Surfer 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.
IDRISI starts in the upper-left corner (row 0/column 0), then advances column by column and row by row.
Idrisi grids have either a .RST or .IMG extension. Every data set come with a set of files including a .DOC or .RDC file. Surfer 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.
Loading .IMG and .RST Files
Idrisi Raster Image .IMG and .RST files can be loaded to create a grid based map (i.e. Home | New Map | Contour) with the Open Grid dialog, or when using the functions in the Grid menu.
Import Options Dialog
No import options dialog is displayed.
Import Automation Options
No import options are available.