Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

z function returns Nan when used with a 2d point geometry #37772

Closed
DelazJ opened this issue Jul 11, 2020 · 0 comments · Fixed by #38831
Closed

z function returns Nan when used with a 2d point geometry #37772

DelazJ opened this issue Jul 11, 2020 · 0 comments · Fixed by #38831
Assignees
@pblottiere
Labels
Bug Either a bug report, or a bug fix. Let's hope for the latter!

Comments

@DelazJ
Copy link
Contributor

DelazJ commented Jul 11, 2020

In expression builder (I tested the expression preview, I didn't try to calculate values in a field):

  • z_min( geom_from_wkt( 'POINT ( 0 0 )' ) ) returns Null. Same for z_max.
  • z( geom_from_wkt( 'POINT ( 0 0 )' ) ) returns nan
  • z( geom_from_wkt( 'MULTIPOINT ( 0 0 , 1 5)')) returns null

Not sure that nan means a lot to most of us. Could be nice to instead display null.
@DelazJ DelazJ added the Bug Either a bug report, or a bug fix. Let's hope for the latter! label Jul 11, 2020
@pblottiere pblottiere self-assigned this Sep 17, 2020
@pblottiere pblottiere mentioned this issue Sep 17, 2020
Merged
pblottiere added a commit to pblottiere/QGIS that referenced this issue Sep 28, 2020
@pblottiere
Check if a point is 3D before returning its z value. Fixes qgis#37772
d1d1569
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees

@pblottiere pblottiere

Labels
Bug Either a bug report, or a bug fix. Let's hope for the latter!
Projects
None yet
Milestone
No milestone
Development

Successfully merging a pull request may close this issue.

Check if a point is 3D before returning its z value pblottiere/QGIS
2 participants
@DelazJ @pblottiere