Краткая информация
Converts hydrographic polygon features into individual polyline centerlines. This tool is used by the Esri Defense Mapping solution to create polyline hydrographic features at scales where a polygon feature is inappropriate or not useful. It produces an approximate centerline from input polygons. This centerline serves as a polyline representation of the original polygon feature.
Использование
This tool creates one polyline centerline for each input hydro area polygon.
This tool will copy attribute values from Hydro Area Input Features to Hydro Polyline Output Features if both share identical field names and definitions.
Hydro Area Input Features and Hydro Polyline Output Features must have the same coordinate system.
Синтаксис
EGBHydroCenterline(in_polygon_features, in_polyline_features)
| Параметр | Объяснение | Тип данных |
in_polygon_features | The polygon features from which centerlines will be generated. | Feature Layer |
in_polyline_features | A preexisting polyline feature class. | Feature Layer |
Пример кода
Hydro Centerline example (stand-alone script)
The following stand-alone script demonstrates how to use the Hydro Centerline tool.
# HydroCenterline_Example.py
# Description:
# Requirements: Esri Defense Mapping solution, 3D Analyst extension, Spatial Analyst extension
# Import arcpy module
import arcpy
# Check out a DefenseMapping extension license
arcpy.CheckOutExtension("3d")
arcpy.CheckOutExtension("foundation")
arcpy.CheckOutExtension("defense")
arcpy.env.workspace = "c:\\data\\HydroTest.gdb"
inPolyFeatures = "HydrographySrf"
inPolylineFeatures = "HydrographyCrv"
# Create 2 feature layers for processing
arcpy.MakeFeatureLayer_management(inPolyFeatures,'inPolyFeats')
arcpy.MakeFeatureLayer_management(inPolylineFeatures,'inPolyLineFeats')
# execute the EGB Hydro Centerline tool
arcpy.EGBHydroCenterline_defense('inPolyFeats', 'inPolyLineFeats')
print arcpy.GetMessages()
# Check in the extensions
arcpy.CheckInExtension("3d")
arcpy.CheckInExtension("foundation")
arcpy.CheckInExtension("defense")
Параметры среды
Информация о лицензиях
- ArcGIS Desktop Basic: Нет
- ArcGIS Desktop Standard: Требует Defense Mapping and Spatial Analyst and 3D Analyst
- ArcGIS Desktop Advanced: Требует Defense Mapping and Spatial Analyst and 3D Analyst