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diff --git a/basegfx/test/B2DHomMatrixTest.cxx b/basegfx/test/B2DHomMatrixTest.cxx new file mode 100644 index 000000000..bd6b1f8c8 --- /dev/null +++ b/basegfx/test/B2DHomMatrixTest.cxx @@ -0,0 +1,562 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <cppunit/TestAssert.h> +#include <cppunit/TestFixture.h> +#include <cppunit/extensions/HelperMacros.h> + +#include <basegfx/matrix/b2dhommatrix.hxx> +#include <basegfx/matrix/b2dhommatrixtools.hxx> +#include <basegfx/numeric/ftools.hxx> +#include <basegfx/tuple/b2dtuple.hxx> +#include <basegfx/range/b2drange.hxx> + +namespace basegfx +{ +class b2dhommatrix : public CppUnit::TestFixture +{ +private: + B2DHomMatrix maIdentity; + B2DHomMatrix maScale; + B2DHomMatrix maTranslate; + B2DHomMatrix maShear; + B2DHomMatrix maAffine; + B2DHomMatrix maPerspective; + +public: + // initialise your test code values here. + void setUp() override + { + // setup some test matrices + maIdentity.identity(); // force compact layout + maIdentity.set(0, 0, 1.0); + maIdentity.set(0, 1, 0.0); + maIdentity.set(0, 2, 0.0); + maIdentity.set(1, 0, 0.0); + maIdentity.set(1, 1, 1.0); + maIdentity.set(1, 2, 0.0); + + maScale.identity(); // force compact layout + maScale.set(0, 0, 2.0); + maScale.set(1, 1, 20.0); + + maTranslate.identity(); // force compact layout + maTranslate.set(0, 2, 20.0); + maTranslate.set(1, 2, 2.0); + + maShear.identity(); // force compact layout + maShear.set(0, 1, 3.0); + maShear.set(1, 0, 7.0); + maShear.set(1, 1, 22.0); + + maAffine.identity(); // force compact layout + maAffine.set(0, 0, 1.0); + maAffine.set(0, 1, 2.0); + maAffine.set(0, 2, 3.0); + maAffine.set(1, 0, 4.0); + maAffine.set(1, 1, 5.0); + maAffine.set(1, 2, 6.0); + + maPerspective.set(0, 0, 1.0); + maPerspective.set(0, 1, 2.0); + maPerspective.set(0, 2, 3.0); + maPerspective.set(1, 0, 4.0); + maPerspective.set(1, 1, 5.0); + maPerspective.set(1, 2, 6.0); + maPerspective.set(2, 0, 7.0); + maPerspective.set(2, 1, 8.0); + maPerspective.set(2, 2, 9.0); + } + + void equal() + { + B2DHomMatrix aIdentity; + B2DHomMatrix aScale; + B2DHomMatrix aTranslate; + B2DHomMatrix aShear; + B2DHomMatrix aAffine; + B2DHomMatrix aPerspective; + + // setup some test matrices + aIdentity.identity(); // force compact layout + aIdentity.set(0, 0, 1.0); + aIdentity.set(0, 1, 0.0); + aIdentity.set(0, 2, 0.0); + aIdentity.set(1, 0, 0.0); + aIdentity.set(1, 1, 1.0); + aIdentity.set(1, 2, 0.0); + + aScale.identity(); // force compact layout + aScale.set(0, 0, 2.0); + aScale.set(1, 1, 20.0); + + aTranslate.identity(); // force compact layout + aTranslate.set(0, 2, 20.0); + aTranslate.set(1, 2, 2.0); + + aShear.identity(); // force compact layout + aShear.set(0, 1, 3.0); + aShear.set(1, 0, 7.0); + aShear.set(1, 1, 22.0); + + aAffine.identity(); // force compact layout + aAffine.set(0, 0, 1.0); + aAffine.set(0, 1, 2.0); + aAffine.set(0, 2, 3.0); + aAffine.set(1, 0, 4.0); + aAffine.set(1, 1, 5.0); + aAffine.set(1, 2, 6.0); + + aPerspective.set(0, 0, 1.0); + aPerspective.set(0, 1, 2.0); + aPerspective.set(0, 2, 3.0); + aPerspective.set(1, 0, 4.0); + aPerspective.set(1, 1, 5.0); + aPerspective.set(1, 2, 6.0); + aPerspective.set(2, 0, 7.0); + aPerspective.set(2, 1, 8.0); + aPerspective.set(2, 2, 9.0); + + CPPUNIT_ASSERT_MESSAGE("operator==: identity matrix", aIdentity.operator==(maIdentity)); + CPPUNIT_ASSERT_MESSAGE("operator==: scale matrix", aScale.operator==(maScale)); + CPPUNIT_ASSERT_MESSAGE("operator==: translate matrix", aTranslate.operator==(maTranslate)); + CPPUNIT_ASSERT_MESSAGE("operator==: shear matrix", aShear.operator==(maShear)); + CPPUNIT_ASSERT_MESSAGE("operator==: affine matrix", aAffine.operator==(maAffine)); + CPPUNIT_ASSERT_MESSAGE("operator==: perspective matrix", + aPerspective.operator==(maPerspective)); + } + + void identity() + { + B2DHomMatrix ident; + + CPPUNIT_ASSERT_EQUAL_MESSAGE("identity", maIdentity, ident); + } + + void scale() + { + B2DHomMatrix mat; + mat.scale(2.0, 