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Re: [ferret_users] Difference between fill and shade



Thank you for clarifying that. It explains a lot! 

Best!
Amelia

On Mon, 25 May 2020 at 10:44, Olivier Marti <olivier.marti@xxxxxxxxxxxx> wrote:
SHADE draws squares (or rectangles) of uniforms colours. It use the grid boundaries to draw the squares. If the boundaries are not present in the input file, it will compute the boundaries by taking the middle of the grid points. The 'pixels' that you observe are just the grid of the data.

FILL draws a continuous field by interpolating the data between two grid points. The plot does not appears as pixelated. But be aware that interpolation algorithm used by FILL adds some information between grid points that are not present in the actual data.

You data *are* pixelated. SHARE shows it, FILL hides it.

Hope this helps,

Olivier

Le 25 mai 2020 à 09:26, Amelia Ebenezer <amelia.ebenezer@xxxxxxxxx> a écrit :

Hi! 

Can someone please tell me the difference between the commands FILL and SHADE? I had been plotting a highly pixelated variable using FILL which gave pretty smooth features. When I (accidentally) redid the plot with SHADE, it gave me a highly pixelated version but possibly closer to my data. 

I have checked this with coads_climatology and the same thing happens. I would like to understand the difference so then I can make the right choice for my data. Any help is highly appreciated! I use PyFerret v7.5 (on macOS High Sierra, v10.13.6)

Thanks
Amelia

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Olivier Marti  - LSCE Bât 714 p. 1049
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