[Qgis-user] Road graph topological editing

[toxjones at tiscali.it ()]

Hello,

I imported in QGIS 1.5 a line vector layer representing roads (say arcs)
of a city.
I would like to:
- create a new point vector layer with a point for each cross between lines;
- add two columns to the original line vector layer, indicating the
cross before and after each road, respectively.

Any hint?

Thank you very much!
Toni

[Giovanni Manghi]

Post by toxjones at tiscali.it ()
- create a new point vector layer with a point for each cross between lines;

vector -> analysis tools -> line intersections

cheers

-- Giovanni --

[Carson Farmer]

There is a line intersection tool in the Vector menu that might get
you your points: Vector - Analysis Tools - Line Intersections.
Not exactly sure what you mean by your second point though?

Carson

?Hello,
I imported in QGIS 1.5 a line vector layer representing roads (say arcs) of
a city.
- create a new point vector layer with a point for each cross between lines;
- add two columns to the original line vector layer, indicating the cross
before and after each road, respectively.
Any hint?
Thank you very much!
Toni
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