path_circle_3p3-point parametrization of circles |
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local circle_3p = require'path_circle_3p'
circle_3p.to_circle(x1, y1, x2, y2, x3, y3) -> cx, cy, r
Find the unique circle that passes through 3 points. If the points are collinear or any two points are coincidental, nothing is returned.
See also: path_arc_3p