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openmesh/Core/Mesh/BaseKernel.hh
Jan Möbius 97f515985d First checkin for OpenMesh 2.0 
git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@2 fdac6126-5c0c-442c-9429-916003d36597
2009-02-06 13:37:46 +00:00

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//=============================================================================
//
// OpenMesh
// Copyright (C) 2003 by Computer Graphics Group, RWTH Aachen
// www.openmesh.org
//
//-----------------------------------------------------------------------------
//
// License
//
// 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, version 2.
//
// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
//
//-----------------------------------------------------------------------------
//
// $Revision: 1801 $
// $Date: 2008-05-19 11:53:56 +0200 (Mo, 19. Mai 2008) $
//
//=============================================================================
//=============================================================================
//
// CLASS BaseKernel
//
//=============================================================================
#ifndef OPENMESH_BASE_KERNEL_HH
#define OPENMESH_BASE_KERNEL_HH
//== INCLUDES =================================================================
#include <OpenMesh/Core/System/config.h>
// --------------------
#include <vector>
#include <string>
#include <algorithm>
// --------------------
#include <OpenMesh/Core/Utils/PropertyContainer.hh>
//== NAMESPACES ===============================================================
namespace OpenMesh {
//== CLASS DEFINITION =========================================================
/// This class provides the basic property management like adding/removing
/// properties and access to properties.
/// All operations provided by %BaseKernel need at least a property handle
/// (VPropHandleT, EPropHandleT, HPropHandleT, FPropHandleT, MPropHandleT).
/// which keeps the data type of the property, too.
///
/// There are two types of properties:
/// -# Standard properties - mesh data (e.g. vertex normal or face color)
/// -# Custom properties - user defined data
///
/// The differentiation is only semantically, technically both are
/// equally handled. Therefore the methods provided by the %BaseKernel
/// are applicable to both property types.
///
/// \attention Since the class PolyMeshT derives from a kernel, hence all public
/// elements of %BaseKernel are usable.
class BaseKernel
{
public: //-------------------------------------------- constructor / destructor
BaseKernel() {}
virtual ~BaseKernel() {}
public: //-------------------------------------------------- add new properties
/// \name Add a property to a mesh item
//@{
/** Adds a property
*
* Depending on the property handle type a vertex, (half-)edge, face or
* mesh property is added to the mesh. If the action fails the handle
* is invalid.
* On success the handle must be used to access the property data with
* property().
*
* \param _ph A property handle defining the data type to bind to mesh.
* On success the handle is valid else invalid.
* \param _name Optional name of property. Following restrictions apply
* to the name:
* -# Maximum length of name is 256 characters
* -# The prefixes matching "^[vhefm]:" are reserved for
* internal usage.
* -# The expression "^<.*>$" is reserved for internal usage.
* \return \c true on success else \c false.
*
*/
template <class T>
void add_property( VPropHandleT<T>& _ph, const std::string& _name="<vprop>")
{
_ph = VPropHandleT<T>( vprops_.add(T(), _name) );
vprops_.resize(n_vertices());
}
template <class T>
void add_property( HPropHandleT<T>& _ph, const std::string& _name="<hprop>")
{
_ph = HPropHandleT<T>( hprops_.add(T(), _name) );
hprops_.resize(n_halfedges());
}
template <class T>
void add_property( EPropHandleT<T>& _ph, const std::string& _name="<eprop>")
{
_ph = EPropHandleT<T>( eprops_.add(T(), _name) );
eprops_.resize(n_edges());
}
template <class T>
void add_property( FPropHandleT<T>& _ph, const std::string& _name="<fprop>")
{
_ph = FPropHandleT<T>( fprops_.add(T(), _name) );
fprops_.resize(n_faces());
}
template <class T>
void add_property( MPropHandleT<T>& _ph, const std::string& _name="<mprop>")
{
_ph = MPropHandleT<T>( mprops_.add(T(), _name) );
mprops_.resize(1);
}
//@}
public: //--------------------------------------------------- remove properties
/// \name Removing a property from a mesh tiem
//@{
/** Remove a property.
*
* Removes the property represented by the handle from the apropriate
* mesh item.
* \param _ph Property to be removed. The handle is invalid afterwords.
