Photogrammetry is the technology used by the mapping industry to extract both 2D and 3D geographic information from aerial photographs and an array of survey parameters. Zmapping use photogrammetry as the main ingredient in the production of 3D models of large urban areas. 

Creating 3D models to the highest accuracy and detail means that we have gained invaluable experience in photogrammetric work and we are able to apply this technology to a host of related causes, including:

• Conventional 2D maps from orthorectified imagery

• Terrain maps or contour maps

• Estimates of mining volumes

• Models for flood modelling

• Surveying for new roads, in particular in hilly areas

• Height models for noise and pollution studies

• Telecoms mast installations

• Pipeline routes

Click images to enlarge
Leeds - total area 56 km²	Leeds		York - total area 90 km²
Leeds - with extruded buildings	Leeds - area showing  terrain undulations		Leeds – colour coded  height polygons

Zmapping recently carried out a large photogrammetric project covering a total of 265 km² of the towns of Leeds, York and Nottingham for Blue Sky International – Getmapping’s master offline reseller. The model is used by the University of Leeds for noise and pollution modelling studies.