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I've come across an annoying irritation. I have a .SHP converted from MapInfo which consists of a large number of features, a lot of which are made up of a whole heap of combined/multipart polygons. I'm doing a basic edit in deleting nodes. I get down to 2/3 nodes and then it won't let me delete them no matter what I do. The undo/redo indicates nothing is happening. Have tried removing and bringing up again. No issues until the last few nodes - seems to work ok prior, edit, select a number of ways, click node tool, click, click again, goes blue and doesn't do anything. It shivers but that's about it. Any suggestions?

UPDATE: Ahaaa...."After selecting vertices for deletion, click the Delete key. Note that you cannot use the mActionNodeTool Node Tool to delete a complete feature; QGIS will ensure it retains the minimum number of vertices for the feature type you are working on. To delete a complete feature use the mActionDeleteSelected Delete Selected tool."

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  • Have you used the tool Check Geometry in the Vector menu?
    – Willy
    Commented Feb 27, 2014 at 10:40
  • What is largein your case? Maybe this question leads you to use another file format: gis.stackexchange.com/questions/79850/…
    – AndreJ
    Commented Feb 27, 2014 at 11:38
  • Not overly large, about 100 individual line items with a maximum of 30 polygons in some so shouldn't be a problem. Just restarted app and the offending item seems to have disappeared (did try this before). Strange. Will use check geometry next time. I can delete through the table but as they are multi-polys not really an option. Thanks.
    – DirkB
    Commented Feb 27, 2014 at 12:39

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You cannot use the Node Tool to delete a complete feature; QGIS will ensure it retains the minimum number of vertices for the feature type you are working on. To delete a complete feature use the Delete Selected tool."

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