[QGIS-Developer] Problem with Algorithm Shortest Path (Point To Layer)

Bauer.Josef at swm.de Bauer.Josef at swm.de
Thu Feb 27 05:17:12 PST 2020


Dear all,

in our current project, we use the processing network analysis algorithm "Shortest path (Point To Layer)".

Unfortunately, since we updated to Version 3.10.3 this algorithm calculates different results then we got with version 3.4.13.

We have round about 700 point objects in the layer we are operating on and with version 3.4.13 we get 50 objects with cost "NULL" (because the start point is set to NULL), with version 3.10.3 we get about 150 objects with cost "NULL".

That's why we get different objects as a final result with the shortest path.

The layers are exactly the same in both versions because we are operating on the same database.

Unfortunately, we cannot publish those layers without editing them.

We hope that someone is familiar with this challenge and able to help us :).

Best regards
Josef

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