Hi,
I have been working on a set of utilities to enable users to
specify fields from site lists written in the new sites format.
One of the problems I have encountered with the new sites format
is the flagging of null values in the sites file. A solitary % as
a placeholder for a null numeric value causes the G_site_get()
function to return a -4 and skip the rest of the site.
Even if this was changed so that a solitary % (or @ for that matter)
could be parsed as a null value the Site structure itself does not
allow for attributes to be flagged as nulls. String attributes are
not a problem (they can be left as NULL pointers) but I think we
need a null_att to mirror the dbl_att and flag null numeric
attributes...
Has anyone else encountered this and have any comments...?
Also has anyone else been working on a method of specifying fields
in command line parameters for use in programs that read sites files?
Cheers
Kim Covil
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Kim Covil - Australian Geodynamics CRC E-mail: kimc@ned.dem.csiro.au
CSIRO Exploration & Mining Tel: +61 8 9284 8446 ,-_!\
PO Box 437, Nedlands, Fax: +61 8 9389 1906 / \
Western Australia 6009 *_,-._/
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Please direct all personal e-mail to kimbotha@cygnus.uwa.edu.au