Posts related to the tag topology
Geographic Information System
When I convert CAD data into GIS format the first thing I do is a topological check. It is important because in this way I can identify the open polylines that I will certainly generate
Geographic Information System
Learn how to fix geometry with Self-intersection errors in PostGIS using functions like ST_MakeValid, ST_IsValid, and more. A practical guide to ensuring correct topologies in your GIS data.
Geographic Information System
How to eliminate duplicates in a linear vector using SQL and the Topology Checker plugin in QGIS. A practical case with OSM and PostGIS hydrographic data.
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