Trace

The trace network on which the trace will be run. When working with an enterprise geodatabase, an input trace network must be from a feature service; a trace network from a database connection is not supported.

Specifies the type of trace to execute.Connected—A connected trace that begins at one or more starting points and spans outward along connected features will be used.Upstream—An upstream trace that discovers features upstream from a location in the network will be used. This type of trace requires the flow direction to be set.Downstream—A downstream trace that discovers features downstream from a location in the network will be used. This type of trace requires the flow direction to be set.Shortest path—A shortest path trace that finds the shortest path between two starting points in the network regardless of flow direction will be used. The cost of traversing the path is determined based on the network attribute set for the Shortest Path Network Attribute Name parameter.

A feature layer created using the Starting Points tab in the Trace Locations pane, or a table or feature class containing one or more records that represent the starting points of the trace. The TN_Temp_Starting_Points feature class is used by default and is generated in the default geodatabase of the project when you create starting points using the Starting Points tool in the Trace Locations pane.

A table or feature class containing one or more features that represent the barriers of the trace that prevent the trace from traversing beyond that point. The TN_Temp_Barriers feature class is used by default and is generated in the default geodatabase of the project when you create barriers using the Barriers tab in the Trace Locations pane.

Specifies the direction of the trace path. The cost of traversing the path is determined by the Shortest Path Network Attribute Name parameter value. This parameter is only honored when running a Shortest path trace type.NO_DIRECTION—The path between the two starting points, regardless of the direction of flow, will be used. This is the default.PATH_UPSTREAM—The upstream path between the two starting points will be used.PATH_DOWNSTREAM—The downstream path between the two starting points will be used.

The name of the network attribute used to calculate the path. When running a shortest path trace type, the shortest path is calculated using a numeric network attribute such as shape length. Cost and distance based paths can both be achieved. This parameter is required when running a shortest path trace.

Specifies whether the traversability barrier features will be included in the trace results.Checked—Traversability barrier features will be included in the trace results. This is the default.Unchecked—Traversability barrier features will not be included in the trace results.

Specifies whether an error will be returned if dirty areas are encountered in any of the traversed features. This is the only way to guarantee a trace is passing through features with consistent status in the network. To remove dirty areas, validate the network topology.Checked—The trace will return an error if dirty areas are encountered in any of the traversed features. This is the default.Unchecked—The trace will return results regardless of whether dirty areas are encountered in any of the traversed features.

Specifies whether barriers in the trace configuration will be ignored for starting points.Checked—Barriers at starting points will be ignored in the trace.Unchecked—Barriers at starting points will not be ignored in the trace. This is the default.

Specifies whether features with indeterminate or uninitialized flow will be traced. This parameter is only honored when running an upstream or downstream trace.Checked—Features with indeterminate or uninitialized flow direction will be traced.Unchecked—Features with indeterminate or uninitialized flow direction will not be traced. This is the default.

Specifies the type of traversability that will be applied. Traversability scope determines whether traversability is applied to junctions, edges, or both. For example, in a network of recreational trails, if a condition barrier is defined to stop a trace if a surfacetype attribute contains a value of gravel and the traversability scope is set to junctions only, the trace will not stop even if it encounters an edge feature with this value in the surfacetype field, because the surfacetype attribute is only applicable to edges.Both junctions and edges—Traversability will be applied to both junctions and edges. This is the default.Junctions only—Traversability will be applied to junctions only.Edges only—Traversability will be applied to edges only.

Specifies the type of results that will be returned by the trace.Selection— The trace results will be returned as a selection set on the appropriate network features. This is the default.Aggregated Geometry— The trace results will be aggregated by geometry type and stored in feature classes displayed in layers in the active map.Network Layers—The trace results will be added to feature layers as a selection set in a group layer.Connectivity—The trace results will be returned as a connectivity graph in a specified output .json file. This option enables the Output JSON parameter.Elements—The trace results will be returned as feature-based information in a specified output .json file. This option enables the Output JSON parameter.

Specifies how the selection will be applied and what to do if a current selection exists.New selection—The resulting selection will replace the current selection. This is the default.Add to the current selection—The resulting selection will be added to the current selection if one exists. If no selection exists, this is the same as the new selection option.Remove from the current selection—The resulting selection will be removed from the current selection. If no selection exists, this option has no effect.Select subset from the current selection—The resulting selection will be combined with the current selection. Only records that are common to both remain selected.Switch the current selection—The resulting selection will be switched. Results that were selected are removed from the current selection, while results that were not selected are added to the current selection. If no selection exists, this is the same as the new selection option.

Specifies whether content will be truncated from or appended to the feature classes chosen to store aggregated geometry. This parameter is only applicable to the aggregated geometry result type.Checked—The feature classes storing aggregated trace geometry will be truncated. Only the output geometry from the current trace operation will be written. This is the default.Unchecked—The output geometry from the current trace operation will be appended to the feature classes storing aggregated geometry.

The name of the trace operation. This value is stored in the TRACENAME field of the output feature class to assist with identification of the trace results. This parameter is only applicable to the aggregated geometry result type.

An output multipoint feature class containing the aggregated result geometry. By default, the parameter is populated with a system-generated feature class named Trace_Results_Aggregated_Points that will be stored in the project's default geodatabase.This feature class will be created automatically if it does not exist. An existing feature class can also be used to store aggregated geometry. If a feature class other than the default is used, it must be a multipoint feature class and contain a string field named TRACENAME. This parameter is only applicable to the aggregated geometry result type.

An output polyline feature class containing the aggregated result geometry. By default, the parameter is populated with a system-generated feature class named Trace_Results_Aggregated_Lines that will be stored in the project's default geodatabase.This feature class will be created automatically if it does not exist. An existing feature class can also be used to store aggregated geometry. If a feature class other than the default is used, it must be a polyline feature class and contain a string field named TRACENAME. This parameter is only applicable to the aggregated geometry result type.

The name of the output group layer that contains feature layers with selection sets of features returned by the trace. The layer provides access to work with the output of a trace in ModelBuilder and Python.This parameter is only applicable to the network layers result type.

Specifies whether an existing named trace configuration will be used to populate the parameters of the Trace tool.Checked—An existing named trace configuration will be used to define the properties of the trace. All parameters except Trace Configuration Name, Starting Points, and Barriers will be ignored.Unchecked—An existing named trace configuration will not be used to define the properties of the trace. This is the default.This parameter requires Trace Network Version 2 or later.

The name of the trace configuration that will be used to define the properties of the trace. This parameter is only active when the Use Trace Configuration parameter is checked.This parameter requires Trace Network Version 2 or later.

The name and location of the .json file that will be generated.

The name of the optional feature service to create on the federated server containing the result of this tool. If no name is specified an output feature service will not be created.