Ref. Geometry  >> Create >> Torus > Pick Boundary Points

• Ref.Geometry >> Create >> Torus > Pick Boundary Points command fit picked points into Ref.Torus . 

 Step   

Execute Ref.Geometry >> Create >> Torus > Fit Region: as follow

1. Select Ref.Geometry >> Create >> Torus > Fit Region from the menu or click the icon from the reference toolbar.

2. Pick several points in rounded region like below figure. 

During picking points,  User can select point entity on RMB menu as below fig.

 

Point : Any point on polygon face

Vertex : Scanned point

Ref.Point : User made Ref.Point 

Point On Surface : any point on NURBS surface

Point On Curve : any point on NURBS Curve

  RapidForm regards selected points as a inner region of Ref.Torus. and calculate inner and sectional radius of torus by fitting selected region. 

3. Select Done on RMB menu.

Result

Note  

• Point on Surface option cannot be applied to surfaces without mesh or if rendering never been executed once. Because picking point algorithm uses rendering information. So Point on Surface option can be applied to TRUE COLOR display mode with rendering information only.