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Raster Dataset properties

Résumé

The Describe function returns the following properties for Raster Datasets. Dataset Properties are also supported. Single-band raster datasets also support Raster Band Properties.

A Raster Dataset returns a dataType of "RasterDataset".

Propriétés

PropriétéExplicationType de données
bandCount
(Lecture seule)

The number of bands in the raster dataset.

Integer
compressionType
(Lecture seule)

The compression type

  • CCITT Group 3
  • CCITT Group 4
  • CCITT (1D)
  • DEFLATE
  • Deflate/Inflate
  • JPEG
  • JPEG2000
  • LZW
  • LZ77
  • None
  • PACKBITS
  • RLE
  • VECTOR QUANTIZATION
  • Wavelet (MG2)
  • Wavelet (MG4)
  • YCbCr JPEG
String
format
(Lecture seule)

The raster format

  • AAIGrid
  • BAG
  • BIL
  • BMP
  • BSQ
  • DTED Level 1
  • DTED Level 2
  • FGDBR
  • FLT
  • GIF
  • GRID
  • GRID Stack 7.x
  • HDF5Image
  • IMAGINE Image
  • JFIF
  • JP2
  • MrSID
  • NITF
  • PNG
  • RPF
  • SDR
  • TIFF
  • TIL
  • USGSDEM
String
permanent
(Lecture seule)

Indicates the permanent state of the raster: False if the raster is temporary and True if the raster is permanent.

Boolean
sensorType
(Lecture seule)

The sensor type used to capture the image.

String

Exemple de code

Raster Dataset properties example (stand-alone script)

The following stand-alone script displays some properties for a raster dataset. 

import arcpy

# Create a Describe object from the raster dataset
#
desc = arcpy.Describe("C:/data/preston.img")

# Print some raster dataset properties
# 
print "Band Count:       %d" % desc.bandCount
print "Compression Type: %s" % desc.compressionType
print "Raster Format:    %s" % desc.format