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Working Layers allow you to edit the geometry of vector elements. There are three types:

  • Drawing Layer: is a temporary layer for the drawing and measurement of all kinds of geometric elements, its contents are lost at the end of the session unless saved as a KML file.
  • Layers of Entities: each one allows to edit one of the types of elements of uThings capable of having geometry (Administrative Units, Instruments, Entities, Relationships or Documents). Its elements are always extracted and saved in the uThings database.
  • Outer layers: layers are imported from vector files (wkt, shp, kml, gml …) or vector services (wfs, PostGIS, ArcGis, Oracle Spatial …).

Graphical operations are performed using the Drawing Tools in the Tools Panel.