Show Open Points 
Show open end points of curves that are not connected to other curves.
The Show Open Points function indicates open contours by marking them with a red circle. This function is useful when it is difficult to detect open edges visually and you need to know which edges need to be closed in order to perform solid operations. Cimatron enables you to work in this mode, showing the open points, at all times, while the Show Open Points tool has been turned on (selected). Toggle the button to turn off this option at any time.
The Show Open Points tool can be used to detect the following cases:
- Show Open Points
- Gap in Contour
- Self-Intersection
- Overlapping Lines
