man raster3D () - 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.

GRASS GIS 6.0.1 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 manual page
How to start with GRASS

raster3D commands: r3.in.ascii Convert a 3D ASCII raster text file into a (binary) 3D raster map layer r3.in.v5d import of 3-dimensional Vis5D files (i.e. the v5d file with 1 variable and 1 time step) r3.info Outputs basic information about a user-specified 3D raster map layer. r3.mapcalc r3.mapcalc r3.mask Establishes or removes the current working 3D raster mask. r3.mkdspf r3.null Explicitly create the 3D NULL-value bitmap file. r3.out.ascii Converts a 3D raster map layer into an ASCII text file r3.out.v5d Export of GRASS 3D raster file to 3-dimensional Vis5D file. r3.timestamp print/add/remove a timestamp for a 3D raster map

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