Non-circular arcs (with different axes)Sometimes non-circular arcs exist in a design while standards requireall arcs to be circular.One example of how such non-circular arcs can be created is whenexporting a 3D file with arcs with varying elevations to 2D.
Drop B-spline Curve to ArcsYou can approximate the arcs with circular arcs using the Drop B-splineCurve tool:1. Choose the attributes (Level, Color, etc.) you want to use for thenew arcs.2. From the Modify Curves tool box, choose the Drop B-spline Curve tool.- Keep Original: ON (not necessary, but advisable)- Drop To: Arcs- Method: Max Chord Height- Height: your tolerance (this is the maximum distance between theexisting arcs and the new ones)3. Optionally locate one or two elements to check the results.4. Select, e.g. with the Power Selector, all the arcs you want toapproximate.5. Choose the Drop B-spline Curve tool again. This will create new arcsfor all the selected ones.