Hi Benoit,
Thank you for your response....
you could use Vectors -> Geometry Tools -> Multipart
to singleparts
yes this solves the problem.
Many thanks
Erica
On 20 Sep 2010, at 12:53, Benoit de Cabissole wrote:
Hi Erica,
Looks like you have a multipart-multilines vector file.
On your PrimaryRd.shp you could use Vectors -> Geometry Tools ->
Multipart
to singleparts
to create individual lines for each of your road sections.
And then used the resulting shapefile to onlt select the roads you
want.
Hope this helps,
Benoit
-----Original Message-----
From: [email protected]
[mailto:[email protected]]on Behalf Of Erica
Donnelly-Swift
Sent: Monday, 20 September 2010 12:35
To: [email protected]
Subject: [Qgis-user] Toggle editing question
Hi all,
I'm working on a road network vector file, however I have encountered
a small issue, and I would be very grateful if you could please offer
some advice, thanks
Q: How can I get QGIS to delete specific sections of road? (And not
delete the whole primary road network)
I worked with this road vector map a few months ago and managed to
select a specific route using toggle editing....I'm unsure why there
seems to be a problem this time.....
I have outlined the steps below
(I'm working on MAC OSX 10.5.8, QGIS version 1.4.0 Enceladus)
1) I have uploaded the roads.shp through QGIS (roads.shp is a file
for a road network)
2) I went into the attributes table and selected the Primary roads
Attribute table contents:
ID RoadType Length
0 Motorway XXXX
1 Primary XXXX
2 Secondary XXXX
3 Regional XXXX
3) I saved the selected primary roads as a PrimaryRd.shp file
4) I loaded this PrimaryRd.shp file into QGIS
5) I selected toggle editing mode, but when I select features - all
roads are highlighted and when I delete.... it deletes all the roads
I think it may possibly be related to the attributes table, but I'm
unsure how to expand this table
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