[gradsusr] use of vint for an area

[See Hai Ooi]

Dear Mr Arlindo,
 
            It appears to me that the vint function is only valid for a point.  When I employed it for an area, I encountered the following problem (I use window version of GrADS under VISTA OS) :-
 
C:\>grads
Starting X server under \Resources\Xming
Starting grads under c:\OPENGR~1\Contents\Cygwin\Versions\20A7OG~1.3\i686 ...
 
Grid Analysis and Display System (GrADS) Version 2.0.a7.oga.3
Copyright (c) 1988-2008 by Brian Doty and the
Institute for Global Environment and Society (IGES)
GrADS comes with ABSOLUTELY NO WARRANTY
See file COPYRIGHT for more information
 
Config: v2.0.a7.oga.3 little-endian readline printim grib2 netcdf hdf4-sds hdf5
opendap-grids,stn athena geotiff
Issue 'q config' command for more information.
Loading User Defined Extensions table </bin/gex/udxt> ... ok.
Landscape mode? ('n' for portrait):
GX Package Initialization: Size = 11 8.5
ga-> sdfopen i:\laptop\cdc\shum\shum.2010.nc
Scanning self-describing file:  i:\laptop\cdc\shum\shum.2010.nc
SDF file i:\laptop\cdc\shum\shum.2010.nc is open as file 1
LON set to 0 360
LAT set to -90 90
LEV set to 1000 1000
Time values set: 2010:1:1:0 2010:1:1:0
E set to 1 1
ga-> a=vint(1000,shum,500)
Error from VINT:  Incompatible grids.
Define memory allocation size = 84680 bytes
      6 [main] grads 3100 _cygtls::handle_exceptions: Exception: STATUS_ACCESS_V
IOLATION
Exception: STATUS_ACCESS_VIOLATION at eip=610C3938
eax=5F676E69 ebx=11A74040 ecx=00000026 edx=7373696D esi=00000069 edi=11A73E48
ebp=00000328 esp=0022A9D0 program=C:\OpenGrADS\Contents\Cygwin\Versions\2.0.a7.o
ga.3\i686\grads.exe, pid 3100, thread main
cs=001B ds=0023 es=0023 fs=003B gs=0000 ss=0023
Stack trace:
Frame     Function  Args
   6910 [main] grads 3100 _cygtls::handle_exceptions: Exception: STATUS_ACCESS_V
IOLATION
   8471 [main] grads 3100 _cygtls::handle_exceptions: Error while dumping state
(probably corrupted stack)

        Can you help to resolve my problem ?
 
        Thank you and best regards.
 
Sincerely,
 
Ooi See Hai
 

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