Thanks for that info Stonie. I thought I had read somewhere that the
redbook graphics would be able to have those attributes changed but
apparently not. Thanks for your help...it is appreciated.
Kevin
On Mon, Apr 15, 2024 at 5:45 PM Stonie Cooper <cooper@xxxxxxxx> wrote:
> Kevin - it has been awhile since I have worked with the Redbook graphics
> from NOAA, but the last time I worked with them, there were no color or
> polygon attributes in the files. They were straight vector draw
> information, but nothing that could allow for automated generation of
> graphics with colors and the ability to edit pip size, etc.
>
> *Stonie Cooper*
> Software Engineer III
> NSF Unidata Program Center
> University Corporation for Atmospheric Research
> *I acknowledge that the land I live and work on is the traditional home of
> The **Chahiksichahiks (**Pawnee), The **Umoⁿhoⁿ (**Omaha), and The **Jiwere
> (**Otoe).*
>
>
> On Mon, Apr 15, 2024 at 11:46 AM Kevin Polston <kevin.polston54@xxxxxxxxx>
> wrote:
>
>> I have a question. I have been perplexed in trying to figure out how to
>> change the colors and attributes of the 3 hourly fronts that you get in the
>> redbook graphics in gempak. Right now they are all the same color and the
>> "pips" on the front are huge...I was wanting to make them a little smaller.
>> So I looked at the options in GPMAP. There is an option called VGFILE and
>> it looks like you can scale the file; change the attributes and filter the
>> file. I think the main one I need to use is the Attribute option.
>> According to the gempak info listed in the VGFILE option,
>> "Specifying the attribute file allows VGF object attributes to be
>>
>> modified for output devices by setting their values. Attributes such
>> as color, size, thickness, etc. can be changed for particular object
>> sub-types, e.g., cold fronts. Also, sub-types can be eliminated from
>> the output device by setting their major color number to -1.
>> I am attaching a file that follows the setting.tbl file in the $GEMTBL/pgen
>> directory. I renamed this one webtable_mcd.tbl It appears that the fronts
>> are listed as "Sub-Types" and it has the main types of fronts listed. I have
>> tried using this in my script but I am just getting the yellow color for all
>> the fronts.
>>
>> gpmap << EOF
>> vgfile = $METDAT/vg/90F-SFC_FRONTS_3H/${FRONT}|scale.fax|webtable_mcd.tbl
>> \$mapfil = hipowo.cia
>> map = 0
>> garea = ${region}
>> stnplt =
>> proj = rad
>> latlon = 0
>> clear = no
>> title = 15/-3/${yy}${mm}${dd}/${hh}${MM} SFC FRONT
>> DEVICE = gif|${GIF_PATH}sfc_front_${region}.gif |1920;1080
>> run
>>
>> EOF
>>
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