Image service GetPixelBlock method

Gets a pixel block from an image at a given raster ID and at block/tile location (tx, ty). A raster ID (RID) is the object ID of the catalog item containing the image.

GetPixelBlock(int RID, int Tx , int Ty, int Level)

Parameter

Description

RID

The raster ID.

Tx

The block/tile column number.

Ty

The block/tile row number.

Level

The pyramid level. The level 0 is the base image.

Return Value

A base64Binary object.

Remarks

The returned binary pixel block data is of the same format as that returned from GetImage().

The pixel block is positioned using block/tile column and row numbers based on a tiling scheme, i.e. the tile origin, the pixel size, and tile size. The pixel block is from the catalog item, which is after all function being applied on-the-fly.

The tiling information on an image can be obtained using GetRasterInfo(). The pixel block is from the catalog item, which is after all function being applied on-the-fly.

10/23/2013