<br>See<br><a href="http://www.vtk.org/doc/release/5.4/html/a00815.html#292158a26416f4ad425e93910b9ba168">http://www.vtk.org/doc/release/5.4/html/a00815.html#292158a26416f4ad425e93910b9ba168</a><br><br>The documentation says nothing more than the method name. That is, it's not really informative, it resolves no uncertainty about how the method works or it's inputs than the method name itself. It says nothing about the units of measurement and there are no references to any other method to define such units of measurement.<br>
<br>How is this method to be understood, given this documentation alone?<br><br>Take care, Darren<br><br>