Summary
Creates a temporary feature layer using routes and route events.
When the temporary layer is used (displayed on a map, or used by another geoprocessing tool), dynamic segmentation is performed.
Usage
The input table can be any type of table ArcGIS supports.
Use the Make Feature Layer tool on the routes and/or the Make Table View tool on the events prior to this tool to reduce the number of routes and events that will be processed.
Not all types of tables have an ObjectID field. When such tables are used by this tool the resulting layer will not be selectable and cannot be used effectively by certain geoprocessing operations. Consider using the Make Query Table tool prior to this tool to add a virtual ObjectID field.
Temporary layers are stored in memory and can be used as input to other geoprocessing functions in your current ArcCatalog or ArcMap session.
In ArcMap, temporary feature layers can be displayed if you have indicated that you want to add results of geoprocessing operations to the display under Geoprocessing > Geoprocessing Options... > Add results of geoprocessing operations to the display.
Once you exit ArcCatalog or ArcMap, temporary feature layers are removed from memory. To persist a temporary layer on disk, use the Save To Layer File or Copy Features tools.
Syntax
MakeRouteEventLayer(in_routes, route_id_field, in_table, in_event_properties, out_layer, {offset_field}, {add_error_field}, {add_angle_field}, {angle_type}, {complement_angle}, {offset_direction}, {point_event_type})
Parameter | Explanation | Data Type |
in_routes | The route features upon which events will be located. | Feature Layer |
route_id_field | The field containing values that uniquely identify each route. | Field |
in_table | The table whose rows will be located along routes. | Table View |
in_event_properties | Parameter consisting of the route location fields and the type of events in the input event table.
| Route Measure Event Properties |
out_layer | The layer to be created. This layer is stored in memory, so a path is not necessary. | Feature Layer |
offset_field (Optional) | The field containing values used to offset events from their underlying route. This field must be numeric. | Field |
add_error_field (Optional) | Specifies whether a field named LOC_ERROR will be added to the temporary layer that is created.
| Boolean |
add_angle_field (Optional) | Specifies whether a field named LOC_ANGLE will be added to the temporary layer that is created. This parameter is only valid when the event type is POINT.
| Boolean |
angle_type (Optional) | Specifies the type of locating angle that will be calculated. This parameter is only valid if add_angle_field = "ANGLE_FIELD".
| String |
complement_angle (Optional) | Specifies whether the complement of the locating angle will be calculated. This parameter is only valid if add_angle_field = "ANGLE_FIELD".
| Boolean |
offset_direction (Optional) | Specifies the side on which the route events with a positive offset are displayed. This parameter is only valid if an offset field has been specified.
| Boolean |
point_event_type (Optional) | Specifies whether point events will be treated as point features or multipoint features.
| Boolean |
Code sample
MakeRouteEventLayer example 1 (Python window)
import arcpy
arcpy.env.workspace = "C:/Data"
arcpy.MakeRouteEventLayer_lr("route_hwy.shp", "rkey", "accident.dbf",
"rkey POINT mile", "accident_events", "#",
"ERROR_FIELD", "ANGLE_FIELD")
MakeRouteEventLayer example 2 (stand-alone script)
The following Python script demonstrates how to use the MakeRouteEventLayer function in a stand-alone Python script.
# Name: MakeRouteEventLayer_Example2.py
# Description: Make a POINT event layer. Routes and events are in a shapefile workspace.
# An error field and an angle field are added to the new layer. The new layer can be used
# by other geoprocessing functions.
# Import system modules
import arcpy
# Set workspace
arcpy.env.workspace = "C:/Data"
# Set local variables
rt = "route_hwy.shp"
rid = "rkey"
tbl = "accident.dbf"
props = "rkey POINT mile"
lyr = "accident_events"
# Execute MakeRouteEventLayer
arcpy.MakeRouteEventLayer_lr(rt, rid, tbl, props, lyr, "#", "ERROR_FIELD",
"ANGLE_FIELD")
MakeRouteEventLayer example 3 (stand-alone script)
The following Python script demonstrates how to use the MakeRouteEventLayer function in a stand-alone Python script.
# Name: MakeRouteEventLayer_Example3.py
# Description: Make a LINE event layer. Routes and events are in a file geodatabase.
# An error field is added to the new layer. The new layer can be used by other
# geoprocessing functions.
# Import system modules
import arcpy
# Set workspace
arcpy.env.workspace = "C:/Data/pitt.gdb"
# Set local variables
rt = "roads/hwy" # the 'hwy' feature class is in the 'roads' feature dataset
rid = "rkey"
tbl = "pavecond"
props = "rkey LINE fmp tmp"
lyr = "pave_events"
# Execute MakeRouteEventLayer
arcpy.MakeRouteEventLayer_lr(rt, rid, tbl, props, lyr, "#", "ERROR_FIELD")
MakeRouteEventLayer example 4 (stand-alone script)
The following Python script demonstrates how to use the MakeRouteEventLayer function in a stand-alone Python script using enterprise geodatabase data.
# Name: MakeRouteEventLayer_Example4.py
# Description: Make a POINT event layer. Routes and events are in an enterprise geodatabase.
# The new layer can be used by other geoprocessing functions.
# Import system modules
import arcpy
# Set workspace
arcpy.env.workspace = "C:/MyProject/myConn.sde"
# Set local variables
ds = arcpy.ValidateTableName("roads", wkspc) # the 'roads' feature dataset
fc = arcpy.ValidateTableName("hwy", wkspc) # the 'hwy' feature class
rt = ds + "/" + fc # the 'hwy' feature class is in the 'roads' feature dataset
rid = "rkey"
tbl = "accident"
props = "rkey POINT mile"
lyr = "accident_events2"
# Execute MakeRouteEventLayer
arcpy.MakeRouteEventLayer_lr(rt, rid, tbl, props, lyr)
MakeRouteEventLayer example 5 (stand-alone script)
The following Python script demonstrates how to use the MakeRouteEventLayer function in a stand-alone Python script using personal geodatabase data.
# Name: MakeRouteEventLayer_Example5.py
# Description: Make a LINE event layer. Routes and events are in a personal geodatabase.
# An error field is added to the new layer. The new layer can be used by other
# geoprocessing functions.
# Import system modules
import arcpy
# Set workspace
arcpy.env.workspace = "C:/Data/pitt.mdb"
# Set local variables
rt = "roads/hwy" # the 'hwy' feature class is in the 'roads' feature dataset
rid = "rkey"
tbl = "pavecond"
props = "rkey LINE fmp tmp"
lyr = "pave_events"
# Execute MakeRouteEventLayer
arcpy.MakeRouteEventLayer_lr(rt, rid, tbl, props, lyr, "#", "ERROR_FIELD")
Environments
Licensing information
- Basic: Yes
- Standard: Yes
- Advanced: Yes