246 lines
7.6 KiB
C++
246 lines
7.6 KiB
C++
/****************************************************************************
|
|
* 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. *
|
|
* *
|
|
****************************************************************************/
|
|
/****************************************************************************
|
|
History
|
|
|
|
$Log: not supported by cvs2svn $
|
|
Revision 1.3 2004/05/31 16:01:56 pietroni
|
|
added function addtetra
|
|
|
|
Revision 1.2 2004/05/14 15:14:34 turini
|
|
Added $Log: not supported by cvs2svn $
|
|
Added Revision 1.3 2004/05/31 16:01:56 pietroni
|
|
Added added function addtetra
|
|
Added for CVS History Log
|
|
|
|
Revision 1.1 2004/19/04 13:05 pietroni
|
|
Initial commit
|
|
|
|
|
|
****************************************************************************/
|
|
#ifndef __VCG_TETRA_ALLOCATE
|
|
#define __VCG_TETRA_ALLOCATE
|
|
#include <vector>
|
|
using namespace std;
|
|
namespace vcg {
|
|
namespace tetra {
|
|
/** \addtogroup tetramesh */
|
|
/*@{*/
|
|
|
|
/** Class Allocate.
|
|
This is class for Allocate new vertices or tetrahedron on the mesh.
|
|
@param TM_TYPE (Template Parameter) Specifies the type of the tetrahedral mesh.
|
|
*/
|
|
|
|
template < class TM_TYPE >
|
|
class Allocator
|
|
{
|
|
|
|
public:
|
|
|
|
/// The tetramesh type
|
|
typedef TM_TYPE TetraMeshType;
|
|
|
|
|
|
/// The vertex type
|
|
typedef typename TM_TYPE::VertexType VertexType;
|
|
|
|
/// The tetrahedron type
|
|
typedef typename TM_TYPE::TetraType TetraType;
|
|
|
|
/// The type of vertex iterator
|
|
typedef typename TM_TYPE::VertexIterator VertexIterator;
|
|
|
|
/// The type of tetra iterator
|
|
typedef typename TM_TYPE::TetraIterator TetraIterator;
|
|
|
|
/// The type of constant vertex iterator
|
|
typedef typename TM_TYPE::const_VertexIterator const_VertexIterator;
|
|
|
|
/// The type of constant face iterator
|
|
typedef typename TM_TYPE::const_TetraIterator const_TetraIterator;
|
|
|
|
|
|
public:
|
|
|
|
/** 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(TetraMeshType &m,int n, vector<VertexType **> &local_var)
|
|
{
|
|
VertexIterator oldbegin, newbegin;
|
|
oldbegin = m.vert.begin();
|
|
VertexIterator last=m.vert.end();
|
|
if(m.vert.empty()) last=(VertexIterator)0; // if the vector is empty we cannot find the last valid element
|
|
else --last;
|
|
unsigned int siz=0;
|
|
#ifdef __STL_CONFIG_H
|
|
if(last!=(VertexIterator)0) distance(m.vert.begin(),last,siz);
|
|
#else
|
|
if(last!=(VertexIterator)0) siz=distance(m.vert.begin(),last);
|
|
#endif
|
|
for(unsigned int i=0; i<n; ++i)
|
|
{
|
|
m.vert.push_back(VertexType());
|
|
m.vert.back().ClearFlags();
|
|
}
|
|
m.vn+=n;
|
|
newbegin = m.vert.begin();
|
|
if(newbegin != oldbegin)
|
|
{
|
|
TetraIterator f;
|
|
for (f=m.tetra.begin(); f!=m.tetra.end(); ++f)
|
|
if(!(*f).IsD())
|
|
for(unsigned int k=0; k<4; ++k)
|
|
(*f).V(k)= (*f).V(k)-&*oldbegin+&*newbegin;
|
|
for(unsigned int j=0; j<local_var.size(); ++j)
|
|
if((*local_var[j]) !=0 ) *local_var[j] = *local_var[j]-&*oldbegin+&*newbegin;
|
|
|
|
// deve restituire l'iteratore alla prima faccia aggiunta;
|
|
// e poiche' lo spazio e' cambiato si ricalcola last da zero
|
|
if(last!=(VertexIterator)0)
|
|
{
|
|
last = m.vert.begin();
|
|
advance(last,siz+1);
|
|
}
|
|
else last=m.vert.begin();
|
|
}
|
|
else
|
|
{
|
|
// se non e'cambiato lo spazio (vector abbastanza grande o lista)
|
|
if(last==(VertexIterator)0) last = m.vert.begin(); // se il vettore era vuoto si restituisce begin
|
|
else advance(last,1); // altrimenti il primo dopo quello che era in precedenza l'ultimo valido.
