algorithm/Rectangle.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2023  Paul Ramsey <pramsey@cleverelephant.ca>
 *
 * This is free software; you can redistribute and/or modify it under
 * the terms of the GNU Lesser General Public Licence as published
 * by the Free Software Foundation.
 * See the COPYING file for more information.
 *
 **********************************************************************/
 
#pragma once
 
#include <geos/export.h>
#include <geos/geom/LineSegment.h>
 
// Forward declarations
namespace geos {
namespace geom {
class Coordinate;
class GeometryFactory;
class Polygon;
}
}
 
namespace geos {
namespace algorithm {
 
class GEOS_DLL Rectangle {
    using CoordinateXY = geos::geom::CoordinateXY;
    using GeometryFactory = geos::geom::GeometryFactory;
    using LineSegment = geos::geom::LineSegment;
    using Polygon = geos::geom::Polygon;
 
public:

    static std::unique_ptr<Polygon>
        createFromSidePts(
            const CoordinateXY& baseRightPt,
            const CoordinateXY& baseLeftPt,
            const CoordinateXY& oppositePt,
            const CoordinateXY& leftSidePt,
            const CoordinateXY& rightSidePt,
            const GeometryFactory* factory);
 
private:

    static double
        computeLineEquationC(double a, double b, const CoordinateXY& p);
 
    static LineSegment
        createLineForStandardEquation(double a, double b, double c);
 
};
 
 
} // namespace geos::algorithm
} // namespace geos