Move underlay

Moves an underlay without turning or scaling it, so the scan lies over what is drawn. Without a choice it takes the last underlay of the storey, sorted by name; Move in an underlay's row takes that one.

How it works

1. Click a point on the underlay you can find in the drawing, such as a corner of the scan. It snaps to the lines found in the picture. Or drag the underlay, or type @dx,dy to move it by that distance.
2. Click where that point belongs, or type it as x,y or @dx,dy. It snaps to the model, so a corner of the scan lands exactly on a corner of the walls. The underlay follows the pointer until you click.
3. Press Enter to finish. Until then the tool stays on for the next move.