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Why is spline jagged and not smooth?
Long story short, I just opened onshape and I am building a fully parametric wing. I've done this on many CAD programs. I use 9 specific segments all parametric driven by the chord length. I then make a spline for the top and bottom surface connecting each point. Then I used a bridge curve or whatever I have to to get a proper nose shape.
When doing this in Onshape I am getting a jagged and not smooth spline. The strange thing is if I grab the tangent handle at the end of a spline and hold down the left mouse button the spline will smooth itself out. I thought this might be a visual thing where it is only when zoomed it, but I extruded the surface as a quick test and it is a poor surface. I'm I doing something wrong?
Also is there any tool to visually inspect the surface quality of a swept sheet?
Attached is a picture where you can see in Fig 1 the airfoil profile build out, then in Fig 2 you can see the jagged splines, then in Fig 3 you can see while holding down the handle point the spline smooths out...but once you release that it snaps back to a jagged spline.