[Qgis-developer] Z or M styling in QGIS
regis.haubourg at gmail.com
Sat Apr 29 01:57:05 PDT 2017
Just a followup to this, I filed an issue here 
It seems something is wrong in @geometry_point_num array when zooming at a
level where the geometry is cropped by the canvas extent.
This is the expression doing the work in a line geometry generator on a
marker line symbol:
z(point_n($geometry, at geometry_point_num))
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