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ConcaveHull Class

Represents the concave hull of a set of 2D points.
Inheritance Hierarchy
SystemObject
  Altaxo.Geometry.Int64_2DConcaveHull

Namespace: Altaxo.Geometry.Int64_2D
Assembly: AltaxoCore (in AltaxoCore.dll) Version: 4.8.3179.0 (4.8.3179.0)
Syntax
C#
public class ConcaveHull

The ConcaveHull type exposes the following members.

Constructors
 NameDescription
Public methodConcaveHull Initializes a new instance of the ConcaveHull class.
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Properties
 NameDescription
Public propertyConcaveHullPoints Gets the points that form the concave hull.
Public propertyConvexHullPoints Gets the points that form the convex hull.
Public propertyPointsNotOnConvexHull Gets the points that are not part of the convex hull.
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Methods
 NameDescription
Public methodCalculateConcaveHull Sets a concave hull with parameters that could be different from those provided in the constructor.
Public methodStatic memberDoesPointTouchLine 
Public methodStatic memberDoLinesIntersectOrTouch Test if two line segments touch each other or intersect.
Public methodEqualsDetermines whether the specified object is equal to the current object.
(Inherited from Object)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
(Inherited from Object)
Public methodGetHashCodeServes as the default hash function.
(Inherited from Object)
Public methodGetTypeGets the Type of the current instance.
(Inherited from Object)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object.
(Inherited from Object)
Public methodStatic memberSignOfCrossProduct Determines whether a point is right, left or on the (infinite long!) line that is defined by the provided line segment.
Public methodToStringReturns a string that represents the current object.
(Inherited from Object)
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Remarks
For the algorithms calculating the concave hull, see article by E. Rosen et al. 'Implementation of a fast and efficient concave hull algorithm" here: http://www.it.uu.se/edu/course/homepage/projektTDB/ht13/project10/Project-10-report.pdf. For the intersection tests, see web site of Martin Thoma: https://martin-thoma.com/how-to-check-if-two-line-segments-intersect/.
See Also