Opened 10 years ago

Closed 10 years ago

Last modified 10 years ago

#3017 closed defect (fixed)

Drag onto end node truncates way

Reported by: Toby Speight Owned by: Chris Browet
Priority: major Milestone:
Component: merkaartor Version:
Keywords: Cc:


If I drag a node (real or virtual) onto the start or end node of a way (for example, I've imported a side road, and I'm shifting the main road to meet it at the T-junction) and answer Yes to have Merkaartor merge the nodes, then the end node becomes detached from the original way, so that the two ways are not joined.

If I select the end node in question, and then select the node to merge, and use the Merge Nodes command, then I get a junction as I expect. So it's specific to dragging nodes.

If I drag a node onto a non-terminal node of the way, then I get a crossroads as I expect. So it's specific to start and end nodes.

The bug doesn't occur with ways I draw myself, so I wonder if it's something to do with the target node originating as a junction in the shapefile from which I've forced its upload? And therefore nothing to do with it being at the end?

Any ideas?

Attachments (1)

NG37-extract.tar.gz (955 bytes) - added by Toby Speight 10 years ago.

Download all attachments as: .zip

Change History (6)

comment:1 Changed 10 years ago by Chris Browet

Owner: changed from cbro@… to Chris Browet
Status: newassigned

It looks a tad complicated to reproduce.

Would you mind enumerating a step-by-step way to reproduce?

Changed 10 years ago by Toby Speight

Attachment: NG37-extract.tar.gz added

comment:2 Changed 10 years ago by Toby Speight

I've attached a shape file extract from OS OpenData? NG37; if you load that you'll see a crossroads. Download OSM data - there's a minor road that's asking to be surveyed. If you now drag a node of that minor road onto the crossroad node, and say yes to merge the nodes, you'll see parts of all the shapefile ways disappear.

Is that reproducible for you?

comment:3 Changed 10 years ago by Chris Browet

Yes, I can reproduce it.

Funny thing is that if you save an mdc and reload it before merging, the problem does not occur...

comment:4 Changed 10 years ago by Chris Browet

Resolution: fixed
Status: assignedclosed

(In [21518]) FIX : When importing SHP, make sure the same feature is not added multiple times to the layer (fixes #3017)

comment:5 Changed 10 years ago by Toby Speight

Ah, well fixed. I wondered what was going on...

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