LinearCharacteristics.cpp

00001 #include "LinearCharacteristics.h"
00002 
00003 using namespace std;
00004 
00005 LinearCharacteristics::LinearCharacteristics(float gain,float offset){    // standard lin characteristics
00006     this->gain = gain;
00007     this->offset = offset;
00008     this->ulim = 999999.0;
00009     this->llim = -999999.0;
00010 }
00011 
00012 LinearCharacteristics::LinearCharacteristics(float xmin,float xmax, float ymin, float ymax){    // standard lin characteristics
00013     this->gain = (ymax - ymin)/(xmax - xmin);
00014     this->offset = xmax - ymax/this->gain;
00015     this->ulim = 999999.0;
00016     this->llim = -999999.0;
00017     
00018 }
00019 LinearCharacteristics::LinearCharacteristics(float xmin,float xmax, float ymin, float ymax,float ll, float ul){    // standard lin characteristics
00020     this->gain = (ymax - ymin)/(xmax - xmin);
00021     this->offset = xmax - ymax/this->gain;
00022     this->llim = ll;
00023     this->ulim = ul;
00024     
00025 }
00026 
00027 LinearCharacteristics::~LinearCharacteristics() {}
00028 
00029 
00030 float LinearCharacteristics::evaluate(float x)
00031 {   
00032 float dum = this->gain*(x - this->offset);
00033 if(dum > this->ulim)
00034     dum = this->ulim;
00035 if(dum < this->llim)
00036     dum = this->llim;
00037 return dum;
00038     }
00039 
00040 void LinearCharacteristics::setup(float xmin,float xmax, float ymin, float ymax){    // standard lin characteristics
00041     this->gain = (ymax - ymin)/(xmax - xmin);
00042     this->offset = xmax - ymax/this->gain;
00043     this->ulim = 999999.0;
00044     this->llim = -999999.0;   
00045 }
00046 void LinearCharacteristics::setup(float xmin,float xmax, float ymin, float ymax,float ll, float ul){    // standard lin characteristics
00047     this->gain = (ymax - ymin)/(xmax - xmin);
00048     this->offset = xmax - ymax/this->gain;
00049     this->llim = ll;
00050     this->ulim = ul; 
00051 }
00052