GRASS GIS manual: t.rast.colors

## NAME

t.rast.colors - Creates/modifies the color table associated with each raster map of the space time raster dataset.

## KEYWORDS

temporal, color table, raster, time

## SYNOPSIS

t.rast.colors
t.rast.colors --help
t.rast.colors [-rwlngae] input=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:

input=name [required]
  Name of the input space time raster dataset
color=style
  Name of color table (see r.color help)
  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

## DESCRIPTION

t.rast.colors computes a color table based on all registered maps of a space time raster dataset and to assign this color table to each map. Hence the created color table reflects the data range of the space time raster dataset. This module is a simple wrapper around r.colors. All options of r.colors are supported. Internally a file with map names is created and passed to the file option of r.colors.

Please have a look at the r.colors manual page for further information.

## EXAMPLE

Set Celsius color table to monthly dataset

    t.rast.colors input=tempmean_monthly color=celsius

    r.colors.out map=2009_01_tempmean

    -80 0:0:40
    -40 91:10:168
    -30 220:220:220
    -25 91:50:128
    -20 50:0:150
    -15 4:25:130
    -10 8:54:106
    -8 4:20:150
    -5 0:50:255
    -2 8:10:118
    -0.061449 8:113:155
    0.013855 8:118:157
    0.090594 8:123:158
    0.168767 8:128:159
    0.248375 8:133:159
    0.329417 8:136:160
    ...
    40.6976 183:163:163
    41.0483 185:167:167
    41.4004 188:170:171
    41.754 190:174:174
    42.109 191:178:178
    42.4655 193:182:182
    42.8233 195:185:185
    43.1827 197:189:189
    43.5434 199:192:193
    43.9056 200:197:197
    44.2692 202:200:201
    44.6342 204:204:204
    45.0007 206:206:206
    80 155:10:155
    nv 255:255:255
    default 255:255:255

## SEE ALSO

r.colors

## AUTHOR

Sören Gebbert, Thünen Institute of Climate-Smart Agriculture

Last changed: $Date: 2015-01-25 18:55:23 +0100 (Sun, 25 Jan 2015) $

## SOURCE CODE

Available at: t.rast.colors source code (history)

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