[ncl-talk] Add polyline, polygon, and polytext to a map generates two PNG files.
Wei Huang
whuang at univ-wea.com
Tue Jul 14 12:18:29 MDT 2015
Adam,
I used gsn_add_* suite for the polylines, polygons, polytexts.
If I set:
res = True
res at gsnDraw = False
res at gsnFrame = False
It can turn off (eliminate) the blank map, but later, there are a whole bunch of warning msgs,
warning:gsnDraw/gsnFrame is not a valid resource in graphic_style at this time.
This make it hard to read other msgs.
Thanks,
Wei Huang
From: Adam Phillips [mailto:asphilli at ucar.edu]
Sent: Tuesday, July 14, 2015 1:07 PM
To: Wei Huang
Cc: ncl-talk at ucar.edu
Subject: Re: [ncl-talk] Add polyline, polygon, and polytext to a map generates two PNG files.
Hi Wei,
It depends on what functions/procedures you are using to draw your polylines/markers/text.. In all cases you should set gsnFrame = False in your res resource list.
I prefer the gsn_add_* suite of functions to do what you are doing as it allows paneling. For those functions you also need to add gsnDraw = False to your res resource list.
If you are just using gsn_text/gsn_polygon/gsn_polygon you can get away with not setting gsnDraw as is shown in polygon example #8 here:
https://www.ncl.ucar.edu/Applications/Scripts/polyg_8.ncl
Hope that helps!
Adam
On Tue, Jul 14, 2015 at 10:05 AM, Wei Huang <whuang at univ-wea.com<mailto:whuang at univ-wea.com>> wrote:
I am trying to add polyline, polygon, and polytext to a map, steps as below:
res = ...
wks = ...
map = gsn_csm_map(wks, res)
;add lots of polylines, polygons, and polytexts to map
draw(map)
frame(wks)
It generates two PNG files. With the first just a map.
How can I remove the first blank map?
Thanks,
Wei Huang
whuang at univ-wea.com<mailto:whuang at univ-wea.com>
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--
Adam Phillips
Associate Scientist, Climate and Global Dynamics Laboratory, NCAR
www.cgd.ucar.edu/staff/asphilli/<http://www.cgd.ucar.edu/staff/asphilli/> 303-497-1726
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