Best tools for multimedia reporting Fri, 31 Oct 2014 18:57:58 +0000 en-US hourly 1 https://s0.wp.com/i/webclip.png 32 32 239681374 https://geojournalism.org/2013/08/openstreetmap-editing-using-id/ Mikel Maron Fri, 16 Aug 2013 01:21:12 +0000 Crowdsourcing Maps cartography Open Street Map wiki https://geojournalism.oeco.org.br/?p=316 <p>You can easily edit the OpenStreetMap base map that you find at&#160;www.openstreetmap.org. And while doing it you will become part of the community of thousands of mappers worldwide who are creating the map together. Introduction What if your area isn&#8217;t mapped? Or you want to add a feature, like a waterway or lake? You can [&#8230;]</p> <p>The post <a href="https://geojournalism.org/2013/08/openstreetmap-editing-using-id/">OpenStreetMap editing using ID</a> appeared first on <a href="https://geojournalism.org">geojournalism.org</a>.</p> <p>You can easily edit the OpenStreetMap base map that you find at <a href="https://www.openstreetmap.org/">www.openstreetmap.org</a>. And while doing it you will become part of the community of thousands of mappers worldwide who are creating the map together.<span id="more-316"></span></p> <h2 class="summary-item" id="introduction"><a href="#introduction">Introduction</a></h2> <p>What if your area isn’t mapped? Or you want to add a feature, like a waterway or lake? You can easily edit the OpenStreetMap base map that you find at <a href="https://www.openstreetmap.org/">www.openstreetmap.org</a>. And while doing it you will become part of the community of thousands of mappers worldwide who are creating the map together. You’ll also support open, free use of map data by using OSM instead of a commercial product (like Google). This will become important when you need to actually do something with your map that’s not permitted by Google (see <a href="https://geojournalism.org/2013/08/downloading-map-information-from-openstreetmap/" target="_blank" title="Downloading map information from Openstreetmap">Downloading map information from OpenStreetMap</a>). It’s also important because you can edit OSM immediately – no need to wait for edits to go through a corporate review process. You can then start using your map right away. Of course, if you create something incorrect, the thousands of users worldwide will monitor and remove it. This is called a Wiki – and works something like Wikipedia to keep the maps accurate.</p> <h2 class="summary-item" id="first-steps"><a href="#first-steps">First Steps</a></h2> <p>Go to <a href="https://www.openstreetmap.org/">www.openstreetmap.org</a>. First, click Login in the righthand upper corner and either register yourself or log in if you’re registered already. You have to have an account in order to edit the map.</p> <p>Then, center the map image on the place you wish to edit. You can use the Search box on the left hand side to find your area, or use the zoom button to zoom out then slide the map to your desired location, and zoom back in.</p> <p>Then click the small arrow to the right of the word Edit above the map. There will be a drop down menu. Select “edit with iD”.</p> <p style="text-align: center;"><img alt="OpenStreetmap editing with ID" class="aligncenter wp-image-317" decoding="async" fetchpriority="high" height="302" sizes="(max-width: 614px) 100vw, 614px" src="https://geojournalism.org/wp-content/uploads/2013/08/osm-id01-1024x503.png" srcset="https://geojournalism.org/wp-content/uploads/2013/08/osm-id01-1024x503.png 1024w, https://geojournalism.org/wp-content/uploads/2013/08/osm-id01-300x147.png 300w" width="614"/></p> <p>You can always do the Walkthrough in order to see how to use this editing software. Or, click “Edit Now” and follow this tutorial!</p> <h2 class="summary-item" id="editing-your-map"><a href="#editing-your-map">Editing your map</a></h2> <p>You may be told to “Zoom in to Edit the Map” if you’re not sufficiently zoomed in – just click there. Once the software displays all the mapped features on top of a nice satellite image provided by Bing, you can see a hand replace the arrow of the mouse pointer. Then you can grab and slide the map around to make sure it’s in the right place. </p><div class="et-tabs-container et_sliderfx_fade et_sliderauto_false et_sliderauto_speed_5000 et_slidertype_top_tabs"> <ul class="et-tabs-control"> <li><a href="#"> Step 1 </a></li> <li><a href="#"> Step 2 </a></li> <li><a href="#"> Step 3 </a></li> <li><a href="#"> Step 4 </a></li>  <li><a href="#"> Step 5 </a></li> <li><a href="#"> Step 6 </a></li> </ul> <!