Editing Connecting Curves

This task shows you how to edit a curve which connects two elements of the curve type.
Open the Edit_Connecting_Curves.CATPart document.

  1. Double-click the connecting curve you want to edit.
    Red arrows indicating tangency directions are now displayed at each extremity point.

 
  The Connect Curve Definition dialog box is displayed. For each support curve, you can edit the following options as appropriate:
  • Point: defines the extremity point (on the support curve) of the connecting curve.
  • Curve: defines the support curve for the connecting curve.
  • Continuity: indicates whether the connecting curve is continuous in point, in curvature or in tangency with the support curves.
  • Tension: when the connecting curve is continuous in curvature or in tangency, specifies the tension which is applied to it.
  • Reverse Direction: when the connecting curve is continuous in curvature or in tangency, reverses its direction.

  1. For the first support curve, select Tangency from the Continuity field and set the tension to 3.

  1.  To reverse tangency directions you can now click both red arrows available when editing. This is equivalent to clicking the Reverse Direction button from the dialog box. For the purpose of our scenario, click the left arrow.
    You must obtain this:

  1. For the second support curve, click the Point field, then select another extremity point (CtrlPoint.4 for example).

  1. When you are satisfied with your modifications, click OK to validate and exit the dialog box.
 

Inconsistent Connecting Curves

If an element that belongs to the connecting curve is deleted, the connecting curve becomes inconsistent (the connecting curve color turns red). As a result, when you exit the Sketcher workbench the Update Diagnosis dialog box is displayed and an error message appears within the dialog box. Just double-click the connecting curve to re-edit it.