tag: geotagging

Micro.blog Map

micro.blog Micro.blog "is the blog you will actually use." I have adapted my method of linking articles to and from a map here within a subscription Micro.blog's pages that again uses Leaflet and tiles from Open Street Map/Mapbox. See on GithubRead more…


Micro.blog GMap

Using a Google Map with micro.blog Micro.blog for the linking articles to and from a map here.Read more…


Yellow 0.8 Mapping

An update to my yellow Datenstrom Yellow map due to the v 0.8 upgrade. Read more…


Yellow Mapping

yellow Datenstrom Yellow "is for people who make websites" and I happen to have made this site using Yellow, so here is my method of linking articles to a map Read more…


Leaflet js

leaflet Updated my previous Leaflet installation to the new "open-source JavaScript library for mobile-friendly interface map".

Implementation consists of Read more…



leaflet Leaflet is "a modern, lightweight open-source JavaScript library for mobile-friendly interactive maps" and here I show how my Stacey method of linking articles to a map works with Leaflet Read more…


more Stacey geoblogging

A revision and slightly expanded explanation of my previous method of linking articles to a map, and back.

As I have done away with the Archives, my Stacey "content" folder now contains: Read more…


Stacey geoblogging

A method of linking articles to a map, and back.

This method works with the following file structure in Stacey: Read more…


GeoBlogging revisited

Revised Blogofile GeoBlogging used on this site, simplified and with new, cleaner url parsing ;)

Controller file

Firstly create a new Controller file (same as before), say map.py which contains:

from blogofile.cache import bf
def run():
    write_map(bf.posts, bf.util.path_join(bf.config.blog_path), "map.mako")
def write_map(posts, root, template):
    root = root.lstrip("/")
    path = bf.util.path_join(root,"map.html")
    bf.logger.info("Writing map: "+path)
    bf.writer.materialize_template(template, path, {"posts":posts, "root":root})

Map file

and now the new map.mako template file (full screen as before). This uses simple "," to break the url for parsing the latitude, longitude and zoom. Also, there is only the need for a single "psn" line in the article's mako header for the lat/long coordinates (the zoom level is handled by the post.mako file - in the link behind the GeoTagIcon):

<!DOCTYPE html>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<meta name="keywords" content="some stuff" />
<meta name="copyright" content="Copyright (c) Anon" />
<meta name="generator" content="Blogofile" />
<meta name="viewport" content="width=device-width" />
<link rel="alternate" type="application/rss+xml" title="Your Site" href="http://yoursite.com/atom.xml" />
<link rel="alternate" type="application/rss+xml" title="Your Site geo" href="http://yoursite.com/georss.xml" />
<style type="text/css">
html, body, #map_canvas {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: Skia, Helvetica, Tahoma sans-serif;
    font-size: 1em;
    color: #003300;
h2 {
    text-shadow: 1px 2px 5px rgba(0, 0, 0, 0.5);
    text-align: center;
a {
    color: #485c70;
a:hover, a:active {
    <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
    <script type="text/JavaScript">
        if (location.search.substring(1)) {
            var qs = location.search.substring(1);
            var url = qs.split(',',3);
            var lat = parseFloat(url[0]);
            var lng = parseFloat(url[1]);
            var zmn = parseFloat(url[2]);
            var vars = url.vars;
        else {
            var lat = 42.94033923363181;
            var lng = -2.8125;
            var zmn = 3;
            var map;
    function initialize() {
        map = new google.maps.Map(document.getElementById("map_canvas"), {
            center: new google.maps.LatLng(lat,lng),
            zoom: zmn,
            mapTypeId: google.maps.MapTypeId.TERRAIN
    var georssLayer = new google.maps.KmlLayer('http://picasaweb.google.com/data/feed/base/user/you/albumid/111111111111111?alt=rss&kind=photo&hl=en_GB', {preserveViewport:true});
    var ctaLayer = new google.maps.KmlLayer('http://yoursite.com/trails/country_a.kml', {preserveViewport:true});
    var ctaLayer = new google.maps.KmlLayer('http://yoursite.com/trails/country_b.kml', {preserveViewport:true});
% for post in posts:
% if hasattr(post, "psn"):
    var marker${post.id} = new google.maps.Marker({
        position: new google.maps.LatLng(${post.psn}),
        map: map,
        title: "${post.title}"
    var infowindow${post.id} = new google.maps.InfoWindow({
        content: ('<h2><a href="${bf.config.blog_url}${post.permapath()}">${post.title}</a></h2><p>${post.excerpt}</p>')
    google.maps.event.addListener(marker${post.id}, 'click', function() {
% endif
% endfor
    var url = getAttribute("url");
    <body onload="initialize()">
        <div id="map_canvas"></div>
           <a href="/" title="home"><img src="http://yoursite.com/images/home.png" alt="home" style="border:0; position: absolute; bottom: 35px; left: 3px" /></a>
           <a href="http://yoursite.com/georss.xml" title="GeoRSS"><img src="http://yoursite.com/images/georss.png" alt="georss" style="position:absolute; bottom: 35px; left: 37px" /></a>
        <h2><a href="http://yoursite.com/map.html" title="reset map" style="position: absolute; bottom: 15px; right: 3px">RESET</a></h2>


