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I am trying to map flight paths and compare historic paths with current ones (so I later need to perform some calculations as distances between them). For this task I am using QGIS on OSX 10.9.1

As an input, I have the waypoints of every path that I want to connect linear to a line (see picture).

enter image description here

When using the “add delimited text layer” function, I can map the waypoint. However here I am stuck. I already tied the points to path plugin, but I can´t see any line in my map.

I read that it might be possible by transforming the points into a multilinestring in WKT format. Unfortunately, I never worked with WKT files and do not even know how to create them. Also, there is a really long list of waypoints in the actual sample.

All the work should not be done in a “dirty” way (just draw the line), since there are some calculations about distances (e.g. shortest distance between paths, etc) to be performed at the end.

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PointsToPaths works fine for me - in your delimited text file, you probably need to add a column to identify the path and the order of each point within the path (these may not both be necessary - experiment). You may also want to change your decimal point from ',' to '.'.

In the example below I added 'path' and 'order' as columns:

enter image description here

This worked just fine with the example data you posted:

enter image description here

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