Bentley Descartes CONNECT Edition

Create Freeform Surfaces Toolbox

The Create Freeform Surfaces toolbox contains tools to place or construct a free-form, helical surface, and to construct a surface by cross-sections, edges, skin, or by sweeping along curves.



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 Create Surfaces toolbox
Construct a B-spline surface that is transformed between section elements.


Loft Surface
Construct a surface between the vertices of two profiles (or groups of profiles).


Loft Surface by Vertices
Create a B-spline surface by sweeping one or two section profile curves along two trace curves.


Swept Surface Along Curves
Create a helical-shaped B-spline surface by sweeping a section profile curve along a pre-defined helix curve.


Helical Surface
Create a surface transition from a rectangular to a circular section.


Loft Rectangle to Circle
Construct a B-spline surface that is transformed between elements of a network.


Surface by Network of Curves
Construct a B-spline surface that contains selected elements as edges.


Surface by Edge Curves
Construct a B-spline surface by defining four points.


Surface By Corner Points
Place or construct a free-form B-spline surface.


B-spline Surface by Points
Construct a rectangular B-spline surface by defining 2 or 3 corner points, or by defining multiple points that are averaged.


Planar Surface by Points
Key-in: DIALOG TOOLBOX 3DFREEFORM [ OFF | ON | TOGGLE ]