There's a new GSUN resource called "gsnMaximize" that makes the size
of your graphical output as large as possible on whatever workstation
device (NCGM, X11 window, or PostScript file) you are drawing to.
This is especially useful for maximizing your PostScript output. In
the past, to maximize your PostScript output, you had to set the
resources "wkDeviceLowerX", "wkDeviceLowerY", "wkDeviceUpperX", and
"wkDeviceUpperY", which usually involved a trial-and-error process to
get the right values.
Now, if you set the resource "gsnMaximize" to True before going into a
gsn_* drawing routine, then the values for these four device
coordinates will be calculated in such a manner to maximize your
graphical output, without changing its aspect ratio (a minimum margin
of 0.5" will be left around the plot). Also, by default, the best
possible orientation (landscape or portrait) will be selected,
depending on your plot's shape. You can override this by setting
"gsnPaperOrientation" to the desired orientation.
Here's a short example that draws a cylindrical equidistant map plot
to a PostScript file called "example.ps". In this case, the
orientation automatically selected will be "landscape":
--------------------------------------------------
load "$NCARG_ROOT/lib/ncarg/nclex/gsun/gsn_code.ncl"
load "$NCARG_ROOT/lib/ncarg/nclex/gsun/gsn_csm.ncl"
begin
wks = gsn_open_wks("ps","example")
mpres = True
mpres@gsnMaximize = True
map = gsn_csm_map_ce(wks,mpres)
end
--------------------------------------------------
This resource also works with gsn_panel. For more information, see the
"resizing" section of the CSM Graphics Tutorial at:
http://www.cgd.ucar.edu/csm/support/CSM_Graphics/resize.shtml
Caveats:
-------
Once you start drawing to a frame, you cannot change the PS device
coordinates. Thus, if you first draw a text string, and then you call
a gsn_* routine with gsnMaximize set to True, your output may not be
maximized in the PostScript file. It will depend on what the device
coordinates were when you started drawing the text string. To get
around this problem, you need to call the gsn_* routine first, and
then draw the text string. The URL above has more information on
this topic.
Cheers,
--Mary Haley
This archive was generated by hypermail 2b29 : Tue Feb 19 2002 - 09:06:05 MST