GRASS GIS 6.4.svn Reference Manual

Geographic Resources Analysis Support System, commonly referred to as GRASS, is a Geographic Information System (GIS) used for geospatial data management and analysis, image processing, graphics/maps production, spatial modeling, and visualization. GRASS is currently used in academic and commercial settings around the world, as well as by many governmental agencies and environmental consulting companies.

This reference manual details the use of modules distributed with Geographic Resources Analysis Support System (GRASS), an open source (GNU GPL'ed), image processing and geographic information system (GIS).

Quick Introduction

• GRASS startup manual page
• How to start with GRASS
• Introductions
  • 2D raster map processing
  • 3D raster map (voxel) processing
  • Image processing
  • Database management
  • Vector map processing and network analysis
  • Projections and spatial transformations
  • SQL support
  • Display drivers
  • GRASS variables and environment variables
• The GRASS Extensions Manager (GEM)

misc commands:

m.cogo	A simple utility for converting bearing and distance measurements to coordinates and vice versa.
m.proj	Convert coordinates from one projection to another (cs2cs frontend).

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