[Qgis-user] Labels not visible when setting them programmatically.

[Werner Macho]

Hi,
does
https://github.com/mach0/qchainage/blob/master/chainagetool.py

line 150 ff help you?

regards
Werner

On Wed, Apr 1, 2015 at 1:25 PM, Casper Børgesen (CABO) <CABO at niras.dk> wrote:
> I’m trying to programmatically set and enable labelling on a layer using
> Python in QGis 2.9.0.
>
>
>
>         label = QgsPalLayerSettings()
>
>         label.readFromLayer(myLayer)
>
>
>
>         label.enabled = True
>
>         label.fieldName = 'myField'
>
>
>
>         # Just to change something clearly visible.
>
>         label.textColor = QColor(255,0,0,255)
>
>
>
>         label.writeToLayer(myLayer)
>
>
>
> This doesn’t enable labelling, but if I enter the Layer Properties on
> myLayer, everything looks okay and when pressing Apply, the labels become
> visible.
>
>
>
> Is there something I need to set to avoid having to manually click Apply to
> get the labels visible?
>
>
>
> Calling iface.mapCanvas().refresh() afterwards doesn’t work.
>
>
>
>
>
> Regards, Casper
>
>
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