Evaluate > Surface Evaluate

Evaluate > Surface Evaluate > Contour

Create curves-on-surface from a single-plane cross-section.

Plane Origin: The 3D coordinates of the origin of the plane which will intersect the surfaces to create curves-on-surface.

You can set this with the contour manipulator when you use the tool.
Direction Type: Select either Rotation or Vector.
Plane Normal: The vector perpendicular to the plane.

You can set this vector with the contour manipulator when you use the tool.
Vector/Plane/Point: Enter the name of a point/vector/plane to position/align the Contour manipulator with it. (You can also click a point/vector/plane to align the Contour manipulator with it. Or you can select the point/vector/plane and the surface before selecting the tool.)

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 will update.
Auto Recalc.: Update the curves-on-surface as you change the values in the Surface Evaluate 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.

To create curves-on-surface along a contour line

Pick the surfaces on which you want to create curves-on-surface.
Choose Surface Evaluate > Contour r from the Evaluate palette menu.
The Contour control window opens.

The contour manipulator appears.
Drag different handles on the manipulator to orient the cross-section plane, or type exact values in the Plane Origin and Plane Normal fields of the Surface Evaluate window.
If Auto Recalc. is off, click Recalc. to create the curves-on-surface.
You can click the Undo All button in the control window to remove the curves on surface, or change the manipulator and click Recalc.