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119 lines
3.9 KiB
C++
119 lines
3.9 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 "cvfMatrixState.h"
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#include "cvfCamera.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(MatrixStateTest, Constructor)
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{
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MatrixState ms(Vec2i::ZERO, Vec2ui::ZERO, Mat4d::IDENTITY, Mat4d::IDENTITY);
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EXPECT_EQ(1, ms.versionTick());
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// Might get into trouble here due to internal double to float conversion
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Mat4f pm = ms.projectionMatrix();
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EXPECT_TRUE(pm.isIdentity());
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Mat4f vm = ms.viewMatrix();
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EXPECT_TRUE(vm.isIdentity());
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Mat4f mm = ms.modelMatrix();
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EXPECT_TRUE(mm.isIdentity());
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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TEST(MatrixStateTest, ModelViewMatrix)
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{
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const Vec3d eye(0, -2, 0);
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const Vec3d vrp(0, 0, 0);
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const Vec3d up(0, 0, 1);
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Camera cam;
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cam.setFromLookAt(eye, vrp, up);
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MatrixState ms(Vec2i::ZERO, Vec2ui::ZERO, Mat4d::IDENTITY, cam.viewMatrix());
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{
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Mat4f mvm = ms.modelViewMatrix();
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Mat4f mvmi = ms.modelViewMatrixInverse();
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const Vec3f wc0(0, 0, 0);
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Vec3f ec = wc0.getTransformedPoint(mvm);
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EXPECT_FLOAT_EQ(0, ec.x());
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EXPECT_FLOAT_EQ(0, ec.y());
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EXPECT_FLOAT_EQ(-2, ec.z());
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Vec3f wc = ec.getTransformedPoint(mvmi);
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EXPECT_FLOAT_EQ(0, wc.x());
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EXPECT_FLOAT_EQ(0, wc.y());
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EXPECT_FLOAT_EQ(0, wc.z());
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}
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Mat4d transform = Mat4d::fromTranslation(Vec3d(2, 2, 0));
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ms.setModelMatrix(transform);
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{
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Mat4f mvm = ms.modelViewMatrix();
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Mat4f mvmi = ms.modelViewMatrixInverse();
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const Vec3f wc0(0, 0, 0);
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Vec3f ec = wc0.getTransformedPoint(mvm);
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EXPECT_FLOAT_EQ(2, ec.x());
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EXPECT_FLOAT_EQ(0, ec.y());
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EXPECT_FLOAT_EQ(-4, ec.z());
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Vec3f wc = ec.getTransformedPoint(mvmi);
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EXPECT_FLOAT_EQ(0, wc.x());
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EXPECT_FLOAT_EQ(0, wc.y());
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EXPECT_FLOAT_EQ(0, wc.z());
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}
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}
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