|
|
}
|
|
return last;
|
|
}
|
|
|
|
/** Function to add n vertices to the mesh.
|
|
@param n Il numero di vertici che si vuole aggiungere alla mesh.
|
|
*/
|
|
static VertexIterator AddVertices(TetraMeshType &m,int n)
|
|
{
|
|
vector<VertexType **> empty_var;
|
|
return AddVertices(m,n,empty_var);
|
|
}
|
|
|
|
struct InsertedVT{
|
|
InsertedVT(VertexType *_v,
|
|
TetraType *_t,
|
|
int _z):v(_v),t(_t),z(_z){}
|
|
|
|
VertexType *v;
|
|
TetraType *t;
|
|
int z;
|
|
|
|
const bool operator <(const InsertedVT & o){
|
|
return (v<o.v);
|
|
}
|
|
const bool operator ==(const InsertedVT & o){
|
|
return (v==o.v);
|
|
}
|
|
const bool operator !=(const InsertedVT & o){
|
|
return (v!=o.v);
|
|
}
|
|
};
|
|
|
|
|
|
/** Function to add n tetrafedron to the mesh.
|
|
@param n number of vertices we want to add.
|
|
*/
|
|
static TetraIterator AddTetra(TetraMeshType &m,int n)
|
|
{
|
|
TetraIterator last=m.tetra.end();
|
|
for (int i=0;i<n;i++)
|
|
m.tetra.push_back(TetraType());
|
|
return (last);
|
|
}
|
|
|
|
/** Crate a copy of the mesh with tetrahedron that are into the templated container
|
|
@param ST_CONT (Template Parameter) Specifies the type of the container of tetrahedron.
|
|
@param subSet Container of tetrahedron.
|
|
@param m destination mesh.
|
|
*/
|
|
template <class STL_CONT >
|
|
static void SubSetT(STL_CONT & subSet, TetraMeshType & m)
|
|
{
|
|
vector< InsertedVT > newVertices;
|
|
typename STL_CONT :: iterator pfi;
|
|
newVertices.clear();
|
|
|
|
for(pfi = subSet.begin(); pfi != subSet.end(); ++pfi)
|
|
m.tetra.push_back((*pfi));
|
|
|
|
TetraIterator fi;
|
|
for(fi = m.tetra.begin(); fi != m.tetra.end(); ++fi)
|
|
{
|
|
newVertices.push_back(InsertedVT( (*fi).V(0),&(*fi),0));
|
|
newVertices.push_back(InsertedVT( (*fi).V(1),&(*fi),1));
|
|
newVertices.push_back(InsertedVT( (*fi).V(2),&(*fi),2));
|
|
newVertices.push_back(InsertedVT( (*fi).V(3),&(*fi),3));
|
|
}
|
|
|
|
sort(newVertices.begin(),newVertices.end());
|
|
|
|
typename std::vector< InsertedVT >::iterator curr,next;
|
|
int pos = 0;
|
|
curr = next = newVertices.begin();
|
|
while( next != newVertices.end())
|
|
{
|
|
if((*curr)!=(*next))
|
|
pos++;
|
|
(*next).t->V( (*next).z) = (VertexType *)pos;
|
|
curr = next;
|
|
next++;
|
|
}
|
|
|
|
typename std::vector<InsertedVT >::iterator newE = unique(newVertices.begin(),newVertices.end());
|
|
|
|
for(curr = newVertices.begin();curr!= newE;++curr)
|
|
m.vert.push_back(*((*curr).v));
|
|
|
|
for(fi = m.tetra.begin(); fi != m.tetra.end(); ++fi)
|
|
{
|
|
(*fi).V(0) = &(m.vert[(int)(*fi).V(0)]);
|
|
(*fi).V(1) = &(m.vert[(int)(*fi).V(1)]);
|
|
(*fi).V(2) = &(m.vert[(int)(*fi).V(2)]);
|
|
(*fi).V(3) = &(m.vert[(int)(*fi).V(3)]);
|
|
}
|
|
m.vn = m.vert.size();
|
|
m.tn = m.tetra.size();
|
|
}
|
|
|
|
}; // end class
|
|
|
|
|
|
/*@}*/
|
|
} // End namespace
|
|
} // End namespace
|
|
|
|
|
|
#endif
|