I really would like an tutorial specifically targeted at the Arithmetic Expression Operator. This seems to be very powerful, and since the user bought this plugin for its parametric modelling abilities, mastering this part of the plugin probably can enhance the parametric possibilities of Railclone significantly.
But first, the help-box inside the editor needs to be way more helpful. Now it’s really too basic to get an idea what an variable does. For example, the “XSplineCoords” This is used by the bridge tutorial to size the pillars to the ground. The help about this variable is: “Position over X Spline on local coordinates (vector)”
But how did I supposed to know that XSplineCoords.z gives me just the Z - value? It would really help if this help box gives some basic examples and a list of optional parameters we can use.