20.0); + CPPUNIT_ASSERT_EQUAL_MESSAGE("scale", maScale, mat); + } + + void rotate() + { + B2DHomMatrix mat; + mat.rotate(M_PI_2); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate pi/2 yields exact matrix", 0.0, mat.get(0, 0), + 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate pi/2 yields exact matrix", -1.0, mat.get(0, 1), + 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate pi/2 yields exact matrix", 0.0, mat.get(0, 2), + 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate pi/2 yields exact matrix", 1.0, mat.get(1, 0), + 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate pi/2 yields exact matrix", 0.0, mat.get(1, 1), + 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate pi/2 yields exact matrix", 0.0, mat.get(1, 2), + 1E-12); + mat.rotate(M_PI_2); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate pi yields exact matrix", -1.0, mat.get(0, 0), + 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate pi yields exact matrix", 0.0, mat.get(0, 1), + 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate pi yields exact matrix", 0.0, mat.get(0, 2), + 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate pi yields exact matrix", 0.0, mat.get(1, 0), + 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate pi yields exact matrix", -1.0, mat.get(1, 1), + 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate pi yields exact matrix", 0.0, mat.get(1, 2), + 1E-12); + mat.rotate(M_PI_2); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate 3/2 pi yields exact matrix", 0.0, + mat.get(0, 0), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate 3/2 pi yields exact matrix", 1.0, + mat.get(0, 1), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate 3/2 pi yields exact matrix", 0.0, + mat.get(0, 2), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate 3/2 pi yields exact matrix", -1.0, + mat.get(1, 0), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate 3/2 pi yields exact matrix", 0.0, + mat.get(1, 1), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate 3/2 pi yields exact matrix", 0.0, + mat.get(1, 2), 1E-12); + mat.rotate(M_PI_2); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate 2 pi yields exact matrix", 1.0, mat.get(0, 0), + 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate 2 pi yields exact matrix", 0.0, mat.get(0, 1), + 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate 2 pi yields exact matrix", 0.0, mat.get(0, 2), + 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate 2 pi yields exact matrix", 0.0, mat.get(1, 0), + 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate 2 pi yields exact matrix", 1.0, mat.get(1, 1), + 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("rotate 2 pi yields exact matrix", 0.0, mat.get(1, 2), + 1E-12); + } + + void translate() + { + B2DHomMatrix mat; + mat.translate(20.0, 2.0); + CPPUNIT_ASSERT_EQUAL_MESSAGE("translate", maTranslate, mat); + } + + void shear() + { + B2DHomMatrix mat; + mat.shearX(3.0); + mat.shearY(7.0); + CPPUNIT_ASSERT_EQUAL_MESSAGE("translate", maShear, mat); + } + + void multiply() + { + B2DHomMatrix affineAffineProd; + + affineAffineProd.set(0, 0, 9); + affineAffineProd.set(0, 1, 12); + affineAffineProd.set(0, 2, 18); + affineAffineProd.set(1, 0, 24); + affineAffineProd.set(1, 1, 33); + affineAffineProd.set(1, 2, 48); + + B2DHomMatrix affinePerspectiveProd; + + affinePerspectiveProd.set(0, 0, 30); + affinePerspectiveProd.set(0, 1, 36); + affinePerspectiveProd.set(0, 2, 42); + affinePerspectiveProd.set(1, 0, 66); + affinePerspectiveProd.set(1, 1, 81); + affinePerspectiveProd.set(1, 2, 96); + affinePerspectiveProd.set(2, 0, 7); + affinePerspectiveProd.set(2, 1, 8); + affinePerspectiveProd.set(2, 2, 9); + + B2DHomMatrix perspectiveAffineProd; + + perspectiveAffineProd.set(0, 0, 9); + perspectiveAffineProd.set(0, 1, 12); + perspectiveAffineProd.set(0, 2, 18); + perspectiveAffineProd.set(1, 0, 24); + perspectiveAffineProd.set(1, 1, 33); + perspectiveAffineProd.set(1, 2, 48); + perspectiveAffineProd.set(2, 0, 39); + perspectiveAffineProd.set(2, 1, 54); + perspectiveAffineProd.set(2, 2, 78); + + B2DHomMatrix perspectivePerspectiveProd; + + perspectivePerspectiveProd.set(0, 0, 30); + perspectivePerspectiveProd.set(0, 1, 36); + perspectivePerspectiveProd.set(0, 2, 42); + perspectivePerspectiveProd.set(1, 0, 66); + perspectivePerspectiveProd.set(1, 1, 81); + perspectivePerspectiveProd.set(1, 2, 96); + perspectivePerspectiveProd.set(2, 0, 102); + perspectivePerspectiveProd.set(2, 1, 126); + perspectivePerspectiveProd.set(2, 2, 150); + + B2DHomMatrix temp; + + temp = maAffine; + temp *= maAffine; + CPPUNIT_ASSERT_EQUAL_MESSAGE("multiply: both compact", affineAffineProd, temp); + + temp = maPerspective; + temp *= maAffine; + CPPUNIT_ASSERT_EQUAL_MESSAGE("multiply: first compact", affinePerspectiveProd, temp); + + temp = maAffine; + temp *= maPerspective; + CPPUNIT_ASSERT_EQUAL_MESSAGE("multiply: second compact", perspectiveAffineProd, temp); + + temp = maPerspective; + temp *= maPerspective; + CPPUNIT_ASSERT_EQUAL_MESSAGE("multiply: none compact", perspectivePerspectiveProd, temp); + } + + void impFillMatrix(B2DHomMatrix& rSource, double fScaleX, double fScaleY, double fShearX, + double fRotate) const + { + // fill rSource with a linear combination of scale, shear and rotate + rSource.identity(); + rSource.scale(fScaleX, fScaleY); + rSource.shearX(fShearX); + rSource.rotate(fRotate); + } + + bool impDecomposeComposeTest(double fScaleX, double fScaleY, double fShearX, + double fRotate) const + { + // linear combine matrix with given values + B2DHomMatrix aSource; + impFillMatrix(aSource, fScaleX, fScaleY, fShearX, fRotate); + + // decompose that matrix + B2DTuple aDScale; + B2DTuple aDTrans; + double fDRot; + double fDShX; + bool bWorked = aSource.decompose(aDScale, aDTrans, fDRot, fDShX); + + // linear combine another matrix with decomposition results + B2DHomMatrix aRecombined; + impFillMatrix(aRecombined, aDScale.getX(), aDScale.getY(), fDShX, fDRot); + + // if decomposition worked, matrices need to be the same + return bWorked && aSource == aRecombined; + } + + void decompose() + { + // test matrix decompositions. Each matrix decomposed and rebuilt + // using the decompose result should be the same as before. Test + // with all ranges of values. Translations are not tested since these + // are just the two rightmost values and uncritical + static const double fSX(10.0); + static const double fSY(12.0); + static const double fR(M_PI_4); + static const double fS(deg2rad(15.0)); + + // check all possible scaling combinations + CPPUNIT_ASSERT_MESSAGE("decompose: error test A1", + impDecomposeComposeTest(fSX, fSY, 0.0, 0.0)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test A2", + impDecomposeComposeTest(-fSX, fSY, 0.0, 0.0)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test A3", + impDecomposeComposeTest(fSX, -fSY, 0.0, 0.0)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test A4", + impDecomposeComposeTest(-fSX, -fSY, 0.0, 0.0)); + + // check all possible scaling combinations with positive rotation + CPPUNIT_ASSERT_MESSAGE("decompose: error test B1", + impDecomposeComposeTest(fSX, fSY, 0.0, fR)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test B2", + impDecomposeComposeTest(-fSX, fSY, 0.0, fR)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test B3", + impDecomposeComposeTest(fSX, -fSY, 0.0, fR)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test B4", + impDecomposeComposeTest(-fSX, -fSY, 0.0, fR)); + + // check all possible scaling combinations with negative rotation + CPPUNIT_ASSERT_MESSAGE("decompose: error test C1", + impDecomposeComposeTest(fSX, fSY, 0.0, -fR)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test C2", + impDecomposeComposeTest(-fSX, fSY, 0.0, -fR)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test C3", + impDecomposeComposeTest(fSX, -fSY, 0.0, -fR)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test C4", + impDecomposeComposeTest(-fSX, -fSY, 0.0, -fR)); + + // check all possible scaling combinations with positive shear + CPPUNIT_ASSERT_MESSAGE("decompose: error test D1", + impDecomposeComposeTest(fSX, fSY, tan(fS), 0.0)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test D2", + impDecomposeComposeTest(-fSX, fSY, tan(fS), 0.0)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test D3", + impDecomposeComposeTest(fSX, -fSY, tan(fS), 0.0)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test D4", + impDecomposeComposeTest(-fSX, -fSY, tan(fS), 0.0)); + + // check all possible scaling combinations with negative shear + CPPUNIT_ASSERT_MESSAGE("decompose: error test E1", + impDecomposeComposeTest(fSX, fSY, tan(-fS), 0.0)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test E2", + impDecomposeComposeTest(-fSX, fSY, tan(-fS), 0.0)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test E3", + impDecomposeComposeTest(fSX, -fSY, tan(-fS), 0.0)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test E4", + impDecomposeComposeTest(-fSX, -fSY, tan(-fS), 0.0)); + + // check all possible scaling combinations with positive rotate and positive shear + CPPUNIT_ASSERT_MESSAGE("decompose: error test F1", + impDecomposeComposeTest(fSX, fSY, tan(fS), fR)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test F2", + impDecomposeComposeTest(-fSX, fSY, tan(fS), fR)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test F3", + impDecomposeComposeTest(fSX, -fSY, tan(fS), fR)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test F4", + impDecomposeComposeTest(-fSX, -fSY, tan(fS), fR)); + + // check all possible scaling combinations with negative rotate and positive shear + CPPUNIT_ASSERT_MESSAGE("decompose: error test G1", + impDecomposeComposeTest(fSX, fSY, tan(fS), -fR)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test G2", + impDecomposeComposeTest(-fSX, fSY, tan(fS), -fR)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test G3", + impDecomposeComposeTest(fSX, -fSY, tan(fS), -fR)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test G4", + impDecomposeComposeTest(-fSX, -fSY, tan(fS), -fR)); + + // check all possible scaling combinations with positive rotate and negative shear + CPPUNIT_ASSERT_MESSAGE("decompose: error test H1", + impDecomposeComposeTest(fSX, fSY, tan(-fS), fR)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test H2", + impDecomposeComposeTest(-fSX, fSY, tan(-fS), fR)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test H3", + impDecomposeComposeTest(fSX, -fSY, tan(-fS), fR)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test H4", + impDecomposeComposeTest(-fSX, -fSY, tan(-fS), fR)); + + // check all possible scaling combinations with negative rotate and negative shear + CPPUNIT_ASSERT_MESSAGE("decompose: error test I1", + impDecomposeComposeTest(fSX, fSY, tan(-fS), -fR)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test I2", + impDecomposeComposeTest(-fSX, fSY, tan(-fS), -fR)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test I3", + impDecomposeComposeTest(fSX, -fSY, tan(-fS), -fR)); + CPPUNIT_ASSERT_MESSAGE("decompose: error test I4", + impDecomposeComposeTest(-fSX, -fSY, tan(-fS), -fR)); + + // cover special case of 180 degree rotation + B2DHomMatrix aTest + = utils::createScaleShearXRotateTranslateB2DHomMatrix(6425, 3938, 0, M_PI, 10482, 4921); + // decompose that matrix + B2DTuple aDScale; + B2DTuple aDTrans; + double fDRot; + double fDShX; + aTest.decompose(aDScale, aDTrans, fDRot, fDShX); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("decompose: error test J1", 6425.0, aDScale.getX(), + 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("decompose: error test J1", 3938.0, aDScale.getY(), + 1E-12); + CPPUNIT_ASSERT_EQUAL_MESSAGE("decompose: error test J1", 10482.0, aDTrans.getX()); + CPPUNIT_ASSERT_EQUAL_MESSAGE("decompose: error test J1", 4921.0, aDTrans.getY()); + CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE("decompose: error test J1", M_PI, fDRot, 1E-12); + } + + void testCreate_abcdef() + { + B2DHomMatrix aB2DMatrix(00, 01, 02, 10, 11, 