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PolygonOrientation
Header: | AVL.h |
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Namespace: | avl |
Module: | FoundationBasic |
Computes the polygon orientation as angle with value in range 0.0 - 180.0.
Syntax
C++
C#
void avl::PolygonOrientation ( const avl::Path& inPolygon, float& outOrientationAngle )
Parameters
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
Errors
List of possible exceptions:
Error type | Description |
---|---|
DomainError | Degenerate polygon on input in PolygonOrientation. |
DomainError | Open path on input in PolygonOrientation. |
See Also
- RegionOrientation – Computes the orientation of a region as an angle of value in a proper range.