GeoImageDescription

A class for specifying an image to fetch from an image service, including spatial reference, pixel size, extent, compression and quality, NoData (background) value, band selection, and etc.

A mosaic rule can be used to specify how mosaic should be performed if more than one images involved within the requested area of interest. A rendering rule can be used to define how rendering should be done on the raw pixels. For example, a hillshade rendering rule can be used to generate a hillshaded image from float-point elevation data.

Property	Type	Description
BandSelection	int[]	The band selection containing a list of band numbers. The band number starts from 0.
BSQ	bool	Indicates the format used in data transfer. True means transfer as BSQ format (band sequential). If not set, or set to false, it will use BIP (band interleaved by pixel) format.
BSQSpecified	bool	Indicates if BSQ is specified.
Compression	string	The compression type used in transmission. Supported compressions include None, LZ77, and JPEG.
CompressionQuality	int	The JPEG compression quality in value range 1-100.
CompressionQualitySpecified	bool	Indicates if CompressionQuality is specified.
Extent	Envelope	The requested extent.
Height	int	The requested image height in pixels.
Interpolation	rstResamplingTypes	The interpolation method used to resample image data.
InterpolationSpecified	bool	Indicates if Interpolation is specified.
MosaicProperties	string	The mosaic properties containing information controlling how mosaic should be performed, such as mosaic method, etc. The mosaic properties is a XML formatted string. The following are sample mosaic properties: <MosaicMethod>Center</MosaicMethod> <MosaicMethod>ByAttribute</MosaicMethod> <TileOrderField>Month</TileOrderField><TileOrderBase>6</TileOrderBase>
MosaicRule	MosaicRule	Specifies the mosaic rules when defining how individual images should be mosaicked. It specifies selection, mosaic method, sort order, overlapping pixel resolution, etc.
NoData	object	The output NoData (background) value. The variant data type does not have to match the pixel type. It can be empty or outside the pixel value range. This indicates the service does not have a predefined NoData value, and will not fill NoData pixels with a predefined value.
NoDataInterpretation	esriNoDataInterpretation	The interpretation of NoData; to match any band or all bands.
PixelType	rstPixelType	The requested image pixel type.
PixelTypeSpecified	bool	Indicates if PixelType is specified.
RenderingRule	RenderingRule	Specifies the rendering rules for how requested images should be rendered. It specifies a raster function for processing pixel pixels, and raster renderer for rendering raw data into an image.
SpatialReference	SpatialReference	The requested spatial reference.
ViewpointProperties	string	The view point properties. The view point properties is a XML formatted string. The following are sample view point properties: <ViewPointX>4489898.428</ViewPointX><ViewPointY>5478905.02941413</ViewPointY>
Width	int	The requested image width in pixels.