TPixelCoord.h

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/* +------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)            |
   |                          http://www.mrpt.org/                          |
   |                                                                        |
   | Copyright (c) 2005-2018, Individual contributors, see AUTHORS file     |
   | See: http://www.mrpt.org/Authors - All rights reserved.                |
   | Released under BSD License. See details in http://www.mrpt.org/License |
   +------------------------------------------------------------------------+ */
#pragma once
 
#include <iosfwd>
#include <utility>
 
namespace mrpt
{
namespace img
{
/** A pair (x,y) of pixel coordinates (subpixel resolution). \ingroup
 * mrpt_img_grp  */
struct TPixelCoordf
{
        /** The type of \a x and \a y */
        using pixel_coord_t = float;
 
        float x, y;
 
        /** Default constructor: undefined values of x,y */
        TPixelCoordf() : x(), y() {}
        /** Constructor from x,y values */
        TPixelCoordf(const float _x, const float _y) : x(_x), y(_y) {}
        template <typename T>
        TPixelCoordf(const std::pair<T,T>& p) : x(p.first), y(p.second) {}
};
 
/** Prints TPixelCoordf as "(x,y)" */
std::ostream& operator<<(std::ostream& o, const TPixelCoordf& p);
 
/** A pair (x,y) of pixel coordinates (integer resolution). */
struct TPixelCoord
{
        /** The type of \a x and \a y */
        using pixel_coord_t = int;
 
        TPixelCoord() : x(0), y(0) {}
        TPixelCoord(const int _x, const int _y) : x(_x), y(_y) {}
        int x, y;
};
 
/** Prints TPixelCoord as "(x,y)" */
std::ostream& operator<<(std::ostream& o, const TPixelCoord& p);
 
/** A type for image sizes. */
using TImageSize = TPixelCoord;
 
}  // namespace img
}  // namespace mrpt