Quadrilateral.cpp

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// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2018 ISIS Rutherford Appleton Laboratory UKRI,
//   NScD Oak Ridge National Laboratory, European Spallation Source,
//   Institut Laue - Langevin & CSNS, Institute of High Energy Physics, CAS
// SPDX - License - Identifier: GPL - 3.0 +
//-----------------------------------------------------------------------------
// Includes
//-----------------------------------------------------------------------------
#include "MantidGeometry/Math/Quadrilateral.h"
#include "MantidKernel/Exception.h"
#include <algorithm>
 
namespace Mantid::Geometry {
using Kernel::V2D;
 
Quadrilateral::Quadrilateral(const V2D &lowerLeft, const V2D &lowerRight, const V2D &upperRight, const V2D &upperLeft)
    : ConvexPolygon(), m_vertices{{lowerLeft, upperLeft, upperRight, lowerRight}} {}
 
Quadrilateral::Quadrilateral(const double lowerX, const double upperX, const double lowerY, const double upperY)
    : ConvexPolygon(), m_vertices{
                           {V2D(lowerX, lowerY), V2D(lowerX, upperY), V2D(upperX, upperY), V2D(upperX, lowerY)}} {}
 
const Kernel::V2D &Quadrilateral::at(const size_t index) const {
  if (index > 3)
    throw Kernel::Exception::IndexError(index, npoints(), "Quadrilateral::at()");
  return (*this)[index];
}
 
bool Quadrilateral::contains(const Kernel::V2D &point) const {
  ConvexPolygon quadAsPoly = this->toPoly();
  return quadAsPoly.contains(point);
}
 
bool Quadrilateral::contains(const ConvexPolygon &poly) const {
  ConvexPolygon quadAsPoly = this->toPoly();
  return quadAsPoly.contains(poly);
}
 
ConvexPolygon Quadrilateral::toPoly() const {
  ConvexPolygon::Vertices points(4);
  points[0] = lowerLeft();
  points[1] = upperLeft();
  points[2] = upperRight();
  points[3] = lowerRight();
  return ConvexPolygon(points);
}
 
void Quadrilateral::shiftVertexesClockwise() {
  V2D temp = m_vertices[0];
  m_vertices[0] = m_vertices[1];
  m_vertices[1] = m_vertices[2];
  m_vertices[2] = m_vertices[3];
  m_vertices[3] = temp;
}
 
} // namespace Mantid::Geometry