Sun Raster Reader/Writer

FME Format Type Identifier

SUNRASTER

Reader/Writer

Both

Typical File Extensions

. ras, .sun

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 grayscale and color images. The use of palettes and a simple Run-Length data compression are also supported.

Sun Raster Product and System Requirements

Format

Product

Operating System

Reader/Writer

FME Desktop License

FME Server

FME Cloud

Windows

Linux

Mac

Reader

Available in all FME editions

Yes

Yes

32-bit: Yes

64-bit: Yes

Yes

Yes

Writer

Available in all FME editions

Yes

Yes

32-bit: Yes

64-bit: Yes

Yes

Yes

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