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For example, geodesic buffers can be generated around points. It provides additional buffering options that are not possible with the current ArcObjects Buffer method. It is designed to process a large number of inputs without requiring that all inputs and outputs exist in main memory at the same time.
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The BufferConstruction object implements an updated, highly robust geometric buffering operation. Public ILongArray EmptyBufferIDs Classes that implement IBufferConstruction Classesīuffers collections of lines or collections of polygons. Public ReadOnly Property EmptyBufferIDs As ILongArray The identifier is either a sequence number or a geomID. Returns an array of identifiers of input geometries that result in empty buffers - typically as a result of buffering polygons by negative distances. ) IBufferConstruction.EmptyBufferIDs Property ) public void ConstructBuffersByDistances2 ( IEnumGeometry pInputGeometries, IDoubleArray pDistances, IGeometr圜ollection pOutputBuffers Public Sub ConstructBuffersByDistances2 ( _ The input geometries can be a mix of polylines, polygons, points and multipoints. ) IBufferConstruction.ConstructBuffersByDistances2 MethodĬonstructs buffer polygons for the set of input geometries and distances supplied from arrays. ) public void ConstructBuffersByDistances ( IGeometricBufferSourceSink pBufferInputOutput Public Sub ConstructBuffersByDistances ( _īyVal pBufferInputOutput As IGeometricBufferSourceSink _ IBufferConstruction.ConstructBuffersByDistances MethodĬonstructs buffer polygons for the set of input geometries and distances supplied from the specified source-sink interface. You can specify that overlapping buffers will be unioned together before being returned using the UnionOverlappingBuffers property, etc. You can control the quality of the curve approximations used during buffering using the DensifyDeviation property. For example, you can define the DistanceOffsets property in order to have this method generate multiple buffers for each input geometry. The behavior of this method is affected by the various properties exposed on the IBufferConstructionProperties interface. Alternatively, clients can provide implementations of IEnumGeometry and IGeometr圜ollection to avoid staging inputs and outputs in memory. ) public void ConstructBuffers ( IEnumGeometry pInputGeometries, double distance, IGeometr圜ollection pOutputBuffersĬonstructBuffers can be used with GeometryBag objects to buffer collections of geometries that are staged in memory. Public Sub ConstructBuffers ( _īyVal pInputGeometries As IEnumGeometry, _īyVal pOutputBuffers As IGeometr圜ollection _ ) IBufferConstruction.ConstructBuffers MethodĬonstructs buffer polygons at the specified distance for the set of input geometries. Public IGeometry Buffer ( IGeometry pInGeometry, double distance This method does not use the properties exposed in IBufferConstructionProperties. The identifier is either a sequence number or a geomID.Ĭompatibility method for clients wishing to replace useages of ITopologicalOperator::Buffer. The input geometries can be a mix of polylines, polygons, points and multipoints.Ĭonstructs buffer polygons for the set of input geometries and distances supplied from arrays. The input geometries can be a mix of polylines, polygons, points and multipoints.Ĭonstructs buffer polygons for the set of input geometries and distances supplied from the specified source-sink interface. This method does not use the properties exposed in IBufferConstructionProperties.Ĭonstructs buffer polygons at the specified distance for the set of input geometries. MembersĬompatibility method for clients wishing to replace useages of ITopologicalOperator::Buffer. Provides access to members that buffer sets of geometries.