Hi list,
I observed a strange thing about v.external. When I crate a link to a shapefile using v.external, it is possible to list all attribute values using the v.db.select-command (on the command line).
However, I was not successful in trying to get the same result inside of QGIS or directly inside the database-backend (I am using sqlite-/sqlitebrowser).
1) sqlitebrowser does not even list the table of the theme created with v.external
2) in QGIS (0.8.0 R2), I can load some (only line and polygon) layers into the map (the geometry is shown), but I do not have access to the attributes - only cat-values are shown.
Therefore, it would be helpful to know, whether this is a bug or not. Any ideas? More than welcome.
Best regards,
Wolfgang
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On 05/02/07 14:19, Wolfgang Qual wrote:
Hi list, I observed a strange thing about v.external. When I crate a
link to a shapefile using v.external, it is possible to list all
attribute values using the v.db.select-command (on the command line).
However, I was not successful in trying to get the same result inside
of QGIS or directly inside the database-backend (I am using
sqlite-/sqlitebrowser).
1) sqlitebrowser does not even list the table of the theme created
with v.external
v.external does not import any data, it just links to it, so any attribute data is in the .dbf file linked to your shapefile, and not in your sqlite database.
2) in QGIS (0.8.0 R2), I can load some (only line and polygon) layers
into the map (the geometry is shown), but I do not have access to the
attributes - only cat-values are shown.
I guess QGIS can only work with "real" GRASS data, i.e. data imported into GRASS, and not data which you only link to with v.external.
Moritz