wok-6.x view libspiro/description.txt @ rev 18652
Add libtkimg (again)
| author | Pascal Bellard <pascal.bellard@slitaz.org> |
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| date | Wed Dec 02 14:51:36 2015 +0100 (2015-12-02) |
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| children |
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1 Spiro is the creation of Raph Levien. It simplifies the drawing of beautiful
2 curves.
4 Using bézier splines an artist can easily draw curves with the same slope on
5 either side of an on-curve point. Spiros, on the other hand, are based on
6 clothoid splines which make it easy to maintain constant curvature as well as
7 constant slope. Such curves will simply look nicer.
9 Raph Levien's spiro splines only use on-curve points and so are easier to use
10 and more intuitive to the artist.
12 This library will take an array of spiro control points and convert them into
13 a series of bézier splines which can then be used in the myriad of ways the
14 world has come to use béziers.