[Qgis-user] Toggle editing question

[Benoit de Cabissole]

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: qgis-user-bounces at lists.osgeo.org
> [mailto:qgis-user-bounces at lists.osgeo.org]On Behalf Of Erica
> Donnelly-Swift
> Sent: Monday, 20 September 2010 12:35
> To: qgis-user at lists.osgeo.org
> 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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