Scott Smith wrote:
I'm trying to perform analysis on a set of coverages I received in e00
format. I imported them with m.in.e00 with no apparrent problems, but
v.support has been complaining and I don't know if any of that would
interfere with getting the non geographic attributes connected with the
vector maps, the output from my attempt to run v.support follows.
Well, you will find the attributes in dig_cats, but not with the
regular name (same of dig file). Saying m.in.e00 creates a "foo" vector
file, you should look at dig_att for "foo.xxx" files, each one being
a dig_cat file for one of the Arc/Info line/area attributes.
I know it's not very good, but i'm looking at PostgresSQL ...
V.support seems -at least- to have some problems with the Arc/Info
attribute linking sheme. I think that Arc/Info and Gass sometimes
disagree about where to put the identification point for area and/or
lines. V.support sometimes don't know which attributes belongs to
which line. I'm also thinking to rewrite "à la grass" the dig_att
writing routine.
[...]
Attaching labels
PNT_TO_AREA failed: (719448.051218, 502007.230708) (Category 472)
PNT_TO_AREA failed: (720457.946193, 497473.093750) (Category 517)
PNT_TO_AREA failed: (709717.288887, 494527.788002) (Category 521)
PNT_TO_AREA failed: (713150.383111, 493868.203704) (Category 534)
PNT_TO_AREA failed: (721301.768353, 461068.482060) (Category 757)
PNT_TO_AREA failed: (713772.643071, 461330.769097) (Category 763)
Number of lines: 2756
Number of nodes: 1861
Number of areas: 1010
Number of isles: 119
Number of atts : 1004
Number of unattached atts : 6
Snapped lines : 11
Snapping lines is probably the reason why you have 6 unattached atts
for areas (or areas are too small...)
[...]
WARNING: line 99 label: 99 matched another label: 102.
... About a thousand more lines like this ...
Number of lines: 7764
Number of nodes: 6859
Number of areas: 0
Number of isles: 0
Number of atts : 7764
Number of unattached atts : 0
Snapped lines : 0
Well, even with your tousand warnings, it seems that all your lines
get an attribute... But, is it the good one ? I'm afraid not.
--
Michel Wurtz ENGEES - CEREG
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Tel: +33 03.88.24.82.45 Fax: +33 03.88.37.04.97