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Add new test of affine transformation matrix

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Add test of concatenating two wxAffineMatrix2D.
This commit is contained in:
Artur Wieczorek 2016-09-18 23:10:26 +02:00
parent fb9cbc0879
commit c916845aaa
1 changed files with 23 additions and 0 deletions
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23
tests/graphics/affinematrix.cpp
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@ -38,9 +38,11 @@ public:
private:
CPPUNIT_TEST_SUITE( AffineTransformTestCase );
CPPUNIT_TEST( InvertMatrix );
CPPUNIT_TEST( Concat );
CPPUNIT_TEST_SUITE_END();
void InvertMatrix();
void Concat();
wxDECLARE_NO_COPY_CLASS(AffineTransformTestCase);
};
@ -74,6 +76,27 @@ void AffineTransformTestCase::InvertMatrix()
CPPUNIT_ASSERT( matrix2.IsIdentity() );
}
void AffineTransformTestCase::Concat()
{
wxAffineMatrix2D m1;
m1.Set(wxMatrix2D(0.9, 0.4, -0.4, 0.9), wxPoint2DDouble(0.0, 0.0));
wxAffineMatrix2D m2;
m2.Set(wxMatrix2D(1.0, 0.0, 0.0, 1.0), wxPoint2DDouble(3.0, 5.0));
m1.Concat(m2);
wxMatrix2D m;
wxPoint2DDouble p;
m1.Get(&m, &p);
const double delta = 0.01;
CPPUNIT_ASSERT_DOUBLES_EQUAL( 0.9, m.m_11, delta );
CPPUNIT_ASSERT_DOUBLES_EQUAL( 0.4, m.m_12, delta );
CPPUNIT_ASSERT_DOUBLES_EQUAL( -0.4, m.m_21, delta );
CPPUNIT_ASSERT_DOUBLES_EQUAL( 0.9, m.m_22, delta );
CPPUNIT_ASSERT_DOUBLES_EQUAL( 0.7, p.m_x, delta );
CPPUNIT_ASSERT_DOUBLES_EQUAL( 5.7, p.m_y, delta );
}
#if wxUSE_DC_TRANSFORM_MATRIX
// -------------------------------
// Transform matrix test classes