Computes convex hull for a set of 2D points.
Namespace:
OpenCvSharp
Assembly:
OpenCvSharp (in OpenCvSharp.dll) Version: 3.4.1.20180605-33-CaRLSharp
Syntaxpublic Mat ConvexHull(
InputArray points,
bool clockwise = false,
bool returnPoints = true
)
Public Function ConvexHull (
points As InputArray,
Optional clockwise As Boolean = false,
Optional returnPoints As Boolean = true
) As Mat
public:
Mat^ ConvexHull(
InputArray^ points,
bool clockwise = false,
bool returnPoints = true
)
member ConvexHull :
points : InputArray *
?clockwise : bool *
?returnPoints : bool
(* Defaults:
let _clockwise = defaultArg clockwise false
let _returnPoints = defaultArg returnPoints true
*)
-> Mat
function ConvexHull(points, clockwise, returnPoints);
Parameters
- points
- Type: OpenCvSharpInputArray
The input 2D point set, represented by CV_32SC2 or CV_32FC2 matrix - clockwise (Optional)
- Type: SystemBoolean
If true, the output convex hull will be oriented clockwise,
otherwise it will be oriented counter-clockwise. Here, the usual screen coordinate
system is assumed - the origin is at the top-left corner, x axis is oriented to the right,
and y axis is oriented downwards. - returnPoints (Optional)
- Type: SystemBoolean
Return Value
Type:
MatThe output convex hull. It is either a vector of points that form the
hull (must have the same type as the input points), or a vector of 0-based point
indices of the hull points in the original array (since the set of convex hull
points is a subset of the original point set).
See Also