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r3.in.ascii.1grass
Langue: en
Version: 313471 (ubuntu - 07/07/09)
Section: 1 (Commandes utilisateur)
NAME
r3.in.asciiDESCRIPTION
Convert a 3D ASCII raster text file into a (binary) 3D raster map layer.Parameters:
- type
- Data type used in the output file Options: default, double, float
- precision
- Precision used in the output file Options: default, max, 0-52
- compression
- Note that the none option only specifies that neither LZW nor RLE is used for compression. It does not turn off the compression all together. G3D does not support non-compressed files. Options: default, rle, none
- tiledimension
- The dimension of the tiles used in the output file. The format is: XxYxZ
- nv
- Specifies which value to convert to NULL-value. If the specified value is none, no conversion is performed. Default is none.
- input
- Path and name of ASCII file to be imported
- output
- Name of the G3D output map
NOTES
The format for the ASCII file:north: floating point
south: floating point
east: floating point
west: floating point
top: floating point
bottom: floating point
rows: integer
cols: integer
levels: integer
This header is followed by the cell values in floating point format organized in rows with constant col and level coordinate. The rows are organized by constant level coordinate. Individual cell values are separated by space or CR.
NOTE: Currently, after the file has been imported, the stored values are compared with the original data. This feature is used to find bugs in the library at an early stage and will be turned off as soon as confidence has built up.
EXAMPLE
Sample ASCII voxel map with one layer and several rows and columns (Spearfish area):north: 4925010.000000
south: 4924890.000000
east: 596760.000000
west: 596610.000000
top: 1.000000
bottom: 0.000000
rows: 4
cols: 5
levels: 1
1204.74 1204.48 1204.19 1203.81 1203.39
1203.89 1203.67 1203.34 1202.98 1202.43
1203.05 1202.80 1202.51 1202.11 1201.48
1202.10 1201.92 1201.62 1201.27 1200.68
AUTHORS
Roman Waupotitsch, Michael Shapiro, Helena Mitasova, Bill Brown, Lubos Mitas, Jaro HofierkaSEE ALSO
r3.out.ascii, v.to.rast3Last changed: $Date: 2006/10/04 07:54:03 $
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Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre