I am digitizing a new polygon shapefile of property boundaries based on orthoimagery using QGIS Zanzibar. I'm acquainted with topology editing in ArcMap using geodatabases. I did so with snapping to vertices and segments enabled.
Using the Topology Checker Plugin in QGIS 3.8 Zanzibar and in 3.6 Noosa I can identify digitizing errors such as gaps and overlaps.
However when attempting to use
v.clean in the Processing window I keep running into the following errors:
WARNING: Concurrent mapset locking is not supported on Windows WARNING: Column 'id' : type int8 (bigint) is stored as integer (4 bytes) some data may be damaged WARNING: Column 'id' : type int8 (bigint) is stored as integer (4 bytes) some data may be damaged WARNING: Unable to create index WARNING: Unable to copy table <Block_6_Parcels_Test> for layer 1 from <vector_5d9f8b040caf72@PERMANENT> to <output39ece58e87d34cfa8e0b689616f7aafc> WARNING: Failed to copy attribute table to output vector map WARNING: Number of centroids exceeds number of areas: 7 > 5 WARNING: Number of incorrect boundaries: 2 WARNING: Number of centroids outside area: 2 ERROR: Key column <> not found WARNING: No areas found, but requested to be exported. Will skip this feature type. WARNING: No attribute table found -> using only category numbers as attributes WARNING: Output layer is empty, no features written
I have two fields that could be used as key fields, either the id column that is the default generated first column when you create a new shapefile, or the PARCEL_ID. Both are created as
@row_number in field calculator. Both are populated.
I've tried just doing one error rule at a time (i.e. fixing gaps first with v.clean only, then fixing overlaps with v.clean) but both fail. I've tested this in both 3.6 Noosa and 3.8 Zanzibar.
How should I go about fixing my topology? A link to the shapefile https://www117.zippyshare.com/v/vhZODckl/file.html