private static void ExploreTopologyErrors(Topology topology)
{
// Get all the errors and exceptions currently associated with the topology.
Console.WriteLine("***************************************************************************");
IReadOnlyList <TopologyError> allErrorsAndExceptions = topology.GetErrors(new ErrorDescription(topology.GetExtent()));
Console.WriteLine($"There are {allErrorsAndExceptions.Count} errors and exceptions associated with the topology.");
Console.WriteLine("OriginClassName \t OriginObjectID \t DestinationClassName \t DestinationObjectID \t RuleType \t IsException \t Shape type \t Shape width & height \t Rule ID \t");
foreach (TopologyError error in allErrorsAndExceptions)
{
Console.WriteLine($"'{error.OriginClassName}' \t {error.OriginObjectID} \t '{error.DestinationClassName}' \t " +
$"{error.DestinationObjectID} \t {error.RuleType} \t {error.IsException} \t {error.Shape.GeometryType} \t " +
$"{error.Shape.Extent.Width},{error.Shape.Extent.Height} \t {error.RuleID}");
}
// Get all the errors due to features violating the "PointProperlyInsideArea" topology rule.
TopologyDefinition definition = topology.GetDefinition();
TopologyRule pointProperlyInsideAreaRule = definition.GetRules().First(rule => rule.RuleType == TopologyRuleType.PointProperlyInsideArea);
ErrorDescription errorDescription = new ErrorDescription(topology.GetExtent())
{
TopologyRule = pointProperlyInsideAreaRule
};
IReadOnlyList <TopologyError> errorsDueToViolatingPointProperlyInsideAreaRule = topology.GetErrors(errorDescription);
Console.WriteLine($"There are {errorsDueToViolatingPointProperlyInsideAreaRule.Count} feature violating the 'PointProperlyInsideArea' topology rule.");
// Mark all errors from features violating the 'PointProperlyInsideArea' topology rule as exceptions.
foreach (TopologyError error in errorsDueToViolatingPointProperlyInsideAreaRule)
{
topology.MarkAsException(error);
}
// Now verify all the errors from features violating the 'PointProperlyInsideArea' topology rule have indeed been
// marked as exceptions.
//
// By default, ErrorDescription is initialized to ErrorType.ErrorAndException. Here we want ErrorType.ErrorOnly.
errorDescription = new ErrorDescription(topology.GetExtent())
{
ErrorType = ErrorType.ErrorOnly,
TopologyRule = pointProperlyInsideAreaRule
};
IReadOnlyList <TopologyError> errorsAfterMarkedAsExceptions = topology.GetErrors(errorDescription);
Console.WriteLine($"There are {errorsAfterMarkedAsExceptions.Count} feature violating the 'PointProperlyInsideArea' topology rule after all the errors have been marked as exceptions.");
// Finally, reset all the exceptions as errors by unmarking them as exceptions.
foreach (TopologyError error in errorsDueToViolatingPointProperlyInsideAreaRule)
{
topology.UnmarkAsException(error);
}
IReadOnlyList <TopologyError> errorsAfterUnmarkedAsExceptions = topology.GetErrors(errorDescription);
Console.WriteLine($"There are {errorsAfterUnmarkedAsExceptions.Count} feature violating the 'PointProperlyInsideArea' topology rule after all the exceptions have been reset as errors.");
}
public void WorkWithTopologyErrors()
{
using (Geodatabase geodatabase = new Geodatabase(new FileGeodatabaseConnectionPath(new Uri(@"C:\TestData\GrandTeton.gdb"))))
using (Topology topology = geodatabase.OpenDataset <Topology>("Backcountry_Topology"))
{
#region GetTopologyErrors
// Get all the errors and exceptions currently associated with the topology.
IReadOnlyList <TopologyError> allErrorsAndExceptions = topology.GetErrors(new ErrorDescription(topology.GetExtent()));
Console.WriteLine($"errors and exceptions count => {allErrorsAndExceptions.Count}");
Console.WriteLine("OriginClassName \t OriginObjectID \t DestinationClassName \t DestinationObjectID \t RuleType \t IsException \t Shape type \t Shape width & height \t Rule ID \t");
foreach (TopologyError error in allErrorsAndExceptions)
{
Console.WriteLine($"'{error.OriginClassName}' \t {error.OriginObjectID} \t '{error.DestinationClassName}' \t " +
$"{error.DestinationObjectID} \t {error.RuleType} \t {error.IsException} \t {error.Shape.GeometryType} \t " +
$"{error.Shape.Extent.Width},{error.Shape.Extent.Height} \t {error.RuleID}");
}
#endregion GetTopologyErrors
#region MarkAndUnmarkAsErrors
// Get all the errors due to features violating the "PointProperlyInsideArea" topology rule.
using (TopologyDefinition topologyDefinition = topology.GetDefinition())
{
TopologyRule pointProperlyInsideAreaRule = topologyDefinition.GetRules().First(rule => rule.RuleType == TopologyRuleType.PointProperlyInsideArea);
ErrorDescription errorDescription = new ErrorDescription(topology.GetExtent())
{
TopologyRule = pointProperlyInsideAreaRule
};
IReadOnlyList <TopologyError> errorsDueToViolatingPointProperlyInsideAreaRule = topology.GetErrors(errorDescription);
Console.WriteLine($"There are {errorsDueToViolatingPointProperlyInsideAreaRule.Count} feature violating the 'PointProperlyInsideArea' topology rule.");
// Mark all errors from features violating the 'PointProperlyInsideArea' topology rule as exceptions.
foreach (TopologyError error in errorsDueToViolatingPointProperlyInsideAreaRule)
{
topology.MarkAsException(error);
}
// Now verify all the errors from features violating the 'PointProperlyInsideArea' topology rule have indeed been
// marked as exceptions.
//
// By default, ErrorDescription is initialized to ErrorType.ErrorAndException. Here we want ErrorType.ErrorOnly.
errorDescription = new ErrorDescription(topology.GetExtent())
{
ErrorType = ErrorType.ErrorOnly,
TopologyRule = pointProperlyInsideAreaRule
};
IReadOnlyList <TopologyError> errorsAfterMarkedAsExceptions = topology.GetErrors(errorDescription);
Console.WriteLine($"There are {errorsAfterMarkedAsExceptions.Count} feature violating the 'PointProperlyInsideArea' topology rule after all the errors have been marked as exceptions.");
// Finally, reset all the exceptions as errors by unmarking them as exceptions.
foreach (TopologyError error in errorsDueToViolatingPointProperlyInsideAreaRule)
{
topology.UnmarkAsException(error);
}
IReadOnlyList <TopologyError> errorsAfterUnmarkedAsExceptions = topology.GetErrors(errorDescription);
Console.WriteLine($"There are {errorsAfterUnmarkedAsExceptions.Count} feature violating the 'PointProperlyInsideArea' topology rule after all the exceptions have been reset as errors.");
}
#endregion MarkAndUnmarkAsErrors
}
}
