Common Tasks

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Revision as of 07:49, 12 December 2006 by ⚠️HamishBowman (talk | contribs) (faq)
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Mini-tutorials showcasing some common GIS taks

Import/Export and Display

  • Import and display SRTM elevation data
    • GRASS Newsletter, 3, June 2005.
  • Import and display VMap0 Digital Chart of the World
    • GRASS Newsletter, 3, June 2005.
  • Import and display ETOPO2 world elevation and bathymetry dataset
    • Global dataset of bathymetry and topography. GRASS Newsletter, 1:8-11, August 2004.


GIS Tasks

  • Geo-rectify a scanned raster image
    • r.in.gdal into XY location
    • GUI georectifier
    • i.points + i.rectify (alternate method)
  • Create a DEM from contour lines and trig points
    • r.surf.contour
  • Create a DEM from x,y,z point data
    • v.surf.rst
    • v.surf.idw
    • v.surf.bspline
    • r.surf.nnbathy
  • Create vector contour lines from a raster DEM
    • r.contour

3D Visualization

  • Use NVIZ to render a 3D image
nviz elevation.dem
  • Use NVIZ to make a fly through movie
    • see nviz keyframe animation panel help page
  • Use Paraview to render a 3D image
    • r.out.vtk, v.out.vtk

Raster operations

  • Create a shaded relief map
    • r.shaded relief
  • drape semi-transparent land use map over shaded relief map
    • d.his

Vector operations

  • Disolve interior lines
    • v.dissolve

Hardcopy and Presention Graphics Creation

  • Create a high quality hardcopy plot
    • ps.map
    • export to GMT