Drag onto end node truncates way #3017
Comments
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Author: Koying It looks a tad complicated to reproduce. Would you mind enumerating a step-by-step way to reproduce? |
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Author: tms13 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? |
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Author: Koying Yes, I can reproduce it. Funny thing is that if you save an mdc and reload it before merging, the problem does not occur... |
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Author: koying (In [21518]) FIX : When importing SHP, make sure the same feature is not added |
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Author: tms13 Ah, well fixed. I wondered what was going on... |
Reporter: tms13
[Submitted to the original trac issue database at 12.18pm, Friday, 28th May 2010]
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?
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