1 // Copyright (c) 1995-1999 Matra Datavision
2 // Copyright (c) 1999-2012 OPEN CASCADE SAS
4 // The content of this file is subject to the Open CASCADE Technology Public
5 // License Version 6.5 (the "License"). You may not use the content of this file
6 // except in compliance with the License. Please obtain a copy of the License
7 // at http://www.opencascade.org and read it completely before using this file.
9 // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
10 // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
12 // The Original Code and all software distributed under the License is
13 // distributed on an "AS IS" basis, without warranty of any kind, and the
14 // Initial Developer hereby disclaims all such warranties, including without
15 // limitation, any warranties of merchantability, fitness for a particular
16 // purpose or non-infringement. Please see the License for the specific terms
17 // and conditions governing the rights and limitations under the License.
19 #include <Image_PixelInterpolation.ixx>
21 Image_PixelInterpolation::Image_PixelInterpolation() {}
23 Standard_Boolean Image_PixelInterpolation::DoInterpolate(
24 const Handle(Image_Image)& aImage,
25 const Standard_Real X, const Standard_Real Y,
26 const Standard_Integer LowX,
27 const Standard_Integer LowY,
28 const Standard_Integer UpX,
29 const Standard_Integer UpY,
30 Aspect_Pixel& aPixel ) const
32 { Standard_Integer NX ;
35 if ( X < 0. ) NX = Standard_Integer(X-0.5) ;
36 else NX = Standard_Integer(X+0.5) ;
38 if ( Y < 0. ) NY = Standard_Integer(Y-0.5) ;
39 else NY = Standard_Integer(Y+0.5) ;
41 if ( NX < LowX || NX > UpX ||
42 NY < LowY || NY > UpY ) {
43 return Standard_False ;
46 aImage->Pixel( NX, NY, aPixel );
47 return Standard_True ;
51 Standard_Boolean Image_PixelInterpolation::Interpolate(
52 const Handle(Image_Image)& aImage,
53 const Standard_Real FX, const Standard_Real FY,
54 const Standard_Integer LowX,
55 const Standard_Integer LowY,
56 const Standard_Integer UpX,
57 const Standard_Integer UpY,
58 Aspect_Pixel& aPixel ) const
60 { return DoInterpolate( aImage, FX, FY, LowX, LowY, UpX, UpY, aPixel ) ; }
62 Standard_Boolean Image_PixelInterpolation::Interpolate(
63 const Handle(Image_DColorImage)& aImage,
64 const Standard_Real FX, const Standard_Real FY,
65 const Standard_Integer LowX,
66 const Standard_Integer LowY,
67 const Standard_Integer UpX,
68 const Standard_Integer UpY,
69 Aspect_ColorPixel& aPixel ) const
71 { return DoInterpolate( aImage, FX, FY, LowX, LowY, UpX, UpY, aPixel ) ; }
73 Standard_Boolean Image_PixelInterpolation::Interpolate(
74 const Handle(Image_DIndexedImage)& aImage,
75 const Standard_Real FX, const Standard_Real FY,
76 const Standard_Integer LowX,
77 const Standard_Integer LowY,
78 const Standard_Integer UpX,
79 const Standard_Integer UpY,
80 Aspect_IndexPixel& aPixel ) const
82 { return DoInterpolate( aImage, FX, FY, LowX, LowY, UpX, UpY, aPixel ) ; }