mirror of
https://github.com/RobTillaart/Arduino.git
synced 2024-10-03 18:09:02 -04:00
93a4857bc4
+ added back function to "reverse map" + fastMapDemo2 shows usage of 2 FastMaps + fastMapDemo3 shows usage of back function + FASTMAP_LIB_VERSION in PROGMEM
44 lines
921 B
C++
44 lines
921 B
C++
//
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// FILE: FastMap.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.05
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// PURPOSE: class implementation of 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("0.1.05"))
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class FastMap
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{
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public:
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void init(float in_min, float in_max, float out_min, float out_max);
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float inline map(float value) { return _base + value * _factor; }
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float inline back(float value) { return _backbase + value * _backfactor; }
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float constrainedMap(float value);
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float lowerConstrainedMap(float value);
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float upperConstrainedMap(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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//
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// END OF FILE
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//
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