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r.quant.1grass
Langue: en
Version: 335869 (ubuntu - 24/10/10)
Section: 1 (Commandes utilisateur)
NAME
r.quant - Produces the quantization file for a floating-point map.KEYWORDS
rasterSYNOPSIS
r.quantr.quant help
r.quant [-tr] [basemap=string] input=string[,string,...] fprange=dmin,dmax range=min,max [--verbose] [--quiet]
Flags:
- -t
Truncate floating point data- -r
Round floating point data- --verbose
Verbose module output- --quiet
Quiet module output
Parameters:
- basemap=string
Base map to take quant rules from
Default: NONE- input=string[,string,...]
Raster map(s) to be quantized- fprange=dmin,dmax
Floating point range: dmin,dmax
Default:- range=min,max
Integer range: min,max
Default: 1,255
DESCRIPTION
r.quant produces the quantization file for a floating-point map.The map parameter defines the map for which the rules are to be created. If more than one map is specified, then this implies that the floating-point range is the miniumum and maximum of all the maps together, unless either basemap=map or fprange=min,max is specified.
Quant rules
The quant rules have to be entered interactively.If rules is specified, the input has the form:
value1:value2:cat1:[cat2]
where value1 and value2 are floating point values and cat1 cand cat2 are integers. If cat2 is missing, it is taken to be equal to cat1. All values can be "*" which means infinity.
NOTE
It is an error for both basemap and fprange to be specified.SEE ALSO
r.support, r.nullAUTHOR
Michael Shapiro, Olga Waupotitsch, U.S.Army Construction Engineering Research LaboratoryLast changed: $Date: 2010-02-28 02:56:22 +0100 (dom, 28 feb 2010) $
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