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Re: disk arc [message #92941 is a reply to message #92939]

Wed, 30 March 2016 15:47

wlandsman
Messages: 743
Registered: June 2000

Senior Member

On Wednesday, March 30, 2016 at 4:45:13 PM UTC-4, wlandsman wrote:
> If you have a set of X, Y positions and a center position xc,yc then you can find the angle from the center
>
> ang = atan( x-xc, y-yc)
>
> You can then assign the angles into sectors of size !pi/4
>

I had X and Y reversed

ang = atan( y-yc, x-xc)

http://www.harrisgeospatial.com/docs/ATAN.html

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[Message index]

		disk arc By: Masoud Afshari on Wed, 30 March 2016 09:21
		Re: disk arc By: wlandsman on Wed, 30 March 2016 13:45
		Re: disk arc By: wlandsman on Wed, 30 March 2016 15:47

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