Hi,

I am not aware of a function or of a plugin that does that. I would start by 
googling.  A quick Google search has shown me this python solution. 
https://gis.stackexchange.com/questions/239129/shifting-display-of-overlapping-lines-in-qgis

It was created for an earlier version of QGIS with another version of Python. 
If would need to be adapted.  If this is for a small project (but to big to do 
by hand) you could always just install a QGIS 2.XX version of QGIS in a virtual 
machine to see if it works.

Then, you could ask help to adapt if to QGIS 3x.  Maybe there is a plugin that 
already does this.

Nicolas Cadieux
https://gitlab.com/njacadieux

> Le 11 nov. 2022 à 06:45, Bombonato Antonio Maria 
> <[email protected]> a écrit :
> 
> 
> Thanks Nicolas.
> Unfortunately, the problem is not to identify the overlapping lines.
> I already have a shapefile that identifies the sections with multiple 
> overlapping lines. In this shapefile, for each segment with overlaps, I have 
> the indication of how many overlapping lines there are (at most 3).
> The real problem is to draw the lines without overlappings.
> Any suggestion will be appreciated.
>  
> <image001.png>
> Antonio Maria Bombonato
> Software Developer
> Business Unit Ultra Broadband
> 
> Italtel S.p.A.
> Via Caldera, 21 
> 20153 Milano MI – Italy
> email: [email protected]
> P: +39 024388388
> www.italtel.com
>  
>  
>  
> Da: Nicolas Cadieux <[email protected]> 
> Inviato: martedì 8 novembre 2022 18:40
> A: Bombonato Antonio Maria <[email protected]>; 
> [email protected]
> Oggetto: Re: [Qgis-user] Problem display overlapping lines
>  
> Hi,
> 
> It would be nice to have this QGIS.  My first reaction is to use line offset 
> but the end result is not predictable. You may need to work with Python to do 
> this.  You could also probably create a model. 
> 
> If you need to identify the overlapping segments, you can use my Fix 
> Directional Network model 1 to 3.  You can download this on the plugin page. 
> https://plugins.qgis.org/models/?order_by=-upload_date&&is_gallery=true
> 
> The first model will check the Geometries.  Test with all default values.  
> After running this model, run the second model.  It should identify all 
> partially overlapping lines.  This layer will be called "Potential Problem || 
> Overlapping lines." You can open the second model and look at the "Find 
> overlapping lines" algorithm to see how it's done.   It should find any 
> overlapping or partially overlapping lines.
> 
> This video should help you figure things out. https://youtu.be/v61PafSByvM
> 
> It's not a total solution but it's at least a start!
> 
> Nicolas Cadieux
> 
>  
> 
> Le 2022-11-03 à 3:12 p.m., Bombonato Antonio Maria via Qgis-user a écrit :
> Hello,
> First of all, sorry for my english.
> My name is Antonio Bombonato and it is the first time I ask a question to 
> this mailing list.
>  
> I have a shapefile with multiple routes (each one is identified by an 
> univoque OBJECT_ID) and some are partially overlapped (i.e they share the 
> same segment). I need to display these routes so they are all visible and 
> without overlapping.
>  
> i tryed using line offset but some line still remains overlapped.
> Any idea to solve the problem, possibly using a python script, will be 
> appreciated.
>  
> Attached the starting shapefile (cables) and the desired result I want to 
> obtain (target).
> In this case the shapefile target was created manually moving the vertices of 
> each line.
>  
> P.S. I use 3.16.7-Hannover QGIS version
>  
> Best regards,
> Antonio
>  
> <image001.png>
> Antonio Maria Bombonato
> Software Developer
> Business Unit Ultra Broadband
> 
> Italtel S.p.A.
> Via Caldera, 21 
> 20153 Milano MI – Italy
> email: [email protected]
> P: +39 024388388
> www.italtel.com
>  
>  
>  
> 
> 
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