Loon's plots are constructed in TCL and identified with a path string appearing in the window containing the plot. The path string begins with a unique identifier for the plot and ends with a suffix describing the type of loon plot being displayed.
The path identifying the plot is the string concatenation of both the identifier and the type.
This function returns the set of the base (non-compound) loon path types.
l_basePaths()
character vector of the base path types.