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Is there a way to calculate and visualize displacement vectors in QGIS ? I have DGPS points taken at the same place (ground control points), but their position moved over time as they are located on a landslide.

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  • Time Manager? plugins.qgis.org/plugins/timemanager – Mapperz Jul 7 '15 at 13:34
  • Timemanager is too limited. It focus on on animation, whereas I want to create a new vector based on the calculated displacement. Thanks anyway. – elise Monsieurs Jul 7 '15 at 13:47
  • Event Layer Plugin? plugins.qgis.org/plugins/event_layer – Mapperz Jul 7 '15 at 15:05
  • If found most suitable up to now Points to Paths spatialgalaxy.net/2011/12/30/… I created an extra column "Mission Id" for the Point order field. The Output is a vector between the points of the same Id, on which I can calculate its length by "vector geometry" The disadvantage is that it only shows 2D displacements, whereas we have 3D DGPS data. Someone who knows a tool for 3D displacement calculation ? – elise Monsieurs Jul 14 '15 at 14:01
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The function Points to Path "converts a point layer to a line layer by joining points in a defined order". It is located in the QGIS processing toolbox > Vector creation menu. (QGIS 3.2).

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