ITopologicalOperator.ConvexHull Method

Constructs the convex hull of this geometry.

[Visual Basic 6.0]
Function ConvexHull As IGeometry

[Visual Basic .NET]
Public Function ConvexHull ( _
) As IGeometry

[C#]
public IGeometry ConvexHull (
);

[Java]
public IGeometry convexHull (
)
throws
    IOException,
    AutomationException

[C++]
HRESULT ConvexHull(
  IGeometry** outHull
);

Product Availability

Description

The ConvexHull of a geometry is the minimal bounding polygon such that all outer angles are convex. The ConvexHull of a point is the point itself.

Remarks

ITopologicalOperator methods must be applied on high-level geometries only. High-Level geometries are point, multipoint, polyline and polygon. To use this method with low-level geometries such as segments (Line, Circular Arc, Elliptic Arc, Bézier Curve), paths or rings, they must be wrapped into high-level geometries types.

This method does not support GeometryBags. 

ConvexHull method does not deal with Z attribute now.

See Also