To delete a node from a polygonal object

Select the object or group of objects to edit.
Select the Delete Node tool ().
Click on any node of a polygonal object.

A node cannot be deleted if it would create a misshapened polygon (less than 3 points, or all points colinear).

Some polygonal objects may define a varying property, e.g. the force constant of an Area Spring. The varying property is defined by seed values of the first 3 nodes of the polygon. Therefore, the first 3 nodes cannot be colinear when the varying property is defined. Adding or deleting nodes does not change the value of the varying property. However, the start of the polygon may have to be shifted to a new node, so that the first 3 nodes are not colinear. The seed values will be adjusted accordingly for the new locations.