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/*
* 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __FREESTYLE_INTERFACE_1D_H__
#define __FREESTYLE_INTERFACE_1D_H__
/** \file
* \ingroup freestyle
* \brief Interface 1D and related tools definitions
*/
#include <float.h>
#include <iostream>
#include <string>
#include "Functions0D.h"
#include "../system/Id.h"
#include "../system/Precision.h"
#include "../winged_edge/Nature.h"
#ifdef WITH_CXX_GUARDEDALLOC
# include "MEM_guardedalloc.h"
#endif
using namespace std;
namespace Freestyle {
// Integration method
/*! The different integration methods that can be invoked to integrate into a single value the set
* of values obtained from each 0D element of a 1D element.
*/
typedef enum {
MEAN, /*!< The value computed for the 1D element is the mean of the values obtained for the 0D
elements.*/
MIN, /*!< The value computed for the 1D element is the minimum of the values obtained for the 0D
elements.*/
MAX, /*!< The value computed for the 1D element is the maximum of the values obtained for the 0D
elements.*/
FIRST, /*!< The value computed for the 1D element is the first of the values obtained for the 0D
elements.*/
LAST, /*!< The value computed for the 1D element is the last of the values obtained for the 0D
elements.*/
} IntegrationType;
/*! Returns a single value from a set of values evaluated at each 0D element of this 1D element.
* \param fun:
* The UnaryFunction0D used to compute a value at each Interface0D.
* \param it:
* The Interface0DIterator used to iterate over the 0D elements of this 1D element. The
* integration will occur over the 0D elements starting from the one pointed by it. \param it_end:
* The Interface0DIterator pointing the end of the 0D elements of the 1D element.
* \param integration_type:
* The integration method used to compute a single value from a set of values.
* \return the single value obtained for the 1D element.
*/
template<class T>
T integrate(UnaryFunction0D<T> &fun,
Interface0DIterator it,
Interface0DIterator it_end,
IntegrationType integration_type = MEAN)
{
T res;
unsigned size;
switch (integration_type) {
case MIN:
fun(it);
res = fun.result;
++it;
for (; !it.isEnd(); ++it) {
fun(it);
if (fun.result < res) {
res = fun.result;
}
}
break;
case MAX:
fun(it);
res = fun.result;
++it;
for (; !it.isEnd(); ++it) {
fun(it);
if (fun.result > res) {
res = fun.result;
}
}
break;
case FIRST:
fun(it);
res = fun.result;
break;
case LAST:
fun(--it_end);
res = fun.result;
break;
case MEAN:
default:
fun(it);
res = fun.result;
++it;
for (size = 1; !it.isEnd(); ++it, ++size) {
fun(it);
res += fun.result;
}
res /= (size ? size : 1);
break;
}
return res;
}
//
// Interface1D
//
//////////////////////////////////////////////////
/*! Base class for any 1D element. */
class Interface1D {
public:
/*! Default constructor */
Interface1D()
{
_timeStamp = 0;
}
/*! Destructor */
virtual ~Interface1D(){};
/*! Returns the string "Interface1D". */
virtual string getExactTypeName() const
{
return "Interface1D";
}
// Iterator access
/*! Returns an iterator over the Interface1D vertices, pointing to the first vertex. */
virtual Interface0DIterator verticesBegin();
/*! Returns an iterator over the Interface1D vertices, pointing after the last vertex. */
virtual Interface0DIterator verticesEnd();
/*! Returns an iterator over the Interface1D points, pointing to the first point. The difference
* with verticesBegin() is that here we can iterate over points of the 1D element at a any given
* sampling. Indeed, for each iteration, a virtual point is created.
*
* \param t: The sampling with which we want to iterate over points of this 1D element.
*/
virtual Interface0DIterator pointsBegin(float t = 0.0f);
/*! Returns an iterator over the Interface1D points, pointing after the last point. The
* difference with verticesEnd() is that here we can iterate over points of the 1D element at a
* any given sampling. Indeed, for each iteration, a virtual point is created.
*
* \param t: The sampling with which we want to iterate over points of this 1D element.
*/
virtual Interface0DIterator pointsEnd(float t = 0.0f);
// Data access methods
/*! Returns the 2D length of the 1D element. */
virtual real getLength2D() const;
/*! Returns the Id of the 1D element. */
virtual Id getId() const;
// FIXME: ce truc n'a rien a faire la...(c une requete complexe qui doit etre ds les Function1D)
/*! Returns the nature of the 1D element. */
virtual Nature::EdgeNature getNature() const;
/*! Returns the time stamp of the 1D element. Mainly used for selection. */
virtual unsigned getTimeStamp() const
{
return _timeStamp;
}
/*! Sets the time stamp for the 1D element. */
inline void setTimeStamp(unsigned iTimeStamp)
{
_timeStamp = iTimeStamp;
}
protected:
unsigned _timeStamp;
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:Interface1D")
#endif
};
} /* namespace Freestyle */
#endif // __FREESTYLE_INTERFACE_1D_H__
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