This allows users to (optionally!) customise the symbol appearance
for a legend node, e.g. to tweak the colors or symbol sizes to better
provide a "representative" patch symbol compared with how those
corresponding features actually appear on the map.
It's useful for exaggerating symbol widths, or for manually tweaking
the colors of semi-transparent symbols so that the colors represent
the actual appearance of the symbols when rendered on top of the map
content. Or to tweak the marker interval/offset in marker lines so that the
markers are nicely spaced in the legend patch.
Fixes#14077
This refactors and completes the recently added work on random number raster layer creation algorithms (see #35835) and reworks the single algorithm implementation proposed in #36065 to a base-algorithm solution which avoids duplicate code.
With the new algorithms aimed towards distribution based random number creation, QGIS reaches to the same level of functionality as current ArcGIS random raster creation tools. In total, the PR adds the following algorithms (normal and uniform raster layer creation algs are refactored to be in line the new naming scheme):
Create random raster layer (binomial distribution)
Create random raster layer (exponential distribution)
Create random raster layer (gamma distribution)
Create random raster layer (negative binomial distribution)
Create random raster layer (normal distribution)
Create random raster layer (poisson distribution)
Create random raster layer (uniform distribution)
polygons
Options are:
- 'yes': allow placing outside the polygon if needed
- 'no': don't allow outside placements
- 'force': only ever put this label outside the polygon
outside of polygon features when required
When a label can't be placed inside the polygon and this option is checked,
then it will be automatically placed at a nicely selected location
just outside of the polygon
Sponsored by QGIS Swiss user group!
outside of polygon features
Based on a tweaked version of the logic presented by Rylov & Reimer
from "A practical algorithm for the external annotation of area features" (2016),
this placement mode generates a set of label candidates which sit at a
set distance outside of a polygon's exterior ring.
Designed for candidate generation for small polygons wrt label size, or in
other cases where it's not possible or desirable to fit the label inside
the polygon features itself
This test consistently fails, likely revealing a real issue in the server
code (but regardless, a test which fails all the time has no place on
the ci)
