This is a follow up to the previous question I had regarding moving round traces. Once the arc centre has moved, I find it impossible to graphically place the arc centre back on the grid origin. It won’t snap back to the origin, not even remotely:
The only way to place it back on the origin is to find the absolute coordinates of the grid origin and manually inserting those values in the arc property center field. That’s surely not how it supposed to be done.
How to graphically snap the arc centre on to to origin?
The problems is that in the “keep endpoints” mode, the center can only move on the bisection line of the arc. If this doesn’t intersect with the point you want, you won’t be able to set it (try to draw an arc on paper where the distance to from the center to the end points is unequal - you won’t be able to).
Choose the other mode, then pick the arc up by the center point, place that as you want, then move the endpoints to where you want them.
The mode switch is on the right click menu here (and in prefs):
In my opinion you should be able to ‘rotate’ arc ends while preserving arc center and radius.
Such mode is used when you draw arc so I don’t understand why the same mode can’t be used later.
I have written about year ago ‘Feature Request’ about it:
