That's interesting. This may explain why the --fid switch has no
effect. I wonder what the --fid switch is for, then.
Brent Fraser wrote:
Is the FID
supposed to be in the .dbf file that accompanies the .shp file?
I have examined this file, and I don't see an FID column (col
Is the FID
> supposed to be in the .dbf file that accompanies the .shp file?
> I have examined this file, and I don't see an FID column (column
> names are in the first row). In particular, since starspan2
> reports an FID of 0 for Zemmour, Mauritania, I would expect to
> see a column with t
Great question. I should have mentioned that I did so, and didn't see
anything weird. I zoomed way in, and it just looks like an unbroken
line. I did this with the Tiris Zemmour polygon selected, and again
with the Adrar polygon selected, hoping something would pop out. But,
it looks fine.
a) Is there some way to get a dump of FIDs with their corresponding
country/province names?
You could use dbfdump. I think it is delivered with FWTools.
Is the FID supposed to be in the .dbf file that accompanies the .shp
file? I have examined this file, and I don't s
> Hi,
>
> I performed the OpenJump procedure. But, I still get:
>
> Macintosh-4:starspan_tests gregederer$ starspan2 --progress --RID none
> --vector afadmn2n.shp --fid 3 --raster rfe_2006_04_pct.tif --stats
> results.txt avg --out-prefix bar --out-type table
> Number of features: 550
> starspan_
Hi,
I performed the OpenJump procedure. But, I still get:
Macintosh-4:starspan_tests gregederer$ starspan2 --progress --RID none
--vector afadmn2n.shp --fid 3 --raster rfe_2006_04_pct.tif --stats
results.txt avg --out-prefix bar --out-type table
Number of features: 550
starspan_csv: 1: E
Thanks, Brent. I'll give this a whirl.
Cheers,
Greg
Brent Fraser wrote:
Greg,
OpenJump is a good topology/geometry fixing tool. Load your
shapefile and do Tools->Generate->Buffer, set the Buffer distance to 0
to clean up the polygon vertices. I seem to recall it may have a
problem pres
Greg,
OpenJump is a good topology/geometry fixing tool. Load your shapefile and do
Tools->Generate->Buffer, set the Buffer distance to 0 to clean up the polygon
vertices. I seem to recall it may have a problem preserving attributes when the
results are saved as a shapefile, but you may be a
Brent,
My Google search didn't turn up much of use (most of the results were
PostGIS-specific). Do you know of a tool that would tell me which
feature(s) have problems? Do you know of a tool that might be able to
fix these polygons?
Thanks!
Greg
Brent Fraser wrote:
Greg,
It means the
Greg,
It means the GEOS topology library is having problems with geometry of your input
shapefile. Most likely related to duplicate vertices (or near-duplicate) in a polygon.
Do a Google for "side location conflict". It would be nice if it spat out the
FID of the offending polygon...
Bre
Hi Brent,
Thanks for the example. Here's what I got:
Macintosh-4:starspan_tests gregederer$ starspan2 --progress --RID none
--vector
/Users/gregederer/servers/geoserver_data/data/shapefiles/Admin/afadmn2n.shp
--raster rfe_2006_04_pct.tif --stats results.txt avg
starspan: --out-prefix: ?
T
Greg,
I've used StarSpan to do similar things; in my case I wanted "mode" not "avg".
Using v1.2.01 (I don't think I made major mods to the source):
starspan2.exe --progress --RID none --vector boundaries.shp --raster
big.tif --stats results.txt mode
I edited the resulting results.
Hello all,
I'm a GDAL newbie. I have a shape file containing subnational
boundaries for Africa. I have a raster containing rainfall for Africa.
I need to pull out the spatial average of rainfall for each of the
subnational units.
I think that I might be able to pull this off using StarSpa
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