Evaluate > Surface Evaluate > Curvature
 
 
 

Creates curves-on-surface along lines of constant curvature.

Curvature Control

Curvature Type

Choose the method of calculating curvature on the surface:

Mean – Average the two principal curvatures at each point on the surface.

Gaussian – Multiply the two principal curvatures at each point on the surface.

Principal Min/Principal Max – Use the minimum or maximum curvature values (that is, the curvature of the steepest or flattest curves that pass through each point).

Mean or Gaussian curvature is most useful for detecting surface irregularities. Principal Min or Max curvature is most useful for detecting inflection points.

Curvature Value

Enter the curvature value for the iso-curvature lines you want to create.

The Curvature tool creates curves-on-surface along these lines of constant curvature.

Subdivision

The quality of the curve-on-surface projection, from 1 to 6. The higher the value, the more precise the result. Use low values for draft quality, use higher values for final results.

Control Options

Create History

Save the history of the new curves-on-surface for later editing. If you turn Create History on, you can modify the surfaces and the curves-on-surface update.

Auto Recalc.

Update the curves-on-surface as you change the values in the Curvature window.

Buttons

Recalc

When Auto Recalc. is off, use this button to update the curves on surface to correspond to the current options.

Undo All

Undo all the changes made by the tool and return to the original surface.

Next

Finish creating curves-on-surface on the current surface and prompt for a new surface to evaluate.

See Also