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SpatialNews.com Press Release
Wireless News - Business News - Feature Columns
XYZ Celebrate Second Birthday An Edinburgh Success StoryImagery of this resolution enables not just roads and buildings to be clearly identified, but will also permit the Council to identify road traffic markings, street furniture such as lamp standards, and landscape features such as trees and flower beds in public parks. In fact a spread out newspaper would be visible, but not clearly enough to read anything. The picture shows a modern housing estate in a simulation of the new imagery. The XYZ combination of simple and fair licensing, and the matching CityMap GIS database and raster image proved decisive. The advantages of being able to combine photography and matching mapping are emphasised by the cover of the CityMap CD shown to the left. Edinburgh City Council were the first users of the CityMap, and are the biggest single user of the XYZ Edinburgh CityMap on CD, with virtually every department, and many schools and libraries holding copies. The new photography will also ensure that the next revision of the CityMap shows the latest developments in the booming Capital, while allowing the coverage to be extended to the west to include Newbridge and South Queensferry. Technical Details: The photography will be flown at a scale of 1:5 000, and converted to 12.5cm ground resolution digital imagery. Wild Goose Publications, acknowledged UK experts in the field, will create the Ortho-Photography to meet the demanding requirements of the Council. Orthophotos start life as conventional air photography, but the prints are digitally adjusted to remove the distortion present in any photograph. This is achieved by using a digital terrain model to compensate for the effects of height (a higher point will appear relatively further from the centre of the photo than it should, whereas a low point will be closer to the centre), and ground control points to register the imagery to the co-ordinates of the National Grid. The end result is what appears to be a photograph, but is actually map accurate allowing precise measurement of distances and locations. Contact Point: Dr Timothy Rideout Director The XYZ Digital Map Company Ltd Email: tim.rideout@xyzmaps.com Tel: 0141 579 0237 Fax: 0141 579 0238 |
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