mirror of
https://github.com/RobTillaart/Arduino.git
synced 2024-10-03 18:09:02 -04:00
71 lines
1.8 KiB
C++
71 lines
1.8 KiB
C++
#pragma once
|
|
//
|
|
// FILE: DistanceTable.h
|
|
// AUTHOR: Rob Tillaart
|
|
// VERSION: 0.3.3
|
|
// PURPOSE: Arduino library to store a symmetrical distance table in less memory
|
|
// URL: https://github.com/RobTillaart/DistanceTable
|
|
//
|
|
|
|
|
|
#include "Arduino.h"
|
|
|
|
|
|
#define DISTANCETABLE_LIB_VERSION (F("0.3.3"))
|
|
|
|
|
|
class DistanceTable
|
|
{
|
|
public:
|
|
explicit DistanceTable(uint8_t dimension, float value = 0);
|
|
~DistanceTable();
|
|
|
|
void clear() { setAll(0); };
|
|
void setAll(float value);
|
|
bool set(uint8_t x, uint8_t y, float value );
|
|
float get(uint8_t x, uint8_t y);
|
|
|
|
|
|
// the invert flag tells that get(x, y) == -get(y, x);
|
|
void setInvert(bool invert = false) { _invert = invert; };
|
|
bool getInvert() { return _invert; };
|
|
|
|
|
|
// minimum and maximum skip x == y pairs as these are 0.
|
|
float minimum(uint8_t &x, uint8_t &y);
|
|
float maximum(uint8_t &x, uint8_t &y);
|
|
float sum();
|
|
float average();
|
|
|
|
|
|
// epsilon allows 'almost equal' searches
|
|
// if (invert == false) count counts both (x,y) and (y,x) => always even nr.
|
|
// if (invert == true) count counts (x,y) and (y,x) separately.
|
|
// count skips x == y pairs so counting zero's is missing the diagonal.
|
|
uint16_t count(float value, float epsilon = 0.0);
|
|
uint16_t countAbove(float value);
|
|
uint16_t countBelow(float value);
|
|
|
|
|
|
// debug
|
|
// default dumps to Serial but other stream are possible
|
|
void dump(Print * stream = &Serial);
|
|
uint8_t dimension() { return _dimension; };
|
|
uint16_t elements() { return _elements; };
|
|
uint16_t memoryUsed() { return _elements * sizeof(float); };
|
|
|
|
|
|
// Obsolete in future 0.4.0
|
|
uint16_t size() { return memoryUsed(); };
|
|
|
|
protected:
|
|
uint8_t _dimension;
|
|
uint16_t _elements;
|
|
float * _distanceTable;
|
|
bool _invert;
|
|
};
|
|
|
|
|
|
// --- END OF FILE ---
|
|
|