QGIS/tests/testdata/control_images/expected_arrowsymbollayer_4
Patrick Valsecchi 5ee97adc16 Add heuristic to not simplify geometries for nothing
Tested with a release binary and Swiss OSM roads in PostGIS at several zoom
levels (the higher, the less features), values in ms (average over at
least 100 queries):

Level | Before | After | % improvement
-------------------------------------------
7     |  37    |  36   | 2.7
6     |  41    |  38   | 7.32
5     |  48    |  46   | 4.17
4     |  70    |  64   | 8.57
3     | 114    | 109   | 4.39

Not much improvement (I'm quite dispointed, here), but not much change in
the code.
2016-08-16 12:48:35 +02:00
..