Feature request #3851
Allow tolerating self-touching rings forming holes as valid
|Pull Request or Patch supplied:||Resolution:|
|Easy fix?:||Copied to github as #:||13909|
Self-touching rings forming holes are invalid as per OGC specifications but are valid for some other common GIS softwares.
GEOS recently introduced a flag to specify whether or not to consider them an invalidity, would be nice to have the same possibility with ftools.