-- .et-tabs-control --> <div class="et-tabs-content"> <div class="et-tabs-content-wrapper"> <div class="et_slidecontent"> Next, we will be adding a water feature – a river – to the map. Click on where it says “Line”.<p></p> <p style="text-align: center;"><img alt="" class="aligncenter wp-image-318" decoding="async" height="355" sizes="(max-width: 614px) 100vw, 614px" src="https://geojournalism.org/wp-content/uploads/2013/08/osm-id02-1024x591.png" srcset="https://geojournalism.org/wp-content/uploads/2013/08/osm-id02-1024x591.png 1024w, https://geojournalism.org/wp-content/uploads/2013/08/osm-id02-300x173.png 300w, https://geojournalism.org/wp-content/uploads/2013/08/osm-id02.png 2043w" width="614"/></p> </div> <div class="et_slidecontent"> Then click at the beginning of the river in your screen. You can then click again along the path of the river, creating an approximation of the river. Pop up windows with text will help you along the way. At the end of the line, double click and your river map is complete.<p></p> <p style="text-align: center;"><img alt="" class="aligncenter wp-image-319" decoding="async" height="361" sizes="(max-width: 614px) 100vw, 614px" src="https://geojournalism.org/wp-content/uploads/2013/08/osm-id03-1024x602.png" srcset="https://geojournalism.org/wp-content/uploads/2013/08/osm-id03-1024x602.png 1024w, https://geojournalism.org/wp-content/uploads/2013/08/osm-id03-300x176.png 300w, https://geojournalism.org/wp-content/uploads/2013/08/osm-id03.png 2037w" width="614"/></p> </div> <div class="et_slidecontent"> After you double-click, this side bar will pop up asking you what type of feature you’re mapping. Select in this case, Water, then River.<p></p> <p style="text-align: center;"><img alt="" class="aligncenter wp-image-320" decoding="async" height="359" loading="lazy" sizes="auto, (max-width: 614px) 100vw, 614px" src="https://geojournalism.org/wp-content/uploads/2013/08/osm-id04-1024x598.png" srcset="https://geojournalism.org/wp-content/uploads/2013/08/osm-id04-1024x598.png 1024w, https://geojournalism.org/wp-content/uploads/2013/08/osm-id04-300x175.png 300w, https://geojournalism.org/wp-content/uploads/2013/08/osm-id04.png 2034w" width="614"/></p> </div> <div class="et_slidecontent"> Then you’ll be asked to add a name for the river. You can add it in the original, local language. You’ll see a down arrow to the right of the name box; click there and another box will open. There on the lefthand side you can select a secondary language like English and write the name in that one too. This is a good idea when you want to make sure all the languages of map users will be represented.<p></p> <p style="text-align: center;"><img alt="" class="aligncenter wp-image-321" decoding="async" height="356" loading="lazy" sizes="auto, (max-width: 614px) 100vw, 614px" src="https://geojournalism.org/wp-content/uploads/2013/08/osm-id05-1024x594.png" srcset="https://geojournalism.org/wp-content/uploads/2013/08/osm-id05-1024x594.png 1024w, https://geojournalism.org/wp-content/uploads/2013/08/osm-id05-300x174.png 300w, https://geojournalism.org/wp-content/uploads/2013/08/osm-id05.png 2035w" width="614"/></p> <p>If you click where it says “All tags”, you’ll see how the name and feature are being recorded in the OpenStreetMap database. This is useful to know in case later on you end up using a different editor. This is the standard tagging structure for OSM.</p> </div> <div class="et_slidecontent"> If you click on the upper right hand button shaped like a square above the name, you’ll see how the tag was determined and get a link to the OSM wiki. This is because many times (though not for a river which is fairly simple) people will discuss how to categorize things and try to come to collective decisions on the tagging. If you end up mapping something unusual and can’t find a tag category for it, try looking there.<p></p> <p>Now go ahead and click Save.