi).IsD() && (*fi).FHp())
pu.Update((*fi).FHp());
}
{
VertexIterator vi;
for (vi=m.vert.begin(); vi!=m.vert.end(); ++vi)
if(HasVHAdjacency(m))
if(!(*vi).IsD())
if ((*vi).cVHp()!=0)
pu.Update((*vi).VHp());
}
{
EdgeIterator ei;
for (ei=m.edge.begin(); ei!=m.edge.end(); ++ei)
if(HasEHAdjacency(m))
if(!(*ei).IsD())
if ((*ei).cEHp()!=0)
pu.Update((*ei).EHp());
}
{
HEdgeIterator hi = m.hedge.begin();
while(ii < m.hn - n)// cycle on all the faces except the new ones
{
if(!(*hi).IsD())
{
if(HasHNextAdjacency(m)) pu.Update((*hi).HNp());
if(HasHPrevAdjacency(m)) pu.Update((*hi).HPp());
if(HasHOppAdjacency(m)) pu.Update((*hi).HOp());
++ii;
}
++hi;
}
}
}
unsigned int siz = (unsigned int)m.hedge.size()-n;
last = m.hedge.begin();
advance(last,siz);
return last;// deve restituire l'iteratore alla prima faccia aggiunta;
}
/** Function to add n vertices to the mesh.
First wrapper, with no parameters
*/
static HEdgeIterator AddHEdges(MeshType &m, int n)
{
PointerUpdater<HEdgePointer> pu;
return AddHEdges(m, n,pu);
}
/** Function to add n vertices to the mesh.
Second Wrapper, with a vector of vertex pointers to be updated.
*/
static HEdgeIterator AddHEdges(MeshType &m, int n, std::vector<HEdgePointer*> &local_vec)
{
PointerUpdater<HEdgePointer> pu;
HEdgeIterator v_ret = AddHEdges(m, n,pu);
typename std::vector<HEdgePointer *>::iterator ei;
for(ei=local_vec.begin();ei!=local_vec.end();++ei)
pu.Update(**ei);
return v_ret;
}
/** Function to add n faces to the mesh.
First wrapper, with no parameters
*/
static FaceIterator AddFaces(MeshType &m, int n)
{
PointerUpdater<FacePointer> pu;
return AddFaces(m,n,pu);
}
/** Function to add n faces to the mesh.
Second Wrapper, with a vector of face pointer to be updated.
*/
static FaceIterator AddFaces(MeshType &m, int n,std::vector<FacePointer *> &local_vec)
{
PointerUpdater<FacePointer> pu;
FaceIterator f_ret= AddFaces(m,n,pu);
typename std::vector<FacePointer *>::iterator fi;
for(fi=local_vec.begin();fi!=local_vec.end();++fi)
pu.Update(**fi);
return f_ret;
}
/** Function to add n faces to the mesh.
This is the only full featured function that is able to manage correctly all the internal pointers of the mesh (ff and vf relations).
NOTE: THIS FUNCTION ALSO UPDATE FN
*/
static FaceIterator AddFaces(MeshType &m, int n, PointerUpdater<FacePointer> &pu)
{
FaceIterator last, fi;
if(n == 0) return m.face.end();
pu.Clear();
if(m.face.empty()) {
pu.oldBase=0; // if the vector is empty we cannot find the last valid element
} else {
pu.oldBase=&*m.face.begin();
pu.oldEnd=&m.face.back()+1;
last=m.face.end();
}
m.face.resize(m.face.size()+n);
m.fn+=n;
typename std::set<PointerToAttribute>::iterator ai;
for(ai = m.face_attr.begin(); ai != m.face_attr.end(); ++ai)
((PointerToAttribute)(*ai)).Resize(m.face.size());
pu.newBase = &*m.face.begin();
pu.newEnd = &m.face.back()+1;
if(pu.NeedUpdate())
{
int ii = 0;
FaceIterator fi = m.face.begin();
while(ii<m.fn-n) // cycle on all the faces except the new ones
{
if(!(*fi).IsD())
{
if(HasFFAdjacency(m))
for(int i = 0; i < (*fi).VN(); ++i)
if ((*fi).cFFp(i)!=0) pu.Update((*fi).FFp(i));
if(HasPerVertexVFAdjacency(m) && HasPerFaceVFAdjacency(m))
for(int i = 0; i < (*fi).VN(); ++i)
if ((*fi).cVFp(i)!=0) pu.Update((*fi).VFp(i));
++ii;
}
++fi;
}
VertexIterator vi;
for (vi=m.vert.begin(); vi!=m.vert.end(); ++vi)
if(!(*vi).IsD())
{
if(HasPerVertexVFAdjacency(m) && HasPerFaceVFAdjacency(m))
if ((*vi).cVFp()!=0)
pu.Update((FaceType * &)(*vi).VFp());
// Note the above cast is probably not useful if you have correctly defined
// your vertex type with the correct name of the facetype as a template argument;
// pu.Update((FaceType*)(*vi).VFp()); compiles on old gcc and borland