  • the if hasattr(post, "psn"): argument has to be there to enable the map to only pick-up geotagged articles or it will not load

You may need to alter one or two things:

  • path to your feed .xml file
  • adjust the initial zoom and centre coordinates (the first instance of else)
  • my map is set to TERRAIN at first
  • I've left in the section to show how to import .kml polygons, Picasa feeds etc.
  • the infowindow article excerpts amy be altered for length and content elsewhere in Blogofile

(There are some things absent from the previous mapping effort, such as crosshairs and centre coordinate readout, these may come later.)

Article link

This needs inserting somewhere in the Article meta - in the post.mako file - it actually only focusses onto the map where the marker has been placed by the map code. Thus, you may manually make links for the body of your posts using any lat, long and zoom values which are parsed by the map code to focus on any bit of the map.

    % if hasattr(post, "psn"):
      <a href="http://www.yoursite.com/map.html/?${post.psn},13" title="location on my Map"><img src="http://www.yoursite.com/images/geotag.png" alt="geotag" /></a>
    % endif


Blogofile Feeds

This site has modified feeds to what comes out of the Blogofile v0.6 box, and instead of offering either atom or rss feeds, I'm just providing an atom feed for the main content (limited to the 7 latest) and a georss variant Read more…


Blogofile GeoBlogging

Extending earlier principles used within Textpattern to populate your own Google Map with geo-located articles and reciprocal links, here I set out my current method of achieving the same with Blogofile. It actually turned out to much simpler Read more…


Mapped excerpts

Turning on the excerpt option in the Blogofile config.py file and adding @${post.excerpt}@ to the info windows code of my maps, Read more…


Geo-Blogging using Textpattern and jQuery

(This work-through is posted on TXT Tips.)

Based on the code described by Matt Davis, I have incorporated some of the previous work done for the xml driven map Read more…


Geoblogging using an xml file

A method of geotagging when using Textpattern. (This work-through is an updated text to that on TextBook)

Based on the method Read more…


A web standard icon for geotagging

A friend Bruce has been working on standardising a Geotagging icon since our discussion started following an article I posted on Map Inspecting, and I think he's come up with a good design Read more…


Map Inspecting

As I mention in my Info section, I have long thought I''d like a Google Map section to geo-tag photographs to, in a similar manner to Flickr and Panoramio. I like the Flickr implementation, but the quality of mapping isn''t as good as Googles'. Well now it''s landed (example only - no valid API key).

From the map points there are commonly links to slideshows of photographs such as those presently run off Lightbox, or those on Flickr and Picasa. Although Flickr seems to be the popular one, Picasa has the advantage of being viewable on the iPhone as well and is very suitable for this purpose.

The new page is built on the Google AJAX API loader, the tutorials seem to use the old code, but they''re not too bad to follow and the new is backward compatible, so mashing the two together was OK.

Having been through the Google Concepts and examples, I found the best way of learning and getting the page to work, was the long established method of unashamedly picking-over other site''s code. Having enabled the debug menu in Safari a while ago, I've actually found myself using the Javascript console, a whole new language to me.

One thing I have noticed in this though, is that the webkit Inspect Element sometimes messes-up the code - the View Source gets it right, as does Opera''s Console.

Hopefully as the new page grows I will learn how to implement the zoom zones to reveal more specific map points within groups (trips) as the magnification (and requirement) grows.