FME considers a dataset to be a folder name. The feature type of each dataset is the filename. The SGI writer distinguishes duplicate output files by appending numbers to the filenames. Please see About FME Rasters for details.
SGI supports rasters with any number of bands that have a UInt8 data type.
The file extension for output files is determined by band interpretations.
- A raster with a Red8, Green8, and Blue8 band will have an extension of .rgb
- A raster with a Red8, Green8, Blue8, and Alpha8 band will have an extension of .rgba
- A raster with a Gray8 band will have an extension of .bw
- All other combinations of bands will have an extension of .sgi
SGI Image files will always be written as Run Length Encoded.
Workbench Writer Parameters
This format does not contain format-specific writer-level parameters.