Angle of a tangent to the x axis
(angle_tangent)


Result (angle)

Parameter Name
Type
Description
el
alt

Tangent objects

c
circle

Circle / arc

e
ellips

Ellipse / elliptical arc

p
point

Point P on the requested object

dir
tgdir

Direction of the imaginary tangent

The action calculates the angle of an imaginary tangent T which is defined by a point on an object.

The angle W1 or W2 is defined by the tangent direction and the positive x axis of the coordinate system. The tangent direction continues the circulation direction.





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