tahoma2d/toonz/sources/include/ext/StrokeParametricDeformer.h
Toshihiro Shimizu 890dddabbd first commit
2016-03-19 02:57:51 +09:00

164 lines
3.6 KiB
C++

#ifndef STROKE_PARAMETRIC_DEFORMER_H
#define STROKE_PARAMETRIC_DEFORMER_H
/**
* @author Fabrizio Morciano <fabrizio.morciano@gmail.com>
*/
#include "tcommon.h"
#include "tstrokedeformations.h"
#undef DVAPI
#undef DVVAR
#ifdef TNZEXT_EXPORTS
#define DVAPI DV_EXPORT_API
#define DVVAR DV_EXPORT_VAR
#else
#define DVAPI DV_IMPORT_API
#define DVVAR DV_IMPORT_VAR
#endif
#if defined(WIN32) && (_MSC_VER <= 1200)
// to avoid annoying warning
#pragma warning(push)
#pragma warning(disable : 4290)
#endif
class TStroke;
namespace ToonzExt
{
class Potential;
/**
* @brief This class implements new deformer.
*
* New stroke deformer doesn't change last point of stroke.
*/
class DVAPI StrokeParametricDeformer
: public TStrokeDeformation
{
public:
StrokeParametricDeformer(double actionLenght,
double startParameter,
TStroke *s,
Potential *);
~StrokeParametricDeformer();
/**
* @brief Set mouse movement from last valid position.
* @param vx horyzontal
* @param vy vertical
*/
void
setMouseMove(double vx,
double vy);
/**
* @brief Return displacement to use with function increaseControlPoints
* @param stroke to test
* @param w stroke parameter
* @return displacement to apply to obtain deformation
* @sa increaseControlPoints
*/
TThickPoint
getDisplacement(const TStroke &stroke,
double w) const;
/**
* @brief Return displacement to use with function modifyControlPoints
* @param stroke to test
* @param n control point to get
* @return displacement to apply to obtain deformation
* @sa modifyControlPoints
*/
TThickPoint
getDisplacementForControlPoint(const TStroke &stroke,
UINT n) const;
TThickPoint
getDisplacementForControlPointLen(const TStroke &stroke,
double cpLen) const;
/**
* @brief This method compute the delta (gradient) referred to stroke in
* at parameter w.
*
* This value is the result of \f$ \frac{getDisplacement(stroke,w)}{dw} \f$.
* @note Sometimes this value can be approximated.
* @param stroke Stroke to test
* @param w Stroke parameter
* @return the @b gradient in w
*/
double
getDelta(const TStroke &stroke,
double w) const;
/**
* @brief Max diff of delta (This value indicates when it's necessary
* to insert control point)
* @return max displacement permitted
*/
double
getMaxDiff() const;
// just for debug
const Potential *
getPotential() const
{
return pot_;
}
/**
* @brief Change sensibility of deformer (just for debug).
*/
void
setDiff(double diff)
{
diff_ = diff;
}
/**
* @brief Retrieve the parameters range where is applied deformation.
*/
void
getRange(double &from,
double &to);
private:
StrokeParametricDeformer(const StrokeParametricDeformer &);
StrokeParametricDeformer &operator=(const StrokeParametricDeformer &);
// mouse incremental movement
double vx_, vy_;
// parameter where is applicated action
double startParameter_;
// like startParameter_ but recover lenght
double startLenght_;
// how many traits move
double actionLenght_;
// deformation shape
Potential *pot_;
// sensibility of deformer
// Indica il valore minimo a partire dal quale
// l'inseritore comincia a mettere punti di controllo
double diff_;
TStroke *ref_copy_;
};
}
#if defined(WIN32) && (_MSC_VER <= 1200)
#pragma warning(pop)
#endif
#endif /* STROKE_PARAMETRIC_DEFORMER_H */
//-----------------------------------------------------------------------------
// End Of File
//-----------------------------------------------------------------------------