Feature request #19403

identify interpolate between measures

Added by Gavin Fleming over 2 years ago. Updated about 2 years ago.

Status:Closed
Priority:Normal
Assignee:-
Category:Geometry
Pull Request or Patch supplied:Yes Resolution:
Easy fix?:No Copied to github as #:27231

Description

If a line has geometry with M values, Identify currently shows 'closest vertex M' as a derived value in the Identify panel. It should however also be showing the interpolated measure, which it no longer does. See https://github.com/blazek/lrs/issues/24#issuecomment-404443408

Associated revisions

Revision 3f9ea774
Added by Nyall Dawson about 2 years ago

Resurrect display of interpolated z/m in identify results, and
add closest point x/y (closest point on geometry)

Add tests

Fixes #19403

Revision b58849f3
Added by Nyall Dawson about 2 years ago

Resurrect display of interpolated z/m in identify results, and
add closest point x/y (closest point on geometry)

Add tests

Fixes #19403

(cherry-picked from 3f9ea774c)

History

#1 Updated by Nyall Dawson over 2 years ago

  • Tracker changed from Bug report to Feature request
  • Subject changed from identify no longer interpolates between measures to identify interpolate between measures

Qgis has never interpolated z/m for the identify tool - maybe this was a plugin implementing it.

#2 Updated by Radim Blazek about 2 years ago

It was working. I implemented interpolated measure in identify tool here: https://github.com/qgis/QGIS/commit/5c6e794b2d57e as replacement of that functionality in LRS plugin, when M became supported by QGIS core in 3.x. Note "Closest point M" and QgsGeometryUtils::closestPointMeasure() in the commit.

#3 Updated by Nyall Dawson about 2 years ago

  • Status changed from Open to In Progress
  • Pull Request or Patch supplied changed from No to Yes

#4 Updated by Nyall Dawson about 2 years ago

  • Status changed from In Progress to Closed
  • % Done changed from 0 to 100

#5 Updated by Radim Blazek about 2 years ago

Thanks for quick resolution.

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