Extending Surfaces

Source:
Don LaCourse, Principal Partner, eDocHelp
Editor, 3DCADTips.com

Surfaces may be extended in either or both the U and V directions. Extending surfaces is very helpful during the development of surface geometry. For example, to establish an additional section curve further away from a surfaces current boundary, or to allow the continued tangency of subsequent surface functions. As a rule, surface extensions are used as a means to an end rather as an end to themselves. The development of new surface boundaries is generally the result of surface extensions.