OpenSTAAD member properties for angle/ channel?

[Elite7]

Hi,

I'm trying to write a small program to draw a sketch of some members using OpenSTAAD. While I can get the width and depth of the member along with flange and web thickness, I can't find any function that will return centroid distance for angles and channels. Can anyone help or will I have to link in an externally supplied steel table for this?

Thanks in advance