Idrisi Raster Image .RST, .IMG File Description

 

The Idrisi Raster Image filter imports the Idrisi Raster Image .RST format. It requires the associated .RCS file to be present in the same directory. Sometimes there is also an associated .REF file, depending on the refsystem member of the IDR_RDC struct inside the file.

 

File Description

Idrisi grids have either a .RST or .IMG extension. Every data set come with a set of files including a .DOC or .RDC file. The Idrisi Raster Image filter supports all Idrisi grid types except the RGB type.

 

The associated .RDC file must be present in the same directory as the .RST. Sometimes there is also an associated .REF file, depending on the refsystem member of the IDR_RDC struct.

 

·      The old IDrisi data sets consist of paired .IMG/.DOC.

·      The New IDrisi data sets consist of paired .RST/.RDC.

·      Allowable .RST/.IMG formats are ASCII, Binary and Packed Binary forms. However, most routines in the IDRISI application expect the binary format only.

 

File Format

IDRISI starts in the upper-left corner (row 0/column 0), then advances column by column and row by row.

 

File Name Extensions

.RST/.RDC, .IMG/.DOC

 

Import Method

Choose the File | Import command.

 

Import Options

Specify import options in the Lattice Import Options dialog

 

 

See Also

File Format Chart

File | Import

Lattice Import Options