[gradsusr] Problem using simultaneously maskout and set parea

[Kiswendsida Hyacinthe Guigma]

Dear grads users,
I am facing  challenges masking undesired values. Actually I have got a Netcdf file of wind data (representing composites for different situations) covering the Northern Africa. I want to plot the wind pattern but only where magnitude is greater than 2m/s. When I do that for one single plot, it works perfectly. However,  I want to do that for different composites and then I used set parea in order to have four (4) of them in the same page. Unfortunately, in that case it is only the first virtual page that has the mpdset correct. For all the rest there is no basemap in the background. I am attaching (i)my data, (ii) the output and (iii) my code,

Your help is well appreciated.
Regards

------------------------

GUIGMA
-------------- next part --------------
A non-text attachment was scrubbed...
Name: MFC_AMJ.nc
Type: application/x-netcdf
Size: 391064 bytes
Desc: MFC_AMJ.nc
URL: <http://gradsusr.org/pipermail/gradsusr/attachments/20180815/4cbe95b8/attachment-0001.nc>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: wind_925hPa_AMJ.gif
Type: image/gif
Size: 23725 bytes
Desc: wind_925hPa_AMJ.gif
URL: <http://gradsusr.org/pipermail/gradsusr/attachments/20180815/4cbe95b8/attachment-0001.gif>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: GUIGMA.gs
Type: text/x-genie
Size: 2267 bytes
Desc: GUIGMA.gs
URL: <http://gradsusr.org/pipermail/gradsusr/attachments/20180815/4cbe95b8/attachment-0001.bin>