| --- Log opened Sat Jun 26 00:00:08 2021 |
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| 22:35 | <&McMartin> | https://twitter.com/AlmasBaim/status/1408697532495151106 |
| 22:35 | <&McMartin> | the pro strats |
| 22:35 | <~Vornicus> | sigh |
| 22:36 | <~Vornicus> | there's a *number* for this |
| 22:36 | <~Vornicus> | you plug it into your bezier as (1, 0) (1, x) (x, 1) (0, 1), and you get a cubic bezier that matches a quarter circle |
| 22:37 | <~Vornicus> | (it's 4 * (sqrt(2) - 1) / 3) |
| 22:43 | <~Vornicus> | he may think he's being unnecessarily clever but this is *exactly how it is done* in some things |
| 22:51 | <~Vornicus> | The operators that produce arcs (arc, arcn, arct, and arcto) represent them internally as one or more Bézier cubic curves (see curveto) that approximate the |
| 22:51 | <~Vornicus> | required shape. This is done with sufficient accuracy that a faithful rendition of |
| 22:51 | <~Vornicus> | an arc is produced. However, a program that reads the constructed path using |
| 22:51 | <~Vornicus> | pathforall will encounter curveto segments where arcs were specified originally |
| 22:51 | <~Vornicus> | ...that didn't paste well |
| 22:52 | <~Vornicus> | But that is from the postscript reference manual |
| 22:54 | <~Vornicus> | https://www.adobe.com/content/dam/acom/en/devnet/actionscript/articles/psrefman.pdf page 365 (373 counting frontmatter) describes the arc operator; the last full paragraph is quoted above |
| 23:11 | <~Vornicus> | I appear to be grumpy |
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| --- Log closed Sun Jun 27 00:00:09 2021 |