xref: /AOO41X/main/basegfx/source/point/b2dpoint.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/b2dpoint.hxx>
27 #include <basegfx/matrix/b2dhommatrix.hxx>
28 #include <basegfx/numeric/ftools.hxx>
29 
30 //////////////////////////////////////////////////////////////////////////////
31 
32 namespace basegfx
33 {
operator =(const::basegfx::B2DTuple & rPoint)34     B2DPoint& B2DPoint::operator=( const ::basegfx::B2DTuple& rPoint )
35     {
36         mfX = rPoint.getX();
37         mfY = rPoint.getY();
38         return *this;
39     }
40 
operator *=(const::basegfx::B2DHomMatrix & rMat)41     B2DPoint& B2DPoint::operator*=( const ::basegfx::B2DHomMatrix& rMat )
42     {
43         double fTempX(
44             rMat.get(0, 0) * mfX +
45             rMat.get(0, 1) * mfY +
46             rMat.get(0, 2));
47         double fTempY(
48             rMat.get(1, 0) * mfX +
49             rMat.get(1, 1) * mfY +
50             rMat.get(1, 2));
51 
52         if(!rMat.isLastLineDefault())
53         {
54             const double fOne(1.0);
55             const double fTempM(
56                 rMat.get(2, 0) * mfX +
57                 rMat.get(2, 1) * mfY +
58                 rMat.get(2, 2));
59 
60             if(!fTools::equalZero(fTempM) && !fTools::equal(fOne, fTempM))
61             {
62                 fTempX /= fTempM;
63                 fTempY /= fTempM;
64             }
65         }
66 
67         mfX = fTempX;
68         mfY = fTempY;
69 
70         return *this;
71     }
72 
operator *(const::basegfx::B2DHomMatrix & rMat,const B2DPoint & rPoint)73     B2DPoint operator*( const ::basegfx::B2DHomMatrix& rMat, const B2DPoint& rPoint )
74     {
75         B2DPoint aRes( rPoint );
76         return aRes *= rMat;
77     }
78 } // end of namespace basegfx
79 
80 //////////////////////////////////////////////////////////////////////////////
81 // eof
82