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CircularArc2dExtensionGetTangentsTo Method (CircularArc2d, Point2d)

Gets the tangents between the active CircularArc2d instance complete circle and the point.

Namespace:  Gile.AutoCAD.Geometry
Assembly:  GeometryExtensions (in GeometryExtensions.dll) Version: 2.0.0.0 (2.0.0.0)
Syntax
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public static LineSegment2d[] GetTangentsTo(
	this CircularArc2d arc,
	Point2d pt
)

Parameters

arc
Type: CircularArc2d
The instance to which the method applies.
pt
Type: Point2d
The Point2d to which tangents are searched.

Return Value

Type: LineSegment2d
An array of LineSegement2d representing the tangents (2) or null if there is none.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type CircularArc2d. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).
Remarks
Tangents start points are on the object to which this method applies, end points on the point passed as argument. Tangents are always returned in the same order: the tangent on the left side of the line from the circular arc center to the point before the other one.
See Also