Bug report #17778

TIN interpolation creates artifacts

Added by Shan Cross over 3 years ago. Updated about 3 years ago.

Affected QGIS version:2.18.15 Regression?:No
Operating System:Windows 7 Easy fix?:No
Pull Request or Patch supplied:No Resolution:not reproducable
Crashes QGIS or corrupts data:No Copied to github as #:25674


Using TIN Interpolation (Raster > Interpolation > TIN), my raster that was output contains artifacts
Horizontal grid like lines/stripes (approx 8000m apart from each other)

Data is 20m x 20m grid of points. Happens with any data.
Cannot provide sample data (government data).

TINissue1.JPG - zoom of issue (99.4 KB) Shan Cross, 2018-01-03 05:22 PM

TINissue2.JPG - zoom of issue2 (58.2 KB) Shan Cross, 2018-01-03 05:23 PM


#1 Updated by Saber Razmjooei over 3 years ago

  • Priority changed from High to Normal
  • Category changed from Analysis library to GDAL Tools

#2 Updated by Alexander Bruy over 3 years ago

  • Status changed from Open to Feedback
  • Category changed from GDAL Tools to Unknown

Does this happen when using gdal directly from the command line? Probably this is not QGIS issue and should be reported in the GDAL bugtracker.

#3 Updated by Giovanni Manghi about 3 years ago

  • Resolution set to not reproducable
  • Status changed from Feedback to Closed

Closing for lack of feedback.

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