Improve the style of the summary of the function and add note about
surface position message and reference position. Describe reference
position arguments.
Use is None for reference position test as bool(0.0) evaluates to false.
Improve formatting of the error messages in the exceptions raised by the
function (i.e. it seems most of the error messages start with a capital
letter).
Improve the style of the summary of the function and add note about surface position message and reference position. Describe reference position arguments.
Use
is Nonefor reference position test asbool(0.0)evaluates to false.Improve formatting of the error messages in the exceptions raised by the function (i.e. it seems most of the error messages start with a capital letter).