generalFunctions.cpp

00001 #include "generalFunctions.h"
00002 
00003 float generalFunctions::sign_f(float in)
00004 {
00005     if(in >= 0) return 1;
00006     else        return -1;
00007 }
00008 
00009 float generalFunctions::abs_f(float in)
00010 {
00011     if(in >= 0) return in;
00012     else        return (-1.0*in);
00013 }
00014 
00015 float generalFunctions::map_f(float in, float in_min, float in_max, float out_min, float out_max)
00016 {
00017     return (in - in_min)*(out_max - out_min)/(in_max - in_min) + out_min;
00018 }
00019 
00020 float generalFunctions::constrain_f(float in, float out_min, float out_max)
00021 {
00022     if(in <= out_min)
00023         return (out_min);
00024     else if(in >= out_max)
00025         return (out_max);
00026     else
00027         return (in);
00028 }
00029 
00030 float generalFunctions::moving_window(float array[], unsigned int window_size)
00031 {
00032     float movAvg_out=0;
00033 
00034     for(volatile unsigned int i=0; i<window_size; i++) {
00035         movAvg_out += array[i];
00036     }
00037 
00038     movAvg_out = movAvg_out/((float)window_size);
00039 
00040     return (movAvg_out);
00041 }