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https://github.com/RobTillaart/Arduino.git
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58 lines
1.3 KiB
C++
58 lines
1.3 KiB
C++
#pragma once
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//
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// FILE: FastMap.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.4.0
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// PURPOSE: class with fast map function - library for Arduino
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// URL: https://github.com/RobTillaart/FastMap
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#include "Arduino.h"
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#define FASTMAP_LIB_VERSION (F("0.4.0"))
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class FastMap
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{
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public:
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FastMap();
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bool init(float in_min, float in_max, float out_min, 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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class FastMapDouble
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{
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public:
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FastMapDouble();
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bool init(double in_min, double in_max, double out_min, double out_max);
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double inline map (const double value) { return _base + value * _factor; }
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double inline back (const double value) { return _backbase + value * _backfactor; }
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double constrainedMap(const double value);
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double lowerConstrainedMap(const double value);
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double upperConstrainedMap(const double value);
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private:
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double _in_min, _in_max, _out_min, _out_max;
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double _factor, _base;
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double _backfactor, _backbase;
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};
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// -- END OF FILE --
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