# setup region
g.region rast=elevation.dem
# create a point
echo "597843.375|4920255.640625" | v.in.ascii out=testing
# add table and make a column for loading elev into
v.db.addtable testing
v.db.addcol testing col='elev double'
# read elevation.dem at the point:
v.what.rast vect=testing rast=elevation.dem col=elev
##
## Ack! what does this mean?
##
WARNING: Raster type is integer and column type is float
WARNING: More points (2) of category 1, value set to 'NULL'
1 categories loaded from table
1 categories loaded from vector
0 categories from vector missing in table
1 duplicate categories in vector
1 records updated
0 update errors
## check result: missing the elevation.dem value
db.select testing
cat|elev
1|
... it looks like this error is being thrown from some kind of caching effort:
# from v.what.rast/main.c:
for (point = 0 ; point < point_cnt ; point++) {
if ( cache[point].count > 1 ) {
G_warning ( _("More points (%d) of category %d, value set to
'NULL'"),
cache[point].count, cache[point].cat );
dupl_cnt++;
}
/* category exist in DB ? */
cex = (int *) bsearch((void *) &(cache[point].cat), catexst, select,
sizeof(int), srch_cat);
if ( cex == NULL ) { /* cat does not exist in DB */
norec_cnt++;
G_warning(_("No record for category %d in table <%s>"),
cache[point].cat, Fi->table );
continue;
}
I am using CVS from a couple weeks ago.. could this have been recently
introduced / fixed?
I will download the latest CVS and report back.
Cheers,
Dylan
--
Dylan Beaudette
Soil Resource Laboratory
http://casoilresource.lawr.ucdavis.edu/
University of California at Davis
530.754.7341
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