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From: | Xavier Glattard |
Subject: | Re: Need informations about NSAnimation on MacOS |
Date: | Fri, 23 Mar 2007 15:04:50 +0000 (UTC) |
User-agent: | Loom/3.14 (http://gmane.org/) |
<leeg <at> thaesofereode.info> writes: > > 2) I dont understand the 3 NSAnimationCurve... > > - Are they linear or polynomic functions ? > > - what do 'slowly speeds up' and 'slows down' really mean ? > > > > They're certainly polynomial, but in fact they may not fit any > finite-order polynomial function (may be sinusoidal for instance). I > agree with the suggestion by Nicolas that approximating a Bezier curve is > a good approach. I agree :-) I had a quick look in gnustep code but i can't find any Bezier curve implementation : all the math is hidden in the low level display server/library. Any suggestion ? A well-known library that could help me ? Thanks ! Xavier
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