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ID: 13803, Rotate Bitmap Any Angle

by Earl F. Glynn Email: efg2@efg2.com


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For Delphi, Version 3.0  to 4.0 1821 downloads
Copyright: Commercial use requires permission


Size: 200,534 bytes
Updated on Mon, 16 Aug 1999 00:00:00 GMT
Originally uploaded on Mon, 16 Aug 1999 00:00:00 GMT
SHA1 Hash: 05F74C5BBA2DD1318539B680E2F1FABB422A0987
MD5 Hash: B70D7EDED1CF1F952DA8A3A5EB402BEB

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Description
RotateScanline shows how to rotate a bitmap any angle using the TBitmap Scanline property introduced in Delphi 3.

See Item 13804 for bitmap flipping, reversing and rotation of multiples of 90 degrees.

See Item 13805 for slow rotations of any angle using the TCanvas Pixels property.

For additional details, including a diagram and explanation of the mathematics, see the "Lab Report" at
http://www.efg2.com/Lab/ImageProcessing/RotateScanline.htm

Keywords: Scanline, Bitmap Rotation, pf24Bit PixelFormat, pRGBTripleArray, TRGBTRipleArray, TRGBTriple, GetTickCount, BMP, JPG, GIF, EMF, WMF

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