xref: /AOO41X/main/basegfx/source/point/b2ipoint.cxx (revision 09dbbe930366fe6f99ae3b8ae1cf8690b638dbda)
1 /**************************************************************
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one
4  * or more contributor license agreements.  See the NOTICE file
5  * distributed with this work for additional information
6  * regarding copyright ownership.  The ASF licenses this file
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
10  *
11  *   http://www.apache.org/licenses/LICENSE-2.0
12  *
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.
19  *
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