// pu.Update((*vi).VFp()); compiles on .net and newer gcc
}
EdgeIterator ei;
for (ei=m.edge.begin(); ei!=m.edge.end(); ++ei)
if(!(*ei).IsD())
{
if(HasEFAdjacency(m))
if ((*ei).cEFp()!=0)
pu.Update((FaceType * &)(*ei).EFp());
// Note the above cast is probably not useful if you have correctly defined
// your vertex type with the correct name of the facetype as a template argument;
// pu.Update((FaceType*)(*vi).VFp()); compiles on old gcc and borland
// pu.Update((*vi).VFp()); compiles on .net and newer gcc
}
HEdgeIterator hi;
for (hi=m.hedge.begin(); hi!=m.hedge.end(); ++hi)
if(!(*hi).IsD())
{
if(HasHFAdjacency(m))
if ((*hi).cHFp()!=0)
pu.Update((FaceType * &)(*hi).HFp());
// Note the above cast is probably not useful if you have correctly defined
// your vertex type with the correct name of the facetype as a template argument;
// pu.Update((FaceType*)(*vi).VFp()); compiles on old gcc and borland
// pu.Update((*vi).VFp()); compiles on .net and newer gcc
}
}
unsigned int siz=(unsigned int)m.face.size()-n;
last = m.face.begin();
advance(last,siz);
return last;
}
/** Function to delete a face from the mesh.
NOTE: THIS FUNCTION ALSO UPDATE FN
*/
static void DeleteFace(MeshType &m, FaceType &f)
{
assert(!f.IsD());
f.SetD();
--m.fn;
}
/** Function to delete a vertex from the mesh.
NOTE: THIS FUNCTION ALSO UPDATE vn
*/
static void DeleteVertex(MeshType &m, VertexType &v)
{
assert(!v.IsD());
v.SetD();
--m.vn;
}
/** Function to delete an edge from the mesh.
NOTE: THIS FUNCTION ALSO UPDATE en
*/
static void DeleteEdge(MeshType &m, EdgeType &e)
{
assert(!e.IsD());
e.SetD();
--m.en;
}
/** Function to delete a hedge from the mesh.
NOTE: THIS FUNCTION ALSO UPDATE en
*/
static void DeleteHEdge(MeshType &m, HEdgeType &h)
{
assert(!h.IsD());
h.SetD();
--m.hn;
}
/*
Function to rearrange the vertex vector according to a given index permutation
the permutation is vector such that after calling this function
m.vert[ newVertIndex[i] ] = m.vert[i];
e.g. newVertIndex[i] is the new index of the vertex i
*/
static void PermutateVertexVector(MeshType &m, PointerUpdater<VertexPointer> &pu)
{
for(unsigned int i=0;i<m.vert.size();++i)
{
if(pu.remap[i]<size_t(m.vn))
{
assert(!m.vert[i].IsD());
m.vert[ pu.remap [i] ].ImportData(m.vert[i]);
if(HasPerVertexVFAdjacency(m) &&HasPerFaceVFAdjacency(m) )
if (m.vert[i].cVFp()!=0)
{
m.vert[ pu.remap[i] ].VFp() = m.vert[i].cVFp();
m.vert[ pu.remap[i] ].VFi() = m.vert[i].cVFi();
}
}
}
// reorder the optional atttributes in m.vert_attr to reflect the changes
ReorderAttribute(m.vert_attr,pu.remap,m);
// setup the pointer updater
pu.oldBase = &m.vert[0];
pu.oldEnd = &m.vert.back()+1;
// resize
m.vert.resize(m.vn);
// setup the pointer updater
pu.newBase = (m.vert.empty())?0:&m.vert[0];
pu.newEnd = (m.vert.empty())?0:&m.vert.back()+1;
// resize the optional atttributes in m.vert_attr to reflect the changes
ResizeAttribute(m.vert_attr,m.vn,m);
// Loop on the face to update the pointers FV relation (vertex refs)
for(FaceIterator fi=m.face.begin();fi!=m.face.end();++fi)
if(!(*fi).IsD())
for(unsigned int i=0;i<3;++i)
{
size_t oldIndex = (*fi).V(i) - pu.oldBase;
assert(pu.oldBase <= (*fi).V(i) && oldIndex < pu.remap.size());
(*fi).V(i) = pu.newBase+pu.remap[oldIndex];
}
// Loop on the edges to update the pointers EV relation
if(HasEVAdjacency(m))
for(EdgeIterator ei=m.edge.begin();ei!=m.edge.end();++ei)
if(!(*ei).IsD())
for(unsigned int i=0;i<2;++i)
{
pu.Update((*ei).V(i));
}
}
/*
Function to compact all the vertices that have been deleted and put them to the end of the vector.
after this pass the isD test in the scanning of vertex vector, is no more strongly necessary.
