/usr/include/sofa/component/topology/ManifoldTriangleSetTopologyModifier.h is in libsofa1-dev 1.0~beta4-10ubuntu2.
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* SOFA, Simulation Open-Framework Architecture, version 1.0 beta 4 *
* (c) 2006-2009 MGH, INRIA, USTL, UJF, CNRS *
* *
* This library is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published by *
* the Free Software Foundation; either version 2.1 of the License, or (at *
* your option) any later version. *
* *
* This library 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 Lesser General Public License *
* for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with this library; if not, write to the Free Software Foundation, *
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
*******************************************************************************
* SOFA :: Modules *
* *
* Authors: The SOFA Team and external contributors (see Authors.txt) *
* *
* Contact information: contact@sofa-framework.org *
******************************************************************************/
#ifndef SOFA_COMPONENT_TOPOLOGY_MANIFOLDTRIANGLESETTOPOLOGYMODIFIER_H
#define SOFA_COMPONENT_TOPOLOGY_MANIFOLDTRIANGLESETTOPOLOGYMODIFIER_H
#include <sofa/component/topology/TriangleSetTopologyModifier.h>
namespace sofa
{
namespace component
{
namespace topology
{
class ManifoldTriangleSetTopologyContainer;
using core::componentmodel::topology::BaseMeshTopology;
typedef BaseMeshTopology::TriangleID TriangleID;
typedef BaseMeshTopology::Triangle Triangle;
typedef BaseMeshTopology::SeqTriangles SeqTriangles;
typedef BaseMeshTopology::VertexTriangles VertexTriangles;
typedef BaseMeshTopology::EdgeTriangles EdgeTriangles;
typedef BaseMeshTopology::TriangleEdges TriangleEdges;
/**
* A class that modifies the topology by adding and removing triangles
*/
class SOFA_COMPONENT_CONTAINER_API ManifoldTriangleSetTopologyModifier : public TriangleSetTopologyModifier
{
public:
ManifoldTriangleSetTopologyModifier()
: TriangleSetTopologyModifier()
{
m_triSwap=this->initData(&m_triSwap, "swap 2 triangles by their index", "Debug : Test swap function (only while animate).");
m_swapMesh = this->initData (&m_swapMesh, false, "Mesh Optimization", "If true, optimize the mesh only by swaping edges");
}
virtual ~ManifoldTriangleSetTopologyModifier() {}
virtual void init();
virtual void reinit();
virtual void Debug(); // TO BE REMOVED WHEN CLASS IS SURE.
/** \brief: Swap a list of edges.
*
*/
void edgeSwapProcess (const sofa::helper::vector <EdgeID>& listEdges);
/** \brief: Swap the edge adjacent to the two input triangles (To be used by the ray pick interactor).
*
*/
void edgeSwapProcess (const TriangleID& indexTri1, const TriangleID& indexTri2);
/** \brief: Reorder the vertex in the array of a given edge. In order to be in the oriented in the right direction
* regarding the first triangle of m_triangleEdgeShellArray[ edgeIndex ].
*
*/
void reorderingEdge(const unsigned int edgeIndex);
/** \brief: Reorder the triangle vertex array around a given vertex.
*
*/
void reorderingTriangleVertexShell (const unsigned int vertexIndex);
/** \brief: Reorder the edge vertex array around a given vertex.
*
*/
void reorderingEdgeVertexShell (const unsigned int vertexIndex);
/** \brief: Reorder the three shell arrays around a list of given vertices.
*
*/
void reorderingTopologyOnROI (const sofa::helper::vector <unsigned int>& listVertex);
/** \brief: Reorder the mesh by swaping a list of edges.
* For each edge, check if topology will be better before swaping it.
*/
void swapRemeshing (sofa::helper::vector <EdgeID>& listEdges);
/** \brief: Reorder the whole mesh by swaping a all edges.
* For each edge, check if topology will be better before swaping it.
* @see swapRemeshing (const sofa::helper::vector <unsigned int>& listedges)
*/
void swapRemeshing ();
protected:
Data< sofa::helper::vector< unsigned int> > m_triSwap;
Data< bool > m_swapMesh;
/**\brief Preconditions to fulfill before removing triangles. In this class topology should stay manifold.
* This function call private functions to test the topology:
* @see createRemovingTrianglesFutureModifications()
* @see createRemovingEdgesFutureModifications()
* @see testRemovingModifications().
