Hi, there are several surfaces and polysurfaces. I am trying to use following commands for them: “join”, “mergeallfaces” and after that I am trying to change the units to millimeter. As you can see in the picture Rhino destroies the geometry after using the first two mentioned commands.
Hello - the model is much too small for the units setting, that is most likely what is going on here, combined with a file tolerance that is really far too large.
Yeah - that is not enough - the objects were built at a very small scale ande a large tolerance, so edges are a mess; furthermore, if you change the unsts and scale the objects, they move even farther from the origin.
Point in world coordinates = 475146338.518, 5524641771.209, 26.308