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Re: question for contour on a shpere [message #54327 is a reply to message #54293]

Tue, 05 June 2007 19:30

airy.jiang
Messages: 37
Registered: May 2007

Member

On 6 4 , 8 24 , y...@spaceweather.ac.cn wrote:
> Hi, could you help me?
>
> I want to plot contours on a sphere's surface, how to do it?
>
> My data is full three-dimensional, that is (r, theta, phi, Var)
>
> I attached one example with this email.

I think you can try to use the IDLgrContour object.You can set the
vertex data to keyword "GEOMZ",and set the connectivity of the vertex
to the keyword "Polygon".But you need to make sure the connectivity of
your vertex are all right .Because the key of the right display for
the result is the proper connectivity to suit the data.So,if you have
computed the one and only connectivity of your data,or you have
already got a certain connectivity,you can obtained what you want with
that object.
By the way,to compute the connectivity of the vertex data is
difficult.Make sure you have already knowing some geometry
algorithm,unless that you may find that is really diffifult thing to
put the three dimension coordinates data on a contour.

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[Message index]

		Re: question for contour on a shpere By: kishore1818 on Thu, 07 June 2007 11:56
		Re: question for contour on a shpere By: airy.jiang on Tue, 05 June 2007 19:30

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