error displaying a curve on creo 2.0

[Virgundo]

Good morning to all,
I have a problem about creating a sweep using creo 2.0.

I would like to create this particular that is not another aluminum profile that then in reality is fallen.
so I proceed like this:

- amount drawing sketch from a .dwg file;
- I open the sweep and create the trajectory that is nothing but a ray;
- and practically as you can see from the photo the curve comes out all spigolosa;
You know where I'm wrong? the error is given to me only if I use it as a display option "shaded with edges" because in case I go to choose another option that is not "shaded" the errors are not there.

Here's the picture.
I thank you and hope I have not broken any rules of the forum.
stefano.

 

[Prof.]

the edges you see are exclusively due to a graphic approximation of the shading.
if you increase the quality of the shading (maximum value 10) you will notice an improvement of the representation.
Bye.

 

[Virgundo]

Thank you very much, sir.
I solved, I realized I have always worked with a shading quality value of 1