fimCoord.hpp

//
// Copyright (c) Singular Inversions Inc. 2002.
//
// Authors:     Andrew Beatty
// Created:     January 31, 2002.
//
//      RCS := Raster CS, (0,0) at centre of top left pixel, each pixel of
//                      size one.
//
 
#ifndef FIM_COORD_HPP
#define FIM_COORD_HPP
 
#include "vect2.hpp"
#include "FgSerial.hpp"
 
namespace Fg {
 
inline
FutVect2FC
fimRcsToOics(
        FutVect2FC              rcs,            // Input
        uint                    wid,            // Image width
        uint                    hgt)            // Image height
{
        FGASSERT(wid > 0);
        FGASSERT(hgt > 0);
 
        FutVect2FC              oics;
 
        oics.x1 = (rcs.x1 + 0.5f) * 2.0f / (float)wid - 1.0f;
        oics.x2 = 1.0f - (rcs.x2 + 0.5f) * 2.0f / (float)hgt;
 
        return oics;
}
 
}
 
#endif