*/
virtual bool removeTrianglesPreconditions(const sofa::helper::vector< unsigned int >& items);
/**\brief Postprocessing to apply to the triangle topology. In this class topology should stay manifold.
* These functions reorder the triangles around each vertex where triangles have been deleted.
* In order that only one connexe composante stay. It call the internal functions:
* @see internalRemovingPostProcessingEdges()
* @see internalRemovingPostProcessingTriangles()
* @see updateRemovingModifications()
* @see reorderEdgeForRemoving()
*/
virtual void removeTrianglesPostProcessing(const sofa::helper::vector< unsigned int >& edgeToBeRemoved, const sofa::helper::vector< unsigned int >& vertexToBeRemoved );
/**\brief Preconditions to fulfill before adding triangles. In this class topology should stay manifold.
* Test if triangles could be added and stock the informations of where triangles are added in the map:
* @see m_modificationsEdge
*/
virtual bool addTrianglesPreconditions (const sofa::helper::vector <Triangle>& triangles);
/**\brief Postprocessing to apply to the triangle topology. In this class topology should stay manifold.
* Using the map @see m_modificationsEdge, reorder the different shells.
*/
virtual void addTrianglesPostProcessing(const sofa::helper::vector <Triangle>& triangles);
private:
ManifoldTriangleSetTopologyContainer* m_container;
/** \brief iterator for the map.
*/
std::map< unsigned int, sofa::helper::vector<unsigned int> >::iterator it_modif;
std::map< unsigned int, sofa::helper::vector<int> >::iterator it_add;
/** \brief This map store all the modifications (for the triangles) to apply to the topology.
*/
std::map< unsigned int, sofa::helper::vector <unsigned int> > m_modifications;
/** \brief This vector store all the modifications (for the edges) to apply to the topology.
*/
sofa::helper::vector< unsigned int> m_modificationsEdge;
/** \brief This map store all the modifications (for the triangles) to apply to the topology.
*/
std::map< unsigned int, sofa::helper::vector <int> > m_Addmodifications;
/** Fill the vector m_modificationEdge with the 3 edges of each triangle to be removed (without duplications).
* This is needed,if orientations of edges have to be changed (always oriented in the right direction regarding the
* first or the only one triangle of m_TriangleEdgeShellArray[ the_edge ]);
*/
void createRemovingEdgesFutureModifications (const sofa::helper::vector <unsigned int> items);
/** Create the vector m_modifications which store the modifications to apply to the topology.
* Thus, tests can be done before any triangle(s) removal, in order to keep the topology Manifold.
* m_modifications[0] = vertex index number.
* m_modifications[i>0] = 0 (no change) or 1 (remove m_triangleVertexShell[ m_modifications[0] ][i+1])
*/
void createRemovingTrianglesFutureModifications(const sofa::helper::vector< unsigned int >& items);
/** Test the modifications to apply around one vertex. After removing triangles, only one connexe composante
* should stay.
*/
bool testRemovingModifications();
/** According to m_modification map, reorder the m_triangleVertexShellArray.
*
*/
void internalRemovingPostProcessingTriangles();
/** According to m_modificationEdge vector, reorder the m_EdgeVertexShellArray.
*
*/
void internalRemovingPostProcessingEdges();
/** If isolate edges or vertices have to be removed during the operation. This function update the information in the container:
* m_modification and m_modificationEdge
*
*/
void updateRemovingModifications (const sofa::helper::vector< unsigned int >& edgeToBeRemoved, const sofa::helper::vector< unsigned int >& vertexToBeRemoved);
/** For each edge of m_modificationEdge, this function call ManifoldTriangleSetTopologyContainer::reorderingEdge() to
* change the orientation of the edge if needed.
*
*/
void reorderEdgeForRemoving();
/**\brief Function swaping edge between two adjacents triangles. Create two new triangles and remove the two old one.
* This function call private functions of the container reordering the different shells.
* Different from the others used in adding and removing triangles which are faster but need informations of
* the state's topology before modifications.
* @see ManifoldTriangleSetTopologyContainer::reorderingTopologyOnROI()
* @param index of first triangle.
* @param index of second triangle adjacent to the first one.
*/
void edgeSwap (const EdgeID& indexEdge);
};
} // namespace topology
} // namespace component
} // namespace sofa
#endif
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