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605 lines
18 KiB
C++
605 lines
18 KiB
C++
//##################################################################################################
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//
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// Custom Visualization Core library
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// Copyright (C) 2011-2013 Ceetron AS
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//
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// This library may be used under the terms of either the GNU General Public License or
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// the GNU Lesser General Public License as follows:
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//
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// GNU General Public License Usage
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// This library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>>
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// for more details.
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//
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// GNU Lesser General Public License Usage
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation; either version 2.1 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
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// for more details.
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//
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//##################################################################################################
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#include "cvfBase.h"
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#include "cvfRegGrid2D.h"
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#include "gtest/gtest.h"
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using namespace cvf;
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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TEST(RegGrid2D, AllocateGrid)
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{
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ref<RegGrid2D> regGrid2D = new RegGrid2D;
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EXPECT_TRUE(regGrid2D.notNull());
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regGrid2D->allocateGrid(10, 20);
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EXPECT_EQ(10, regGrid2D->gridPointCountI());
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EXPECT_EQ(20, regGrid2D->gridPointCountJ());
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regGrid2D->allocateGrid(0, 0);
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EXPECT_EQ(0, regGrid2D->gridPointCountI());
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EXPECT_EQ(0, regGrid2D->gridPointCountJ());
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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#ifdef CVF_ENABLE_ASSERTS
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TEST(RegGrid2DDeathTest, IllegalParametersAllocateGrid)
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{
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ref<RegGrid2D> regGrid2D = new RegGrid2D;
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EXPECT_TRUE(regGrid2D.notNull());
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EXPECT_DEATH(regGrid2D->allocateGrid(-1, 10), "Assertion");
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EXPECT_DEATH(regGrid2D->allocateGrid(10, -1), "Assertion");
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}
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#endif
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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TEST(RegGrid2D, Spacing)
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{
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ref<RegGrid2D> regGrid2D = new RegGrid2D;
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EXPECT_TRUE(regGrid2D.notNull());
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EXPECT_EQ(0.0, regGrid2D->spacing().x());
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EXPECT_EQ(0.0, regGrid2D->spacing().y());
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regGrid2D->setSpacing(Vec2d(2.3, 5.4));
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EXPECT_EQ(2.3, regGrid2D->spacing().x());
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EXPECT_EQ(5.4, regGrid2D->spacing().y());
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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#ifdef CVF_ENABLE_ASSERTS
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TEST(RegGrid2DDeathTest, IllegalParametersSpacing)
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{
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ref<RegGrid2D> regGrid2D = new RegGrid2D;
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EXPECT_TRUE(regGrid2D.notNull());
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EXPECT_DEATH(regGrid2D->setSpacing(Vec2d(-1, 10)), "Assertion");
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EXPECT_DEATH(regGrid2D->setSpacing(Vec2d(10, -1)), "Assertion");
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}
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#endif
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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TEST(RegGrid2D, Origo)
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{
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ref<RegGrid2D> regGrid2D = new RegGrid2D;
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EXPECT_TRUE(regGrid2D.notNull());
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EXPECT_EQ(0.0, regGrid2D->offset().x());
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EXPECT_EQ(0.0, regGrid2D->offset().y());
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regGrid2D->setOffset(Vec2d(2.3, 5.4));
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EXPECT_EQ(2.3, regGrid2D->offset().x());
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EXPECT_EQ(5.4, regGrid2D->offset().y());
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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TEST(RegGrid2D, ElevationValues)
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{
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ref<RegGrid2D> regGrid2D = new RegGrid2D;
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EXPECT_TRUE(regGrid2D.notNull());
