* @param vertex picked vertex, can be null in which case the method will return null.
* @return Erlang coverage data for the supplied vertex.
*/
public ErlangCoverageData getCoverageFromPickedVertex(CmpVertex vertex)
{
ErlangCoverageData result = null;
LearnerGraphND gr = graphsOrig.get(currentGraph);
if (vertex != null)
result = gr.getCache().getErlangCoverage().get(vertex);
return result;
}