QgsVectorLayer::minimumValue and then QgsVectorLayer::maximumValue
when we need BOTH the min and max value for a field, add an
optimised QgsVectorLayer::minimumAndMaximumValue() method
which can calculate both min and max at the same time in
a single iteration.
Potentially halves the cost of calculating these values whenever
we are forced to do a full iteration to calculate them.
When selected, this causes the temporal navigation to step between
all available time ranges from layers in the project.
It's useful when a project contains layers with non-contiguous
available times, e.g. from a WMS-T which images available at
irregular dates, and you want to only step between time ranges
where the next available image is shown.
Refs Natural resources Canada Contract: 3000720707
Unlike the existing methods, this new method does not return
a single overall time range, but rather (possibly with gaps)
containing all time ranges were we know data actually exists
in the project.
Renders a nice cartographically pleasing curved line between the
labels and features.
Options include selecting a specific curve orientation (clockwise
or counterclockwise), or an automatic orientation option which
determines optimal orientation for each individual label. Users
also have control over the amount of curvature applied to the
callout lines.
* fix open form button not always enabled in relation reference widget
when the underlying model has more feature than what the model fetches by default (100),
the feature is not fetched yet when the combobox has its index changed
the new signal allows to be aware when the feature is ready to be used
highlight any pinned callout start or end points
This allows users to immediately see which callouts points have
been manually placed vs are automatically placed.
layers by a preset amount
This allows for the line rendering to trim off the first x mm
and last y mm from the actual line string when drawing the line.
It can be used eg when creating complex symbols where a line layer
should not overlap marker symbol layers placed at the start
and end of the line.
The start/end trim distance supports a range of units, including
percentage of the overall line length, and can be data defined
for extra control.
