Aggregate Polygons (Production Mapping)
Краткая информация
Combines polygons that are smaller than a defined size with other polygons that are within a specified distance of another feature.
Рисунок
Использование
A warning is raised if the input features are not in a projected coordinate system. This tool relies on linear distance units, which will create unexpected results in an unprojected coordinate system. It is strongly suggested that you run this tool on data in a projected coordinate system to ensure valid results. An error is raised and the tool will not process if the coordinate system is missing or unknown.
This tool cannot be run on data that is registered as versioned.
If this tool is run in an edit session in ArcMap, you can stop the edit session without saving changes to restore features that have been deleted.
Внимание:Этот инструмент изменяет входные данные. Более подробно о стратегиях предотвращения неожиданных изменений данных см. в разделе Инструменты, не создающие выходных данных (Tools with no outputs).
Синтаксис
| Параметр | Объяснение | Тип данных |
Input_Polygon_Features |
Polygon feature class that contains the features that will be combined. The features in this feature class will be modified. | Feature Layer |
Combine_Field |
The values in this field will be compared when combining features. If both features have the same value, the features will be combined. If both features have values and the values are different, the features will not be combined. If one feature has a value and the other is blank or empty, the Combine_features_with_blank_values_to_features_with_values parameter will determine if the features will be combined. | Field |
Minimum_Size |
Features smaller than the specified minimum size will be combined. | Areal unit |
Distance | The tolerance that can exist between two features before they are combined. Features that are separated by less than this distance will be combined. | Linear unit |
Combine_features_with_blank_values_to_features_with_values (дополнительно) |
Indicates whether features will be merged when one feature has a blank or null value in the field designated in the Combine_Field parameter.
| Boolean |
Пример кода
This script merges building features that are within 32 feet of each other and have a GNISid value of 6006.
# Name: AggregatePolygonsExample.py
# Description: Combines polygons that are below a specified size and within a certain
# distance of another feature
# Author: Esri
# Date: February 2014
import arcpy
# Check out Production Mapping license & set environment
arcpy.CheckOutExtension("Foundation")
arcpy.env.workspace="c:/Data/LocalGovernment.gdb"
# Define variables
inFeatures="ReferenceData/FacilitySite"
inFeatLayer="facilities"
combineField='FCODE'
distance='220 Feet'
where = "SHAPE_Area < 500000"
# Create a feature layer for Aggregate Polygons
arcpy.MakeFeatureLayer_management(inFeatures,inFeatLayer,where)
# Aggregate the polygon features
arcpy.AggregatePolygons_production(inFeatLayer,combineField,distance)