cvConvexHull2 Method (input, hullStorage, orientation, returnPoints)

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The function cvConvexHull2 finds convex hull of 2D point set using Sklansky's algorithm.

Declaration Syntax

Visual Basic

Visual C++

public static IntPtr cvConvexHull2(
	IntPtr input,
	IntPtr hullStorage,
	ORIENTATION orientation,
	int returnPoints
)

Public Shared Function cvConvexHull2 ( _
	input As IntPtr, _
	hullStorage As IntPtr, _
	orientation As ORIENTATION, _
	returnPoints As Integer _
) As IntPtr

public:
static IntPtr cvConvexHull2(
	IntPtr input, 
	IntPtr hullStorage, 
	ORIENTATION orientation, 
	int returnPoints
)

Parameters

input (IntPtr): Sequence or array of 2D points with 32-bit integer or floating-point coordinates

hullStorage (IntPtr): The destination array (CvMat*) or memory storage (CvMemStorage*) that will store the convex hull. If it is array, it should be 1d and have the same number of elements as the input array/sequence. On output the header is modified so to truncate the array downto the hull size

orientation (ORIENTATION): Desired orientation of convex hull: CV_CLOCKWISE or CV_COUNTER_CLOCKWISE

returnPoints (Int32): If non-zero, the points themselves will be stored in the hull instead of indices if hull_storage is array, or pointers if hull_storage is memory storage

Return Value

If hull_storage is memory storage, the function creates a sequence containing the hull points or pointers to them, depending on return_points value and returns the sequence on output

Assembly: Emgu.CV (Module: Emgu.CV) Version: 1.3.0.0 (1.3.0.0)