*/
template <typename T>
void remove_property(VPropHandleT<T>& _ph)
{
if (_ph.is_valid())
vprops_.remove(_ph);
_ph.reset();
}
template <typename T>
void remove_property(HPropHandleT<T>& _ph)
{
if (_ph.is_valid())
hprops_.remove(_ph);
_ph.reset();
}
template <typename T>
void remove_property(EPropHandleT<T>& _ph)
{
if (_ph.is_valid())
eprops_.remove(_ph);
_ph.reset();
}
template <typename T>
void remove_property(FPropHandleT<T>& _ph)
{
if (_ph.is_valid())
fprops_.remove(_ph);
_ph.reset();
}
template <typename T>
void remove_property(MPropHandleT<T>& _ph)
{
if (_ph.is_valid())
mprops_.remove(_ph);
_ph.reset();
}
//@}
public: //------------------------------------------------ get handle from name
/// \name Get property handle by name
//@{
/** Retrieves the handle to a named property by it's name.
*
* \param _ph A property handle. On success the handle is valid else
* invalid.
* \param _name Name of wanted property.
* \return \c true if such a named property is available, else \c false.
*/
template <class T>
bool get_property_handle(VPropHandleT<T>& _ph,
const std::string& _name) const
{
return (_ph = VPropHandleT<T>(vprops_.handle(T(), _name))).is_valid();
}
template <class T>
bool get_property_handle(HPropHandleT<T>& _ph,
const std::string& _name) const
{
return (_ph = HPropHandleT<T>(hprops_.handle(T(), _name))).is_valid();
}
template <class T>
bool get_property_handle(EPropHandleT<T>& _ph,
const std::string& _name) const
{
return (_ph = EPropHandleT<T>(eprops_.handle(T(), _name))).is_valid();
}
template <class T>
bool get_property_handle(FPropHandleT<T>& _ph,
const std::string& _name) const
{
return (_ph = FPropHandleT<T>(fprops_.handle(T(), _name))).is_valid();
}
template <class T>
bool get_property_handle(MPropHandleT<T>& _ph,
const std::string& _name) const
{
return (_ph = MPropHandleT<T>(mprops_.handle(T(), _name))).is_valid();
}
//@}
public: //--------------------------------------------------- access properties
/// \name Access a property
//@{
/** Access a property
*
* This method returns a reference to property. The property handle
* must be valid! The result is unpredictable if the handle is invalid!
*
* \param _ph A \em valid (!) property handle.
* \return The wanted property if the handle is valid.
*/
template <class T>
PropertyT<T>& property(VPropHandleT<T> _ph) {
return vprops_.property(_ph);
}
template <class T>
const PropertyT<T>& property(VPropHandleT<T> _ph) const {
return vprops_.property(_ph);
}
template <class T>
PropertyT<T>& property(HPropHandleT<T> _ph) {
return hprops_.property(_ph);
}
template <class T>
const PropertyT<T>& property(HPropHandleT<T> _ph) const {
return hprops_.property(_ph);
}
template <class T>
PropertyT<T>& property(EPropHandleT<T> _ph) {
return eprops_.property(_ph);
}
template <class T>
const PropertyT<T>& property(EPropHandleT<T> _ph) const {
return eprops_.property(_ph);
}
template <class T>
PropertyT<T>& property(FPropHandleT<T> _ph) {
return fprops_.property(_ph);
}
template <class T>
const PropertyT<T>& property(FPropHandleT<T> _ph) const {
return fprops_.property(_ph);
}
template <class T>
PropertyT<T>& mproperty(MPropHandleT<T> _ph) {
return mprops_.property(_ph);
}
template <class T>
const PropertyT<T>& mproperty(MPropHandleT<T> _ph) const {
return mprops_.property(_ph);
}
//@}
public: //-------------------------------------------- access property elements
/// \name Access a property element using a handle to a mesh item
//@{
/** Return value of property for an item
*/
template <class T>
typename VPropHandleT<T>::reference
property(VPropHandleT<T> _ph, VertexHandle _vh) {
return vprops_.property(_ph)[_vh.idx()];
}
template <class T>
typename VPropHandleT<T>::const_reference
property(VPropHandleT<T> _ph, VertexHandle _vh) const {
return vprops_.property(_ph)[_vh.idx()];
}
template <class T>
typename HPropHandleT<T>::reference
property(HPropHandleT<T> _ph, HalfedgeHandle _hh) {
