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@turf/transform-rotate on Polygon, 'coordinates must contain numbers' #1920

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MattIPv4 opened this issue Jun 30, 2020 · 2 comments
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@turf/transform-rotate on Polygon, 'coordinates must contain numbers' #1920

MattIPv4 opened this issue Jun 30, 2020 · 2 comments

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@MattIPv4
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@MattIPv4 MattIPv4 commented Jun 30, 2020

I have a Polygon (polygon from @turf/helpers) and need to rotate it 180 degrees, so I am using transformRotate from @turf/transform-rotate.

However, whenever I call transformRotate(poly, 180), I get back an error with coordinates must contain numbers, which makes no sense to me?

Basic reproduction can be seen here: https://repl.it/repls/DeafeningWelloffNumericalanalysis#index.js
@stebogit
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@stebogit stebogit commented Jul 1, 2020

@MattIPv4 Turf coords must follow the WGS84 standards, therefore in [longitude, latitude] order, where latitude has values between -90 and 90.
Many values in your coords array are outside the map:

Screen Shot 2020-06-30 at 5 32 32 PM
@MattIPv4
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@MattIPv4 MattIPv4 commented Jul 1, 2020

Ah, didn't realise that, makes sense. Will look for another solution to rotating the poly -- I'm only using turf for working with polys are no other library seems to be able to take arbitrary coordinates and create polys, then merge them cleanly.
@stebogit stebogit closed this Jul 1, 2020
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