</p> <p style="text-align: center;"><img alt="osm-id06" class="aligncenter wp-image-322" decoding="async" height="356" loading="lazy" sizes="auto, (max-width: 614px) 100vw, 614px" src="https://geojournalism.org/wp-content/uploads/2013/08/osm-id06-1024x593.png" srcset="https://geojournalism.org/wp-content/uploads/2013/08/osm-id06-1024x593.png 1024w, https://geojournalism.org/wp-content/uploads/2013/08/osm-id06-300x174.png 300w" width="614"/></p> </div> <div class="et_slidecontent"> You’ll see a list of your changes to the map. You should add a quick message about what you’re adding, in case someone wants to follow up and verify it or contact you later about it. Once you hit the final save button, your addition is live on OSM!<p></p> <p><em><strong>What if I made a mistake on the line?</strong></em></p> <p>There are several ways to make changes to your line. In the example, there is a spot where I want to add more points so the line is better following the curve of the river path. As you can see below if you click once on the line where there is no point, a grey dot appears. If you click again there and hold, you can add a point there and move it around.</p> <p style="text-align: center;"><img alt="osm-id07" class="aligncenter wp-image-323" decoding="async" height="362" loading="lazy" sizes="auto, (max-width: 614px) 100vw, 614px" src="https://geojournalism.org/wp-content/uploads/2013/08/osm-id07-1024x604.png" srcset="https://geojournalism.org/wp-content/uploads/2013/08/osm-id07-1024x604.png 1024w, https://geojournalism.org/wp-content/uploads/2013/08/osm-id07-300x176.png 300w, https://geojournalism.org/wp-content/uploads/2013/08/osm-id07.png 2024w" width="614"/></p> <p>The semicircle that pops up around the grey dot also gives you some options, like discard that part of the line or in the case of a river, change the direction of the river flow. You’ll see some arrows on your river, which are meant to indicate which direction it flows. Make sure you have that correct, too. Don’t worry if you’ve already saved, everything in OSM can be edited at any time!</p> </div> </div> </div> </div> .et-tabs-container <p></p> <h2 class="summary-item" id="share-your-map"><a href="#share-your-map">Share your map</a></h2> <p>After you’ve saved, you should let everyone know by sharing on Facebook or Twitter! Or just go see your edit in the live map.</p> <p style="text-align: center;"><img alt="osm-id08" class="aligncenter wp-image-324" decoding="async" height="357" loading="lazy" sizes="auto, (max-width: 614px) 100vw, 614px" src="https://geojournalism.org/wp-content/uploads/2013/08/osm-id08-1024x595.png" srcset="https://geojournalism.org/wp-content/uploads/2013/08/osm-id08-1024x595.png 1024w, https://geojournalism.org/wp-content/uploads/2013/08/osm-id08-300x174.png 300w, https://geojournalism.org/wp-content/uploads/2013/08/osm-id08.png 2042w" width="614"/></p> <p>Here is your changeset or any changes you’ve made:</p> <p style="text-align: center;"><img alt="osm-id09" class="aligncenter wp-image-325" decoding="async" height="341" loading="lazy" sizes="auto, (max-width: 614px) 100vw, 614px" src="https://geojournalism.org/wp-content/uploads/2013/08/osm-id09-1024x569.png" srcset="https://geojournalism.org/wp-content/uploads/2013/08/osm-id09-1024x569.png 1024w, https://geojournalism.org/wp-content/uploads/2013/08/osm-id09-300x166.png 300w" width="614"/></p> <p>What if you made a mistake? I’ve actually named this river myself so the name is incorrect. Well, someone might come along and delete my edit. Eventually that will in fact happen. But I can also remove the name myself.</p> <p>I just go back to the window where I was editing the map (it should still be open) and click the river again to open the editing window. I click where it says All tags to open the tag list. Next to the names, I click the small trash can and the names disappear. Don’t forget to Save!</p> <h2 class="summary-item" id="conclusion"><a href="#conclusion">Conclusion</a></h2> <p>That’s all! For much more information on mapping in iD please see the Help section. Look for the small box on the upper left hand side of the map and click:</p> <p style="text-align: center;"><img alt="" class="aligncenter wp-image-326" decoding="async" height="363" loading="lazy" sizes="auto, (max-width: 614px) 100vw, 614px" src="https://geojournalism.org/wp-content/uploads/2013/08/osm-id10-1024x605.png" srcset="https://geojournalism.org/wp-content/uploads/2013/08/osm-id10-1024x605.png 1024w, https://geojournalism.org/wp-content/uploads/2013/08/osm-id10-300x177.png 300w, https://geojournalism.org/wp-content/uploads/2013/08/osm-id10.png 2027w" width="614"/></p> <div class="author-shortcodes"> <div class="author-inner"> <div class="author-image"> <img alt="" src="https://geojournalism.org/wp-content/uploads/2013/09/mikel.jpg"/> <div class="author-overlay"></div> </div> <!