NAME

       r3.colors  - Creates/modifies the color table associated with a 3D raster map.

KEYWORDS

       raster3d, color table

SYNOPSIS

       r3.colors
       r3.colors --help
       r3.colors  [-rwlngae]  [map=name[,name,...]]   [file=name]   [color=style]   [raster=name]
       [raster_3d=name]   [rules=name]   [--help]  [--verbose]  [--quiet]  [--ui]

   Flags:
       -r
           Remove existing color table

       -w
           Only write new color table if it does not already exist

       -l
           List available rules then exit

       -n
           Invert colors

       -g
           Logarithmic scaling

       -a
           Logarithmic-absolute scaling

       -e
           Histogram equalization

       --help
           Print usage summary

       --verbose
           Verbose module output

       --quiet
           Quiet module output

       --ui
           Force launching GUI dialog

   Parameters:
       map=name[,name,...]
           Name of 3D raster map(s)

       file=name
           Input file with one map name per line
           Input map names can be defined in an input file in case a large amount of maps must be
           specified. This option is mutual exclusive to the map option.

       color=style
           Name of color table
           Options:  aspect, aspectcolr, bcyr, bgyr, blues, byg, byr, celsius, corine, curvature,
           differences, elevation, etopo2, evi, fahrenheit, gdd, greens, grey, grey.eq, grey.log,
           grey1.0,   grey255,   gyr,   haxby,   kelvin,   ndvi,   ndwi,   oranges,   population,
           population_dens, precipitation, precipitation_daily,  precipitation_monthly,  rainbow,
           ramp, random, reds, rstcurv, ryb, ryg, sepia, slope, srtm, srtm_plus, terrain, wave
           aspect: aspect oriented grey colors
           aspectcolr: aspect oriented rainbow colors
           bcyr: blue through cyan through yellow to red
           bgyr: blue through green through yellow to red
           blues: white to blue
           byg: blue through yellow to green
           byr: blue through yellow to red
           celsius: blue to red for degree Celsius temperature
           corine: EU Corine land cover colors
           curvature: for terrain curvatures (from v.surf.rst and r.slope.aspect)
           differences: differences oriented colors
           elevation: maps relative ranges of raster values to elevation color ramp
           etopo2: colors for ETOPO2 worldwide bathymetry/topography
           evi: enhanced vegetative index colors
           fahrenheit: blue to red for Fahrenheit temperature
           gdd: accumulated growing degree days
           greens: white to green
           grey: grey scale
           grey.eq: histogram-equalized grey scale
           grey.log: histogram logarithmic transformed grey scale
           grey1.0: grey scale for raster values between 0.0-1.0
           grey255: grey scale for raster values between 0-255
           gyr: green through yellow to red
           haxby: relative colors for bathymetry or topography
           kelvin: blue to red for temperature in Kelvin scale
           ndvi: Normalized Difference Vegetation Index colors
           ndwi: Normalized Difference Water Index colors
           oranges: white to orange
           population: color table covering human population classification breaks
           population_dens: color table covering human population density classification breaks
           precipitation: precipitation color table (0..2000mm)
           precipitation_daily: precipitation color table (0..1000mm)
           precipitation_monthly: precipitation color table (0..1000mm)
           rainbow: rainbow color table
           ramp: color ramp
           random: random color table
           reds: white to red
           rstcurv: terrain curvature (from r.resamp.rst)
           ryb: red through yellow to blue
           ryg: red through yellow to green
           sepia: yellowish-brown through to white
           slope: r.slope.aspect-type slope colors for raster values 0-90
           srtm: color palette for Shuttle Radar Topography Mission elevation
           srtm_plus: color palette for Shuttle Radar Topography Mission elevation (with seafloor
           colors)
           terrain: global elevation color table covering -11000 to +8850m
           wave: color wave

       raster=name
           Raster map from which to copy color table

       raster_3d=name
           3D raster map from which to copy color table

       rules=name
           Path to rules file
           "-" to read rules from stdin

DESCRIPTION

       r3.colors has exactly the same functionality as r.colors but for 3D  raster  maps.  Please
       refer to r.colors.

EXAMPLES

       r3.colors map=volume_1 color=gyr

SEE ALSO

        r.colors, r.colors.out, r3.colors.out, v.colors, v.colors.out

       See also wiki page Color tables (from GRASS User Wiki)

       ColorBrewer  is  an online tool designed to help people select good color schemes for maps
       and other graphics.

AUTHORS

       Michael Shapiro and David Johnson
       Support for 3D rasters by Soeren Gebbert

       Last changed: $Date: 2014-12-09 19:46:50 +0100 (Tue, 09 Dec 2014) $

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