Thanks Nyall!!
With a minimal adjustments this just works:
def temporal_filter_for_layer(layer, canvas):
if canvas.mapSettings().isTemporal():
if not
layer.temporalProperties().isVisibleInTemporalRange(canvas.temporalRange()):
return False # nothing is visible
temporal_context = QgsVectorLayerTemporalContext()
temporal_context.setLayer(layer)
return layer.temporalProperties().createFilterString(temporal_context,
canvas.temporalRange())
else:
return None
print( temporal_filter_for_layer(iface.mapCanvas().currentLayer(),
iface.mapCanvas()) )
Now prints:
("time" > make_datetime(2022,3,20,10,30,0) AND "time" < make_datetime(2022,3,20,12,30,0))
OR "time" IS NULL
Which I can use as expression in: layer.selectByExpression(...)
Regards,
Richard Duivenvoorde
PS also see my Feature Request: https://github.com/qgis/QGIS/issues/47929 about
adding an option to switch between selecting visible vs non visible features...
On 3/21/22 23:59, Nyall Dawson wrote:
Anybody aware of a way to do this?
Going to try to get the temporal expression maybe and then select by
expression?
untested code ported from tested c++ code, sorry, but it's something like this:
def temporal_filter_for_layer(layer, canvas):
if canvas.mapSettings().isTemporal():
if not layer.temporalProperties().isVisibleInTemporalRange(
canvas.temporalRange() ) ):
return "FALSE"; # nothing is visible
temporal_context = QgsVectorLayerTemporalContext()
temporal_context.setLayer( layer )
return layer.temporalProperties().createFilterString(
temporal_context, canvas.temporalRange() )
else:
return None
Nyall
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