This commit adds a virtual method to QgsMapLayer to enable the creation of custom
elevation profiles for any type of layer.
The methods returns a pointer to a helper class of type
QgsAbstractProfileSource which is a factory for profile generators
(cf. documentation for QgsAbstractProfileSource).
Existing layers that derive from QgsAbstractProfileSource just override
this method returning a *this* pointer.
As the method is *sipified* it can be used in python to declare custom
profile source for classes derived from PluginLayer (ownership of the
QgsAbstractProfileSource must then be managed on the python side).
QgsChunkedEntity gets a capability to update an existing sub-entity for a node
by loading the node again, creating a new 3D entity, and then discarding the old
entity in favor of the new one.
QgsPointCloudLayer gets a new signal - emitted whenever a particular node's
attribute values get changed.
These two are combined for point cloud layer's 3D chunked entity: whenever there
are edits to the point cloud data, instead of doing big hard reload of the whole
point cloud, we only update entities of the few nodes that were modified.
This greatly improves the user experience of point cloud editing (no "flashing"
of the 3D view while loading everything from scratch), and it improves how quickly
the changes can be seen.
* Add label rendering into VPC tiles
* Move tile labels rendering into QgsPointCloudExtentRenderer
* Rework showLabels flag once more & connect it to widget
* Add widget for label TextFormat WIP
* Rework and fix text format widget issues
* Improve default text format used in VPC labels
* Fix banned keywords issue
* Fix QgsTextFormat review issue
* Fix labels drawing efficiency issue
* Fix formating issues
* Fix review issues
In this mode, the user can specify a QGIS expression for the
lower and upper value corresponding to raster bands, using
variables like @band, @band_name and @band_description.
E.g
@band * 100
Can be used when each band represents a 100 m vertical slice
of data.
The expression will be evaluated when required to determine
the actual elevation range corresponding to each band.
This differs from the existing "Fixed Elevation Range Per Band"
mode in that "Fixed Elevation Range Per Band" requires users
to manually enter an elevation for each band separately,
and these values are then treated as constants. That mode works
best for rasters with non-regular steps in the band
elevation values, while this new mode is better for regular
band elevation steps
The original workaround was only supposed to apply to QList/
QVector of QVariantMaps. By replacing them all in sip we
break mapping of signals defined in c++ which are emitted
by Python code.
Fixes exceptions after running processing algorithms in Qt6
builds.
And make sipify handle this nicely. This means that all our non-flag
style enums correctly map across to IntFlag python enums on Qt 6,
fixing issues with negative enum values for these and providing
a better match for the original c++ enum.
