Sun Raster Reader/Writer

Licensing options for this format begin with FME Professional Edition.

The Sun Raster (SUNRASTER) Reader/Writer allows FME to access data in the Sun Raster format.

Overview

The Sun Raster image file format is the native bitmap format of the Sun Microsystems UNIX platforms using the SunOS operating system. This format is capable of storing greyscale and color images. The use of palettes and a simple Run-Length data compression are also supported.

Reader Overview

FME considers a single Sun Raster file to be a dataset. Each dataset contains a single FME raster feature.

Writer Overview

FME considers a dataset to be a folder name. The feature type of each dataset is the filename. The writer distinguishes duplicate output files by appending numbers to the filenames.

FME Raster Features

FME raster features represent raster data and use several concepts that are unlike those used in the handling of vector data. The topics below describe how FME processes raster data.

About FME Rasters	Tiling and Mosaicking
Raster Properties	Band Combining and Separating
Band Properties	Band and Palette Selection
Palette Properties	Raster Processing
Compression	Raster versus Vector Features
Pyramiding	Raster File Naming
Interleaving	World Files
Interpretation and Data Type	TAB Files
Palette Resolution

SUNRASTER supports rasters with the following structures:

a Gray8 band
a Red8 band, a Green8 band, a Blue8 band, and optionally one more band with a UInt8 data type
a UInt8 band with an RGB24 palette