I have two complex surfaces; the smaller surface is a subset of the larger surface. I want to find the correct rotation/translation which causes the two surfaces to stack perfectly. I’ve done the very best I can by eye, but there is always some very small misalignment between the two surfaces.
Some context for this problem: way back when I began a site plan, I brought in location terrain data. The location terrain has since been rotated and translated (but never scaled). I now would like to bring in more terrain data (the same location, but a larger extent), and align the new terrain perfectly to the old one, so that all the elements of my site plan remain where they should be.