On 1/9/15 10:14 AM, SK53 wrote:
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.
thanks, that's a good start.
richard
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