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

What problem does it solve?

Suppose I say to someone:

• There is a letter box in my house.
• I want that letter box placed in the same relative position, in all the houses in the country.

How would this be done?

By aligning coordinate systems.

But it can be confusing. Here’s how I think about it.

Consider both examples: