xref: /trunk/main/basegfx/source/point/b2ipoint.cxx (revision 09dbbe93)
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2  *
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4  * or more contributor license agreements.  See the NOTICE file
5  * distributed with this work for additional information
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7  * to you under the Apache License, Version 2.0 (the
8  * "License"); you may not use this file except in compliance
9  * with the License.  You may obtain a copy of the License at
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11  *   http://www.apache.org/licenses/LICENSE-2.0
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13  * Unless required by applicable law or agreed to in writing,
14  * software distributed under the License is distributed on an
15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
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20  *************************************************************/
21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_basegfx.hxx"
26 #include <basegfx/point/b2ipoint.hxx>
27 #include <basegfx/matrix/b2dhommatrix.hxx>
28 #include <basegfx/numeric/ftools.hxx>
29 
30 namespace basegfx
31 {
operator =(const::basegfx::B2ITuple & rPoint)32 	B2IPoint& B2IPoint::operator=( const ::basegfx::B2ITuple& rPoint )
33 	{
34 		mnX = rPoint.getX();
35 		mnY = rPoint.getY();
36 		return *this;
37 	}
38 
operator *=(const::basegfx::B2DHomMatrix & rMat)39 	B2IPoint& B2IPoint::operator*=( const ::basegfx::B2DHomMatrix& rMat )
40 	{
41 		double fTempX(
42 			rMat.get(0, 0) * mnX +
43 			rMat.get(0, 1) * mnY +
44 			rMat.get(0, 2));
45 		double fTempY(
46 			rMat.get(1, 0) * mnX +
47 			rMat.get(1, 1) * mnY +
48 			rMat.get(1, 2));
49 
50 		if(!rMat.isLastLineDefault())
51 		{
52 			const double fOne(1.0);
53 			const double fTempM(
54 				rMat.get(2, 0) * mnX +
55 				rMat.get(2, 1) * mnY +
56 				rMat.get(2, 2));
57 
58 			if(!fTools::equalZero(fTempM) && !fTools::equal(fOne, fTempM))
59 			{
60 				fTempX /= fTempM;
61 				fTempY /= fTempM;
62 			}
63 		}
64 
65 		mnX = fround(fTempX);
66 		mnY = fround(fTempY);
67 
68 		return *this;
69 	}
70 } // end of namespace basegfx
71 
72 // eof
73