Radius of a Parabola

[nkpham]

I need to create a parabolic trajectory. I have the equation of the parabola, but Pro E requires the radius. Does anyone know how to calculate that radius given the equation of the parabola?

 

[kvision]

There is no RADIUS for a parabola. If you are using the CONIC arc in sketcher you do need a RHO parameter.

A RHO of .5 means a parabolic arc.

See more here

http://www.kinetivision.com/images/def_rho_fin.gif



Good luck!

 

[nkpham]

Thank you for your response. I was wondering what that parameter meant. I know that parabolas have no radii, so I didn't know what they were asking for. I actually found out that I can directly enter the parabolic equation parametrically, which is what I ended up doing.