ITopologicalOperator2 Interface

Provides access to members that extend the ITopologicalOperator interface.

Members

	Name	Description
	Boundary	The boundary of this geometry. A polygon's boundary is a polyline. A polyline's boundary is a multipoint. A point or multipoint's boundary is an empty point or multipoint.
	Buffer	Constructs a polygon that is the locus of points at a distance less than or equal to a specified distance from this geometry.
	Clip	Constructs the intersection of this geometry and the specified envelope.
	ClipDense	Constructs the intersection of this geometry and the specified envelope; densifies lines in output contributed by the clipping envelope.
	ClipToDomain	Clips the geometry to the domain of the spatial reference. Useful for ensuring that buffers can be fit within the spatial domain of the feature class to which they are being added.
	ConstructBuffers	Constructs a set of buffers at various distances. More efficient than calling Buffer repeatedly on the same geometry. This method is intended for internal use only.
	ConstructUnion	Defines this geometry to be the union of the inputs. More efficient for unioning multiple geometries than calling Union repeatedly.
	ConvexHull	Constructs the convex hull of this geometry.
	Cut	Splits this geometry into a part left of the cutting polyline, and a part right of it.
	Difference	Constructs the geometry containing points from this geometry but not the other geometry.
	Intersect	Constructs the geometry that is the set-theoretic intersection of the input geometries. Use different resultDimension values to generate results of different dimensions.
	IntersectMultidimension	Constructs the set-theoretic intersection of the inputs. The results are returned in a geometry bag with one element per result dimension.
	IsKnownSimple	Indicates whether this geometry is known (or assumed) to be topologically correct.
	IsKnownSimple	Indicates whether this geometry is known (or assumed) to be topologically correct.
	IsSimple	Indicates whether this geometry is known (or assumed) to be topologically correct, after explicitly determining this if the geometry is not already known (or assumed) to be simple.
	QueryClipped	Redefines clippedGeometry to be the intersection of this geometry and the clipping envelope.
	QueryClippedDense	Redefines clippedGeometry to be the intersection of this geometry and the clipping envelope; densifies lines in the output contributed by the clipping envelope.
	Simplify	Makes this geometry topologically correct.
	SymmetricDifference	Constructs the geometry that contains points from either but not both input geometries.
	TopologyCache	Provides a handle to the TopologyCache.
	Union	Constructs the geometry that is the set-theoretic union of the input geometries.

ITopologicalOperator2.ClipToDomain Method

Clips the geometry to the domain of the spatial reference. Useful for ensuring that buffers can be fit within the spatial domain of the feature class to which they are being added.

Public Sub ClipToDomain ( _
)

public void ClipToDomain (
);

ITopologicalOperator2.ConstructBuffers Method

Constructs a set of buffers at various distances. More efficient than calling Buffer repeatedly on the same geometry. This method is intended for internal use only.

Public Function ConstructBuffers ( _
    ByVal numBuffers As Integer, _
    ByRef distances As Double _
) As IEnumGeometry

public IEnumGeometry ConstructBuffers (
    int numBuffers,
    ref double distances
);

Remarks

use the generic version of this method accesible through the GeometryEnvironment singleton object via the IGeometryBridge interface.

This method is only implemented for polygons and polylines.

When using C# you must use the IGeometryBridge interface to call this method.

When using VBNET you must use the IGeometryBridge interface to call this method.

ITopologicalOperator2.IntersectMultidimension Method

Constructs the set-theoretic intersection of the inputs. The results are returned in a geometry bag with one element per result dimension.

Public Function IntersectMultidimension ( _
    ByVal other As IGeometry _
) As IGeometry

public IGeometry IntersectMultidimension (
    IGeometry other
);

Remarks

This method only works with the following combination of geometries: Polygon with Polyline (and vice versa), Polyline with Multipoint (and vice versa), Polygon with Multipoint (and vice versa).When using this method to intersect a Polygon with a Polyline (or vice versa) the geometry returned will be a GeometryBag.

When using this method to intersect a Multipoint with a Polygon (or vice versa) or Multipoint with a Polyline (or vice versa) the geometry returned will be a Multipoint.

If the desired combination of geometries is not available on this function, use Intersect on ITopologicalOperator.

ITopologicalOperator2.IsKnownSimple Property

Indicates whether this geometry is known (or assumed) to be topologically correct.

Public WriteOnly Property IsKnownSimple_2

public void IsKnownSimple_2 {set;}

ITopologicalOperator2.IsKnownSimple Property

Indicates whether this geometry is known (or assumed) to be topologically correct.

Public WriteOnly Property IsKnownSimple_2

public void IsKnownSimple_2 {set;}

Inherited Interfaces

Interfaces	Description
ITopologicalOperator	Provides access to members for constructing new geometries based upon topological relationships between existing geometries.

Classes that implement ITopologicalOperator2

Classes	Description
MultiPatch	A collection of surface patches.
Multipoint	An ordered collection of points; optionally has measure, height and ID attributes.
Polygon	A collection of rings ordered by their containment relationship; optionally has measure, height and ID attributes.
Polyline	An ordered collection of paths; optionally has measure, height and ID attributes.

Remarks

ITopologicalOperator2 methods must be applied on high-level geometries only. High-Level geometries are point, multipoint, polyline and polygon. To use this interface with low-level geometries such as segments (Line, Circular Arc, Elliptic Arc, Bezier Curve), paths or rings, they must be wrapped into high-level geometry types.

For multipatch geometries, generally the footprint or envelope is used.