Dear Prof.Agustin,
To the problem u have faced,i have one suggestion for it..If u have
polyline objects in one table,say "A" and point objects in another
table,say "B",u can try using the following query,
Select * from A,B where A.obj intersects B.obj
The above query will work for polyline vs point ,line vs point but it will
not work for
arcs vs point.To do so for arcs,convert arcs into polyline and do the same
query..
Hope it solves ur problem..
Luv,
deva.
Tata Infotech Ltd.
India.
> At 10:53 1.3.1999 +0100, you wrote:
> >Hi everybody,
> >
> >I have two lists:
> >- list A are polylines (land cover boundaries)
> >- list B are points (codes for the land cover characteristics, these
points
> are located in the same position as the centroids of polylines from list
A)
> >
> >I nee to select the polylines from attributes in the points list. I was
> using SQL, selecting the B.obj's that contain A.obj's with the desired
> attributes. The results: no element was selected. I believe no elements
were
> returned because polylines are "open" and not contain anything.
> >
> >Does anybody knows how I can select these polylines based on points
attributes?
> >
> >Thanks for your help.
> >
> >Agustin
> >______________________________________
> >Prof. Agustin Estrada-Pena
> >Dept. of Animal Pathology (Parasitology)
> >University of Zaragoza (Spain)
> >
> >
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