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Re: filled contour plot within a polygon [message #93108 is a reply to message #93103]

Thu, 28 April 2016 09:16

ZP Yin
Messages: 3
Registered: April 2016

Junior Member

On Thursday, April 28, 2016 at 5:18:42 PM UTC+8, yunf...@hotmail.com wrote:
> http://www.esrl.noaa.gov/psd/data/narr/images/narr.plot2.png
> that's exactly what i want,a filled contour plot with clear boundary lines, EXCEPT for the example is plotted using standard products but i've only tens of irregular-gridded data points in a state. Any guy tried this before? i think it's a huge task.

I'm afraid IDL has supported all the functions you may need to make it done.
First, using GRIDDATA() to interpolate irregular gridded data to a regular grid. Then using CONTOUR() to draw a filled contour plot. At last, Using MAP() and MAPCONTINENTS() to load the boundary lines. Most of the functions are available above IDL8.0.
I hope these may be helpful to you.

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[Message index]

		filled contour plot within a polygon By: yunfzhang on Thu, 28 April 2016 02:18
		Re: filled contour plot within a polygon By: ZP Yin on Thu, 28 April 2016 09:16
		Re: filled contour plot within a polygon By: yunfzhang on Fri, 29 April 2016 03:26

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