ArcMap

Mosaic Dataset properties

Summary

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".

Properties

PropertyExplanationData Type
allowedCompressionMethods
(Read Only)

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
(Read Only)

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

String
allowedMensurationCapabilities
(Read Only)

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
(Read Only)

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
(Read Only)

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

Boolean
blendWidth
(Read Only)

The distance used by the Blend mosaic operator.

Double
blendWidthUnits
(Read Only)

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
(Read Only)

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

Double
childrenNames
(Read Only)

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

String
clipToBoundary
(Read Only)

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
(Read Only)

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

Boolean
defaultCompressionMethod
(Read Only)

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

String
defaultMensurationCapability
(Read Only)

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
(Read Only)

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

String
MosaicOperator
(Read Only)

The default method for resolving overlapping cells.

  • FIRST —The output cell value of the overlapping areas will be the value from the first raster dataset mosaicked into that location.
  • LAST —The output cell value of the overlapping areas will be the value from the last raster dataset mosaicked into that location. This is the default.
  • BLEND —The output cell value of the overlapping areas will be a horizontally weighted calculation of the values of the cells in the overlapping area.
  • MEAN —The output cell value of the overlapping areas will be the average value of the overlapping cells.
  • MINIMUM —The output cell value of the overlapping areas will be the minimum value of the overlapping cells.
  • MAXIMUM —The output cell value of the overlapping areas will be the maximum value of the overlapping cells.
  • SUM —The output cell value of the overlapping areas will be the total sum of the overlapping cells.
String
defaultResamplingMethod
(Read Only)

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
SortAscending
(Read Only)

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
(Read Only)

The field that defines the end time.

String
footprintMayContainNoData
(Read Only)

True if NoData is a valid pixel value.

Boolean
GCSTransforms
(Read Only)

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

String
JPEGQuality
(Read Only)

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

Long
LERCTolerance
(Read Only)

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

Double
maxDownloadImageCount
(Read Only)

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

Long
maxDownloadSizeLimit
(Read Only)

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

Long
maxRastersPerMosaic
(Read Only)

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

Long
maxRecordsReturned
(Read Only)

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

Long
maxRequestSizeX
(Read Only)

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

Long
maxRequestSizeY
(Read Only)

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

Long
minimumPixelContribution
(Read Only)

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
(Read Only)

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
(Read Only)

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

String
rasterMetadataLevel
(Read Only)

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
(Read Only)

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

Boolean
startTimeField
(Read Only)

The field that defines the start time.

String
timeValueFormat
(Read Only)

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

String
useTime
(Read Only)

True if the mosaic dataset is time aware.

Boolean
viewpointSpacingX
(Read Only)

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
(Read Only)

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