def demo_Arcs_addByThreePoints(sketch: adsk.fusion.Sketch): # Define three points startPoint = adsk.core.Point3D.create(0, 0, 0) alongPoint = adsk.core.Point3D.create(5, 0, 0) endPoint = adsk.core.Point3D.create(8, 7, 0) # Create an arc using three points along the arc. arcs = sketch.sketchCurves.sketchArcs arc = arcs.addByThreePoints(startPoint, alongPoint, endPoint)