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regGrid2D->allocateGrid(10, 20);
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DoubleArray values;
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values.resize(10 * 20);
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values.setAll(5);
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values.set(0, -10);
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values.set(1, 50);
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values.set(10 * 20 - 1, -99);
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regGrid2D->setElevations(values);
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double elevationValue = regGrid2D->elevation(0, 0);
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EXPECT_EQ(-10, elevationValue);
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elevationValue = regGrid2D->elevation(1, 0);
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EXPECT_EQ(50, elevationValue);
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elevationValue = regGrid2D->elevation(2, 0);
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EXPECT_EQ(5, elevationValue);
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elevationValue = regGrid2D->elevation(9, 19);
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EXPECT_EQ(-99, elevationValue);
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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#ifdef CVF_ENABLE_ASSERTS
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TEST(RegGrid2DDeathTest, InvalidParametersElevation)
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{
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ref<RegGrid2D> regGrid2D = new RegGrid2D;
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EXPECT_TRUE(regGrid2D.notNull());
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regGrid2D->allocateGrid(10, 20);
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EXPECT_DEATH(regGrid2D->setElevation(-1, 0, 0), "Assertion");
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EXPECT_DEATH(regGrid2D->setElevation(10, 0, 0), "Assertion");
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EXPECT_DEATH(regGrid2D->setElevation(0, -1, 0), "Assertion");
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EXPECT_DEATH(regGrid2D->setElevation(0, 20, 0), "Assertion");
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DoubleArray values;
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values.resize(20 * 20);
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EXPECT_DEATH(regGrid2D->setElevations(values), "Assertion");
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EXPECT_DEATH(regGrid2D->setElevations(values.ptr(), 20*20), "Assertion");
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}
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#endif
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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TEST(RegGrid2D, PointEvaluation)
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{
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ref<RegGrid2D> regGrid2D = new RegGrid2D;
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EXPECT_TRUE(regGrid2D.notNull());
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regGrid2D->allocateGrid(2, 2);
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regGrid2D->setSpacing(Vec2d(1, 1));
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// y
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// /\ (line cannot end with \)
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// |
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// 4(0,1) -2(1,1)
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// |--------|
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// | |
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// | |
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// |--------|---> x
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// 2(0,0) 5(1,0)
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regGrid2D->setElevation(0, 0, 2);
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regGrid2D->setElevation(1, 0, 5);
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regGrid2D->setElevation(0, 1, 4);
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regGrid2D->setElevation(1, 1, -2);
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// Reg grid corners
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{
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Vec2d coord(0, 0);
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double elevationValue = regGrid2D->pointElevation(coord);
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EXPECT_EQ(2, elevationValue);
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}
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{
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Vec2d coord(1, 0);
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double elevationValue = regGrid2D->pointElevation(coord);
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EXPECT_EQ(5, elevationValue);
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}
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{
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Vec2d coord(0, 1);
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double elevationValue = regGrid2D->pointElevation(coord);
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EXPECT_EQ(4, elevationValue);
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}
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{
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Vec2d coord(1, 1);
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double elevationValue = regGrid2D->pointElevation(coord);
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EXPECT_EQ(-2, elevationValue);
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}
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// Undefined on edge of grid, not possible to use bilinear interpolation
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{
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Vec2d coord(0.5, 1);
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double elevationValue = regGrid2D->pointElevation(coord);
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EXPECT_EQ(UNDEFINED_DOUBLE, elevationValue);
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}
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double coordOffset = 0.00001;
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double deltaValue = 0.001;
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// Interpolation along sides
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{
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Vec2d coord(0.5, 0 + coordOffset);
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double elevationValue = regGrid2D->pointElevation(coord);
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EXPECT_NEAR(3.5, elevationValue, 0.01);
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}
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{
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Vec2d coord(0.5, 1 - coordOffset);
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double elevationValue = regGrid2D->pointElevation(coord);
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EXPECT_NEAR(1.0, elevationValue, deltaValue);
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}
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{
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Vec2d coord(0 + coordOffset, 0.5);
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double elevationValue = regGrid2D->pointElevation(coord);
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EXPECT_NEAR(3.0, elevationValue, deltaValue);
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}
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{
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Vec2d coord(1 - coordOffset, 0.5);
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double elevationValue = regGrid2D->pointElevation(coord);
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EXPECT_NEAR(1.5, elevationValue, deltaValue);
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}
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// Interpolation in center
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{
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Vec2d coord(0.5, 0.5);
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double elevationValue = regGrid2D->pointElevation(coord);
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EXPECT_EQ(2.25, elevationValue);
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}
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// Interpolation of coordinates outside grid
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{
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Vec2d coord(-0.5, 0.5);
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double elevationValue = regGrid2D->pointElevation(coord);
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EXPECT_EQ(elevationValue, UNDEFINED_DOUBLE);
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}
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{
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Vec2d coord(-0.5, -0.5);
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double elevationValue = regGrid2D->pointElevation(coord);
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EXPECT_EQ(elevationValue, UNDEFINED_DOUBLE);
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}
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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TEST(RegGrid2D, PointEvaluationOffset)
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{
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ref<RegGrid2D> regGrid2D = new RegGrid2D;
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EXPECT_TRUE(regGrid2D.notNull());
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regGrid2D->allocateGrid(2, 2);
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regGrid2D->setSpacing(Vec2d(1, 1));
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regGrid2D->setOffset(Vec2d(1, 1));
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// y
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// /\ (line cannot end with \)
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// |
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// 4(0,1) -2(1,1)
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// |--------|
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// | |
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// | |
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// |--------|---> x
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// 2(0,0) 5(1,0)
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regGrid2D->setElevation(0, 0, 2);
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regGrid2D->setElevation(1, 0, 5);
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regGrid2D->setElevation(0, 1, 4);
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regGrid2D->setElevation(1, 1, -2);
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// Outside reg grid
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{
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Vec2d coord(0, 0);
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double elevationValue = regGrid2D->pointElevation(coord);
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EXPECT_EQ(UNDEFINED_DOUBLE, elevationValue);
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}
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// Lower left corner
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{
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Vec2d coord(1, 1);
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double elevationValue = regGrid2D->pointElevation(coord);
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EXPECT_EQ(2, elevationValue);
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}
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// Center right corner
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{
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Vec2d coord(1.5, 1.5);
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double elevationValue = regGrid2D->pointElevation(coord);
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EXPECT_EQ(2.25, elevationValue);
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}
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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TEST(RegGrid2D, MinMaxElevation)
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{
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ref<RegGrid2D> regGrid2D = new RegGrid2D;
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EXPECT_TRUE(regGrid2D.notNull());
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regGrid2D->allocateGrid(2, 2);
