Topology Checking

Usage Instruction

Perform topology error checking on datasets. Topology checking is to check out the objects that do not conform to the topology rules in the point, line and surface datasets themselves and between different types of datasets, and save the checking results to the dataset (i.e. point, line and surface dataset). It is mainly used for data editing and topology analysis pre-processing.

Parameter Description

Parameter Name Default Value Parameter Definition Parameter Type
Source Datasets   The specified source dataset for polygon topology processing can only be a line dataset or a network dataset. DatasetVector
Reference Dataset
(Optional)
  The reference dataset specified for checking. If the topology rule used does not require a reference dataset, set to null. DatasetVector
Topology Rules   Topology Rules TopologyRule
Tolerance 0.0 The tolerance control required for the specified processing. The unit is the same as the unit of the data set for topology preprocessing. The range of values is greater than or equal to 0. Less than 0 will throw an exception. Double
Inspected area
(Optional)
  The specified area to be checked, if the area is null, the entire topology dataset is checked by default, otherwise the topology is checked for the set area. GeoRegion
Datasource where the result dataset is located   The datasource where the specified result dataset is located Datasource
Name of the result dataset   Name of the specified result dataset String

Output Result

Parameter Name Parameter Definition Parameter Type
Repair Dataset After performing the repair of topology errors, the repaired dataset is returned, which is the source dataset. DatasetVector
Checking Datasets The topology error dataset checked out. DatasetVector