Nik Go wrote:
Hello. Happy new year to all.
I have a shapefile of cities, is it possible to do the following in QGIS
* determine and visually display all cities with attribute "x" or "y"
Yes, in version 1.4 we now have, on the Layer->Properties->General tab a
"Subset" windows and "Query builder" button to create a subset of the
vector layer by attribute column.
For the other two questions I don't know of a simple answer in QGIS. The
GRASS module "v.to.db option=sides" would do it, but you'd need a
topologically correct vector layer.
* find out if the "x" cities share a border with other "x" cities
o if they do, I want to add an attribute to the database
indicating it as a neighbor of another "x" city
* find out if the "y" cities share a border with other "y" cities
o if they do, I want to add an attribute to the database
indicating it as a neighbor of another "y" city
Thank you and regards.
Nik
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