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