[ncl-talk] saving high resolution plots for publications

[Barry Lynn]

Guido:

Thank you for clarifying.

Barry

On Sun, Jul 9, 2017 at 1:47 AM, Guido Cioni <guidocioni at gmail.com> wrote:

> The problem is that Power Point does NOT support PDFs as images. If you
> are trying to import pdf into power point slides they will be converted
> into low-resolution PNGs (or even JPEGs), thus the blurry image. If you are
> trying to produce presentation with power point and PDFs images than, yes,
> the best option is to use high-resolution PNGs. But the problem is Power
> Point, not NCL :P
>
> Ideally the best way of producing presentation is to use, when possible,
> vector image data as the presentation will most likely be reproduced on a
> projector/screen that does not have the same resolution/aspect ratio of
> your laptop/computer. With PDF you are always on the safe side, as you know
> that images will be adapted to every situation.
>
> Cheers
>
> Il giorno 08 lug 2017, alle ore 20:05, Barry Lynn <barry.h.lynn at gmail.com>
> ha scritto:
>
> Dear Guido:
>
> I appreciate that you're trying to explain this to us.
>
> I made a pdf and png of the same multi-paneled image.  When I blew-up the
> former, it became blurry.
>
> When I blew up the latter, it maintained a very clear picture.
>
> This was important because when I imported the figures to my Powerpoint,
> the pdf became unreadable when I increased
> its size.
>
> Also, I am using the Mac Book "Grab" software to cut out sections of the
> multi-panelled figures.  I have the same problem
> when I cut out the panel from the PDF and enlarge it in powerpoint.
>
> Is it possible that you are technically correct, but not practically?
>
> Or, maybe there is another way to import/cut out the pdf panels...?
>
> Barry
>
> On Fri, Jul 7, 2017 at 1:17 PM, Guido Cioni <guidocioni at gmail.com> wrote:
>
>> 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.
>>
>> _______________________________________________
>> ncl-talk mailing list
>> ncl-talk at ucar.edu
>> List instructions, subscriber options, unsubscribe:
>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>
>>
>>
>> _______________________________________________
>> ncl-talk mailing list
>> ncl-talk at ucar.edu
>> List instructions, subscriber options, unsubscribe:
>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>
>>
>
>
> --
> Barry H. Lynn, Ph.D
> Senior Lecturer,
> The Institute of the Earth Science,
> The Hebrew University of Jerusalem,
> Givat Ram, Jerusalem 91904, Israel
> Tel: 972 547 231 170
> Fax: (972)-25662581
>
> C.E.O, Weather It Is, LTD
> Weather and Climate Focus
> http://weather-it-is.com
> Jerusalem, Israel
> Local: 02 930 9525
> Cell: 054 7 231 170
> Int-IS: x972 2 930 9525
> US 914 432 3108 <(914)%20432-3108>
>
>
>


-- 
Barry H. Lynn, Ph.D
Senior Lecturer,
The Institute of the Earth Science,
The Hebrew University of Jerusalem,
Givat Ram, Jerusalem 91904, Israel
Tel: 972 547 231 170
Fax: (972)-25662581

C.E.O, Weather It Is, LTD
Weather and Climate Focus
http://weather-it-is.com
Jerusalem, Israel
Local: 02 930 9525
Cell: 054 7 231 170
Int-IS: x972 2 930 9525
US 914 432 3108
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.ucar.edu/pipermail/ncl-talk/attachments/20170709/df33b2cf/attachment.html