openlayers-3 – Tarik Billa

how to add markers with OpenLayers 3

March 5, 2023 by Tarik

Q1. Markers are considered deprecated in OpenLayers 2, though this isn’t very obvious from the documentation. Instead, you should use an OpenLayers.Feature.Vector with an externalGraphic set to some image source in its style. This notion has been carried over to OpenLayers 3, so there is no marker class and it is done as in the … Read more

Access to Image from origin ‘null’ has been blocked by CORS policy

January 14, 2023 by Tarik

You’re running into a CORS error. Trying to access your file using the local file system doesn’t work in your case. Origin is null because it’s your local file system. Could you possibly host this png file? Suggestion: Host these files to an AWS S3 bucket instead. Then you can use the http protocol rather … Read more