[ncl-talk] Postscript output sizing

[Adam Phillips]

Hi Alison,
In short, lots of different aspects of a plot can have an effect on the
size of a plot. The tickmarks, the tickmark labels, the labelbar, the
length of the titles/subtitles and their font sizes, the aspect ratio of
the plot, whether you are setting gsnMaximize or not, etc. When it comes to
plots over a map, NCL will not alter the aspect ratio of a plot, unless you
tell it to:
mpres at mpShapeMode = "FreeAspect"
https://www.ncl.ucar.edu/Document/Graphics/Resources/mp.shtml#mpShapeMode

If you set that resource to FreeAspect, you will have some finer control
over the size of your plot by setting the various vp resources:
mpres at vpXF = 0.2    ; starting point of plot on x-axis in NDC units
mpres at vpWidthF = 0.6    ; width of plot in NDC units
mpres at vpHeightF = 0.6   ; height of plot in NDC units
mpres at vpYF = 0.8   ; starting point of plot on y-axis in NDC units.

See the various examples listed here that use the mpShapeMode resource:
https://www.ncl.ucar.edu/Applications/res_list.shtml#mpShapeMode

I don't know if that is as complete an answer you were looking for or not.
If not, let ncl-talk know.
Adam


On Fri, Feb 23, 2018 at 12:45 PM, Alison Bridger <alison.bridger at sjsu.edu>
wrote:

> Hi all, This is a general question...
>
> My output format of choice is postscript (ps). I am doing a study and have
> written a handful of codes, and each one produces a plot of a different
> size and shape! I am looking for some general guidelines on how to fix size
> and shape - something along the lines of xmin/xmax/ymin/ymax - all relative
> to an 11x8.5 sheet of paper in either landscape or portrait mode.
>
> I had a quick look and saw something scary about - "it depends on your
> output mode and which ncl plotting routine you use"!!! Does not sound
> general!
>
> FTR, I am reading a WRF output file, extracting and plotting via commands
> like
> wrf_contour, wrf_map_overlays, wrf_overlays
>
> I've attached a play code as an example: the result comes out in a
> rectangle! I was expecting a square...I'm plotting an array ("grad") which
> is 71x41 ... that's probably why?
>
> Thanks for pointing me in the right general direction!
>
> Alison
>
> --
>
>                  Alison F.C. Bridger
>                   Professor & Chair
>
>     Department of Meteorology and Climate Science
>
>     San Jose State University      tel  408.924.5206 <(408)%20924-5206>
>     One Washington Square          fax  408.924.5191 <(408)%20924-5191>
>     San Jose, CA 95192-0104
>
>              email:   Alison.Bridger at sjsu.edu
>
>        *Global CO2 levels...400 ppm and still rising...happy?*
>
>
>                  www.sjsu.edu/meteorology <http://www.met.sjsu.edu>
>
>
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-- 
Adam Phillips
Associate Scientist,  Climate and Global Dynamics Laboratory, NCAR
www.cgd.ucar.edu/staff/asphilli/   303-497-1726

<http://www.cgd.ucar.edu/staff/asphilli>
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