Rasterize 

This node burns vector geometries into a raster

Remove holes 

This node removes holes from polygon geometry

Snap to grid 

This node snaps all points of the input geometry to a regular grid

Proximity 

This node generates a raster proximity

WFS connector 

This node connects to a WFS service and user can select a source from there.

Table Connector 

This is a Database Table Connection Test.TG

Difference 

This node computes difference of geometries