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ListRasters

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Summary

Returns a list of the rasters in the current workspace.

Discussion

The workspace environment must be set before using several of the list functions, including ListDatasets, ListFeatureClasses, ListFiles, ListRasters, ListTables, and ListWorkspaces.

Syntax

ListRasters ({wild_card}, {raster_type})
ParameterExplanationData Type
wild_card

Limits the results returned. If a value is not specified, all values are returned. The wildcard is not case sensitive.

SymbolDescriptionExample

*

Represents zero or more characters.

Te* finds Tennessee and Texas.

String
raster_type

The raster type that will limit the results. The following are valid raster types:

  • BMP —Bitmap graphic raster dataset format.
  • GIF —Graphic Interchange Format for raster datasets.
  • IMG — ERDAS IMAGINE raster data format.
  • JP2 —JPEG 2000 raster dataset format.
  • JPG —Joint Photographics Experts Group raster dataset format.
  • PNG — Portable Network Graphics raster dataset format.
  • TIF —Tagged Image File for raster datasets.
  • GRID — Grid data format.
  • All —All supported raster types are returned. This is the default.

(The default value is All)

String

Return Value

Data TypeExplanation
String

The list returned from the function containing raster names in the workspace, limited by the optional wild_card and raster_type arguments.

Code sample

ListRasters example

List Grid raster names in the workspace.

import arcpy

# Set the current workspace
arcpy.env.workspace = "c:/data/DEMS"

# Get and print a list of GRIDs from the workspace
rasters = arcpy.ListRasters("*", "GRID")
for raster in rasters:
    print(raster)

Related topics

  • Create lists of data
  • Walk

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