Usage:
layer.setCustomProperty('rendering/renderAboveLabels', True)
This is exposed only as a layer custom property since it's really just
exposing some private internals of the rendering map composition. It's
not supported outside of canvas, and only works when parallel rendering
with render cache is enabled.
It's not exposed anywhere in GUI for this same reason. Consider it a
hidden API call until someone implements proper handling of mixed
layer/label stacking order.
If you have a layer with an unknown CRS, this algorithm gives a list
of possible candidate CRSes which the layer could be in.
It allows users to set the area (and corresponding CRS) which they know
the layer should be located near. The algorithm then tests every CRS
in the database to see what candidate CRSes would cause the layer
to be located at that preset area.
It's much faster than it sounds!! (just a couple of seconds)
Sponsored by SMEC/Surbana Jurong
This allows users to set a timer interval in layer properties
for individual layers. These layers will be automatically refreshed
at a matching interval.
Canvas updates are deferred in order to avoid refreshing multiple
times if more than one layer has an auto update interval set.
Additionally, logic has been added to skip any auto redraws of
the canvas while the canvas is already being redrawn. This avoids
issues caused by setting a layer auto refresh to a shorter time than
is required to redraw the canvas.
By calling QgsMapLayer::triggerRepaint( true ) any cached
version of the layer will be invalidated, but a map canvas
refresh won't automatically be triggered
This allows invalidation of cached images while deferring
the actual map update until the next canvas refresh.
Qt5 allows runtime detection of touch devices. This commit reworks
the current touch map tool by pulling its behavior into the normal
pan tool when a touch device is detected.
It avoids the need for a seperate map tool for touch interaction,
and also avoids having this tool always appear on the Windows
builds (regardless of the presence of a touch device)