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DoubleArray values;
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values.resize(2 * 2);
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values.set(0, 2);
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values.set(1, 5);
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values.set(2, 4);
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values.set(3, -2);
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regGrid2D->setElevations(values);
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double min, max;
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regGrid2D->minMaxElevation(&min, &max);
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EXPECT_EQ(-2, min);
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EXPECT_EQ(5, max);
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regGrid2D->minMaxElevationInRegion(0, 0, 0, 0, &min, &max);
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EXPECT_EQ(2, min);
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EXPECT_EQ(2, max);
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regGrid2D->minMaxElevationInRegion(0, 0, 1, 0, &min, &max);
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EXPECT_EQ(2, min);
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EXPECT_EQ(5, max);
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regGrid2D->minMaxElevationInRegion(1, 1, 1, 1, &min, &max);
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EXPECT_EQ(-2, min);
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EXPECT_EQ(-2, max);
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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#ifdef CVF_ENABLE_ASSERTS
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TEST(RegGrid2DDeathTest, InvalidParametersMinMaxElevation)
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{
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ref<RegGrid2D> regGrid2D = new RegGrid2D;
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EXPECT_TRUE(regGrid2D.notNull());
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regGrid2D->allocateGrid(10, 20);
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double min, max;
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EXPECT_DEATH(regGrid2D->minMaxElevationInRegion(-1, 0, 0, 0, &min, &max), "Assertion");
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EXPECT_DEATH(regGrid2D->minMaxElevationInRegion(0, -1, 0, 0, &min, &max), "Assertion");
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EXPECT_DEATH(regGrid2D->minMaxElevationInRegion(0, 0, -1, 0, &min, &max), "Assertion");
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EXPECT_DEATH(regGrid2D->minMaxElevationInRegion(0, 0, 0, -1, &min, &max), "Assertion");
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EXPECT_DEATH(regGrid2D->minMaxElevationInRegion(1, 0, 0, 0, &min, &max), "Assertion");
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EXPECT_DEATH(regGrid2D->minMaxElevationInRegion(0, 1, 0, 0, &min, &max), "Assertion");
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}
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#endif
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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TEST(RegGrid2D, MapLineSegmentOnGrid)
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{
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ref<RegGrid2D> regGrid2D = new RegGrid2D;
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EXPECT_TRUE(regGrid2D.notNull());
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regGrid2D->allocateGrid(4, 4);
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regGrid2D->setSpacing(Vec2d(1, 1));
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double delta = 0.001;
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// Test increasing ij
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{
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Vec3dArray intersections;
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Vec2d start(0.5, 0.5);
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Vec2d end(1.5, 2.5);
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regGrid2D->mapLineSegmentOnGrid(start, end, &intersections);
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EXPECT_EQ(5, intersections.size());
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EXPECT_NEAR(0.5, intersections[0].x(), delta);
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EXPECT_NEAR(0.5, intersections[0].y(), delta);
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EXPECT_NEAR(0.75, intersections[1].x(), delta);
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EXPECT_NEAR(1.0 , intersections[1].y(), delta);
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EXPECT_NEAR(1.0, intersections[2].x(), delta);
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EXPECT_NEAR(1.5, intersections[2].y(), delta);
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EXPECT_NEAR(1.25, intersections[3].x(), delta);
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EXPECT_NEAR(2.0 , intersections[3].y(), delta);
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EXPECT_NEAR(1.5, intersections[4].x(), delta);
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EXPECT_NEAR(2.5, intersections[4].y(), delta);
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}
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// Test increasing i, decreasing j
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{
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Vec3dArray intersections;
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Vec2d start(0.5, 2.5);
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Vec2d end(1.5, 0.5);
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regGrid2D->mapLineSegmentOnGrid(start, end, &intersections);
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EXPECT_EQ(5, intersections.size());
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}
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// Test decreasing i, increasing j
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{
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Vec3dArray intersections;
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Vec2d start(1.5, 0.5);
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Vec2d end(0.5, 2.5);
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regGrid2D->mapLineSegmentOnGrid(start, end, &intersections);
