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I need to draw a circle around a central location to show where other places are within a given distance.

As objects, OSM-based Umap only supports Marker, Polyline, and Polygon.

Currently, I take a screenshot, add a circle using Paint Shop Pro, and send the resulting JPG, but I'd rather a live map so people can zoom in/out and move around: enter image description here

Does someone know of an alternative, preferably with OSM tiles built in, that would also support circle drawing?

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  • Do you need to offload the whole map function (umap style)? – BradHards Feb 16 '15 at 10:33
  • I don't understand what you mean by "offload the whole map". Download the map to the user's computer? – Gulbahar Feb 16 '15 at 11:06
  • Looks like there's currently no solution that looks like what I had in mind as pictured above. Too bad. Thanks everyone. – Gulbahar Feb 16 '15 at 21:27
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Would "Radius Around A Point On A Map" do what you want? You can generate a map URL or download the KML for a given point and radius.

http://www.freemaptools.com/radius-around-point.htm

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  • Thanks for the tip, but the screen is too busy. I was looking for something that would look like the OSM mockup that I built. Oh well. – Gulbahar Feb 16 '15 at 21:25
  • Turns out it's the closest tool to draw a circle around a location. Thank you. – Gulbahar Nov 3 '16 at 10:06
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You could use leaflet, an open source JavaScript Library for interactive maps. It supports drawing circles on a webmap using the circle-class. All you need is the geographical point and the radius in meters. You can find a simple example in the quick start guide.

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  • Thanks. I was looking for a site similar to Umap, ie. ready-to-use with its own servers. – Gulbahar Feb 16 '15 at 11:06
  • You should state that in your question more clearly, then. Leaflet does come with OSM as default tiles, though. – John Powell Feb 16 '15 at 11:33
  • Sorry, I don't understand what that means. Installing a whole server just to display a picture is over-kill. Thank you. – Gulbahar Feb 16 '15 at 21:26
  • Actually all you need on your server is the Leaflet JavaScript library and some JavaScript code in your html page. Of course, this is a different type of solution than umap, where you don't need anything at all. – escada Feb 17 '15 at 6:12
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Why not use GEOJSON.io You can draw your polygons/ circle or use qgis desktop FREE AND OPEN SOURCE FOR GEOSPATIAL SOFTWARE with a web mapping plugin like QGIS2WEB http://www.qgistutorials.com/en/docs/web_mapping_with_qgis2web.html

https://www.gislounge.com/a-web-mapping-tutorial-for-beginners/

Then host it anywhere including github pages.

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