It should not be called when TemporaryData is active;
*/
static void CompactVertexVector( MeshType &m, PointerUpdater<VertexPointer> &pu )
{
// If already compacted fast return please!
if(m.vn==(int)m.vert.size()) return;
// newVertIndex [ <old_vert_position> ] gives you the new position of the vertex in the vector;
pu.remap.resize( m.vert.size(),std::numeric_limits<size_t>::max() );
size_t pos=0;
size_t i=0;
for(i=0;i<m.vert.size();++i)
{
if(!m.vert[i].IsD())
{
pu.remap[i]=pos;
++pos;
}
}
assert((int)pos==m.vn);
PermutateVertexVector(m, pu);
}
/*
Function to compact all the verices that have been deleted and put them to the end of the vector.
Wrapper if not PointerUpdater is not wanted
*/
static void CompactVertexVector( MeshType &m ) {
PointerUpdater<VertexPointer> pu;
CompactVertexVector(m,pu);
}
/*
Function to compact all the vertices that have been deleted and put them to the end of the vector.
after this pass the isD test in the scanning of vertex vector, is no more strongly necessary.
It should not be called when TemporaryData is active;
*/
static void CompactEdgeVector( MeshType &m, PointerUpdater<EdgePointer> &pu )
{
// If already compacted fast return please!
if(m.en==(int)m.edge.size()) return;
// remap [ <old_edge_position> ] gives you the new position of the edge in the vector;
pu.remap.resize( m.edge.size(),std::numeric_limits<size_t>::max() );
size_t pos=0;
size_t i=0;
for(i=0;i<m.edge.size();++i)
{
if(!m.edge[i].IsD())
{
pu.remap[i]=pos;
++pos;
}
}
assert((int)pos==m.en);
// the actual copying of the data.
for(unsigned int i=0;i<m.edge.size();++i)
{
if(pu.remap[i]<size_t(m.en)) // uninitialized entries in the remap vector has max_int value;
{
assert(!m.edge[i].IsD());
m.edge[ pu.remap [i] ].ImportData(m.edge[i]);
// copy the vertex reference (they are not data!)
m.edge[ pu.remap[i] ].V(0) = m.edge[i].cV(0);
m.edge[ pu.remap[i] ].V(1) = m.edge[i].cV(1);
// Now just copy the adjacency pointers (without changing them, to be done later)
if(HasPerVertexVEAdjacency(m) && HasPerEdgeVEAdjacency(m) )
if (m.edge[i].cVEp(0)!=0)
{
m.edge[ pu.remap[i] ].VEp(0) = m.edge[i].cVEp(0);
m.edge[ pu.remap[i] ].VEi(0) = m.edge[i].cVEi(0);
m.edge[ pu.remap[i] ].VEp(1) = m.edge[i].cVEp(1);
m.edge[ pu.remap[i] ].VEi(1) = m.edge[i].cVEi(1);
}
if(HasEEAdjacency(m))
if (m.edge[i].cEEp(0)!=0)
{
m.edge[ pu.remap[i] ].EEp(0) = m.edge[i].cEEp(0);
m.edge[ pu.remap[i] ].EEi(0) = m.edge[i].cEEi(0);
m.edge[ pu.remap[i] ].EEp(1) = m.edge[i].cEEp(1);
m.edge[ pu.remap[i] ].EEi(1) = m.edge[i].cEEi(1);
}
}
}
// reorder the optional attributes in m.vert_attr to reflect the changes
ReorderAttribute(m.edge_attr, pu.remap,m);
// setup the pointer updater
pu.oldBase = &m.edge[0];
pu.oldEnd = &m.edge.back()+1;
// THE resize
m.edge.resize(m.en);
// setup the pointer updater
pu.newBase = (m.edge.empty())?0:&m.edge[0];
pu.newEnd = (m.edge.empty())?0:&m.edge.back()+1;
// resize the optional atttributes in m.vert_attr to reflect the changes
ResizeAttribute(m.edge_attr,m.en,m);
// Loop on the vertices to update the pointers of VE relation
if(HasPerVertexVEAdjacency(m) &&HasPerEdgeVEAdjacency(m))
for (VertexIterator vi=m.vert.begin(); vi!=m.vert.end(); ++vi)
if(!(*vi).IsD()) pu.Update((*vi).VEp());
// Loop on the edges to update the pointers EE VE relation
for(EdgeIterator ei=m.edge.begin();ei!=m.edge.end();++ei)
for(unsigned int i=0;i<2;++i)
{
if(HasPerVertexVEAdjacency(m) &&HasPerEdgeVEAdjacency(m))
pu.Update((*ei).VEp(i));
if(HasEEAdjacency(m))
pu.Update((*ei).EEp(i));
}
}
/*
Function to compact all the verices that have been deleted and put them to the end of the vector.
