r.quant(1)

1r.quant(1)                    Grass User's Manual                   r.quant(1)
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NAME

6       r.quant   - This routine produces the quantization file for a floating-
7       point map.
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KEYWORDS

10       raster
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SYNOPSIS

13       r.quant
14       r.quant help
15       r.quant     [-tr]      [basemap=string]       input=string[,string,...]
16       fprange=dmin,dmax range=min,max
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18   Flags:
19       -t  Truncate floating point data
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21       -r  Round floating point data
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23   Parameters:
24       basemap=string
25           Base map to take quant rules from Default: NONE
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27       input=string[,string,...]
28           Raster map(s) to be quantized
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30       fprange=dmin,dmax
31           Floating point range: dmin,dmax Default:
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33       range=min,max
34           Integer range: min,max Default: 1,255
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DESCRIPTION

37       r.quant produces the quantization file for a floating-point map.
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39       The map parameter defines the map for which the rules be to be created.
40       If more than one map is specified, then this implies that the floating-
41       point  range  is  the  miniumum  and  maximum of all the maps together,
42       unless either basemap=map or fprange=min,max is specified.
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Quant rules

45       The quant rules have to be entered interactively.
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47       If rules is specified, the input has the form:
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49       value1:value2:cat1:[cat2]
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51       where value1 and value2 are floating point values and  cat1  cand  cat2
52       are  integers. If cat2 is missing, it is taken to be equal to cat1. All
53       values can be "*" which means infinity.
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NOTE

56       It is an error for both basemap and fprange to be specified.
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AUTHOR

62       Michael Shapiro, Olga Waupotitsch,  U.S.Army  Construction  Engineering
63       Research Laboratory
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65       Last changed: $Date: 2003/05/06 14:57:26 $
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67       Full index
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71GRASS 6.2.2                                                         r.quant(1)