<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><DIV>Dear Mr Arlindo,</DIV>
<DIV> </DIV>
<DIV> 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) :-</DIV>
<DIV> </DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">C:\>grads<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">Starting X server under \Resources\Xming<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">Starting grads under c:\OPENGR~1\Contents\Cygwin\Versions\20A7OG~1.3\i686 ...<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><o:p><FONT size=3 face="Times New Roman"> </FONT></o:p></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">Grid Analysis and Display System (GrADS) Version 2.0.a7.oga.3<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">Copyright (c) 1988-2008 by Brian Doty and the<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">Institute for Global Environment and Society (IGES)<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">GrADS comes with ABSOLUTELY NO WARRANTY<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">See file COPYRIGHT for more information<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><o:p><FONT size=3 face="Times New Roman"> </FONT></o:p></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">Config: v2.0.a7.oga.3 little-endian readline printim grib2 netcdf hdf4-sds hdf5<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">opendap-grids,stn athena geotiff<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">Issue 'q config' command for more information.<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">Loading User Defined Extensions table </bin/gex/udxt> ... ok.<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">Landscape mode? ('n' for portrait):<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">GX Package Initialization: Size = 11 8.5<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">ga-> sdfopen i:\laptop\cdc\shum\shum.2010.nc<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">Scanning self-describing file:<SPAN style="mso-spacerun: yes"> </SPAN>i:\laptop\cdc\shum\shum.2010.nc<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">SDF file i:\laptop\cdc\shum\shum.2010.nc is open as file 1<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">LON set to 0 360<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">LAT set to -90 90<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">LEV set to 1000 1000<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">Time values set: 2010:1:1:0 2010:1:1:0<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">E set to 1 1<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">ga-> a=vint(1000,shum,500)<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">Error from <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:stockticker>VINT</st1:stockticker>:<SPAN style="mso-spacerun: yes"> </SPAN>Incompatible grids.<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">Define memory allocation size = 84680 bytes<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>6 [main] grads 3100 _cygtls::handle_exceptions: Exception: STATUS_ACCESS_V<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">IOLATION<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">Exception: STATUS_ACCESS_VIOLATION at eip=610C3938<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN style="mso-ansi-language: ES" lang=ES><FONT size=3><FONT face="Times New Roman">eax=5F676E69 ebx=11A74040 ecx=00000026 edx=7373696D esi=00000069 edi=11A73E48<o:p></o:p></FONT></FONT></SPAN></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">ebp=00000328 esp=0022A9D0 program=C:\OpenGrADS\Contents\Cygwin\Versions\2.0.a7.o<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">ga.3\i686\grads.exe, pid 3100, thread main<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">cs=001B ds=0023 es=0023 fs=003B gs=0000 ss=0023<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">Stack trace:<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">Frame<SPAN style="mso-spacerun: yes"> </SPAN>Function<SPAN style="mso-spacerun: yes"> </SPAN>Args<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>6910 [main] grads 3100 _cygtls::handle_exceptions: Exception: STATUS_ACCESS_V<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman">IOLATION<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3><FONT face="Times New Roman"><SPAN style="mso-spacerun: yes"> </SPAN>8471 [main] grads 3100 _cygtls::handle_exceptions: Error while dumping state<o:p></o:p></FONT></FONT></DIV>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><FONT size=3 face="Times New Roman">(probably corrupted stack)</FONT></DIV>
<DIV><BR> Can you help to resolve my problem ?</DIV>
<DIV> </DIV>
<DIV> Thank you and best regards.</DIV>
<DIV> </DIV>
<DIV>Sincerely,</DIV>
<DIV> </DIV>
<DIV>Ooi See Hai</DIV>
<DIV> </DIV></td></tr></table><br>