-- .author-image --> <div class="author-info"> <strong>Mikel Maron</strong> (<a href="https://twitter.com/mikel">@mikel</a>) is a programmer and geographer working for impactful community and humanitarian uses of open source and open data. He is co-founder of <a href="https://groundtruth.in/">Ground Truth Initiative</a>, and of the <a href="https://mapkibera.org/">Map Kibera</a> project. He’s also Founder and President of the <a href="https://hot.openstreetmap.org/">Humanitarian OpenStreetMap Team</a>, having helped to facilitate the OSM response to the Haiti earthquake. He’s travelled widely, organizing projects in India, Palestine, Egypt, Swaziland, and elsewhere. Previously to this, he co-founded Mapufacture and worked on collaborative platforms, geoweb standards, and various applications, with a wide spectrum of organizations from UN and government agencies to anarchist hacker collectives. </div> <!-- .author-info --> </div> <!-- .author-inner --> </div> .author-shortcodes <meta content="text/html; charset=utf-8" http-equiv="Content-Type"/> <p>The post <a href="https://geojournalism.org/2013/08/openstreetmap-editing-using-id/">OpenStreetMap editing using ID</a> appeared first on <a href="https://geojournalism.org">geojournalism.org</a>.</p> 316 https://geojournalism.org/2013/08/downloading-map-information-from-openstreetmap/ Erica Hagen Fri, 16 Aug 2013 00:52:08 +0000 Data Maps cartography Open Street Map https://geojournalism.oeco.org.br/?p=310 <p>You may wish to actually get at the data in OpenStreetMap and extract a spreadsheet of information &#8211; not just latitude and longitude but also every detail about each point of interest or feature. Introduction OpenStreetMap&#160;is a terrific tool for mapping and editing maps. It is a user-created map of the world, made by thousands [&#8230;]</p> <p>The post <a href="https://geojournalism.org/2013/08/downloading-map-information-from-openstreetmap/">Downloading map information from OpenStreetMap</a> appeared first on <a href="https://geojournalism.org">geojournalism.org</a>.</p> <p>You may wish to actually get at the data in OpenStreetMap and extract a spreadsheet of information – not just latitude and longitude but also every detail about each point of interest or feature.<span id="more-310"></span></p> <h2 class="summary-item" id="introduction"><a href="#introduction">Introduction</a></h2> <p><a href="https://www.openstreetmap.org/">OpenStreetMap</a> is a terrific tool for mapping and editing maps. It is a user-created map of the world, made by thousands of participants over the years. The structure is much like Wikipedia – anyone can edit the map, and users correct each others’ errors so that the results you see are highly accurate.</p> <p>Adding your own map information to OSM is covered <a href="https://geojournalism.org/2013/08/openstreetmap-editing-using-id/" title="OpenStreetMap editing using ID">here</a>.</p> <p>Often, you’ll want to take part of the map you see on the OSM site and use it somewhere else, like on your website or blog as an illustration. This tutorial focuses on taking a map image off of the main OSM site so you can use it someplace else.</p> <p><strong>Tips</strong></p> <p>Make sure that the area you want to show on your map is actually mapped well before you start. You can follow the first step of the tutorial to find out. If it’s not go ahead and <a href="https://geojournalism.org/2013/08/openstreetmap-editing-using-id/" title="OpenStreetMap editing using ID">add your own information</a>.</p> <p>You may wish to actually get at the data in OpenStreetMap and extract a spreadsheet of information – not just latitude and longitude but also every detail about each point of interest or feature. Remember, there can be a lot in the OSM database that isn’t immediately visible – say, opening hours of a clinic or really anything someone wished to add. In order to do this, you should see <a href="https://overpass-turbo.eu/">https://overpass-turbo.eu</a>. It is not covered in this tutorial.