means when the line anchor is < 25% then it will be matched to the
start of the text, when the line anchor is > 75% it will be matched
to the end of the text, otherwise match to center of text
middle or end) of line labels corresponds to the anchor position
Previously labels would always be centered over the anchor position
of lines (unless it was a curved label, in which case it was the
start of the lable!) This is limiting (and inconsistent) for some
placements, where it is preferable to e.g. line up the end
of the label text with a specific point on the line
clipped before their anchor points are calculated
The previous behavior was to always use only the visible part
of the line when calculating the anchor point for labels. Now,
users have the option to choose "Use Entire Line" when setting
the label anchor point for lines, so that the entire line
feature is considered when calculating the point to place
the label instead of just the visible part of the line.
Sponsored by Stadt Zürich
anchor point for line labels is a hint or a strict requirement
Strict: Labels are placed exactly on the label anchor only, and no
other fallback placements are permitted.
Hint: The label anchor is treated as a hint for the preferred label
placement, but other placements close to the anchor point are permitted.
