I have a data set of unknown origin (probably CAD) and I have determined that the correct transformation for this data into the projection that I want is as follows:
(4x + 2205432), (30y + 1254781)
However, The "Custom Projection" tool is a bit vexing and there is no obvious way for me to enter parameters like this in. I would call this an affine transformation but I don't see that option available.
I've never done this before, can someone tell me how it's done?