<div dir="ltr"><div><div><div>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.<br><br></div>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.,<a href="http://osm-nottingham.org.uk/?z=16&lon=-1.15355&lat=52.96680&bgl=OSM,0.38,17;Salmon,1,16">http://osm-nottingham.org.uk/?z=16&lon=-1.15355&lat=52.96680&bgl=OSM,0.38,17;Salmon,1,16</a>. Chris Hill has also written some useful intro stuff about using leaflet with historical maps: <a href="http://chris-osm.blogspot.co.uk/2014/04/images-to-map-overlays.html">http://chris-osm.blogspot.co.uk/2014/04/images-to-map-overlays.html</a>.<br><br></div>HTH,<br><br></div>Jerry<br></div><div class="gmail_extra"><br><div class="gmail_quote">On 9 January 2015 at 15:02, Richard Welty <span dir="ltr"><<a href="mailto:rwelty@averillpark.net" target="_blank">rwelty@averillpark.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">are there any examples of embedding OHM in web pages<br>
using leaflet? in particular, OHM as a transparent overlay<br>
on the standard OSM map?<br>
<br>
for that matter, is there a method with the current OHM<br>
web site to do such an overlay?<br>
<br>
thanks,<br>
richard<span class="HOEnZb"><font color="#888888"><br>
<br>
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