Title Build Starting Points
Creates starting points based on a trace configuration.
The Utility Network must be at least Schema Version 5.
License
Standard
BuildStartingPoints (in_utility_network, trace_config, starting_class, group_by_field, {expression}, {results_trace_config}, {trace_result_type}, {trace_results_output}, {trace_results_input}, {filter_classes}, {skip_found}, {compare_output_name}, {remove_dup_groups})
Parameter | Explanation | Data Type |
---|---|---|
in_utility_network |
Dialog Reference
The utility network that will be used to trace. |
GPUtilityNetworkLayer |
trace_config |
Dialog Reference
The utility network trace configuration used to define the trace parameters. |
GPString |
starting_class |
Dialog Reference
The utility network starting points layer. A UN controlled layer can also be used, the center point of the line/polygon will be used as the starting point. For devices, a default terminal of 1 is used. |
GPComposite |
group_by_field |
Dialog Reference
A field with a value to group the result locations for the batch trace. Select ObjectID or Global ID to make each set of results unique. |
Field |
expression (Optional) |
Dialog Reference
The simple calculation expression used to limit the starting points used in a trace. |
GPSQLExpression |
results_trace_config (Optional) |
Dialog Reference
The trace configuration to use in the result. If not provided, the trace configuration used to find the results will be used. |
GPString |
trace_result_type (Optional) |
Dialog Reference
Determine how the results are stored. |
GPBoolean |
trace_results_output (Optional) |
Dialog Reference
The results from the trace in the starting points featureclass format. |
DEFeatureClass |
trace_results_input (Optional) |
Dialog Reference
The results from the trace in the Utility Network Starting Points featureclass format. If the row with the Global ID/Terminal ID exists, the ISDIRTY field will be updated. If the row does not exist, it will be inserted. |
GPFeatureLayer |
filter_classes (Optional) |
Dialog Reference
Only store features in these classes. This is useful when tracing a line layer to build starting points. The tool loops over all input features and creates a starting point to trace. If the trace results the features used to trace, they can be skipped to increase performance. This filter allows you to return them and not store them in the result. |
GPString |
skip_found (Optional) |
Dialog Reference
If a feature's global id was returned in a trace, do not trace that feature. |
GPBoolean |
compare_output_name (Optional) |
Dialog Reference
On an update, compare the group by names. When running a batch process, it is best to pick this, but may insert more records instead of updating. |
GPBoolean |
remove_dup_groups (Optional) |
Dialog Reference
Option to remove duplicate sets of results if they were discovered in a previous trace. |
GPBoolean |
BuildStartingPoints example 1 (Python window)
Iterate over the features in the starting class and trace to get an output starting locations table
import arcpy
in_utility_network = "D:/data/UtilityNetwork.gdb/UtilityNetwork/Network"
trace_config = "Trace Config:: Find Start Points"
starting_class = "D:/data/TraceLocations.gdb/Starting_Points"
group_by_field = "GLOBALID"
expression = None
results_trace_config = "Find Results"
trace_result_type = False
trace_results_output = "D:/data/TraceLocations.gdb/OutLocations"
trace_results_input = None
filter_classes = ["UNLine", "UNEdgeObject"]
skip_found = False
compare_output_name = True
out_utility_network = None
remove_dup_groups = True
arcpy.udms.BuildStartingPoints(
"D:/data/UtilityNetwork.gdb/UtilityNetwork/Network",
"Trace Config:: Find Start Points",
"D:/data/TraceLocations.gdb/Starting_Points",
"GLOBALID",
None,
"Find Results",
False,
"D:/data/TraceLocations.gdb/OutLocations",
None,
["UNLine", "UNEdgeObject"],
False,
True,
None,
True,
)
BuildStartingPoints example 2 (stand-alone script)
Iterate over the features in the starting class and trace to get an output starting locations table
import arcpy
in_utility_network = "D:/data/UtilityNetwork.gdb/UtilityNetwork/Network"
trace_config = "Trace Config:: Find Start Points"
starting_class = "D:/data/TraceLocations.gdb/Starting_Points"
group_by_field = "GLOBALID"
expression = None
results_trace_config = "Find Results"
trace_result_type = False
trace_results_output = "D:/data/TraceLocations.gdb/OutLocations"
trace_results_input = None
filter_classes = ["UNLine", "UNEdgeObject"]
skip_found = False
compare_output_name = True
out_utility_network = None
remove_dup_groups = True
arcpy.udms.BuildStartingPoints(
in_utility_network=in_utility_network,
trace_config=trace_config,
starting_class=starting_class,
group_by_field=group_by_field,
expression=expression,
results_trace_config=results_trace_config,
trace_result_type=trace_result_type,
trace_results_output=trace_results_output,
trace_results_input=trace_results_input,
filter_classes=filter_classes,
skip_found=skip_found,
compare_output_name=compare_output_name,
out_utility_network=out_utility_network,
remove_dup_groups=remove_dup_groups,
)