<div dir="ltr">Here's our prototype for Acton Trails, very much in progress. Happy to have comments, as long as you understand that this is preliminary & we know we aren't ready for primetime yet. <div><a href="https://snyder-grant.org/jim/mapping/lsc.html">https://snyder-grant.org/jim/mapping/lsc.html</a></div><div>We do hide trails that are marked private. We are thinking of adding the sort of decoration that we've seen on SVT maps: a red X on stubs of trails that become private, to ward people off more visibly (but still allow the display of the stub for navigation purposes) </div><div>We have the zoom level and the location in the URL, as read & write parameters, so we can send URLs that point to particular locations. That's been helpful within the trails committee. </div><div>The map starts zoomed out for context. That's particularly helpful when we are showing a very small area. </div><div>As you can see we are very much just getting started on the legend. We are currently I think we'll end up having it on an optional panel that can slide in so that it doesn't take up much screen real estate. We are also working out howto have the legend change as the zoom level changes (this doesn't work yet). And sometimes the legend doesn't show at all: reload the page to get it back. </div><div> </div><div>We are using mapbox for our trail data. Mapbox starts from OpenStreetMap data for its base layers & then combines and simplifies it a bit. It provides styling per zoom level. We are still working out how best to use this styling feature, but you can see as you zoom in that we have dash-dot patters and colors for our trails that show up as you zoom in. We are also highlighting the Bay Circuit Trail: thanks to Alan for helping to make it easy to grab this off of OSM. For data like this, we get the data directly from OSM & put it in our own mapbox layers, instead of relying on Mapbox, which throws away too much data for us to use it directly for features like this. </div><div><br></div><div>Happy to answer questions and take feedback.</div><div><br></div><div> </div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div>Jim Snyder-Grant<br>18 Half Moon Hill<br>Acton MA 01720<br>508 572-2985<br></div><div><br></div></div></div></div></div></div></div></div></div></div></div>
<br><div class="gmail_quote">On Mon, May 22, 2017 at 4:41 PM, Alan & Ruth Bragg <span dir="ltr"><<a href="mailto:alan.ruth.bragg@gmail.com" target="_blank">alan.ruth.bragg@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div style="font-family:trebuchet ms,sans-serif;font-size:large">I had a chance encounter with Steve Tobin of the Carlise Trails Committee yesterday.</div><div style="font-family:trebuchet ms,sans-serif;font-size:large">We got to discussing town trial maps and he pointed out that he couldn't publish a map for the town that included trails on private land.</div><div style="font-family:trebuchet ms,sans-serif;font-size:large"><br></div><div style="font-family:trebuchet ms,sans-serif;font-size:large">My suggestion is that those trails be tagged access=private.</div><div style="font-family:trebuchet ms,sans-serif;font-size:large"><br></div><div style="font-family:trebuchet ms,sans-serif;font-size:large">The cartographic tool used to create the maps could either ignore private trails or render them in a way that indicates they are private.</div><div style="font-family:trebuchet ms,sans-serif;font-size:large"><br></div><div style="font-family:trebuchet ms,sans-serif;font-size:large">I'm wondering what progress the Acton folks have made on their conservation map.</div><div style="font-family:trebuchet ms,sans-serif;font-size:large"><br></div><div style="font-family:trebuchet ms,sans-serif;font-size:large">I'm going the the <a href="https://github.com/Leaflet/Leaflet" target="_blank">leaflet</a> presentation at maptime Boston Tuesday night at 7. It's free and their new sponsor is providing pizza, drop me a note if you'd like to join me. I'm taking the T from Alwife.</div><div style="font-family:trebuchet ms,sans-serif;font-size:large"><br></div><div style="font-family:trebuchet ms,sans-serif;font-size:large">Alan</div><div style="font-family:trebuchet ms,sans-serif;font-size:large"><br></div><div style="font-family:trebuchet ms,sans-serif;font-size:large"></div>
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