T-FLEX Parametric CAD. Fundamentals. 2D Design

Use the option to define start tangency direction.
Specify the desired sequence of nodes (two minimum).
Use the option and define the end tangency condition.
Splines
To construct a spline in a polar coordinate system, use the option . This option allows creating a spline
passing through two points with tangency directions defined there. To create such a spline, define a
coordinate system, the start and end points of the spline and the tangent angles at the ends. The angles are
defined in the polar coordinate system by the ratio of degrees to millimeters. This way of defining a
construction entity may be used, for instance, in camshaft design.
To create symmetrical splines, first engage the option and select the symmetry axis, and then select the
desired spline.
A
Please note special issues in creation of closed splines. If the start point was selected as the end point as well,
the spline will be closed yet not necessarily smooth at the start-to-end connection. To impose such
smoothness, set “Closed” option in the parameters dialog box and do not connect the rubberbanded spline to
the start point.
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