xref: /aoo41x/main/basegfx/source/point/b2dpoint.cxx (revision cdf0e10c)
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27 
28 // MARKER(update_precomp.py): autogen include statement, do not remove
29 #include "precompiled_basegfx.hxx"
30 #include <basegfx/point/b2dpoint.hxx>
31 #include <basegfx/matrix/b2dhommatrix.hxx>
32 #include <basegfx/numeric/ftools.hxx>
33 
34 //////////////////////////////////////////////////////////////////////////////
35 
36 namespace basegfx
37 {
38 	B2DPoint& B2DPoint::operator=( const ::basegfx::B2DTuple& rPoint )
39 	{
40 		mfX = rPoint.getX();
41 		mfY = rPoint.getY();
42 		return *this;
43 	}
44 
45 	B2DPoint& B2DPoint::operator*=( const ::basegfx::B2DHomMatrix& rMat )
46 	{
47 		double fTempX(
48 			rMat.get(0, 0) * mfX +
49 			rMat.get(0, 1) * mfY +
50 			rMat.get(0, 2));
51 		double fTempY(
52 			rMat.get(1, 0) * mfX +
53 			rMat.get(1, 1) * mfY +
54 			rMat.get(1, 2));
55 
56 		if(!rMat.isLastLineDefault())
57 		{
58 			const double fOne(1.0);
59 			const double fTempM(
60 				rMat.get(2, 0) * mfX +
61 				rMat.get(2, 1) * mfY +
62 				rMat.get(2, 2));
63 
64 			if(!fTools::equalZero(fTempM) && !fTools::equal(fOne, fTempM))
65 			{
66 				fTempX /= fTempM;
67 				fTempY /= fTempM;
68 			}
69 		}
70 
71 		mfX = fTempX;
72 		mfY = fTempY;
73 
74 		return *this;
75 	}
76 
77 	B2DPoint operator*( const ::basegfx::B2DHomMatrix& rMat, const B2DPoint& rPoint )
78 	{
79 		B2DPoint aRes( rPoint );
80 		return aRes *= rMat;
81 	}
82 } // end of namespace basegfx
83 
84 //////////////////////////////////////////////////////////////////////////////
85 // eof
86