Accord.NET Framework

## PointsCloudFindQuadrilateralCorners Method |

Find corners of quadrilateral or triangular area, which contains the specified collection of points.

Syntax

Request Example
View Source#### Parameters

#### Return Value

Type: ListIntPoint

Returns a list of 3 or 4 points, which are corners of the quadrilateral or triangular area filled by specified collection of point. The first point in the list is the point with lowest X coordinate (and with lowest Y if there are several points with the same X value). The corners are provided in counter clockwise order (Cartesian coordinate system).

- cloud
- Type: System.Collections.GenericIEnumerableIntPoint

Collection of points to search quadrilateral for.

Returns a list of 3 or 4 points, which are corners of the quadrilateral or triangular area filled by specified collection of point. The first point in the list is the point with lowest X coordinate (and with lowest Y if there are several points with the same X value). The corners are provided in counter clockwise order (Cartesian coordinate system).

Remarks

The method makes an assumption that the specified collection of points form some sort of quadrilateral/triangular area. With this assumption it tries to find corners of the area.

Note |
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The method does not search for bounding quadrilateral/triangular area,
where all specified points are inside of the found quadrilateral/triangle. Some of the
specified points potentially may be outside of the found quadrilateral/triangle, since the
method takes corners only from the specified collection of points, but does not calculate such
to form true bounding quadrilateral/triangle. |

See QuadrilateralRelativeDistortionLimit property for additional information.

See Also