Count Rendering (Spatial Statistics)

License Level:BasicStandardAdvanced

Summary

Applies graduated circle rendering to a numeric field in a feature class.

Illustration

Count Renderer illustration

Usage

Syntax

CountRenderer_stats (input_feature_class, field_to_render, output_layer_file, number_of_classes, symbol_color, {maximum_field_value})
ParameterExplanationData Type
input_feature_class

The feature layer containing count data to be rendered.

Feature Layer
field_to_render

The name of the field containing count data.

Field
output_layer_file

The new output layer file containing rendering information. You must include the .lyr extension as part of the file name.

Layer File
number_of_classes

The number of classes into which the input feature class will be classified.

Long
symbol_color

The color of the graduated circles.

  • MANGO
  • BRIGHT_RED
  • DARK_GREEN
  • GREEN
  • DARK_BLUE
  • BRIGHT_PINK
  • LIGHT_YELLOW
  • SKY_BLUE
String
maximum_field_value
(Optional)

The maximum attribute value that will be rendered. Features with field values greater than this maximum value will not be drawn.

Double

Code Sample

CountRenderer example 1 (Python window)

The following Python window script demonstrates how to use the CountRenderer tool.

import arcpy
arcpy.env.workspace = "c:/data"
arcpy.CountRenderer_stats("autotheft_weighted.shp", "Count", "auto_weight_rendered.lyr", "5", "mango","#")
CountRenderer example 2 (stand-alone Python script)

The following stand-alone Python script demonstrates how to use the CountRenderer tool.

# Convert incident data to weighted point data and render
 
# Import system modules
import arcpy, sys, string, os
 
# Local variables...
workspace = "C:/data"
input = "AutoTheft.shp"
input_weighted = "autotheft_weighted.shp"
results_field = "Count"
input_weighted_rendered = "auto_weight_rendered.lyr"
 
try:
    # Set the current workspace (to avoid having to specify the full path to the feature classes each time)
    arcpy.env.workspace = workspace
 
    # Process: Collect Events...
    arcpy.CollectEvents_stats(input, input_weighted, results_field)
 
    # Process: Count Rendering...
    arcpy.CountRenderer_stats(input_weighted, results_field, input_weighted_rendered, "5", "MANGO", "#")
 
except:
    # If an error occurred when running the tool, print out the error message.
    print arcpy.GetMessages()

Environments

Related Topics

Licensing Information

ArcGIS for Desktop Basic: Yes
ArcGIS for Desktop Standard: Yes
ArcGIS for Desktop Advanced: Yes
8/26/2014