12); + + CPPUNIT_ASSERT_DOUBLES_EQUAL(00, aB2DMatrix.a(), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(10, aB2DMatrix.b(), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(01, aB2DMatrix.c(), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(11, aB2DMatrix.d(), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(02, aB2DMatrix.e(), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(12, aB2DMatrix.f(), 1E-12); + + CPPUNIT_ASSERT_DOUBLES_EQUAL(aB2DMatrix.get(0, 0), aB2DMatrix.a(), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(aB2DMatrix.get(1, 0), aB2DMatrix.b(), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(aB2DMatrix.get(0, 1), aB2DMatrix.c(), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(aB2DMatrix.get(1, 1), aB2DMatrix.d(), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(aB2DMatrix.get(0, 2), aB2DMatrix.e(), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(aB2DMatrix.get(1, 2), aB2DMatrix.f(), 1E-12); + } + + void testMultiplyWithAnotherMatrix() + { + B2DHomMatrix aB2DMatrix(00, 01, 02, 10, 11, 12); + B2DHomMatrix aNewB2DMatrix = B2DHomMatrix::abcdef(1, 2, 3, 4, 5, 6); + + aB2DMatrix *= aNewB2DMatrix; + + CPPUNIT_ASSERT_DOUBLES_EQUAL(30, aB2DMatrix.get(0, 0), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(40, aB2DMatrix.get(1, 0), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(34, aB2DMatrix.get(0, 1), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(46, aB2DMatrix.get(1, 1), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(43, aB2DMatrix.get(0, 2), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(58, aB2DMatrix.get(1, 2), 1E-12); + } + + void testTransformPoint() + { + B2DHomMatrix aNewB2DMatrix = B2DHomMatrix::abcdef(1, 2, 3, 4, 5, 6); + + B2DPoint aPoint(1, 2); + aPoint *= aNewB2DMatrix; + + CPPUNIT_ASSERT_DOUBLES_EQUAL(12, aPoint.getX(), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(16, aPoint.getY(), 1E-12); + } + + void testTransformRange() + { + B2DHomMatrix aNewB2DMatrix = B2DHomMatrix::abcdef(1, 2, 3, 4, 5, 6); + + B2DRange aRange(2, 1, 4, 3); + aRange *= aNewB2DMatrix; + + CPPUNIT_ASSERT_DOUBLES_EQUAL(10, aRange.getMinX(), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(18, aRange.getMaxX(), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(14, aRange.getMinY(), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(26, aRange.getMaxY(), 1E-12); + } + + void testCoordinateSystemConversion() + { + // Use case when we convert + + B2DRange aWindow(50, 50, 150, 150); + + B2DRange aSubPage(0, 0, 2000, 2000); + + B2DHomMatrix aB2DMatrix; + aB2DMatrix.scale(aWindow.getWidth() / aSubPage.getWidth(), + aWindow.getHeight() / aSubPage.getHeight()); + aB2DMatrix.translate(aWindow.getMinX(), aWindow.getMinY()); + + B2DPoint aPoint1(0, 0); + aPoint1 *= aB2DMatrix; + + CPPUNIT_ASSERT_DOUBLES_EQUAL(50, aPoint1.getX(), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(50, aPoint1.getY(), 1E-12); + + B2DPoint aPoint2(1000, 1000); + aPoint2 *= aB2DMatrix; + CPPUNIT_ASSERT_DOUBLES_EQUAL(100, aPoint2.getX(), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(100, aPoint2.getY(), 1E-12); + + B2DPoint aPoint3(2000, 2000); + aPoint3 *= aB2DMatrix; + CPPUNIT_ASSERT_DOUBLES_EQUAL(150, aPoint3.getX(), 1E-12); + CPPUNIT_ASSERT_DOUBLES_EQUAL(150, aPoint3.getY(), 1E-12); + } + + // Change the following lines only, if you add, remove or rename + // member functions of the current class, + // because these macros are need by auto register mechanism. + + CPPUNIT_TEST_SUITE(b2dhommatrix); + CPPUNIT_TEST(equal); + CPPUNIT_TEST(identity); + CPPUNIT_TEST(scale); + CPPUNIT_TEST(translate); + CPPUNIT_TEST(rotate); + CPPUNIT_TEST(shear); + CPPUNIT_TEST(multiply); + CPPUNIT_TEST(decompose); + CPPUNIT_TEST(testCreate_abcdef); + CPPUNIT_TEST(testMultiplyWithAnotherMatrix); + CPPUNIT_TEST(testTransformPoint); + CPPUNIT_TEST(testTransformRange); + CPPUNIT_TEST(testCoordinateSystemConversion); + + CPPUNIT_TEST_SUITE_END(); + +}; // class b2dhommatrix +} + +CPPUNIT_TEST_SUITE_REGISTRATION(basegfx::b2dhommatrix); + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |