#pragma region CPL License
/*
Nuclex Native Framework
Copyright (C) 2002-2015 Nuclex Development Labs

This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.

You should have received a copy of the IBM Common Public
License along with this library
*/
#pragma endregion // CPL License

// If the library is compiled as a DLL, this ensures symbols are exported
#define NUCLEX_GEOMETRY_SOURCE 1

#include "Nuclex/Geometry/Lines/Generators/PolyLine2Generator.h"
#include <gtest/gtest.h>

namespace Nuclex { namespace Geometry { namespace Lines { namespace Generators {

  // ------------------------------------------------------------------------------------------- //

  TEST(PolyLine2GeneratorTest, DouglasPeuckerSimplificationEliminatesPoints) {
    PolyLine2<float> polyLine;
    polyLine.Vertices.push_back(Point2<float>(1.0f, 5.0f));
    polyLine.Vertices.push_back(Point2<float>(3.0f, 5.0f));
    polyLine.Vertices.push_back(Point2<float>(5.0f, 5.0f));
    polyLine.Vertices.push_back(Point2<float>(7.0f, 5.0f));
    polyLine.Vertices.push_back(Point2<float>(7.0f, 3.0f));
    polyLine.Vertices.push_back(Point2<float>(7.0f, 1.0f));

    PolyLine2<float> simplified = PolyLine2Generator<float>::GetDouglasPeuckerSimplified(
      polyLine, 0.1f
    );
    EXPECT_EQ(3, simplified.Vertices.size());
    EXPECT_EQ(polyLine.Vertices[0], simplified.Vertices[0]);
    EXPECT_EQ(polyLine.Vertices[3], simplified.Vertices[1]);
    EXPECT_EQ(polyLine.Vertices[5], simplified.Vertices[2]);
  }

  // ------------------------------------------------------------------------------------------- //

}}}} // namespace Nuclex::Geometry::Lines::Generators