Boundary Curve Adaptor Property Editor

Identifies a boundary on a surface. It is created automatically when you perform modeling operations (e.g., Merge Surfaces).

To display: Select the generated surface then click Selection on the Select panel, click the icon for the generator operator (e.g., Merge Surfaces), and click the appropriate Surface Curve Adaptor tab.

Subsurface Index

Identifies a subsurface by its index, if the surface is a mesh composed of multiple subsurfaces. For simple surfaces with no component subsurfaces, this value is 0.

Boundary

The boundary of the surface to use:

Min U Boundary (Red). The U = 0 boundary of the corresponding surface. When NURBS Boundaries on the Attributes tab of the Objects is on, this boundary is displayed in red.
Min V Boundary (Green). The V = 0 boundary of the corresponding surface. When NURBS Boundaries is on, this boundary is displayed in green.
Max U Boundary. The maximum U boundary of the corresponding surface.
Max U Boundary. The maximum V boundary of the corresponding surface.

Invert

Reverses the curve's parameterization. The minimum U boundary becomes the maximum U boundary.