[gradsusr] How to convert grads output to high resolution jpeg picture ?
Jennifer M Adams
jadams21 at gmu.edu
Sun Nov 26 08:28:54 EST 2017
GrADS has 12 preset line thickness settings. For image output (and the display) in pre-Cairo builds of GrADS (e.g. 2.0.2), line thickness settings between 1 and 5 produced the same thin line; thickness settings between 6-11 created a thick line, and setting 12 resulted in a fat line. For postscript output, the settings 1 through 12 are distinct. In the Cairo era, line thickness settings are distinct for all image rendering: display, image output, and vector graphics (.ps and .pdf and .svg).
Don’t use the ‘apt’ command to install GrADS. Get a pre-compiled set of binary executables from http://cola.gmu.edu/grads/downloads.php.
—Jennifer
> On Nov 25, 2017, at 6:49 AM, Gevorgyan Artur <agm86 at yandex.ru> wrote:
>
> Yes, for my contours, the graphics output change when I set ‘cthick’ higher, say up to 12. For relatively low resolution image (150-200 dpi) it is fine, but at 300 dpi resolution I would like to increase the thickness of my contours.
>
> Another problem is that I am not fine with the thickness of my shapefile, I use 'set line 1 1 12' for the highest thickness for my state boundary when I make color map 'set gxout shaded'.
>
> How do you suggest to update the GrADS ? Is it possible to use the "apt" command in ubuntu for update or I need to reinstall newer GrADS ?
>
>
>
> 25.11.2017, 14:20, "Andrew Friedman" <andfried at gmail.com>:
>> Does the graphics output change when you set ‘cthick’ much higher, say up to 12?
>>
>> Are you abble to update GrADS? It’ll give you more output flexibility.
>>
>>
>> On Nov 25, 2017, at 11:18 AM, Gevorgyan Artur <agm86 at yandex.ru> wrote:
>>
>> Dear Andrew,
>>
>> I use the Grid Analysis and Display System (GrADS) Version 2.0.2.
>>
>>
>>
>> 25.11.2017, 13:08, "Andrew Friedman" <andfried at gmail.com>:
>> http://cola.gmu.edu/grads/gadoc/gradcomdsetcthick.html
>>
>> What version of GrADS are you running? Some of the thickness options only work with newer verions.
>>
>> -Andrew
>>
>>
>> On Nov 25, 2017, at 10:33 AM, Gevorgyan Artur <agm86 at yandex.ru> wrote:
>>
>> Dear Stuart,
>>
>> Thanks for your help, but I have already tried to change the 'set cthick ', and it does not work, my state boundaries, x and y labels and contours do not became thicker when I save my pictures at high resolution, e.g. 'printim output.png x3300 y2550' which corresponds to 300 pixels per inch.
>>
>> 25.11.2017, 11:31, "CW Weather" <weatherstu at chorleyweather.com>:
>> Artur,
>>
>>
>> Use 'set cthick 5' with your contour and adjust the value accordingly.
>>
>> regards,
>>
>> Stuart.
>>
>>
>> On 23-11-2017 11:26, Gevorgyan Artur wrote:
>>
>> Dear Jennifer,
>>
>> when I increase the image resolution using "printim" with the xnnn and ynnn option my lines and contours on the image became thiner, i.e. the higher the image resolution, the thiner the lines and contours. Could you suggest a way to control the thickness of lines ?
>>
>> Best regards,
>> Artur
>>
>>
>> 19.11.2017, 01:14, "Jennifer M Adams" <jadams21 at gmu.edu>:
>> You can set the resolution of the output image with optional arguments to printim. If your page is landscape (11 x 8.5), then the command 'printim output.png x3300 y2550' should have 300 pixels per inch.
>> —Jennifer
>>
>>
>> On Nov 13, 2017, at 3:20 PM, Ricardo Hallak <ricardo.hallak at iag.usp.br> wrote:
>>
>> Hi, Bill.
>>
>> If I'm not completely wrong, printim cannot change jpeg dpi.
>>
>> I think we should ask for help to Jennifer Adams:
>>
>> is it possible to get a 300 dpi figure directly from GrADS?
>>
>> If yes, we would become very grateful if you could clarify us how to get a 300 dpi figure in GrADS.
>>
>> Thank you very much for your time.
>>
>>
>>
>> --
>> Prof. Ricardo Hallak
>> Laboratório de Meteorologia de Mesoescala - LMM
>> Departamento de Ciências Atmosféricas
>> Instituto de Astronomia, Geofísica e Ciências Atmosféricas
>> Universidade de São Paulo
>>
>> Phone: +55(11)3091-4698
>>
>> 2017-11-13 17:27 GMT-02:00 Bill Reilly <bill_reilly at compuserve.com>:
>> Use printim
>>
>> http://cola.gmu.edu/grads/gadoc/gradcomdprintim.html
>>
>> --
>>
>> Bill Reilly
>>
>>
>> (+34) 686-110-748
>>
>>
>>
>> bill at passageweather.com
>> www.passageweather.com
>>
>>
>>
>> bill at brwebworks.com
>> www.brwebworks.com
>>
>>
>>
>> On 13/11/2017 18:39, Gevorgyan Artur wrote:
>> GrADS output is a '*.mf' file. I need to convert the grads output to high resolution jpeg picture (map), with 300 dpi resolution. What command need I use to convert the GrADS output to a picture with the desired resolution (quality) and extension (jpeg)?
>>
>>
>>
>>
>>
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>> --
>> Jennifer Miletta Adams
>> Center for Ocean-Land-Atmosphere Studies (COLA)
>> George Mason University
>>
>>
>>
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>> --
>> Kind regards,
>>
>> Stuart Markham
>>
>> Founder of CW Weather
>>
>> <9e849405.png>
>>
>> ,
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Jennifer Miletta Adams
Center for Ocean-Land-Atmosphere Studies (COLA)
George Mason University
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