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RE: [Devel] [bug?] FT_Vector_Rotate
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From: |
Graham Asher |
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Subject: |
RE: [Devel] [bug?] FT_Vector_Rotate |
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Date: |
Tue, 13 May 2003 12:53:38 +0100 |
(In reply to Joseph Koshy):
The bug is in the documentation. FT_Vector_Rotate takes coordinates in 16.16
format, not 26.6. The vector you used was so small that the result was
swamped by rounding errors.
If you use (1 << 16,0) as the vector, it rotates to (-1,65535) which is off
by 1/65536 in both directions - not too bad, really.
The documentation of both FT_Vector_Rotate and FT_Pos need to be changed.
Graham Asher