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Howto:Make an airport: Difference between revisions
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→A note about licenses: OSM is a compatible, good source of data
(A little more info for first time devs.) |
(→A note about licenses: OSM is a compatible, good source of data) |
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* are licensed under a [http://upload.wikimedia.org/wikipedia/commons/d/dc/Quick-guide-gplv3-compatibility.svg GNU GPL v2 compatible license] (eg. Public Domain). | * are licensed under a [http://upload.wikimedia.org/wikipedia/commons/d/dc/Quick-guide-gplv3-compatibility.svg GNU GPL v2 compatible license] (eg. Public Domain). | ||
Google Earth imagery is per definition '''not''' compatible. For the USA you can download the High Resolution Orthoimagery jpeg from http://earthexplorer.usgs.gov/ and use that to trace airports or buildings. | Google Earth imagery is per definition '''not''' compatible. For the USA you can download the High Resolution Orthoimagery jpeg from http://earthexplorer.usgs.gov/ and use that to trace airports or buildings. For other countries, you might use OpenStreetMap data if available. Note that OpenStreetMap has been granted the right to trace over Yahoo and Bing aerial images, so it can get quite accurate. Consider learning how to [http://wiki.openstreetmap.org/wiki/Aeroways map airports in OSM]. | ||
Alternatively you can estimate the lengths and widths of the buildings by looking at pictures. | Alternatively you can estimate the lengths and widths of the buildings by looking at pictures. | ||