Hi Dubravka you should be okay with the example you provided ... the ATTR1
will need to be the geometry attribute for the data you are working with.
The table view does not show geometry attributes it is true; to figure out
the name...
- open up the default feature editor
- click on properties for the layer (or catalog entry) and look at the
description of the feature type
What we cannot do at this time is a "join" between two layers...
When we get a working example sorted out we can add it to this page:
http://udig.refractions.net/confluence/display/EN/Selection+using+CQL
Note if you are using shapefiles the attribute is often called THE_GEOM
... giving us DWITH( THE_GEOM, POINT(135.12,48.26), 0.1, km )
I am not sure if it actually pays attention to the km part ... we will
have to check.
Jody
Dubravka Boskovic wrote:
Hi,
How can I perform query such as: which objects are within specified
distance (e.g. 10km) from a certain point? I tried CQL expression in
Table view in the form of DWITHIN(ATTR1, POINT(X Y), Z, kilometers), but
the geometry attribute of the object does not exist in Table view, so the
query returns nothing. Similar thing happened with other operators. Is it
possible to perform spatial query to select objects from the table that
are in some spatial relationship with a given object?
Dubravka
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