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Re: how to plot the data of a 2D array with Z values as color [message #70189 is a reply to message #70123]

Mon, 22 March 2010 09:52

mankoff
Messages: 131
Registered: March 2004

Senior Member

On Mar 22, 8:40 am, clément mayet <cma...@gmail.com> wrote:
> On 18 mar, 21:03, Gray <grayliketheco...@gmail.com> wrote:
>
>
>
>> On Mar 18, 12:33 pm, clément mayet <cma...@gmail.com> wrote:
>
>>> Hi all,
>
>>> I would like to plot a map from a twoD array. My array contains Z
>>> values and the X,Y index corresponds to latitude/longitude. I use the
>>> CONTOUR procedure like this:
>
>>> MAP_SET,/MERCATOR, /GRID, /NOERASE, /ISOTROPIC, LIMIT=limit
>>> CONTOUR, Z, lon, lat
>
>>> My question is : is there a simplest way to do that ( I mean directly
>>> associate a color to the Zvalue, without calculating the contours,
>>> which can be quite long for large arrays)
>
>>> Thanks for your help
>
>> I'd check this out:http://www.dfanning.com/graphics_tips/coloredline.html
>
> Thank you for your answer, even if that's not really what I was
> looking for. I've found the solution using MAP_IMAGE and TVSCL.

CONTOUR also has /FILL but I'd do MAP_IMAGE as /FILL is equivalent to
FLOOR().

-k.

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[Message index]

		how to plot the data of a 2D array with Z values as color By: clément mayet on Thu, 18 March 2010 09:33
		Re: how to plot the data of a 2D array with Z values as color By: mankoff on Mon, 22 March 2010 09:52
		Re: how to plot the data of a 2D array with Z values as color By: clément mayet on Mon, 22 March 2010 05:40
		Re: how to plot the data of a 2D array with Z values as color By: Gray on Thu, 18 March 2010 13:03

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