Construction Aid Tangent > Angle - Object (Construct Menu)

This command draws a Construction Aid endless line which is tangent to a given circle, ellipse, or Bézier curve at a specified angle.

After choosing this command, a dialog appears where a specific angle can be entered.

Any circle, ellipse, or Bézier curve which exists on its own or as part of another object can be identified as a reference object. This can also be the arc of an ellipse segment or a circle arc within a surface.

The position at which the (part) object is identified (the "ID point) affects the way in which the rest of the command is carried out. If a tangent is to be placed at a specified angle to a circle or ellipse, it can be placed on either side of the circle or ellipse. The tangent whose tangent point is nearer to the ID point is used (see graphic).

If a contour section consists of several Bézier curves, the ID point must be placed on the respective Bézier curve that contains the desired tangent point.