return hprops_.property(_ph)[_hh.idx()];
}
template <class T>
typename HPropHandleT<T>::const_reference
property(HPropHandleT<T> _ph, HalfedgeHandle _hh) const {
return hprops_.property(_ph)[_hh.idx()];
}
template <class T>
typename EPropHandleT<T>::reference
property(EPropHandleT<T> _ph, EdgeHandle _eh) {
return eprops_.property(_ph)[_eh.idx()];
}
template <class T>
typename EPropHandleT<T>::const_reference
property(EPropHandleT<T> _ph, EdgeHandle _eh) const {
return eprops_.property(_ph)[_eh.idx()];
}
template <class T>
typename FPropHandleT<T>::reference
property(FPropHandleT<T> _ph, FaceHandle _fh) {
return fprops_.property(_ph)[_fh.idx()];
}
template <class T>
typename FPropHandleT<T>::const_reference
property(FPropHandleT<T> _ph, FaceHandle _fh) const {
return fprops_.property(_ph)[_fh.idx()];
}
template <class T>
typename MPropHandleT<T>::reference
property(MPropHandleT<T> _ph) {
return mprops_.property(_ph)[0];
}
template <class T>
typename MPropHandleT<T>::const_reference
property(MPropHandleT<T> _ph) const {
return mprops_.property(_ph)[0];
}
//@}
protected: //------------------------------------------------- low-level access
public: // used by non-native kernel and MeshIO, should be protected
size_t n_vprops(void) const { return vprops_.size(); }
size_t n_eprops(void) const { return eprops_.size(); }
size_t n_hprops(void) const { return hprops_.size(); }
size_t n_fprops(void) const { return fprops_.size(); }
size_t n_mprops(void) const { return mprops_.size(); }
BaseProperty* _get_vprop( const std::string& _name)
{ return vprops_.property(_name); }
BaseProperty* _get_eprop( const std::string& _name)
{ return eprops_.property(_name); }
BaseProperty* _get_hprop( const std::string& _name)
{ return hprops_.property(_name); }
BaseProperty* _get_fprop( const std::string& _name)
{ return fprops_.property(_name); }
BaseProperty* _get_mprop( const std::string& _name)
{ return mprops_.property(_name); }
const BaseProperty* _get_vprop( const std::string& _name) const
{ return vprops_.property(_name); }
const BaseProperty* _get_eprop( const std::string& _name) const
{ return eprops_.property(_name); }
const BaseProperty* _get_hprop( const std::string& _name) const
{ return hprops_.property(_name); }
const BaseProperty* _get_fprop( const std::string& _name) const
{ return fprops_.property(_name); }
const BaseProperty* _get_mprop( const std::string& _name) const
{ return mprops_.property(_name); }
BaseProperty& _vprop( size_t _idx ) { return vprops_._property( _idx ); }
BaseProperty& _eprop( size_t _idx ) { return eprops_._property( _idx ); }
BaseProperty& _hprop( size_t _idx ) { return hprops_._property( _idx ); }
BaseProperty& _fprop( size_t _idx ) { return fprops_._property( _idx ); }
BaseProperty& _mprop( size_t _idx ) { return mprops_._property( _idx ); }
const BaseProperty& _vprop( size_t _idx ) const
{ return vprops_._property( _idx ); }
const BaseProperty& _eprop( size_t _idx ) const
{ return eprops_._property( _idx ); }
const BaseProperty& _hprop( size_t _idx ) const
{ return hprops_._property( _idx ); }
const BaseProperty& _fprop( size_t _idx ) const
{ return fprops_._property( _idx ); }
const BaseProperty& _mprop( size_t _idx ) const
{ return mprops_._property( _idx ); }
size_t _add_vprop( BaseProperty* _bp ) { return vprops_._add( _bp ); }
size_t _add_eprop( BaseProperty* _bp ) { return eprops_._add( _bp ); }
size_t _add_hprop( BaseProperty* _bp ) { return hprops_._add( _bp ); }
size_t _add_fprop( BaseProperty* _bp ) { return fprops_._add( _bp ); }
size_t _add_mprop( BaseProperty* _bp ) { return mprops_._add( _bp ); }
protected: // low-level access non-public
BaseProperty& _vprop( BaseHandle _h )
{ return vprops_._property( _h.idx() ); }
BaseProperty& _eprop( BaseHandle _h )
{ return eprops_._property( _h.idx() ); }
BaseProperty& _hprop( BaseHandle _h )
{ return hprops_._property( _h.idx() ); }
