You are here: Start » AVL.NET » Function Reference » Path » Polygon Features » AVL.PolygonOrientation

AVL.PolygonOrientation

Computes the polygon orientation as angle with value in range 0.0 - 180.0.

Namespace:AvlNet
Assembly:AVL.NET.dll

Syntax

C++
C#
 
public static void PolygonOrientation
(
	AvlNet.Path inPolygon,
	out float outOrientationAngle
)

Parameters

Name Type Range Default Description
inPolygonAvlNet.Path
outOrientationAnglefloat

Description

Polygon orientation can be thought of as the direction in which the polygon is oriented. Mathematically it is the angle between X-axis and the line passing through the polygon mass center, that rotation around this line produces the smallest torque.

Note that if the input path is not a valid polygon (i.e. it has at least one self-intersection), the computation may lead to results that are not intuitive.

Examples

Orientation of the sample region equals to 55.386, which is visualized on the second image by drawing the line of this orientation passing through the mass center of the polygon.

Errors

List of possible exceptions:

Error type Description
DomainError Degenerate polygon on input in PolygonOrientation.
DomainError Open path on input in PolygonOrientation.

See also