how to adjust border line's thickness

[Li,Guilong [Ontario]]

Dear Grads users
 
I want to draw a contour plot which include Canadian and US border,
province boundary in Canada and state boundary in US. It seems Canadian
province boundary line is thinner than the US state boundary line.
Please see the following scrip for this plotting. My question is whether
Grads has a command which can control the thickness of the border line.
I tried different combinations, such as 'set map 1 5 1', it seems it
doesn't change as I want. Could someone help me? Thanks. -- Guilong
 
'reinit'
'open grid.ctl'
'open station.ctl'
'enable print zz.gmf'
'set grads off'
'set gxout shaded'
'set lon -104 -52'
'set lat 41 60'
'set frame off'
'set mproj nps'
'set mpdset province'
'set poli on'
'set gxout contour'
'set clevs 0 5 10 15 20 30 40 50'
'set ccolor 1'
'set clab forced'
'set grid off'
'd oacres(ts,ts.2)'
'set mproj nps'
'set mpdset hires'
'set poli on'
'basemap O 0 15'
'print'
'disable print'
 
 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://gradsusr.org/pipermail/gradsusr/attachments/20090305/fb17eb10/attachment.html 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: test.ps
Type: application/postscript
Size: 431532 bytes
Desc: test.ps
Url : http://gradsusr.org/pipermail/gradsusr/attachments/20090305/fb17eb10/attachment.ps