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, grass,  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,  roygbiv,  rstcurv,  ryb, ryg, sepia, slope, soilmoisture, srtm,
           srtm_plus, terrain, viridis, water, 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
            grass: GRASS GIS green (perceptually uniform)
            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
            roygbiv: no description
            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
            soilmoisture: soilmoisture color table (0.0-1.0)
            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
            viridis: perceptually uniform sequential color table viridis
            water: water depth
            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 19:39:37 +0100 (Tue, 09 Dec 2014) $

SOURCE CODE

       Available at: r3.colors source code (history)

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