it could be that your field is a string, try copying it to another
field as an Integer, using the field calculator.
Etienne
On Tue, Jan 8, 2013 at 9:56 AM, G.T.C.vandenBerg
wrote:
> Hello,
>
>
> I had planned to use the QGIS-plugin 'Contour' from the Official QGIS repo
> to create a contourline-
Hello,
I had planned to use the QGIS-plugin 'Contour' from the Official QGIS repo
to create a contourline-shapefile from a point-shapefile. My point-shapefile
has 1 column ('z') in which represents the altitude of the points. However,
when I click the plugin-button I get the following message:
