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45 lines
979 B
C++
45 lines
979 B
C++
//
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// FILE: FastMap.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.8
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// PURPOSE: class with fast map function - library for Arduino
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// URL: http://forum.arduino.cc/index.php?topic=276194
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//
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// HISTORY:
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// see FastMap.cpp file
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//
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#ifndef FastMap_h
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#define FastMap_h
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#if ARDUINO < 100
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#include <WProgram.h>
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#else
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#include <Arduino.h>
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#endif
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#define FASTMAP_LIB_VERSION (F("0.1.8"))
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class FastMap
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{
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public:
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FastMap();
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void init(const float in_min, const float in_max, const float out_min, const float out_max);
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float inline map (const float value) { return _base + value * _factor; }
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float inline back (const float value) { return _backbase + value * _backfactor; }
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float constrainedMap(const float value);
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float lowerConstrainedMap(const float value);
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float upperConstrainedMap(const float value);
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private:
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float _in_min, _in_max, _out_min, _out_max;
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float _factor, _base;
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float _backfactor, _backbase;
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};
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#endif
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// END OF FILE
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