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office-gobmx/basegfx/test/B2DHomMatrixTest.cxx
Mike Kaganski 37429f2690 Use M_PI* instead of F_PI* 
Change-Id: Ie2b7a1c74fc516781a17a20157b8217bc41e383d
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/125504
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
2021-11-19 09:59:43 +01:00

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/* -*- 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);
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