Julia's equivalent of MATLAB's inpolygon()

Question

Is there such function in Julia?

Desperately trying to migrate to Julia from MATLAB, but still finding myself dependent on it...

score 9 · Accepted Answer · answered Jun 28 '17 at 19:01

9

The GeometricalPredicates package has inpolygon: https://github.com/JuliaGeometry/GeometricalPredicates.jl

answered Jun 28 '17 at 19:01

Jeff Bezanson

3,147
23
26

score 3 · Answer 2 · answered Jun 28 '17 at 21:07

You could also investigate Luxor.jl:

using Luxor

p1 = Point(0,   0)
p2 = Point(10,  0) 
p3 = Point(10, 10) 
p4 = Point(0,  10) 

isinside(Point(5, 5), [p1, p2, p3, p4]) # true

isinside(Point(15, 5), [p1, p2, p3, p4]) # false

But make sure to check for vertex and edge exceptions...

score 0 · Answer 3 · answered Jul 16 '20 at 11:04

0

The PolygonOps package does point-in-polygon testing too.

It's more user-friendly, but possibly slower, than GeometricalPredicates.

(Hat tip: Julia forum.)

answered Jul 16 '20 at 11:04

Vectornaut

473
5
11

Julia's equivalent of MATLAB's inpolygon()

3 Answers3