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this post was submitted on 21 Aug 2024
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OpenStreetMap community
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Everything #OpenStreetMap related is welcome: software releases, showing of your work, questions about how to tag something, as long as it has to do with OpenStreetMap or OpenStreetMap-related software.
OpenStreetMap is a map of the world, created by people like you and free to use under an open license.
Join OpenStreetMap and start mapping: https://www.openstreetmap.org.
There are many communication channels about OSM, many organized around a certain country or region. Discover them on https://openstreetmap.community
https://mapcomplete.org is an easy-to-use website to view, edit and add points (such as shops, restaurants and others)
https://learnosm.org/en/ has a lot of information for beginners too.
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You should prefer orthoimages from national or federal mapping agencies. They will often diverge from each other, as they have different resolutions and quality standards. The process of correcting aerial images for topography is called or tho rectification, and a digital elevation model (DEM) is required for that. It has several downsides, one is that there is more distortion in high object like buildings. A quality standard in Germany for example is the TrueDOP (DOP = Digital Orthophoto). You can read more about it in this article if you are interested.