Provides access to members that control raster storage properties. Note: the IRasterStorageDef interface has been superseded byIRasterStorageDef2. Please consider using the more recent version.
Product Availability
Members
| Description | ||
|---|---|---|
 |
CellSize | The cell size of the raster to be stored. |
 |
CompressionQuality | The compression quality (in case of JPEG compression) to be applied to the raster being stored. |
|
CompressionType | The compression type to be applied on the raster being stored. |
|
Origin | The origin of the raster to be stored. |
|
PyramidLevel | The number of pyramid levels. |
|
PyramidResampleType | The method used for pyramid resampling. |
|
TileHeight | The raster storage tile height. |
|
TileWidth | The raster storage tile width. |
CoClasses that implement IRasterStorageDef
| CoClasses and Classes | Description |
|---|---|
| RasterStorageDef | Raster Value Storage Definition Class. |
Remarks
The IRasterStorageDef interface provides
access to the storage parameters of a
RasterValue or a
RasterDataset , it allows you to set parameters
used to store raster data.
The CompressionQuality property specifies the
compression quality if the compression type is JPEG or JPEG 2000,
the valid range is 5 to 95 where 95 is the best quality. By
default, the compression quality is 75.
The CompressionType is an enumeration type of
property. It specifies the compression method to be used to
compress the raster data, LZ77 (lossless) and JPEG (lossy), and
JPEG 2000 compression types are supported. By default, the data is
compressed with LZ77.
The PyramidLevel property specifies the number of
pyramid layers to be built for the raster dataset. If you want the
geodatabase to build full pyramids with appropriate levels, use a
value of –1. If you do not want the pyramid to be built, use
0, or you can specify the level you see fit your dataset. By
default, the geodatabase builds full pyramid.
The PyramidResampleType determines which
resampling method will be used to compute the pyramid layers. For
categorical data, nearest neighbor resampling is best, while for
continuous data, bilinear interpolation or cubic convolution are
appropriate. By default, nearest neighbor resampling method is
used.
The TileHeight and TileWidth
properties determine the size of the storage block unit. The size
must be multiple of 16, such as 128 or 256. The default tile size
is 128 x 128 and it is good for most cases. For saving out a tiled
TIFF, IRaterStorageDef2:Tiled needs to set to be True.
The Origin property only applies for
enterprise geodatabase raster data. The origin is for pyramid
storage reference, so if mosaicking raster data to the lower-right
of the origin, the pyramids of the mosaic dataset will be built
partially instead of fully. This is not the origin of the
raster dataset extent.
The CellSize property applies to Personal, File
and ArcSDE geodatabases. Once it is set, any new data that are
mosaicked to it will be resampled to the specified cellsize. If not
set, the cellsize of the first raster dataset mosaicked to it will
be the cellsize of the mosaicked raster.
See Also
RasterCatalogItem Class | IRasterCatalogItem Interface | RasterValue Class | RasterCatalog Class | IRasterCatalogItem Interface