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EXPECT_EQ(5, intersections.size());
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}
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// Test decreasing ij
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{
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Vec3dArray intersections;
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Vec2d start(1.5, 2.5);
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Vec2d end(0.5, 0.5);
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regGrid2D->mapLineSegmentOnGrid(start, end, &intersections);
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EXPECT_EQ(5, intersections.size());
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}
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// Intersection at gridpoints
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{
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Vec3dArray intersections;
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Vec2d start(2.5, 2.5);
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Vec2d end(0.5, 0.5);
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regGrid2D->mapLineSegmentOnGrid(start, end, &intersections);
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EXPECT_EQ(4, intersections.size());
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}
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// Intersection at gridpoints, start and end at gridpoints
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{
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Vec3dArray intersections;
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Vec2d start(0, 0);
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Vec2d end(2, 2);
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regGrid2D->mapLineSegmentOnGrid(start, end, &intersections);
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EXPECT_EQ(3, intersections.size());
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}
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// Intersection at gridpoints, start and end at gridpoints
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{
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Vec3dArray intersections;
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Vec2d start(2, 2);
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Vec2d end(0, 0);
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regGrid2D->mapLineSegmentOnGrid(start, end, &intersections);
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EXPECT_EQ(3, intersections.size());
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}
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// Vertical line ascending
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{
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Vec3dArray intersections;
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Vec2d start(1.1, 0.1);
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Vec2d end(1.1, 2.1);
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regGrid2D->mapLineSegmentOnGrid(start, end, &intersections);
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EXPECT_EQ(4, intersections.size());
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}
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// Vertical line descending
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{
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Vec3dArray intersections;
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Vec2d start(1.1, 2.1);
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Vec2d end(1.1, 0.1);
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regGrid2D->mapLineSegmentOnGrid(start, end, &intersections);
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EXPECT_EQ(4, intersections.size());
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}
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// Horizontal line ascending
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{
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Vec3dArray intersections;
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Vec2d start(0.1, 1.1);
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Vec2d end(2.1, 1.1);
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regGrid2D->mapLineSegmentOnGrid(start, end, &intersections);
|
|
EXPECT_EQ(4, intersections.size());
|
|
}
|
|
|
|
// Horizontal line descending
|
|
{
|
|
Vec3dArray intersections;
|
|
|
|
Vec2d start(2.1, 1.1);
|
|
Vec2d end(0.1, 1.1);
|
|
regGrid2D->mapLineSegmentOnGrid(start, end, &intersections);
|
|
EXPECT_EQ(4, intersections.size());
|
|
}
|
|
|
|
// Line starting outside grid
|
|
{
|
|
Vec3dArray intersections;
|
|
|
|
Vec2d start(-1, 1);
|
|
Vec2d end(10, 1);
|
|
regGrid2D->mapLineSegmentOnGrid(start, end, &intersections);
|
|
EXPECT_EQ(4, intersections.size());
|
|
|
|
EXPECT_NEAR(0, intersections[0].x(), delta);
|
|
EXPECT_NEAR(1, intersections[0].y(), delta);
|
|
|
|
EXPECT_NEAR(1, intersections[1].x(), delta);
|
|
EXPECT_NEAR(1, intersections[1].y(), delta);
|
|
|
|
EXPECT_NEAR(2, intersections[2].x(), delta);
|
|
EXPECT_NEAR(1, intersections[2].y(), delta);
|
|
|
|
EXPECT_NEAR(3, intersections[3].x(), delta);
|
|
EXPECT_NEAR(1, intersections[3].y(), delta);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------------------------------------
|
|
///
|
|
//--------------------------------------------------------------------------------------------------
|
|
TEST(RegGrid2D, GridCoordinate)
|
|
{
|
|
ref<RegGrid2D> regGrid2D = new RegGrid2D;
|
|
EXPECT_TRUE(regGrid2D.notNull());
|
|
|
|
regGrid2D->allocateGrid(4, 4);
|
|
|
|
regGrid2D->setSpacing(Vec2d(1, 1));
|
|
{
|
|
Rectd boundingRect = regGrid2D->boundingRectangle();
|
|
EXPECT_EQ(0.0, boundingRect.min().x());
|
|
EXPECT_EQ(0.0, boundingRect.min().y());
|
|
EXPECT_EQ(3.0, boundingRect.max().x());
|
|
EXPECT_EQ(3.0, boundingRect.max().y());
|
|
}
|
|
|
|
regGrid2D->setSpacing(Vec2d(2, 2));
|
|
{
|
|
Rectd boundingRect = regGrid2D->boundingRectangle();
|
|
EXPECT_EQ(0.0, boundingRect.min().x());
|
|
EXPECT_EQ(0.0, boundingRect.min().y());
|
|
EXPECT_EQ(6.0, boundingRect.max().x());
|
|
EXPECT_EQ(6.0, boundingRect.max().y());
|
|
}
|
|
|
|
regGrid2D->setOffset(Vec2d(2, 2));
|
|
regGrid2D->setSpacing(Vec2d(3, 3));
|
|
{
|
|
Rectd boundingRect = regGrid2D->boundingRectangle();
|
|
EXPECT_EQ(2.0, boundingRect.min().x());
|
|
EXPECT_EQ(2.0, boundingRect.min().y());
|
|
EXPECT_EQ(11.0, boundingRect.max().x());
|
|
EXPECT_EQ(11.0, boundingRect.max().y());
|
|
}
|
|
}
|
|
|