ControlPointsVisibility API in JavaScript (ES5) Diagram API control

Defines the visibility of the control points in the Bezier connector

• All - All - Shows all the control points of the Bezier connector
• Intermediate - Intermediate - Shows the intermediate control points
• None - None - Hides all the control points of the Bezier connector
• Source - Source - Shows the source control point
• Target - Target - Shows the target control point