@jeff hammond said:
...i am (sometimes) able to get the red X depending on my zoom level.. if i zoom out of the scene, i'm more likely to get the intersection snap to an outside object.. if i'm in close to the arc's endpoint, i only seem to get the 'on edge outside active' inference.
My workflow would be:
copy edge (that needs to be intersected) to clipboard.
enter the context where the arc neds to be draw. Then 'Paste in Place' the edge.
draw the arc which now has an edge in the same context to intersect.
delete (one side of) the now divided edge.
Or:
just pre-draw a congruent edge in the same context where the arc needs to be drawn.
draw the arc.
delete (one side of) the now divided edge.
So no messing around with trying to find an intersection with edges in other contexts.
Thanks for the feedback Jeff.