ResInsight/Fwk/AppFwk/cafVizExtensions/cafHexGridIntersectionTools/cafHexGridIntersectionTools_UnitTest/cafHexGridIntersectionToolsBasicTests.cpp

//##################################################################################################
//
//   Custom Visualization Core library
//   Copyright (C) Ceetron Solutions AS
//
//   This library may be used under the terms of either the GNU General Public License or
//   the GNU Lesser General Public License as follows:
//
//   GNU General Public License Usage
//   This library is free software: you can redistribute it and/or modify
//   it under the terms of the GNU General Public License as published by
//   the Free Software Foundation, either version 3 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 GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>>
//   for more details.
//
//   GNU Lesser General Public License Usage
//   This library is free software; you can redistribute it and/or modify
//   it under the terms of the GNU Lesser General Public License as published by
//   the Free Software Foundation; either version 2.1 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 GNU Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
//   for more details.
//
//##################################################################################################

#include <iostream>
#include "gtest/gtest.h"

#include "../cafHexGridIntersectionTools.h"

TEST(cafHexIntersectionTools, basic)
{

    std::vector<cvf::Vec3d> triangleVxes = {{0.0, 0.5, 0.0}, {1.0, 0.5, 0.0}, {0.0, 1.0, 0.0},  {1.0, 0.5, 0.0}, {1.0, 0.8, 0.0}, {0.0, 1.0, 0.0} };
    std::vector<cvf::Vec3d> polygon2 = {{0.5, 0.0, 2002.0}, {1.0, 0.0, 2000.0}, {0.5, 1.0, 2001.0}};

    const std::vector<int> cellFaceForEachTriangleEdge = { 1, 6, 4, 2, 3, 6 };
    const cvf::Vec3d tp1 = {0.5, 0.01, 0.0};
    const cvf::Vec3d tp2 = {1.0, 0.0, 0.0};
    const cvf::Vec3d tp3 = {0.5, 1.0, 0.0};
    std::vector<cvf::Vec3d> clippedTriangleVxes;
    std::vector<int> cellFaceForEachClippedTriangleEdge;

    caf::HexGridIntersectionTools::clipPlanarTrianglesWithInPlaneTriangle(triangleVxes,
                                                                          cellFaceForEachTriangleEdge,
                                                                          tp1,
                                                                          tp2,
                                                                          tp3,
                                                                          &clippedTriangleVxes,
                                                                          &cellFaceForEachClippedTriangleEdge);


    for ( auto& point : clippedTriangleVxes )
    {
        //std::cout << "   ( " << point[0] << ", " << point[1] << ", " << point[2] << " )" << std::endl;
    }

    for ( auto& face : cellFaceForEachClippedTriangleEdge )
    {
        //std::cout << "   [ " << face  << " ]" << std::endl;
    }
    EXPECT_NEAR(0.5,  clippedTriangleVxes[7][0], 1e-7);
    EXPECT_NEAR(0.5,  clippedTriangleVxes[7][1], 1e-7);
    EXPECT_NEAR(0.75, clippedTriangleVxes[2][0], 1e-7);
    EXPECT_NEAR(0.5,  clippedTriangleVxes[2][1], 1e-7);

    EXPECT_NEAR(0.555555, clippedTriangleVxes[13][0], 1e-5);
    EXPECT_NEAR(0.888888,  clippedTriangleVxes[13][1], 1e-5);
    EXPECT_NEAR(0.5,  clippedTriangleVxes[9][0], 1e-7);
    EXPECT_NEAR(0.9,  clippedTriangleVxes[9][1], 1e-7);

    EXPECT_EQ(6, cellFaceForEachClippedTriangleEdge[0]);
    EXPECT_EQ(6, cellFaceForEachClippedTriangleEdge[1]);
    EXPECT_EQ(6, cellFaceForEachClippedTriangleEdge[2]);
    EXPECT_EQ(6, cellFaceForEachClippedTriangleEdge[3]);
    EXPECT_EQ(6, cellFaceForEachClippedTriangleEdge[4]);
    EXPECT_EQ(6, cellFaceForEachClippedTriangleEdge[5]);
    EXPECT_EQ(6, cellFaceForEachClippedTriangleEdge[6]);

    EXPECT_EQ(1, cellFaceForEachClippedTriangleEdge[7]);
    EXPECT_EQ(6, cellFaceForEachClippedTriangleEdge[8]);
    EXPECT_EQ(6, cellFaceForEachClippedTriangleEdge[9]);
    EXPECT_EQ(6, cellFaceForEachClippedTriangleEdge[10]);
    EXPECT_EQ(6, cellFaceForEachClippedTriangleEdge[11]);
    EXPECT_EQ(6, cellFaceForEachClippedTriangleEdge[12]);
    EXPECT_EQ(3, cellFaceForEachClippedTriangleEdge[13]);
    EXPECT_EQ(6, cellFaceForEachClippedTriangleEdge[14]);

}