[ncl-talk] saving high resolution plots for publications

[Guido Cioni]

I’m going to stop you right there. :) 

If you’re goal is to produce figures for publications then vector formats like PDF or EPS are preferable (and supported by NCL). They will scale perfectly regardless of a single-column/double-column layout and won’t pixelate. In fact, images that contain lines/points/shapes and combination of the latter ones should always be reproduced in vector format.

You can use a raster format (PNG, JPEG) only if the image/data you’re publishing is already on raster format (e.g. photos taken with cameras, satellite pictures…). 

Note that sometimes a PNG with a decent resolution for publication will be larger than a PDF with the same image. Please (!!) don’t use PNG for publications as long as they are not strictly necessary :) :) 

Cheers

> Il giorno 07 lug 2017, alle ore 10:51, Sri Nandini <snandini at marum.de> ha scritto:
> 
> Hello
> 
> Using NCL, i tried the 2 methods for saving my figures as png for publications.
> 1)The default method   wks =  gsn_open_wks("png", "my figure")
> 
> And trying to save as 600dpi/optimal resolution
> 2)  wks_type = "png"
>    wks_type at wkWidth   =  2500
>    wks_type at wkHeight  =  2500
> wks =  gsn_open_wks("png", "my figure")
> 
> Surprisingly the method 1) yields better sharper resolution figure then method 2).
> Could someone explain why?
> 
> Method 3) convert -density 300 (or 600) inputfile.png outfile.png yielded no difference when performed on output of method 1).
> 
> Any advice would be greatly appreciated.
> 
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