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Rubbersheeting

From Wikipedia, the free encyclopedia

In cartography and geographic information systems, rubbersheeting is a form of coordinate transformation that warps a vector dataset to match a known geographic space. This is most commonly needed when a dataset has systematic positional error, such as one digitized from a historical map of low accuracy. The mathematics and procedure are very similar to the georeferencing of raster images, and this term is occasionally used for that process as well, but image georegistration is an unambiguous term for the raster process.

Applications in history and historical geography

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Rubbersheeting is a useful technique in HGIS, where it is used to digitize and add old maps as feature layers in a modern GIS. Before aerial photography arrived, most maps were highly inaccurate by modern standards. Rubbersheeting may improve the value of such sources and make them easier to compare to modern maps.

Software

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See also

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References

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  1. ^ http://docs.autodesk.com/MAP/2013/ENU/index.html AutoCAD Map 3D Reference Help - ADERSHEET command
  2. ^ AutoCAD Raster Design User Guide p.32 - http://images.autodesk.com/adsk/files/autocad_raster_design_2012_getting_started.pdf
  3. ^ http://www.globalmapper.com/helpv13/Help_ImageRectification.html Global Mapper Online User's Guide
  4. ^ "Georeferencer Plugin".

Further reading

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