Table Connector 

This is a Database Table Connection Test.TG

WFS connector 

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

Polygon to line 

This nodes finds lines of a polygon geometry

Snap to grid 

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

Vertices to points 

Converts the vertices of geometry to points

Line merge 

This node merges a collection of lines into a single line

Minimum bounding rectangle 

This nodes returns the minimum bounding rectangle of a geometry