How to add a node/vertex in a QGIS edit session?

Question

I'm doing some polygon (boundary) cleanup, and am wondering if it is possible to add a node/vertex to a set of selected polygons or even a single polygon.

By the way, the QGIS topology editing tools are incredible - extremely simple but very accurate and take so much of the work away from doing such manual work.

QGIS gives the ability to remove selected nodes - amazing that the topology is preserved and even improved when cleaning up excess nodes. Great stuff!

zoom to that line you will see a cross click on that and vertex wil be added — Shahrukh Shaikh, Nov 21 '19 at 12:27
Yes did it and gave me right. In fact am using qgis 2.18.27 version. Thanks for upgrading me — Mustapha Alkali, Mar 02 '20 at 09:39

score 30 · Accepted Answer · edited Aug 18 '18 at 20:48

30

With the Node tool (called the Vertex Editor in QGIS 3.0+) selected, simply double-click on a line segment you want to add a node to

edited Aug 18 '18 at 20:48

Will

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answered Jun 15 '16 at 20:56

HDunn

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is there a way to add multiple vertices without having to double-click every time? – NicoH Apr 27 '18 at 09:37
@NicoH Not as an edit session, but algorithmically, with tools like densify https://docs.qgis.org/2.8/en/docs/user_manual/processing_algs/qgis/vector_geometry_tools/densifygeometries.html – HDunn Apr 28 '18 at 14:32
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Note QGIS3's Vertex Editor (called the node tool in QGIS2) has notable differences in its function compared to qgis 2 - https://gis.stackexchange.com/questions/278217/how-does-the-qgis3-vertex-editor-work – Will Aug 18 '18 at 20:46

score 2 · Answer 2 · edited Sep 06 '19 at 07:34

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If you're having trouble getting the little cross to pop up on the segment you want to add the node to, check your snapping tolerances. Mine were too high, making it impossible to get it on shorter segments. Go to settings > options > digitizing > snapping > "search radius for vertex edits" and set it to something like 10 pixels. Mine was set to 100 map units because I am silly.

edited Sep 06 '19 at 07:34

Jochen Schwarze

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answered Sep 06 '19 at 01:00

Ryan Anderson

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score 1 · Answer 3 · answered May 31 '18 at 12:52

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To add to that, to delete a vertex, you will just need to select the point and hit the delete key on the keyboard.

answered May 31 '18 at 12:52

Harry

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score 0 · Answer 4 · answered Oct 20 '20 at 14:44

Please note that if in your Settings->Options, if the Snapping is set too large than the snapping feature will override you ability to find the cross for the add-vertex. I went in and made mine small so that it would only snap when really close to a vertex.

How to add a node/vertex in a QGIS edit session?

4 Answers4