QEP 62: Curved labels improvements about qgis-enhancement-proposals HOT 10 OPEN

@dakcarto Any comments on this QEP ?

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Small updates to the text and illustrations.

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@mhugo Sorry - I really thought I'd replied to this weeks ago! Anyway, +1 to both proposals.

One follow up question (non-blocking):

• should the anchor point for curved labels respect the text alignment? ie can i put a anchor point for the end or middle of the text?

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@nyalldawson no problem and thanks for your feedback ! :)
Indeed, it makes sense to respect the text alignment for anchor points. The computation of candidate glyph boxes would have to be done in different directions: from the anchor point to the right, or from the anchor to the left or from the anchor to both left and right.

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@mhugo - about the label anchor point. I wonder if this could event be taken one step further - that the labeling algorithm could analyze the line geometry and find out long-enough sections in the line string with minimal curvature - so that the user doesn't have to manually propose the anchor points, but the algorithm would do that. The user could still overwrite the positions if he wants to take full control on the anchor points.

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@andreasneumann That may be an nice option to have, indeed. I'll add it to the text, thanks

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a related improvement to curved labels and any line labeling option would be to allow to label lines from start or endpoint. See https://issues.qgis.org/issues/20847. It seems definitly doable according to @nyalldawson 's insights.

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Can't seem to move a curved line label without it becoming aligned as a horizontal line. Of course I can then rotate it but how due I get it formatted as a curved label in the new position? What am I missing?

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What am I missing?

@wtc1909 qgis/QGIS#33374

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Label anchoring helps the label position however in 3.18 implementation it considers the visible portion of the line, and not the entire line.
It would be nice to have an option to choose between the entire line or the visible line.

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