Wrapper if not PointerUpdater is not wanted
*/
static void CompactEdgeVector( MeshType &m ) {
PointerUpdater<EdgePointer> pu;
CompactEdgeVector(m,pu);
}
/*
Function to compact all the vertices that have been deleted and put them to the end of the vector.
after this pass the isD test in the scanning of vertex vector, is no more strongly necessary.
It should not be called when TemporaryData is active;
*/
static void CompactFaceVector( MeshType &m, PointerUpdater<FacePointer> &pu )
{
// If already compacted fast return please!
if(m.fn==(int)m.face.size()) return;
// newFaceIndex [ <old_face_position> ] gives you the new position of the face in the vector;
pu.remap.resize( m.face.size(),std::numeric_limits<size_t>::max() );
size_t pos=0;
size_t i=0;
for(i=0;i<m.face.size();++i)
{
if(!m.face[i].IsD())
{
if(pos!=i)
{
m.face[pos].ImportData(m.face[i]);
m.face[pos].V(0) = m.face[i].V(0);
m.face[pos].V(1) = m.face[i].V(1);
m.face[pos].V(2) = m.face[i].V(2);
if(HasPerVertexVFAdjacency(m) && HasPerFaceVFAdjacency(m))
for(int j=0;j<3;++j)
if (m.face[i].cVFp(j)!=0) {
m.face[pos].VFp(j) = m.face[i].cVFp(j);
m.face[pos].VFi(j) = m.face[i].cVFi(j);
}
if(HasFFAdjacency(m))
for(int j=0;j<3;++j)
if (m.face[i].cFFp(j)!=0) {
m.face[pos].FFp(j) = m.face[i].cFFp(j);
m.face[pos].FFi(j) = m.face[i].cFFi(j);
}
}
pu.remap[i]=pos;
++pos;
}
}
assert((int)pos==m.fn);
// reorder the optional atttributes in m.face_attr to reflect the changes
ReorderAttribute(m.face_attr,pu.remap,m);
// Loop on the vertices to correct VF relation
VertexIterator vi;
FacePointer fbase=&m.face[0];
for (vi=m.vert.begin(); vi!=m.vert.end(); ++vi)
if(!(*vi).IsD())
{
if(HasPerVertexVFAdjacency(m) &&HasPerFaceVFAdjacency(m) )
if ((*vi).cVFp()!=0)
{
size_t oldIndex = (*vi).cVFp() - fbase;
assert(fbase <= (*vi).cVFp() && oldIndex < pu.remap.size());
(*vi).VFp() = fbase+pu.remap[oldIndex];
}
}
// Loop on the faces to correct VF and FF relations
pu.oldBase = &m.face[0];
pu.oldEnd = &m.face.back()+1;
m.face.resize(m.fn);
pu.newBase = (m.face.empty())?0:&m.face[0];
pu.newEnd = (m.face.empty())?0:&m.face.back()+1;
// resize the optional atttributes in m.face_attr to reflect the changes
ResizeAttribute(m.face_attr,m.fn,m);
FaceIterator fi;
for(fi=m.face.begin();fi!=m.face.end();++fi)
if(!(*fi).IsD())
{
if(HasPerVertexVFAdjacency(m) &&HasPerFaceVFAdjacency(m) )
for(i=0;i<3;++i)
if ((*fi).cVFp(i)!=0)
{
size_t oldIndex = (*fi).VFp(i) - fbase;
assert(fbase <= (*fi).VFp(i) && oldIndex < pu.remap.size());
(*fi).VFp(i) = fbase+pu.remap[oldIndex];
}
if(HasFFAdjacency(m))
for(i=0;i<3;++i)
if ((*fi).cFFp(i)!=0)
{
size_t oldIndex = (*fi).FFp(i) - fbase;
assert(fbase <= (*fi).FFp(i) && oldIndex < pu.remap.size());
(*fi).FFp(i) = fbase+pu.remap[oldIndex];
}
}
}
/*
Function to compact all the face that have been deleted and put them to the end of the vector.
