From: | Andrew Crowe |
Date: | 4 May 99 at 19:27:33 |
Subject: | [amos-list] Crossing lines, fast. |
From: Andrew Crowe <andrewcrowe@enterprise.net>
Hi Everybody,
I know this was asked a while ago, and I know /I/ answered it, but has
anyone got a good routine to check if two lines are crossing? Speed *is*
important, so it can't check it graphically, it /has/ to be mathamatical.
And also, does anyone know a way to check if a point is in a closed
polygon of any shape? (you know, like the lasso tool in dpaint)
See ya.
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