DtEaser.h

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/*******************************************************************************
** Copyright (c) 2015 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/


#pragma once

#include <vrvUtil/vrvUtil.h>

namespace makVrv
{
   class DT_DLL_VRVUTIL DtEaser
   {
      public:
         DtEaser(float x1, float y1, float x2, float y2);
         virtual ~DtEaser();

         float getEasedValue(float atX);

      protected:
         float calcBezier(float aT, float ax1, float ax2);
         float getSlope(float at, float a1, float a2);
         float getTforX(float x);

         float myX1;
         float myY1;
         float myX2;
         float myY2;
   };
}