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You would need to georeference (that's the term) image with QGIS. See my answer to this question for tutorial links.


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It depends on how many files you need to convert. If you have a lot, a simple solution is to install the free GeoServer and publish all the shapefiles as WMS or WFS (depending on use-case). Geoserver handles the delivery and you do not need to no any conversion. This will allow you to overlay them in most web map scenarios without overloading your client ...


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You'll need to convert your geographic coordinates into a projection that has a coordinate system that allows you to use Cartesian math to calculate area. I believe UTM is the accepted standard projection, as it is very simple to select a zone based on your latitude and longitude, and also the distortion is minimal, even across zones. So, if you have a ...


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Ok, this is not really a GIS related but rather a programming related question. Anyway, for your intended purpose you can use almost any language you like. Here is a very, very simple PHP script based on the example Mapfile from the documentation at http://www.mapserver.org/mapscript/php/by_example.html. In this script only the variable DATA is altered: ...


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I suppose you have been reading this http://docs.geoserver.org/latest/en/user/tutorials/cql/cql_tutorial.html Here comes some sample requests which are sending queries for the demo server of Boundless but which should work similarly with your own server if you have demo layer topp:states installed. Select where STATE_NAME is Illinois ...



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