TransferFunc.h

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// vim:set ts=4 sw=4 noet cin:

#ifndef TRANSFERFUNC_H_
#define TRANSFERFUNC_H_

#include "Color.h"

class TransferFunc {
        public:
                TransferFunc(Color color, float thr);
                
                Color getColor(float val);
                void setColor(Color c) { mColor = c; }
                void setOpacity(Color::ColorUnit a) { mColor.setA(a); }
                void setRGB(Color::ColorUnit r, Color::ColorUnit g, Color::ColorUnit b);
                
                void setUpperThr(float thr);
                void setLowerThr(float thr);

                void setThr(float thr){ mThr = thr;}
                float thr() {return mThr;}
                
        private:
                
                Color mColor;
                
                float mThr, mLowerThr, mUpperThr;
                float mLowerDivisor , mUpperDivisor;    //for optimization
};


#endif

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