Mosaic Dataset properties (arcpy)

Récapitulatif

The Describe function returns the following properties for Mosaic Datasets. Raster Dataset Properties and Dataset Properties are also supported. Editor Tracking Properties are supported if editor tracking has been enabled for this mosaic dataset.

A Mosaic Dataset returns a dataType of "MosaicDataset".

Learn more about Mosaic Dataset properties

Propriétés

PropriétéExplicationType de données
allowedCompressionMethods
(Lecture seule)

The methods of compression that could be used to transmit the mosaicked image from the server to the client. This property influences an image service generated from the mosaic dataset.

  • None —No compression
  • LZ77 —LZ77 compression
  • JPEG —JPEG compression
  • LERC —LERC compression
String
allowedFields
(Lecture seule)

The attribute table fields visible to the client when the mosaic dataset is served as an image service.

String
allowedMensurationCapabilities
(Lecture seule)

The mensuration tools can be used with an image service.

  • None — No mensuration tools can be used.
  • Basic — The Distance, Area, Point Location, and Centroid Location mensuration tool can be used.
  • Base-Top Height — The height of a structure is calculated by measuring from the base of the structure to the top of the structure.
  • Top-Top Shadow Height — The height of a structure is calculated by measuring from the top of the structure to the top of the structure's shadow on the ground.
  • Base-Top Shadow Height — The height of a structure is calculated by measuring from the base of the structure to the top of the structure's shadow on the ground.
  • 3D — Used to determine the heights of your 3D features such as buildings, when a DEM is available.
String
allowedMosaicMethods
(Lecture seule)

The order of the rasters mosaicked together to render the mosaicked display.

  • None — Orders rasters based on the order (ObjectID) in the mosaic dataset attribute table.
  • Closest to Center — Enables rasters to be sorted based on a default order where rasters that have their centers closest to the view center are placed on top.
  • Closest to Nadir — Enables rasters to be sorted by the distance between the nadir position and view center. This is similar to the Closest to Center method but uses the nadir point to a raster, which may be different than the center, especially for oblique imagery.
  • Closest to Viewpoint — Orders rasters based on a user-defined location and nadir location for the rasters using the Viewpoint tool.
  • By Attribute — Enables raster ordering based on a defined metadata attribute and its difference from a base value.
  • North-West — Enables raster ordering in a view-independent way, where rasters with their centers to the northwest are displayed on top.
  • Seamline — Cuts the raster using the predefined seamline shape for each raster using optional feathering along the seams and orders images based on the SOrder field in the attribute table.
  • Lock Raster — Enables a user to lock the display of single or multiple rasters based on the ObjectID.
String
applyColorCorrection
(Lecture seule)

If color correction information is available in the mosaic dataset, then a value of True means it will be applied.

Boolean
blendWidth
(Lecture seule)

The distance used by the Blend mosaic operator.

Double
blendWidthUnits
(Lecture seule)

The units in which the blend width is specified.

  • Pixels — The blend width is measured in pixels.
  • Mosaic Dataset Unit — The unit for the blend width will be in the same units as mosaic dataset.
String
cellSizeToleranceFactor
(Lecture seule)

How mosaic dataset items with different pixel sizes are grouped together for some operations, such as mosaicking or seamline generation.

Double
childrenNames
(Lecture seule)

A list of side table names that are components of the mosaic dataset.

String
clipToBoundary
(Lecture seule)

True means the image extent is limited to the geometry of the boundary. False means it is limited to the extent of the boundary.

Boolean
clipToFootprint
(Lecture seule)

Whether the extent of each raster is limited to its footprint.

Boolean
defaultCompressionMethod
(Lecture seule)

The default compression method for the image. This value comes from the list of methods returned by the allowedCompressionMethods property.

String
defaultMensurationCapability
(Lecture seule)

The default mensuration tool that will be used with an image service. This value comes from the list returned by the allowedMensurationCapabilities property.

String
defaultMosaicMethod
(Lecture seule)

The default mosaic method for the mosaicked image. This value comes from the list returned by the allowedMosaicMethods property.

String
defaultMosaicOperator
(Lecture seule)

The default method for resolving overlapping cells.

