Bug report #15667

Add Z/M support to Processing - WAS: "Extract nodes" drops m values

Added by Anita Graser over 7 years ago. Updated almost 7 years ago.

Assignee:Victor Olaya
Affected QGIS version:2.16.3 Regression?:No
Operating System: Easy fix?:No
Pull Request or Patch supplied:No Resolution:fixed/implemented
Crashes QGIS or corrupts data:No Copied to github as #:23590


Processing needs to be updated to support z and m geometry values supported by QGIS core.

For example, result of the "Extract nodes" are just simply XY points.

In contrast the nodes_to_points(geometry, ignore_closing_nodes) function available in expressions does honor m and z values.

Related issues

Related to QGIS Application - Bug report #14659: add geometric columns - no Z coord Closed 2016-04-11


#1 Updated by Alexander Bruy over 7 years ago

Currently Processing does not adopted to support Z/M/ZM values, so all similar algs are affected.

#2 Updated by Anita Graser over 7 years ago

  • Subject changed from Processing "Extract nodes" drops m values to Add Z/M support to Processing - WAS: "Extract nodes" drops m values

#3 Updated by Giovanni Manghi about 7 years ago

  • Easy fix? set to No
  • Regression? set to No

#4 Updated by Nyall Dawson almost 7 years ago

  • Status changed from Open to Closed
  • Description updated (diff)
  • Resolution set to fixed/implemented

Extract nodes is fixed in 1b1dc7de63310369e0a52afe8f6a9b538f36da3c

I think specific reports should be open for other algorithms. Many which rely on GEOS and other libraries will be upstream issues, but there's also other QGIS native ones which we can fix.

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