Just out of curiosity: What is MR and RC ???

Am 19.05.2015, 12:42 Uhr, schrieb McDonaldR <[email protected]>:


Hello List

I have a process that works perfectly in Brighton 2.6.1 but is broken in Wien 2.8.2.

I have two Postgis polygon layers loaded in QGIS – MR and RC.

I copy some polygons from Ordnance Survey MasterMap Topography layer and paste into a >memory layer. In the memory layer the polygons are merged and edited until correct. Then >this new polygon is copied into MR (there are three mandatory fields which have to be >filled at this point). When I save my MR edits a series of triggers in the database update >various fields (area, x, y, centroids, etc). Then I copy the new feature(s) in MR and >paste into RC. Polygons are merged if required. Again, a series of triggers on the RC >table update some fields.

There are three processes that throw errors in 2.8.2

1. Selecting a polygon in MR and using the node tool to edit and move nodes fails with a >“could not snap to feature in current layer” error. QGIS will crash with data written >to a minidump file after selecting node tool, selecting a node and dragging it. Crash >on release.

2. Selecting overlapping polygons in MR and RC and using the “cut with polygon from >another layer” tool to cut RC with MR. That returns the error below:

An error has occured while executing Python code:

Traceback (most recent call last):
File "C:\Users\me\.qgis2\python\plugins\DigitizingTools\tools\dtcutter.py", line 94, >in process
   bbox = cutterGeom.boundingBox()
AttributeError: 'NoneType' object has no attribute 'boundingBox'


Python version:
2.7.4 (default, Apr  6 2013, 19:54:46) [MSC v.1500 32 bit (Intel)]

QGIS version:
2.8.2-Wien Wien, 1b929ef


3. Pasting from MR into RC does not carry over attributes (the field names are the same) >and the triggers don’t run on the RC table.

While this is very probably user specific we’d appreciate any suggestions.


Thanks in advance


Ross





Ross McDonald | GIS Data Coordinator | Resources Department, IT Division | Angus Council, >Angus House, Orchardbank Business Park, Forfar, DD8 1AT

T: 01307 476419 | F: 01307 476401 | E: [email protected]

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