This is a fairly simple technique in leaflet. All I have done with the graphhopper example I showed on the blog was to add another map layer instance to the template code provided by the graphhopper install.
If you want something which is not desperately difficult to understand showing mulitple historical map layers with transparency in leaflet, I suggest having a look at Will Phillips SM-Nottingham site: e.g., http://osm-nottingham.org.uk/?z=16&lon=-1.15355&lat=52.96680&bgl=OSM,0.38,17;Salmon,1,16. Chris Hill has also written some useful intro stuff about using leaflet with historical maps: http://chris-osm.blogspot.co.uk/2014/04/images-to-map-overlays.html. HTH, Jerry On 9 January 2015 at 15:02, Richard Welty <[email protected]> wrote: > are there any examples of embedding OHM in web pages > using leaflet? in particular, OHM as a transparent overlay > on the standard OSM map? > > for that matter, is there a method with the current OHM > web site to do such an overlay? > > thanks, > richard > > -- > [email protected] > Averill Park Networking - GIS & IT Consulting > OpenStreetMap - PostgreSQL - Linux > Java - Web Applications - Search > > > _______________________________________________ > Historic mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/historic >
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