CStransform.cxx

//*************************************************************************
//  CSTransform.cxx  - 4/14/2008
//
//  by miham
//
//  We use this class to transform real coordinate values from MWDC and
//  Scintillators (that we get from data) to pixels inside a canvas, where we
//  want to draw out data.
//
//
//*************************************************************************

#include "CStransform.h"
#include "TMath.h"
#include <cstring>
#include <cstdio>
#include <iostream>
#include <sstream>


using namespace std;


CStransform::~CStransform()
{

}

CStransform::CStransform (double A, double cX0, double cY0)
{
    // A is length in meters
    alpha = 1.0/A;
    CX0 = cX0;
    CY0 = cY0;
}

CStransform::CStransform (double A, double cX0, double cY0, int rotation)
{
    alpha = 1.0/A;  // A is length in meters
    if (rotation == 1) {
        CX0 = cX0;
        CY0 = cY0;
    } else {
        CX0 = -cY0;
        CY0 = cX0;
    }
}

double CStransform::transXtoCX(double x)
{
    return alpha*x+CX0;
}

double CStransform::transYtoCY(double y)
{
    return alpha*y+CY0;
}

double CStransform::transLtoCL(double l)
{
    return alpha*l;
}

double CStransform::GetAlpha()
{
    return alpha;
}