There is a way to do marketing. And there isn’t:

What are we trying to do?

ByCoordinateSystems (i.e. the Tekla API method)? AlignCoordinateSystem (the AutoCAD .net API method)? What are they? What do they mean?

The following is what I take out of the book. It is not an exhaustive summary. I add my own ideas where relevant. I have also excluded Tek1 as a case study.

Imagine you had a HTML form with multiple “submit” buttons, and you wanted to programatically submit via a certain button:

The discussion below says it all:

I came across the following in Pagy’s code base: