# GRASS Help System

## RASTER/VECTOR/SITES CONVERSIONS

The commands listed below are used to convert data among GRASS raster, vector, and sites data file formats. Such conversion is needed when the user wishes to run a GRASS program on data that are not in the format expected by the program.

For more information on a specific command, select a command and press ESC.

Raster Vector Sites
Conversion Conversion Conversion
Programs: Programs: Programs:

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- r.line - v.to.rast - s.in.ascii
- r.poly - v.to.sites - s.out.ascii
- r.thin
- r.in.sunrast

GRASS programs with the prefix "r." work on data in raster format. GRASS programs with the prefix "v." work on data in vector format. GRASS programs with the prefix "s." work on data in site_lists format.

Typically, linear and area edge (polygon) data are entered in vector format, and converted to raster format for analysis. Often, point data are entered in site_lists format and analyzed either in this format or after conversion to raster format. Data can be displayed and printed in any of these three file formats.

For more information on these GRASS data file formats, select the section on "Raster, Vector, and Sites Data File Formats," located under the "Digitizing and Map Development" menu (access from the Help System Main Menu).

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Automatically created on: Wed Mar 30 04:38:59 2005