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GeoServices Home > Aerial Imagery_Aerial Imagery 1926 (MapServer)

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Service Description:

 The 1926 digital aerial mosaic displays a  b/w image covering the CBD, Woodstock and Sea Point areas of the municipal area of the City of Cape Town.  It was processed from 1926 aerial photography, but the original scale of photography is unknown.  The aerial mosaic is available in ECW format at 50 cm GSD (ground sampling distance). Vertical aerial photography is widely used for cartography, town planning, environmental studies and engineering purposes. A large number of aerial photographs are being processed and geometrically ‘corrected’ for the effects of image perspective and terrain relief, thereby representing features in their 'true' positions. The final aerial image mosaic has a constant scale and pixel size which allows for accurate direct measurement of distances, angles and areas.

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Metadata:
  • Description: The 1926 digital aerial mosaic displays a  b/w image covering the CBD, Woodstock and Sea Point areas of the municipal area of the City of Cape Town.  It was processed from 1926 aerial photography, but the original scale of photography is unknown.  The aerial mosaic is available in ECW format at 50 cm GSD (ground sampling distance). Vertical aerial photography is widely used for cartography, town planning, environmental studies and engineering purposes. A large number of aerial photographs are being processed and geometrically ‘corrected’ for the effects of image perspective and terrain relief, thereby representing features in their 'true' positions. The final aerial image mosaic has a constant scale and pixel size which allows for accurate direct measurement of distances, angles and areas.
  • Copyright Text:
  • Spatial Reference: 20482
  • Title: Aerial Imagery 1926
  • Author:
  • Comments:
  • Subject:
  • Category:
  • Keywords:
  • Credits:
  • Supported Interfaces: REST
  • Supported Operations:
  • Export Map

Map info:
  • Single Fused Map Cache: false
  • Initial Extent:
      XMin: -57698.72905999999784
      YMin: -3758509.013170000166
      XMax: -49531.22905999999784
      YMax: -3752100.763170000166
      Spatial Reference: 20482
  • Full Extent:
      XMin: -57698.72905999999784
      YMin: -3758509.013170000166
      XMax: -49531.22905999999784
      YMax: -3752100.763170000166
      Spatial Reference: 20482
  • Units: esriMeters
  • Supported Image Format Types: PNG8,PNG24,JPG,WEBP,JPGPNG,TIFF8

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Geoservices Protocol

Geoservices is a proprietary protocol from ESRI. ERDAS APOLLO currently implements the Map Service type to aid image serving interoperability with existing ESRI clients.