BaseProperty& _fprop( BaseHandle _h )
{ return fprops_._property( _h.idx() ); }
BaseProperty& _mprop( BaseHandle _h )
{ return mprops_._property( _h.idx() ); }
const BaseProperty& _vprop( BaseHandle _h ) const
{ return vprops_._property( _h.idx() ); }
const BaseProperty& _eprop( BaseHandle _h ) const
{ return eprops_._property( _h.idx() ); }
const BaseProperty& _hprop( BaseHandle _h ) const
{ return hprops_._property( _h.idx() ); }
const BaseProperty& _fprop( BaseHandle _h ) const
{ return fprops_._property( _h.idx() ); }
const BaseProperty& _mprop( BaseHandle _h ) const
{ return mprops_._property( _h.idx() ); }
public: //----------------------------------------------------- element numbers
virtual unsigned int n_vertices() const { return 0; }
virtual unsigned int n_halfedges() const { return 0; }
virtual unsigned int n_edges() const { return 0; }
virtual unsigned int n_faces() const { return 0; }
protected: //------------------------------------------- synchronize properties
void vprops_reserve(unsigned int _n) const { vprops_.reserve(_n); }
void vprops_resize(unsigned int _n) const { vprops_.resize(_n); }
void vprops_swap(unsigned int _i0, unsigned int _i1) const {
vprops_.swap(_i0, _i1);
}
void hprops_reserve(unsigned int _n) const { hprops_.reserve(_n); }
void hprops_resize(unsigned int _n) const { hprops_.resize(_n); }
void hprops_swap(unsigned int _i0, unsigned int _i1) const {
hprops_.swap(_i0, _i1);
}
void eprops_reserve(unsigned int _n) const { eprops_.reserve(_n); }
void eprops_resize(unsigned int _n) const { eprops_.resize(_n); }
void eprops_swap(unsigned int _i0, unsigned int _i1) const {
eprops_.swap(_i0, _i1);
}
void fprops_reserve(unsigned int _n) const { fprops_.reserve(_n); }
void fprops_resize(unsigned int _n) const { fprops_.resize(_n); }
void fprops_swap(unsigned int _i0, unsigned int _i1) const {
fprops_.swap(_i0, _i1);
}
void mprops_resize(unsigned int _n) const { mprops_.resize(_n); }
public:
void property_stats(std::ostream& _ostr = std::clog) const;
public:
typedef PropertyContainer::iterator prop_iterator;
typedef PropertyContainer::const_iterator const_prop_iterator;
prop_iterator vprops_begin() { return vprops_.begin(); }
prop_iterator vprops_end() { return vprops_.end(); }
const_prop_iterator vprops_begin() const { return vprops_.begin(); }
const_prop_iterator vprops_end() const { return vprops_.end(); }
prop_iterator eprops_begin() { return eprops_.begin(); }
prop_iterator eprops_end() { return eprops_.end(); }
const_prop_iterator eprops_begin() const { return eprops_.begin(); }
const_prop_iterator eprops_end() const { return eprops_.end(); }
prop_iterator hprops_begin() { return hprops_.begin(); }
prop_iterator hprops_end() { return hprops_.end(); }
const_prop_iterator hprops_begin() const { return hprops_.begin(); }
const_prop_iterator hprops_end() const { return hprops_.end(); }
prop_iterator fprops_begin() { return fprops_.begin(); }
prop_iterator fprops_end() { return fprops_.end(); }
const_prop_iterator fprops_begin() const { return fprops_.begin(); }
const_prop_iterator fprops_end() const { return fprops_.end(); }
prop_iterator mprops_begin() { return mprops_.begin(); }
prop_iterator mprops_end() { return mprops_.end(); }
const_prop_iterator mprops_begin() const { return mprops_.begin(); }
const_prop_iterator mprops_end() const { return mprops_.end(); }
private:
PropertyContainer vprops_;
PropertyContainer hprops_;
PropertyContainer eprops_;
PropertyContainer fprops_;
PropertyContainer mprops_;
};
//=============================================================================
} // namespace OpenMesh
//=============================================================================
#endif // OPENMESH_BASE_KERNEL_HH defined
//=============================================================================
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