What's the easiest way to draw perpendicular polyline from the center of the circle?
Hi Sarunas, If you want to have a polyline perpendicular to the plane, you can first create a segment and draw the polyline on it.First you define the center of the circle (it seems you already have it, else you can have it easily by measuring a point on the circle with the lock on primitive center option activated):
Then, you create your segment:
Open Model>Modify Geometry
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