ArcMap

Symbolize by Numeric Field

Mit der Business Analyst-Lizenz verfügbar.

Zusammenfassung

Thematically maps a feature class based on a numeric field

Learn more about how Symbolize by Numeric Field works

Verwendung

  • Displaying points as different colors based on the values of a numeric attribute is an example of a graduated colormap. This kind of map is useful for showing data that is ranked (such as 1 to 10 or low to high) or has numerical progression (such as measurements, counts, rates, or percentages) since colors don't necessarily imply a magnitude.

Syntax

arcpy.ba.SymbolizeByNumericField(InputFeatureLayer, Field, ClassificationSchemeParameterName, {NameField}, {UseSelectedFeatures}, {ColorSchemeParameterName})
ParameterErklärungDatentyp
InputFeatureLayer

The input feature layer.

Feature Layer
Field

The attribute field used to define the thematic map.

Field
ClassificationSchemeParameterName

The classification methods to thematically map your input feature class.

  • Natural Breaks —Uses natural breaks classification to produce a thematic map.
  • Std Deviation —Uses standard deviation classification method to produce a thematic map.
  • Equal Interval —Uses equal interval classification method to produce a thematic map.
  • Quantile —Uses quantile classification method to produce a thematic map.
String
NameField
(optional)

The attribute field used in the normalization calculations.

Field
UseSelectedFeatures
(optional)

Identifies the features that will be used to generate the thematic map.

  • TRUE —Uses only selected features to generate the thematic map.
  • FALSE —Uses all features to generate the thematic map. This is the default.
Boolean
ColorSchemeParameterName
(optional)

The color scheme for the thematic map.

String

Codebeispiel

SymbolizeByNumericField example (stand-alone script)

# Name: SymbolizeByNumericField.py
# Description: Symbolizes block groups by total population.
# Author: Esri

# Import system modules
import arcview
import arcpy

arcpy.ImportToolbox(r"C:\Program Files (x86)\ArcGIS\Desktop10.8\Business Analyst\ArcToolbox\Toolboxes\Business Analyst Tools.tbx")

try:
# Acquire extension license 
  arcpy.CheckOutExtension("Business") 
 
# Defines the parameters for the Symbolize by Numeric Field tool
  InputFeatureLayer = "C:/ArcGIS/Business Analyst/US_2022/Data/Demographic Data/BlockGroups_bg.bds"
  Field = "TOTPOP_CY"
  ClassificationSchemeParameterName = "Equal Interval"
 
# Thematically symbolizes a layer by a numeric field
  arcpy.SymbolizeByNumericField_ba(InputFeatureLayer, Field, ClassificationSchemeParameterName)
 
# Release extension license 
arcpy.CheckInExtension("Business")

Umgebungen

Dieses Werkzeug verwendet keine Geoverarbeitungsumgebungen.

Lizenzinformationen

  • Basic: Erfordert Business Analyst
  • Standard: Erfordert Business Analyst
  • Advanced: Erfordert Business Analyst

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