Physical properties of a vertex for problems of current flow.
Details
The LabelVertexCF object represents physical data applicable to the vertex label for
current flow analysis problems.
When you need to set or modify physical parameters for the block label, you have to get the LabelVertexCFobject using the Content property of the Label object, modify the LabelVertexCFobject using
its properties and then put it back in the Label object assigning your LabelVertexCF
to the Content property of your Label object.
The LabelVertexCF object inherits methods and properties from its base class LabelVertex. Here the LabelVertex's properties take the
following meaning:
Sets and gets the known value of the external current density at the vertex.
The current density specified at a point of the xy-plane corresponds to a knife-edge current
collector, which is perpendicular to the plane of the model, and is described by the linear
current density. In the axisymmetric case, the vertex source represents a circular collector
around the axis of symmetry or a point collector located on the axis. To incorporate both these
cases, a total current value is associated with the vertex. For the circular knife-edge
collector the total current value is connected with its linear density by the relationship
I = 2pr×s.