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Sample data for: 1-band raster colour table   

The QGIS plugin is used to create a colour table for a one-band raster file. Plugin is found here.

Download sample data (4.5 MB zipped)

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Sample data

The sample dataset consists of one raster file of the SRTM* over an area in Tanzania (Africa).

It is in a ArcGIS ASCII grid format (AAIGrid for GDAL) and can be imported in QGIS directly with the open raster command.

Its coordinate system is WGS84 Lat/Lon.

After reading the raster into QGIS a large grey rectangle will be displayed on screen.

  1. Select the raster in the legend (very important)
  2. Go to Plugins -> Raster Colours -> 1-band raster colour (an wait a while for the raster to be read into the plugin!)
  3. See here on ways to produce colour ramps.
  4. Select the colour table that you want to apply to the raster from the dropdown list at the bottom of the dialog window and click 'Close' (see below).
  5. The raster will be coloured with the selected colour table.

An overview of the plugin function:

Plugin

 

*SRTM data taken from:

Jarvis A., H.I. Reuter, A. Nelson, E. Guevara, 2008, Hole-filled seamless SRTM data V4, International Centre for Tropical Agriculture (CIAT), available from http://srtm.csi.cgiar.org.

REFERENCES

Reuter H.I, A. Nelson, A. Jarvis, 2007, An evaluation of void filling interpolation methods for SRTM data, International Journal of Geographic Information Science, 21:9, 983-1008.