Measurement Units
Patchwork 3D has numerical fields for physical lengths which show the unit the value is expressed in and allow it to be modified.
These measurement units are contextual parameters, so it is possible to use a different unit for each of the following categories:
Geometry (shape of surfaces, placement in the scene, etc.),
Geometric detail (various tolerances: stitching, etc.),
Image (image size, screen size, etc.).
Note
The preferred unit for each category is recorded in the database.