Wrapper if not PointerUpdater is wanted
*/
static void CompactFaceVector( MeshType &m ) {
PointerUpdater<FacePointer> pu;
CompactFaceVector(m,pu);
}
public:
/// Per Vertex Attributes
template <class ATTR_TYPE>
static
bool IsValidHandle( MeshType & m, const typename MeshType::template PerVertexAttributeHandle<ATTR_TYPE> & a){
if(a._handle == NULL) return false;
for(AttrIterator i = m.vert_attr.begin(); i!=m.vert_attr.end();++i)
if ( (*i).n_attr == a.n_attr ) return true;
return false;
}
template <class ATTR_TYPE>
static
typename MeshType::template PerVertexAttributeHandle<ATTR_TYPE>
AddPerVertexAttribute( MeshType & m, std::string name){
PAIte i;
PointerToAttribute h;
h._name = name;
if(!name.empty()){
i = m.vert_attr.find(h);
assert(i ==m.vert_attr.end() );// an attribute with this name exists
}
h._sizeof = sizeof(ATTR_TYPE);
h._padding = 0;
h._handle = new SimpleTempData<VertContainer,ATTR_TYPE>(m.vert);
m.attrn++;
h.n_attr = m.attrn;
std::pair < AttrIterator , bool> res = m.vert_attr.insert(h);
return typename MeshType::template PerVertexAttributeHandle<ATTR_TYPE>(res.first->_handle,res.first->n_attr );
}
template <class ATTR_TYPE>
static
typename MeshType::template PerVertexAttributeHandle<ATTR_TYPE>
AddPerVertexAttribute( MeshType & m){
return AddPerVertexAttribute<ATTR_TYPE>(m,std::string(""));
}
template <class ATTR_TYPE>
static
typename MeshType::template PerVertexAttributeHandle<ATTR_TYPE>
GetPerVertexAttribute( MeshType & m, const std::string & name){
assert(!name.empty());
PointerToAttribute h1; h1._name = name;
typename std::set<PointerToAttribute > :: iterator i;
i =m.vert_attr.find(h1);
if(i!=m.vert_attr.end())
if((*i)._sizeof == sizeof(ATTR_TYPE) ){
if( (*i)._padding != 0 ){
PointerToAttribute attr = (*i); // copy the PointerToAttribute
m.vert_attr.erase(i); // remove it from the set
FixPaddedPerVertexAttribute<ATTR_TYPE>(m,attr);
std::pair<AttrIterator,bool> new_i = m.vert_attr.insert(attr); // insert the modified PointerToAttribute
assert(new_i.second);
i = new_i.first;
}
return typename MeshType::template PerVertexAttributeHandle<ATTR_TYPE>((*i)._handle,(*i).n_attr);
}
return typename MeshType:: template PerVertexAttributeHandle<ATTR_TYPE>(NULL,0);
}
template <class ATTR_TYPE>
static void GetAllPerVertexAttribute(MeshType & m, std::vector<std::string> &all){
all.clear();
typename std::set<PointerToAttribute > ::const_iterator i;
for(i = m.vert_attr.begin(); i != m.vert_attr.end(); ++i )
if(!(*i)._name.empty())
{
typename MeshType:: template PerVertexAttributeHandle<ATTR_TYPE> hh;
hh = Allocator<MeshType>:: template GetPerVertexAttribute <ATTR_TYPE>(m,(*i)._name);
if(IsValidHandle<ATTR_TYPE>(m,hh))
all.push_back((*i)._name);
}
}
template <class ATTR_TYPE>
static
void
DeletePerVertexAttribute( MeshType & m,typename MeshType::template PerVertexAttributeHandle<ATTR_TYPE> & h){
typename std::set<PointerToAttribute > ::iterator i;
for( i = m.vert_attr.begin(); i != m.vert_attr.end(); ++i)
if( (*i)._handle == h._handle ){
delete ((SimpleTempData<VertContainer,ATTR_TYPE>*)(*i)._handle);
m.vert_attr.erase(i);
return;}
assert(0);
}
// Generic DeleteAttribute.
// It must not crash if you try to delete a non existing attribute,
// because you do not have a way of asking for a handle of an attribute for which you do not know the type.
static
bool DeletePerVertexAttribute( MeshType & m, std::string name){
AttrIterator i;
PointerToAttribute h1; h1._name = name;
i = m.vert_attr.find(h1);
if(i==m.vert_attr.end()) return false;
delete ((SimpleTempDataBase*)(*i)._handle);
m.vert_attr.erase(i);
return true;
}
/// Per Edge Attributes
template <class ATTR_TYPE>
static
bool IsValidHandle( MeshType & m, const typename MeshType::template PerEdgeAttributeHandle<ATTR_TYPE> & a){
if(a._handle == NULL) return false;
for(AttrIterator i = m.edge_attr.begin(); i!=m.edge_attr.end();++i)
if ( (*i).n_attr == a.n_attr ) return true;
return false;
}
template <class ATTR_TYPE>
static
typename MeshType::template PerEdgeAttributeHandle<ATTR_TYPE>
AddPerEdgeAttribute( MeshType & m, std::string name){
PAIte i;
PointerToAttribute h;
h._name = name;
if(!name.empty()){
i = m.edge_attr.find(h);
assert(i ==m.edge_attr.end() );// an attribute with this name exists
}
h._sizeof = sizeof(ATTR_TYPE);
h._padding = 0;
// h._typename = typeid(ATTR_TYPE).name();
h._handle = new SimpleTempData<EdgeContainer,ATTR_TYPE>(m.edge);
m.attrn++;
h.n_attr = m.attrn;
std::pair < AttrIterator , bool> res = m.edge_attr.insert(h);
return typename MeshType::template PerEdgeAttributeHandle<ATTR_TYPE>(res.first->_handle,res.first->n_attr);
}
template <class ATTR_TYPE>
static
typename MeshType::template PerEdgeAttributeHandle<ATTR_TYPE>
AddPerEdgeAttribute( MeshType & m){
return AddPerEdgeAttribute<ATTR_TYPE>(m,std::string(""));
}
template <class ATTR_TYPE>
static
typename MeshType::template PerEdgeAttributeHandle<ATTR_TYPE>
GetPerEdgeAttribute( MeshType & m, const std::string & name){
assert(!name.empty());
PointerToAttribute h1; h1._name = name;
typename std::set<PointerToAttribute > ::const_iterator i;
i =m.edge_attr.find(h1);
if(i!=m.edge_attr.end())
if((*i)._sizeof == sizeof(ATTR_TYPE) ){
if( (*i)._padding != 0 ){
PointerToAttribute attr = (*i); // copy the PointerToAttribute
m.edge_attr.erase(i); // remove it from the set
FixPaddedPerEdgeAttribute<ATTR_TYPE>(m,attr);
std::pair<AttrIterator,bool> new_i = m.edge_attr.insert(attr); // insert the modified PointerToAttribute
assert(new_i.second);
i = new_i.first;
}
return typename MeshType::template PerEdgeAttributeHandle<ATTR_TYPE>((*i)._handle,(*i).n_attr);
}
// if((*i)._typename == typeid(ATTR_TYPE).name() )
// return typename MeshType:: template PerVertexAttributeHandle<ATTR_TYPE>(NULL,0);
return typename MeshType:: template PerEdgeAttributeHandle<ATTR_TYPE>(NULL,0);
}
template <class ATTR_TYPE>
static void GetAllPerEdgeAttribute(const MeshType & m, std::vector<std::string> &all){
typename std::set<PointerToAttribute > :: iterator i;
for(i = m.edge_attr.begin(); i != m.edge_attr.end(); ++i )
if((*i)._typename == typeid(ATTR_TYPE).name())
all.push_back((*i)._name);
}
template <class ATTR_TYPE>
static
void
DeletePerEdgeAttribute( MeshType & m,typename MeshType::template PerEdgeAttributeHandle<ATTR_TYPE> & h){
typename std::set<PointerToAttribute > ::iterator i;
for( i = m.edge_attr.begin(); i != m.edge_attr.end(); ++i)
if( (*i)._handle == h._handle ){
delete ((SimpleTempData<FaceContainer,ATTR_TYPE>*)(*i)._handle);
m.edge_attr.erase(i);
return;}
assert(0);
}
// Generic DeleteAttribute.
// It must not crash if you try to delete a non existing attribute,
// because you do not have a way of asking for a handle of an attribute for which you do not know the type.
static
bool DeletePerEdgeAttribute( MeshType & m, std::string name){
AttrIterator i;
PointerToAttribute h1; h1._name = name;
i = m.edge_attr.find(h1);
if(i==m.edge_attr.end()) return false;
delete ((SimpleTempDataBase*)(*i)._handle);
m.edge_attr.erase(i);
return true;
}
/// Per Face Attributes
template <class ATTR_TYPE>
static
bool IsValidHandle( MeshType & m, const typename MeshType::template PerFaceAttributeHandle<ATTR_TYPE> & a){
if(a._handle == NULL) return false;
for(AttrIterator i = m.face_attr.begin(); i!=m.face_attr.end();++i)
if ( (*i).n_attr == a.n_attr ) return true;
return false;
}
template <class ATTR_TYPE>
static
typename MeshType::template PerFaceAttributeHandle<ATTR_TYPE>
AddPerFaceAttribute( MeshType & m, std::string name){
PAIte i;
PointerToAttribute h;
h._name = name;
if(!name.empty()){
i = m.face_attr.find(h);
assert(i ==m.face_attr.end() );// an attribute with this name exists
}
h._sizeof = sizeof(ATTR_TYPE);
h._padding = 0;
h._handle = new SimpleTempData<FaceContainer,ATTR_TYPE>(m.face);
m.attrn++;
h.n_attr = m.attrn;
std::pair < AttrIterator , bool> res = m.face_attr.insert(h);
return typename MeshType::template PerFaceAttributeHandle<ATTR_TYPE>(res.first->_handle,res.first->n_attr);
}
template <class ATTR_TYPE>
static
typename MeshType::template PerFaceAttributeHandle<ATTR_TYPE>
AddPerFaceAttribute( MeshType & m){
return AddPerFaceAttribute<ATTR_TYPE>(m,std::string(""));
