MicroStation CONNECT Edition Help

Modify B-spline Surfaces Toolbox

The tools in the Modify B-spline Surfaces toolbox are used to change B-spline surfaces, edit their control points, and change their surface order and closure settings.

All tools in a toolbox are not always visible by default. To see all tools, right-click in the toolbox and select Show All from the menu.

To Select in the Modify B-spline Surfaces toolbox
Edit the number of control points and/or the number of rule lines for a B-spline surface.

Edit Surface Control Points
Change the degree of a B-spline surface in the U and/or V direction.

Change Surface Order
Change the closure settings in the U and/or V direction for a B-spline surface.

Change Surface Closure
Rebuild a B-spline surface.

Rebuild Surface
Combine B-spline surfaces that share a common boundary into a single B-spline surface.

Combine Surfaces
Split, or break, an element into two separate surfaces.

Split Surface
Modify a B-spline surface using handlebars.

Surface Handlebar
Twist a B-spline surface, or a mesh element, about a defined axis.

Twist Surface