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Re: IDLgrPolygon unexpected result [message #83384 is a reply to message #83383]

Wed, 27 February 2013 11:34

DavidF[1]
Messages: 94
Registered: April 2012

Member

On Wednesday, February 27, 2013 11:41:58 AM UTC-7, nata wrote:
> Hi guys,
>
>
>
> I am trying to create a polygon using the following set of points. I want my IDLgrPolygon to look like the plot so I add some vertices to close the shape.
>
>
>
> I don't understand what is going on here. I cannot get the polygon correctly. What am I missing?

I'm no expert in this area, but it looks to me like you have created your polygon using the left-hand rule, rather than the expected right-hand rule. Thus, you are looking at the back of your polygon, rather than the front. It is pretty important with polygons that you get the normal facing the viewer.

Cheers,

David

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[Message index]

		Re: IDLgrPolygon unexpected result By: Dick Jackson on Thu, 28 February 2013 23:51
		Re: IDLgrPolygon unexpected result By: natha on Thu, 28 February 2013 06:07
		Re: IDLgrPolygon unexpected result By: David Fanning on Thu, 28 February 2013 05:51
		Re: IDLgrPolygon unexpected result By: lecacheux.alain on Thu, 28 February 2013 05:22
		Re: IDLgrPolygon unexpected result By: Dick Jackson on Thu, 28 February 2013 01:03
		Re: IDLgrPolygon unexpected result By: natha on Wed, 27 February 2013 13:00
		Re: IDLgrPolygon unexpected result By: DavidF[1] on Wed, 27 February 2013 12:23
		Re: IDLgrPolygon unexpected result By: DavidF[1] on Wed, 27 February 2013 11:48
		Re: IDLgrPolygon unexpected result By: natha on Wed, 27 February 2013 11:43
		Re: IDLgrPolygon unexpected result By: DavidF[1] on Wed, 27 February 2013 11:34

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