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r3.out.ascii

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r3.out.ascii: Converts a 3D raster map layer into an ASCII text file

NAME
r3.out.ascii - Converts a 3D raster map layer into an ASCII text file
KEYWORDS
raster3d, voxel, export

SYNOPSIS

r3.out.ascii r3.out.ascii help r3.out.ascii [-hm] input=string [output=string] [dp=integer] [null=string] [--verbose] [--quiet] Flags: -h Suppress printing of header information -m Use G3D mask (if exists) with input map --verbose Verbose module output --quiet Quiet module output Parameters: input=string 3d raster map to be converted to ASCII output=string Name for ASCII output file dp=integer Number of decimal places for floats Options: 0-20 Default: 8 null=string Char string to represent no data cell Default: *

DESCRIPTION

Outputs G3D maps in ascii format. map is a valid G3D map in the current mapset. output is the name of an ascii file which will be written in the current working directory. If output is not specified then stdout is used. The -h flag may be used to suppress header information. The module is sensitive to region settings (set with g.region).

NOTES

The default format for the ascii file is equivalent to that required by r3.in.ascii. In particular, files output by r3.out.ascii with header information may be converted back to G3D maps with r3.in.ascii. The format for the ascii file is: north: floating point south: floating point east: floating point west: floating point top: floating point bottom: floating point rows: integer cols: integer levels: integer The header is followed by cell values in floating point format. Cell values are output as a series of horizontal slices in row-major order. That is, (x, y, z) (x + 1, y, z) ... (x + cols, y, z) (x, y + 1, z) (x + 1, y + 1, z) ... (x + cols, y + 1, z) and so on One level maps can be imported with r.in.ascii (Raster 2D) after removing the header lines "top", "bottom" and "levels".

SEE ALSO

r3.in.ascii g.region
AUTHORS
Roman Waupotitsch, Michael Shapiro, Helena Mitasova, Bill Brown, Lubos Mitas, Jaro Hofierka Last changed: $Date: 2006-04-20 23:31:24 +0200 (Thu, 20 Apr 2006) $ Full index (C) 2003-2010 GRASS Development Team R3.OUT.ASCII(1)
 
 
 

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