how do I specify yo use a 'proper' curve and not polyline in a part? (SW2018-19)
what you see is the tesselation of your curve. This the visual representation of your curve. It's always seems to be a polyline, because tesselation breaks down your curve to triangles. You can set the quality (=resolution) higher in the Document Properties / Image Quality higher. But your curve stays a spline (or whatever it is…). So don't mind that much!
Retrieving data ...