Re: Making BIG images

On Wed, 3 Jun 2009, Saji N. Hameed wrote:

> Hi Don,
>
> Perhaps you only need to input the -geometry option of convert
> command.
>
> e.g:
> convert -geometry 1240x900
>
> (geometry is specified in pixels)

I believe this is what I did to make a 3 x 4 (foot) poster awhile
back, although I used a larger geometry. I also increased the value to
the "-density" option to make the fonts look better.

--Mary

> saji
> --
> * Don Morton <morton_at_arsc.edu> [2009-06-02 12:32:00 -0800]:
>
>> Hi,
>>
>> I'm sure this must be trivial, and perhaps not an NCL issue, but the
>> solution has eluded me.
>>
>> I'm posting some forecast graphics to the web, and users would like them
>> to be larger, but without a sacrifice in resolution. To date, I've been
>> able to use gsnPaperWidth and gsnPaperHeight resources to accomplish
>> this, but I end up with only a portion of the image - it seems like my
>> viewing device wants to continue treating the image as if it were being
>> displayed on 8.5" x 11.0" media.
>>
>> I've reduced the problem to a very simple script (see below). I run the
>> script to produce "Big.ps" and when I view it using "gs" or "gv" it only
>> shows me the left bottom section. However, by playing with page sizes
>> in "gv" I can get more or less of the image. So, I suspect that NCL is
>> probably doing what it should, and that my problems stem from my
>> ignorance in dealing with different media types.
>>
>> Once I get "Big.ps" I try to use ImageMagick to convert to GIF
>>
>> convert Big.ps Big.jpg
>>
>> but Big.jpg ends up, again, being only a partial image.
>>
>> Is there something I should be setting in NCL, or are there a set of
>> flags I should use with "convert" to ultimately get the full, but
>> bigger, image in GIF or PNG format?
>>
>> Thanks for any help. My simplified script follows:
>>
>> ; Include files
>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
>> load "$NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl"
>>
>> begin
>>
>> wrfoutFile =
>> "/projects/ARSCWTHR/ForecastProducts/AKTrial2/wrfout/2009052612/wrfout_d03_2009-05-30_09:00:00.nc"
>> ; Full path to the wrfout file
>>
>> f = addfile(wrfoutFile,"r") ; Opens the netCDF file
>>
>> wks = gsn_open_wks("ps", "Big") ; Open a workstation for plotting
>>
>> gsn_define_colormap(wks,"WhViBlGrYeOrReWh") ; Define the colormap
>>
>> ;;;;;;;;;;;;;; Temperature plot ;;;;;;;;;;;;;;;
>>
>> tc = wrf_user_getvar(f, "tc", 0) ; T in deg C
>> tc2d = tc(0,:,:)
>>
>> res = True
>> res_at_gsnMaximize = True ; Maximize size of plot
>> res_at_gsnPaperOrientation = "auto"
>> res_at_gsnPaperWidth = 17.0
>> res_at_gsnPaperHeight = 22.0
>>
>> plot = gsn_contour(wks, tc2d, res) ; Plot the data
>>
>> end
>>
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>
> --
> Saji N. Hameed
>
> APEC Climate Center
> 1463 U-dong, Haeundae-gu, +82 51 745 3951
> BUSAN 612-020, KOREA saji_at_apcc21.net
> Fax: +82-51-745-3999
>
>
>
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Received on Wed Jun 03 2009 - 08:24:59 MDT