Transition Part: Connection Constraints

3-D FFS > Via connection > Transit

The assigning of connection constraints provides numerous modelling options for transition piece generation. For instance, the created surfaces can be connected smoothly. Such smooth connections are, mathematically speaking, tangential transitions. The relevant tangents can either be determined by HiCAD automatically and with a curvature course which is as discreet as possible, or be specified explicitly by the user via value entries.

A different type of transition piece will be created if a connecting direction is specified for the boundary curves. Typically, the perpendicular connection direction is chosen for planar cross-sections.

The following connection constraints can be specified separately for the start cross-section and the end cross-section:

 

None	In this case the direction of the transition piece at the start cross-section, respectively end cross-section will be determined by HiCAD automatically. The connection of the synchronisation lines will be linear.
Tangential	The transition piece is connected tangentially to the respective boundary curve. If the boundary curve selection does not clearly indicate to which surface the tangential connection is to be made, HiCAD will mark the appropriate surfaces and prompts you to confirm this suggestion. During this process, cylindrical and conical surfaces take preference over planar surfaces.
Perpendicular	The direction of the connection is perpendicular to the cross-section. As with the tangential connection, the tangent length can be automatically determined by HiCAD and remodelled as required.
Invert	Activate the appropriate checkbox if you want to invert the direction vector at the start or end.

Transition Part (3-D FFS) • Surface via Connection (3-D FFS) • Overview of Functions (3-D FFS)