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Re: sort points clockwise or clounterclockwise [message #91158 is a reply to message #91141]

Tue, 09 June 2015 09:19

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

On Monday, June 8, 2015 at 4:32:53 PM UTC-4, junum wrote:
> Hi,
>
> I am trying to order points of closed polygon in clockwise or counterclockwise.
> Here is a octagon and I tried to use Triangulate that I searched.

I would never have thought to use TRIANGULATE to order items.

Why not use ATAN(Y,X) which gives the angle. Your points are not centered on the origin. But that is easy enough, your circle is centered on (2.5,2.5)

ANGLE = ATAN(Y-2.5,X-2.5)

Now sort on ANGLE.

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[Message index]

		sort points clockwise or clounterclockwise By: junsix on Mon, 08 June 2015 13:32
		Re: sort points clockwise or clounterclockwise By: Craig Markwardt on Tue, 09 June 2015 09:19
		Re: sort points clockwise or clounterclockwise By: junsix on Tue, 09 June 2015 13:11

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