Symbolize by Dot Density (Business Analyst)

Zusammenfassung

Thematically maps a feature class based on a numeric field as dots on the map to convey the intensity of an attribute.

Verwendung

Syntax

SymbolizeByDotDensity_ba (InputFeatureLayer, Field, DotSizeParameterName, ColorParameterName, {UseSelectedFeatures})
ParameterErläuterungDatentyp
InputFeatureLayer

The input feature layer.

Feature Layer
Field

The attribute field used to define the thematic map.

String
DotSizeParameterName

The numeric value that represents the field selection to be symbolized.

Double
ColorParameterName

The color assigned to the points to be symbolized.

Long
UseSelectedFeatures
(optional)

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

  • TRUEUses only selected features to generate the thematic map.
  • FALSEUses all features to generate the thematic map. This is the default.
Boolean

Codebeispiel

SymbolizeByDotDensity Example (Stand-alone Script)
# Name: SymbolizeByDotDensity.py
# Description: Symbolizes block groups by dot density using total population.
# Author: ESRI

# Import system modules
import arcpy

arcpy.ImportToolbox("C:\Program Files\ArcGIS\Desktop10.0\ArcToolbox\Toolboxes\Business Analyst Tools.tbx")

try:
  # Acquire extension license 
  arcpy.CheckOutExtension("Business")
 
  # Defines the parameters for the Symbolize by Dot Density tool
  Input = "C:/Program Files/ArcGIS/Desktop10.0/Business Analyst/Data/BDS/esri_bg.bds"
  Fld= "TOTPOP_CY"
 
  # Thematically symbolizes a polygon layer by dot density
  # Red point is –65536
  arcpy.SymbolizeByDotDensity_ba(sInput, sFld, 10, –65536)
 
  # Release extension license 
  arcpy.CheckInExtension("Business") 
 
except:
  print arcpy.GetMessages(2)

Umgebungen

Dieses Werkzeug verwendet keine Geoverarbeitungsumgebungen.

Verwandte Themen

Lizenzinformationen

ArcView: Erfordert Business Analyst
ArcEditor: Erfordert Business Analyst
ArcInfo: Erfordert Business Analyst

10/4/2010