The Diameter command reports the diameter of a curve at a specified point.
Pick locations on a curve.
Note: The Center object snap is ignored if it is on.
Limit the selection to a specified curve.
Press Enter to select any curve.
Places a point object at the evaluated point on a curve and creates a curvature circle through that point.
Rhinoceros 5 © 2010-2015 Robert McNeel & Associates. 17-Sep-2015
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