Feature request #21284

[Expression] Allow negative value for vertex index in angle_at_vertex/distance_at_vertex/point_n... functions

Added by Harrissou Santanna over 5 years ago. Updated about 5 years ago.

Assignee:Mathieu Pellerin - nIRV
Pull Request or Patch supplied:No Resolution:fixed/implemented
Easy fix?:No Copied to github as #:29102


It could be nice that distance_to_vertex($geometry, -1) returns the length of the feature instead of -1 or point_n($geometry, -1) returns the last node. I know there are special functions for the examples I provide but it's more about generally allowing negative indices in these functions.
It will align them with array manipulations as well as options offered in Processing dialogs (Extract specific vertices eg).

Related issues

Related to QGIS Application - Bug report #21282: [Expression] point_n function should be coherent with oth... Open 2019-02-15


#1 Updated by Harrissou Santanna over 5 years ago

  • Related to Bug report #21282: [Expression] point_n function should be coherent with other vertex based functions and algorithms added

#2 Updated by Mathieu Pellerin - nIRV about 5 years ago

  • Resolution set to fixed/implemented
  • Assignee set to Mathieu Pellerin - nIRV

#3 Updated by Harrissou Santanna about 5 years ago

  • Status changed from Open to Closed

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