[Qgis-user] Creating simple choropleths in Q1.8

[Roy Marsh]

Yes, it's a data type issue.
Qgis imports as text so the data was not visible
I used Field Calculator to convert text to real and suddenly it all worked
I hope a future manual will mention this, as it affects everything
Roy
2012/9/1 Langen Mallya <cutlan at gmail.com>

> Look at the data types its real a numeric in definition.
>  On Sep 1, 2012 12:19 AM, "Roy Marsh" <roymarsh11 at gmail.com> wrote:
> >
> > IN QGIS 1.8 I want to create a simple choropleth to show 5 bands for a
> range of numeric values
> > I open Properties /Style for the vector layer and choose Legend Type
> 'Continuous Colour'
> > This should allow me to group values in a specified field into
> meaningful bands
> > Unfortunately, the 'classification field' box is greyed out in the
> dialogue box, so no existing fields are selectable
> > Strangely, if a new field is created, this becomes one of the selectable
> fields in the 'Classification field' box
> >
> > Surely the system should not behave like this?
> >
> > Roy
> >
> >
> > _______________________________________________
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> > http://lists.osgeo.org/mailman/listinfo/qgis-user
> >
>
>
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