How to identify lack of closure in a supposedly closed contour

Hello all,
When I draw profiles for later CAM machining I mostly intend to draw closed contours. However sometimes due to manual mistakes the contour is not closed.
It may be difficult to find where the loop closure is missing.
The only method I know to locate a potential gap is to draw a hatch: the hatch algorithm returns the XY coords of the interruption that leaves the contour open. However to highlight exactly where the point is one needs then to manually draw a point or another entity at those coords, copying the coordinates manually. Is there another way request to highlight lack of loop closures, that also draws a circle or other pointing object to represent where the problem is ?

thank you

Hi,

One possibility is to double click near an entity of the contour.
All connected will be selected.

Another option is to create a polyline from a selection with OC.
If that is logically closed then all is fine.
Otherwise the polyline will end somewhere.
The end may almost coincide with the start.

The red marker is the start vertex, a polyline ends in a blue marker.

Both methods have a tolerance setting.
Use a tight tolerance to find discontinuities.

Regards,
CVH

Thank you for the tim, I will try those!