/disk1/scratch/aselle/projects/seexpr/SeExpr/src/SeExpr/SeCurve.h

Go to the documentation of this file.

/*
* (c) Disney Enterprises, Inc.  All rights reserved.
*
* This file is licensed under the terms of the Microsoft Public License (MS-PL)
* as defined at: http://opensource.org/licenses/MS-PL.
*
* A complete copy of this license is included in this distribution as the file
* LICENSE.
*/
#ifndef _CurveData_h_
#define _CurveData_h_

#include "SeVec3d.h"
#include <vector>

#include <cfloat>
#include <cassert>

namespace SeExpr{


template <class T>
class SeCurve
{
    mutable int cacheCV;
public:
    enum InterpType { kNone=0, kLinear, kSmooth, kSpline, kMonotoneSpline };
    struct CV{
        CV(double pos,const T& val,InterpType type)
            :_pos(pos),_val(val),_interp(type)
        {}

        double _pos;
        T _val,_deriv;
        InterpType _interp;
    };
private:
    std::vector<CV> _cvData;
    bool prepared;
public:
    SeCurve();

    void addPoint(double position,const T& val,InterpType type);

    void preparePoints();

    T getValue(const double param) const;

    double getChannelValue(const double param,int channel) const;

    CV getLowerBoundCV(const double param) const;

    static bool interpTypeValid(InterpType interp);

    static bool cvLessThan(const CV &cv1, const CV &cv2);
private:
    void clampCurveSegment(const T& delta,T& d1,T& d2);

    static double comp(const T& val,const int i);
};

}
#endif

---