## GRASS GIS 7.8.2 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 GPLed), image processing and geographic information system (GIS).

### Quick Introduction

- How to start with GRASS GIS
- Index of topics and keywords

- Intro: projections and spatial transformations

- FAQ - Frequently Asked Questions (Wiki)

- Graphical index of functionality

### Graphical User Interface

- wxGUI
- wxGUI components
- wxGUI toolboxes

- GUI commands

### Display

- Display commands manual
- Display drivers

### General

- GRASS GIS startup manual
- General commands manual

### Addons

- Addons manual pages

### Programmer's Manual

- Programmer's Manual

### Raster processing

- Intro: 2D raster map processing
- Raster commands manual

### 3D raster processing

- Intro: 3D raster map (voxel) processing
- 3D raster (voxel) commands manual

### Image processing

- Intro: image processing
- Imagery commands manual

### Vector processing

- Intro: vector map processing and network analysis
- Vector commands manual
- GRASS ASCII vector format specification

### Database

- Intro: database management
- SQL support in GRASS GIS
- Database commands manual

### Temporal processing

- Intro: temporal data processing
- Temporal commands manual

### Cartography

- PostScript commands manual
- wxGUI Cartographic Composer

### Miscellaneous & Variables

- Miscellaneous commands manual
- GRASS variables and environment variables

### Python

- GRASS GIS Python library documentation
- PyGRASS documentation

Main index | Topics index | Keywords index | Graphical index | Full index

© 2003-2019 GRASS Development Team, GRASS GIS 7.8.2 Reference Manual