  • FIRST —La valeur de la cellule en sortie des zones superposées sera celle issue du premier jeu de données raster mosaïqué à cet emplacement.
  • LAST —La valeur de la cellule en sortie des zones superposées sera celle issue du dernier jeu de données raster mosaïqué à cet emplacement. Il s'agit de l'option par défaut.
  • BLEND —La valeur de cellule en sortie des zones superposées sera un calcul horizontalement pondéré des valeurs des cellules dans la zone superposée.
  • MOYENNE —La valeur de la cellule en sortie des zones superposées sera la valeur moyenne des cellules superposées.
  • MINIMUM —La valeur de la cellule en sortie des zones superposées sera la valeur minimale des cellules superposées.
  • MAXIMUM —La valeur de la cellule en sortie des zones superposées sera la valeur maximale des cellules superposées.
  • SUM —La valeur de la cellule en sortie des zones superposées sera la somme totale des cellules superposées.
String
defaultResamplingMethod
(Lecture seule)

The default sampling method of the pixels.

  • NEAREST — The nearest neighbor resampling method will be used.
  • BILINEAR — The bilinear interpolation resampling method will be used.
  • CUBIC — The cubic convolution resampling method will be used.
  • MAJORITY — The majority resampling method will be used.
String
defaultSortingOrder
(Lecture seule)

The default ordering of the images defined by the mosaic methods.

  • ASCENDING — Rasters will be sorted in ascending order.
  • DESCENDING — Rasters will be sorted in descending order.
String
endTimeField
(Lecture seule)

The field that defines the end time.

String
footprintMayContainNoData
(Lecture seule)

True if NoData is a valid pixel value.

Boolean
GCSTransforms
(Lecture seule)

The transformations applied if the spatial references of the source rasters differ from the spatial reference of the mosaic dataset.

String
JPEGQuality
(Lecture seule)

The percentage of image quality retained if JPEG compression is used on this dataset.

Long
LERCTolerance
(Lecture seule)

The maximum error value applied per pixel if the mosaic dataset uses LERC compression.

Double
maxDownloadImageCount
(Lecture seule)

The maximum number of rasters that a client can download from an image service.

Long
maxDownloadSizeLimit
(Lecture seule)

The maximum size, in megabytes, of rasters that a client can download from an image service.

Long
maxRastersPerMosaic
(Lecture seule)

The maximum number of rasters mosaicked. This property affects an image service generated from the mosaic dataset.

Long
maxRecordsReturned
(Lecture seule)

Maximum number of records returned by the server when viewing the mosaic dataset as a published image service.

Long
maxRequestSizeX
(Lecture seule)

The maximum number of columns each time a mosaicked image is generated.

Long
maxRequestSizeY
(Lecture seule)

The maximum number of rows each time a mosaicked image is generated.

Long
minimumPixelContribution
(Lecture seule)

The minimum number of pixels needed within the area of interest in order for a mosaic dataset item to be considered as part of that area.

Long
orderBaseValue
(Lecture seule)

The images are sorted based on the difference between this value and the value specified in the orderField. This is applicable only for the By Attribute mosaic method.

Double
orderField
(Lecture seule)

The metadata attribute used for raster ordering. This is applicable only for the By Attribute mosaic method.

String
rasterMetadataLevel
(Lecture seule)

How much metadata will be transmitted from the server to the client.

  • None — No metadata will be transmitted.
  • Full — The basic raster dataset information and the function chain's details will be transmitted.
  • Basic — The raster dataset level of information will be transmitted, such as the columns and rows, cell size, and spatial reference information.
String
referenced
(Lecture seule)

True if it is a referenced mosaic dataset. False if it is a regular mosaic dataset.

Boolean
startTimeField
(Lecture seule)

The field that defines the start time.

String
timeValueFormat
(Lecture seule)

The format in which the start time and end times are specified.

String
useTime
(Lecture seule)

True if the mosaic dataset is time aware.

Boolean
viewpointSpacingX
(Lecture seule)

The horizontal offset used to calculate where the center of the area of interest (display view) is when you click an arrow button on the Viewpoint dialog box. These values are calculated in the units of the spatial reference system of the mosaic dataset. This is applicable only for the Closest to Viewpoint mosaic method.

Double
viewpointSpacingY
(Lecture seule)

The vertical offset used to calculate where the center of the area of interest (display view) is when you click an arrow button on the Viewpoint dialog box. These values are calculated in the units of the spatial reference system of the mosaic dataset. This is applicable only for the Closest to Viewpoint mosaic method.

Double
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4/26/2014