Monday 22 October 2018

Using Custom Aerial Raster Imagery with OpenLayers 3 or 4


Currently, openlayers supports bing maps, however this is not an ideal option for a commercial application. What would be ideal is to have the ability to host and serve ariel imagery like NASA blue marble at http://visibleearth.nasa.gov/view_cat.php?categoryID=1484


Is there a way to serve an open source aerial image as a basemap in an openlayers 3 or 4 application? How could this be accomplished in theory?


EDIT: I'd like to know more about hosting and serving the aerial map locally. There are examples of how to do this with OpenStreetMaps using Mod_tile, renderd, mapnik, osm2pgsql and a postgresql/postgis database on the switch to OSM website https://switch2osm.org/manually-building-a-tile-server-16-04-2-lts/


How would one go about replicating this process locally using just raster imagery like NASA blue marble at http://visibleearth.nasa.gov/view_cat.php?categoryID=1484 (Large file)



Answer




It seems there is a variation of this question that partly answers it by addressing how to import raster images into a PostGIS database How to import a raster into PostGIS?


Theoretically, you would load a raster image like the NASA blue marble imagery into a PostGIS database using a tool called raster2pgsql. The image could then be served as WMS - through a geospatial data server like GeoServer - in a web-based OpenLayers application.



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