}
template <class ATTR_TYPE>
static
typename MeshType::template PerFaceAttributeHandle<ATTR_TYPE>
GetPerFaceAttribute( MeshType & m, const std::string & name){
assert(!name.empty());
PointerToAttribute h1; h1._name = name;
typename std::set<PointerToAttribute > ::iterator i;
i =m.face_attr.find(h1);
if(i!=m.face_attr.end())
if((*i)._sizeof == sizeof(ATTR_TYPE) ){
if( (*i)._padding != 0 ){
PointerToAttribute attr = (*i); // copy the PointerToAttribute
m.face_attr.erase(i); // remove it from the set
FixPaddedPerFaceAttribute<ATTR_TYPE>(m,attr);
std::pair<AttrIterator,bool> new_i = m.face_attr.insert(attr); // insert the modified PointerToAttribute
assert(new_i.second);
i = new_i.first;
}
return typename MeshType::template PerFaceAttributeHandle<ATTR_TYPE>((*i)._handle,(*i).n_attr);
}
return typename MeshType:: template PerFaceAttributeHandle<ATTR_TYPE>(NULL,0);
}
template <class ATTR_TYPE>
static void GetAllPerFaceAttribute(MeshType & m, std::vector<std::string> &all){
all.clear();
typename std::set<PointerToAttribute > :: const_iterator i;
for(i = m.face_attr.begin(); i != m.face_attr.end(); ++i )
if(!(*i)._name.empty())
{
typename MeshType:: template PerFaceAttributeHandle<ATTR_TYPE> hh;
hh = Allocator<MeshType>:: template GetPerFaceAttribute <ATTR_TYPE>(m,(*i)._name);
if(IsValidHandle<ATTR_TYPE>(m,hh))
all.push_back((*i)._name);
}
}
template <class ATTR_TYPE>
static
void
DeletePerFaceAttribute( MeshType & m,typename MeshType::template PerFaceAttributeHandle<ATTR_TYPE> & h){
typename std::set<PointerToAttribute > ::iterator i;
for( i = m.face_attr.begin(); i != m.face_attr.end(); ++i)
if( (*i)._handle == h._handle ){
delete ((SimpleTempData<FaceContainer,ATTR_TYPE>*)(*i)._handle);
m.face_attr.erase(i);
return;}
assert(0);
}
// Generic DeleteAttribute.
// It must not crash if you try to delete a non existing attribute,
// because you do not have a way of asking for a handle of an attribute for which you do not know the type.
static
bool DeletePerFaceAttribute( MeshType & m, std::string name){
AttrIterator i;
PointerToAttribute h1; h1._name = name;
i = m.face_attr.find(h1);
if(i==m.face_attr.end()) return false;
delete ((SimpleTempDataBase*)(*i)._handle);
m.face_attr.erase(i);
return true;
}
/// Per Mesh Attributes
template <class ATTR_TYPE>
static
bool IsValidHandle( MeshType & m, const typename MeshType::template PerMeshAttributeHandle<ATTR_TYPE> & a){
if(a._handle == NULL) return false;
for(AttrIterator i = m.mesh_attr.begin(); i!=m.mesh_attr.end();++i)
if ( (*i).n_attr == a.n_attr ) return true;
return false;
}
template <class ATTR_TYPE>
static
typename MeshType::template PerMeshAttributeHandle<ATTR_TYPE>
AddPerMeshAttribute( MeshType & m, std::string name){
PAIte i;
PointerToAttribute h;
h._name = name;
if(!name.empty()){
i = m.mesh_attr.find(h);
assert(i ==m.mesh_attr.end() );// an attribute with this name exists
}
h._sizeof = sizeof(ATTR_TYPE);
h._padding = 0;
h._handle = new Attribute<ATTR_TYPE>();
m.attrn++;
h.n_attr = m.attrn;
std::pair < AttrIterator , bool> res = m.mesh_attr.insert(h);
return typename MeshType::template PerMeshAttributeHandle<ATTR_TYPE>(res.first->_handle,res.first->n_attr);
}
template <class ATTR_TYPE>
static
typename MeshType::template PerMeshAttributeHandle<ATTR_TYPE>
GetPerMeshAttribute( MeshType & m, const std::string & name){
assert(!name.empty());
PointerToAttribute h1; h1._name = name;
typename std::set<PointerToAttribute > ::iterator i;
i =m.mesh_attr.find(h1);
if(i!=m.mesh_attr.end())
if((*i)._sizeof == sizeof(ATTR_TYPE) ){
if( (*i)._padding != 0 ){
PointerToAttribute attr = (*i); // copy the PointerToAttribute
m.mesh_attr.erase(i); // remove it from the set
FixPaddedPerMeshAttribute<ATTR_TYPE>(m,attr);
std::pair<AttrIterator,bool> new_i = m.mesh_attr.insert(attr); // insert the modified PointerToAttribute
assert(new_i.second);
i = new_i.first;
}
return typename MeshType::template PerMeshAttributeHandle<ATTR_TYPE>((*i)._handle,(*i).n_attr);
}
return typename MeshType:: template PerMeshAttributeHandle<ATTR_TYPE>(NULL,0);
}
