Bug report #1201

detect invalid split if splitting line ends in polygon

Added by Marco Hugentobler about 15 years ago. Updated about 14 years ago.

Assignee:Marco Hugentobler
Affected QGIS version: Regression?:No
Operating System:All Easy fix?:No
Pull Request or Patch supplied: Resolution:fixed
Crashes QGIS or corrupts data: Copied to github as #:11261


If a splitting line starts outside a polygon and ends inside it, the user should receive an error message. Instead, a vertex is added where the split line crosses the polygon border.


#1 Updated by Jürgen Fischer about 15 years ago

Are those dangling lines? the geos polygonizer also has a method without C-API for that. If it is, we should propose a function for it, too.

#2 Updated by Marco Hugentobler almost 15 years ago

  • Resolution set to fixed
  • Status changed from Open to Closed

Yes, those are dangling lines and it would be good to have a C-API function for it.
In the meantime, 73c0a754 (SVN r9491) contains a fix for most cases without using the dangling line function of polygonizer. I'm therefore closing this ticket.

#3 Updated by Anonymous about 14 years ago

Milestone Version 1.0.0 deleted

Also available in: Atom PDF