We seek advice on the following problem:
We have a global field. Sometimes we want to plot the whole
globale field, sometimes we want to zoom in on specific areas.
By setting the PLIM values to the appropriate window, we obtain
the lat-lon-grid and coastlines corresponding to that window,
but the field itself is still plotted in its entirety. What to do
to clip the field, too?
See code segments below.
Thank you for your advice.
Petra Seibert
@-----------------------------------------------------------------------@
| Petra SEIBERT, Dr.phil. | Universitaet fuer Bodenkultur (BOKU), Wien |
|--------------------------+--------------------------------------------|
| petra.seibert AT unknown | Institute of Meteorology and Physics (IMP) |
| Tel. +43-1-4705820-20 | University of Agricultural Sciences (BOKU) |
| Fax +43-1-4705820-60 | Tuerkenschanzstr. 18, A-1180 Wien, Austria |
|--------------------------+--------------------------------------------|
| IMP homepage | http://www.boku.ac.at/imp/ |
| Environmental Meteorol. | http://www.boku.ac.at/imp/envmet/ |
| Acoustic Remote Sensing | http://www.boku.ac.at/imp/isars/ |
@-----------------------------------------------------------------------@
To plot of the whole global-field the following calls are used:
c nxmax=361
c nymax=181
c numxgrid=359
c numygrid=179
c Inputfield:z(nxmax,nymax)
...
call mapset('CO',plim1,plim2,plim3,plim4) ! select area of plot
call maproj('CE',rlatmid,rlonmid,0.) !select map projektion
call mapstc('OU','CO') ! choose shorelines
call mapint ! initialize map
call arinam(map,lmap) ! initialize areas
call mapbla(map) ! add areas to map
call mpsetr('GR',10.) ! set resolution of lat/long grid
call mpsetr('GD',1.)
call mapgrd ! plot lat/long grid
call maplot ! plot the map
call maplbl ! draw a perimeter
C Settings of conpack
...
call arinam(map,lmap)
call cprect(z,nxmax,numxgrid,numygrid,rwrk,lrwk,iwrk,liwk)
call cppkcl(z,rwrk,iwrk)
...
call cpback(z,rwrk,iwrk) ! Draw perimeter
call cpclam(z,rwrk,iwrk,map) ! Add contours to area map
call cplbam(z,rwrk,iwrk,map) ! Add label boxes to area map
C Define the area shading
call arscam(map,xwrk,ywrk,nwrk,iarea,igrp,isiz,sfill_grau)
call cpcldm(z,rwrk,iwrk,map,cpdrpl) ! draw contours
call cplbdr(z,rwrk,iwrk) ! draw labels
call mapgrd ! plot lat/long grid
call maplot ! plot the map
call maplbl ! draw a perimeter
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