[metapost] METATYPE1 pen-stroking and tight curves

Shriramana Sharma samjnaa at gmail.com
Thu Sep 20 04:09:32 CEST 2012

Hi Matthew -- did you consider finding the radius of curvature
(http://en.wikipedia.org/wiki/Curvature) and testing it against the
radius of the stroking pen?

Also, re your previous remarks on how to find and introduce inflection
points, have you considered testing for the cross-product of the first
and second derivatives being zero? See
(but the algorithm is documented elsewhere too, like in
p 4 so I hope it's not the unique discovery of the caffeineowl

Do let me know of any progress you have in this regard as I am sure my
project will also be benefited.


Shriramana Sharma

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