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I'm drawing a track where I want to place icons (point symbols), but with an offset so that the line is fully visible. Here is an example: track with offset icons

The origin is exactly on the track, therefore when zooming in and out the icons stay in a reasonable position. So far,so good.

What I need, though, is to connect the edge of the icon to the original point on the track using a line or arrow. I need this to indicate where exactly is the danger point (that is what the exclamation mark icon stands for)

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Use Geometry Generator

Use the Geometry Generator tool with the following expression:

make_line(make_point($x,$y),make_point( "auxiliary_storage_labeling_positionx" , "auxiliary_storage_labeling_positiony"))

Then you can freely move your labels around.

Geometry Generator

Explanation

One end of the line will stick to the coordinates of the original point (the make_point($x,$y) part of the generator), while the other end will be drawn at the coordinates of the moved label (i.e. at the ( "auxiliary_storage_labeling_positionx" , "auxiliary_storage_labeling_positiony") coordinates).

enter image description here

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  • Following this howto I was able to create labels with lines pointing from the original position to the offset position. Problem is that I need this for an SVG marker. The first part make_point($x,$y) works, but I need to replace the "auxiliary_storage_labeling_positionx" and "auxiliary_storage_labeling_positiony" with the marker offset. How do I access the offset values (x,y) for a SVG marker? – Asen Christov Feb 15 at 18:50

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