Nyall Dawson b56e86181c [feature][symbology] Add option to control marker clipping for
point pattern fill

A new option exposes the ability to clip markers in the fill by:

- "Clip to shape": default behaviour, same as previous versions. Markers
are clipped so that only the portions inside the polygon are visible
- "Marker centroid within shape": only markers where the center of
the marker falls inside the polygon are drawn, but these markers
won't be clipped to the outside of the polygon
- "Marker Completely Within Shape": only markers which fall
completely within the polygon are shown
- "No clipping": any marker which intersects at all with the polygon
will be completely rendered

The clipping mode can be overridden via a data driven expression if
desired.

Sponsored by North Road, thanks to SLYR

Fixes #37825
2021-10-23 12:58:13 +10:00
..
2021-10-19 08:21:40 +02:00
2021-10-22 10:34:13 +10:00