1. Nicolai Jorgensen said:

Hey Anita. Have you seen this project? http://movevis.org/ It would be interesting to be able to do this in QGIS as well.

• Nicolai said:

Maybe there is not that great a leap towards RSF in QGIS then :)

2. rbenet71 said:

Hi Anita. I do not know if asking you this question here is correct or not, and I apologize if I do not do it correctly.

In your article # 13 “Timestamp labels for trajectories” you showed the track time, but what if you want to see the distance that has been traveled? (showing for example every 10km?).

I have launched this query in Gis Stack Exchange.com. https://gis.stackexchange.com/questions/364736/what-is-the-equivalent-of-arcgis-option-hatching-features-in-a-layer-in-qgis. Thank you for advance.

• Hi, can you share the LineStringM geometry? That would make it easier to try find a solution.

3. rbenet71 said:
• For now, I think your best bet is to use the Points along geometry tool to generate a new point layer that can be labeled. Basically, if the Points along geometry function was available in the Geometry generator functions, we could use it to generate (and label) the points on the fly.

4. rbenet71 said:

Hi Anita, by the moment I don’t know, from Geometry Generator, how to call:

( “processing.run(“native:pointsalonglines”, {‘INPUT’:’\$geometry’,’DISTANCE’:1,’START_OFFSET’:0,’END_OFFSET’:0,’OUTPUT’:’TEMPORARY_OUTPUT’})

By the moment I discover another function, that creates a point in a distance (10km for example):

line_interpolate_point(\$geometry,10000)

If you create for 20km, 30km,… you can have every 10km, but if you want for each km I think it’s a lot of work.

Do you think is possible to create a bucle for do this? Or do you how I call the function “pointsalonglines” from Geometry Generator?

Thank you so much for help and attention.

• I also considered line_interpolate_point() but I don’t see a convenient way to automate it for lines of arbitrary length. I also don’t have an example at hand of how to use a processing algorithm in a expression function (which can then be used in a geometry generator). I recommend asking on gis.stackexchange.com because maybe somebody already has an example at hadn.

5. rbenet71 said:

Thank you so much, I will do.

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