template <class ATTR_TYPE>
static void GetAllPerMeshAttribute(const MeshType & m, std::vector<std::string> &all){
typename std::set<PointerToAttribute > :: iterator i;
for(i = m.mesh_attr.begin(); i != m.mesh_attr.end(); ++i )
if((*i)._sizeof == sizeof(ATTR_TYPE))
all.push_back((*i)._name);
}
template <class ATTR_TYPE>
static
void
DeletePerMeshAttribute( MeshType & m,typename MeshType::template PerMeshAttributeHandle<ATTR_TYPE> & h){
typename std::set<PointerToAttribute > ::iterator i;
for( i = m.mesh_attr.begin(); i != m.mesh_attr.end(); ++i)
if( (*i)._handle == h._handle ){
delete (( Attribute<ATTR_TYPE> *)(*i)._handle);
m.mesh_attr.erase(i);
return;}
assert(0);
}
static
void DeletePerMeshAttribute( MeshType & m, std::string name){
AttrIterator i;
PointerToAttribute h1; h1._name = name;
i = m.mesh_attr.find(h1);
assert(i!=m.mesh_attr.end());
delete ((SimpleTempDataBase *)(*i)._handle);
m.mesh_attr.erase(i);
}
template <class ATTR_TYPE>
static
void FixPaddedPerVertexAttribute (MeshType & m, PointerToAttribute & pa){
// create the container of the right type
SimpleTempData<VertContainer,ATTR_TYPE>* _handle = new SimpleTempData<VertContainer,ATTR_TYPE>(m.vert);
// copy the padded container in the new one
_handle->Resize(m.vert.size());
for(unsigned int i = 0; i < m.vert.size(); ++i){
ATTR_TYPE * dest = &(*_handle)[i];
char * ptr = (char*)( ((SimpleTempDataBase *)pa._handle)->DataBegin());
memcpy((void*)dest ,
(void*) &(ptr[i * pa._sizeof ]) ,sizeof(ATTR_TYPE));
}
// remove the padded container
delete ((SimpleTempDataBase*) pa._handle);
// update the pointer to data
pa._sizeof = sizeof(ATTR_TYPE);
// update the pointer to data
pa._handle = _handle;
// zero the padding
pa._padding = 0;
}
template <class ATTR_TYPE>
static
void FixPaddedPerEdgeAttribute (MeshType & m, PointerToAttribute & pa){
// create the container of the right type
SimpleTempData<EdgeContainer,ATTR_TYPE>* _handle = new SimpleTempData<EdgeContainer,ATTR_TYPE>(m.edge);
// copy the padded container in the new one
_handle->Resize(m.edge.size());
for(unsigned int i = 0; i < m.edge.size(); ++i){
ATTR_TYPE * dest = &(*_handle)[i];
char * ptr = (char*)( ((SimpleTempDataBase *)pa._handle)->DataBegin());
memcpy((void*)dest ,
(void*) &(ptr[i * pa._sizeof ]) ,sizeof(ATTR_TYPE));
}
// remove the padded container
delete ((SimpleTempDataBase*) pa._handle);
// update the pointer to data
pa._sizeof = sizeof(ATTR_TYPE);
// update the pointer to data
pa._handle = _handle;
// zero the padding
pa._padding = 0;
}
template <class ATTR_TYPE>
static
void FixPaddedPerFaceAttribute ( MeshType & m,PointerToAttribute & pa){
// create the container of the right type
SimpleTempData<FaceContainer,ATTR_TYPE>* _handle = new SimpleTempData<FaceContainer,ATTR_TYPE>(m.face);
// copy the padded container in the new one
_handle->Resize(m.face.size());
for(unsigned int i = 0; i < m.face.size(); ++i){
ATTR_TYPE * dest = &(*_handle)[i];
char * ptr = (char*)( ((SimpleTempDataBase *)pa._handle)->DataBegin());
memcpy((void*)dest ,
(void*) &(ptr[i * pa._sizeof ]) ,sizeof(ATTR_TYPE));
}
// remove the padded container
delete ((SimpleTempDataBase*) pa._handle);
// update the pointer to data
pa._sizeof = sizeof(ATTR_TYPE);
// update the pointer to data
pa._handle = _handle;
// zero the padding
pa._padding = 0;
}
template <class ATTR_TYPE>
static
void FixPaddedPerMeshAttribute ( MeshType & /* m */,PointerToAttribute & pa){
// create the container of the right type
Attribute<ATTR_TYPE> * _handle = new Attribute<ATTR_TYPE>();
// copy the padded container in the new one
char * ptr = (char*)( ((Attribute<ATTR_TYPE> *)pa._handle)->DataBegin());
memcpy((void*)_handle->attribute ,(void*) &(ptr[0]) ,sizeof(ATTR_TYPE));
// remove the padded container
delete ( (Attribute<ATTR_TYPE> *) pa._handle);
// update the pointer to data
pa._sizeof = sizeof(ATTR_TYPE);
// update the pointer to data
pa._handle = _handle;
// zero the padding
pa._padding = 0;
}
}; // end class
/*@}*/
} // End Namespace TriMesh
} // End Namespace vcg
#endif
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