Hi @Anonymous,
It's because of the way "DIMORD" works.. it places a point in the origin from from where the coordinates are measured (the origin of the current ucs when you created the dimension), which happens in your case to be the center of the circle..
Try the following:
1- move any of these dimensions by the move command (not grip editing), and select it to see the grips, you'll notice 2 things:
- The readings don't change when using move (because the origin moved with the dim)..
- there is a second grip where the center of the red circle used to be..
- If you grip edit any orf the two points, the readings change.. (because you either moved the origin, or moved the measured point separately this time)
2- Try the command UCS, pick a point for the new ucs, and hhit enter twice to accept the rotation an it is, then try "DIMORD", you'll notice: .
- a new grip where your UCS are..,
- The measurements are taken from that reference point not from the "GWS" or the original UCS..
3- Hit "zoom" extents" and see how the drawing looks.. Now Try UCS, then W to return the ucs to it's original state, and try "DIMORD".. Now try Zoom Extents again, you'll see the drawing became too small and you can see the origin within, thats because "DimOrd has placed a grip..
Notes:
-- That point put in the current UCS disappears after exploding the dim..
-- Beware to not move or modify the dims by accident by selecting their origin (As you were about to do) - it's better to lock their layer for safety if you're finished with them..
-- Beware of the current ucs when placing "DimOrds to net have faulty readings..
-- Beware of copying or moving "DimOrdinates", their value will remain the same as the original because the origin moved with the Dim..
Regards 🙂