[QGIS-Developer] set data defined override expression with python?
r.nijssen at terglobo.nl
Tue Aug 21 23:39:33 PDT 2018
Thank you Nyall! Does exactly what I need. Will add it to the python
On 22-08-18 00:10, Nyall Dawson wrote:
> On Wed, 22 Aug 2018 at 01:41, Raymond Nijssen <r.nijssen at terglobo.nl> wrote:
>> Hi devs!
>> I'd like my python plugin to set an expression for overriding a property
>> and I have no clue how to do so. I expect there must be some generic way
>> to set expressions.
>> Specifically, I want to set the expression for the "Image source" of a
>> QgsLayoutItemPicture to:
>> '/path/to/pictures/' || attribute(@atlas_feature, 'ID') || '.svg'
> property = QgsProperty.fromExpression( "'/path/to/pictures/' ||
> attribute(@atlas_feature, 'ID') || '.svg'")
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