</p> <h2 class="summary-item" id="starting-a-new-map"><a href="#starting-a-new-map">Starting a new Map</a></h2> <p>First, go to <a href="https://www.openstreetmap.org/">www.openstreetmap.org</a>.</p> <p>There is a search box on the lefthand side of the homepage. You can type in there the name of the place you want to find on the map. A list of options will come up and if your area is mapped, it will appear there. Click on it to get to the part of the world you want to capture.</p> <p>Or, you can zoom in and out of the map using the righthand side + and – buttons, and click and drag the map around using your mouse to find your part of the world. If it’s not well mapped, you might want to map it first yourself! Use the <a href="https://geojournalism.org/2013/08/openstreetmap-editing-using-id/" title="OpenStreetMap editing using ID">tutorial</a> or else, see <a href="https://learnosm.org/en/" target="_blank" title="Learn OSM">Learn OSM</a> to get into more depth with mapping.</p> <div class="et-tabs-container et_sliderfx_fade et_sliderauto_false et_sliderauto_speed_5000 et_slidertype_top_tabs"> <ul class="et-tabs-control"> <li><a href="#"> Step 1 </a></li> <li><a href="#"> Step 2 </a></li> </ul> <!-- .et-tabs-control --> <div class="et-tabs-content"> <div class="et-tabs-content-wrapper"> <div class="et_slidecontent"> <p>Once you’ve found the place you want, your screen should look something like this:</p> <p style="text-align: center;"><img alt="" class="aligncenter wp-image-311" decoding="async" height="326" loading="lazy" sizes="auto, (max-width: 614px) 100vw, 614px" src="https://geojournalism.org/wp-content/uploads/2013/08/openstreetmaps01-1024x543.png" srcset="https://geojournalism.org/wp-content/uploads/2013/08/openstreetmaps01-1024x543.png 1024w, https://geojournalism.org/wp-content/uploads/2013/08/openstreetmaps01-300x159.png 300w" width="614"/></p> </div> <div class="et_slidecontent"> You don’t even have to log in to take this data right from the website to your computer desktop. First, drag the map around and zoom in and out to show the exact area that you are going to want. Click where it says <em>Export</em>.<p></p> <p style="text-align: center;"><img alt="" class="aligncenter wp-image-312" decoding="async" height="328" loading="lazy" sizes="auto, (max-width: 614px) 100vw, 614px" src="https://geojournalism.org/wp-content/uploads/2013/08/openstreetmaps02-1024x547.png" srcset="https://geojournalism.org/wp-content/uploads/2013/08/openstreetmaps02-1024x547.png 1024w, https://geojournalism.org/wp-content/uploads/2013/08/openstreetmaps02-300x160.png 300w" width="614"/></p> <p>The latitude and longitude coordinates shown will correspond to the edges of the actual map image you see, so you can leave them alone since you already adjusted that. </p></div> </div> </div> </div> .et-tabs-container <p></p><h2 class="summary-item" id="formatting-your-map"><a href="#formatting-your-map">Formatting your map</a></h2> <p>Where it says <em>Format to Export</em>, at this point we just want an image file so you can leave it on Map Image. Below, choose your preferred format to export.</p> <p>Where it says <em>Scale</em>, you might need to experiment with the size. The Maximum is given, and if you type in that exact number (in my example, it’s 21000) you’ll get every tiny bit of data in that box and a fairly large file size. The number given in my example is 65272 (actually less than 21,000 because it’s a ratio 1:x) will give you a fairly small file size and image, so if you zoom in it becomes pixelated. Choose the size that best works for your particular needs, and hit <em>Export</em>. That’s all – now you have a nice image to put on your blog post or website – or a printed document of any kind.</p> <p>If you want to get a little more advanced, and use the HTML code, you can also place a marker onto the map and then put the code into your website directly.</p> <div class="et-tabs-container et_sliderfx_fade et_sliderauto_false et_sliderauto_speed_5000 et_slidertype_top_tabs"> <ul class="et-tabs-control"> <li><a href="#"> Step 1 </a></li> <li><a href="#"> Step 2 </a></li> </ul> <!-- .et-tabs-control --> <div class="et-tabs-content"> <div class="et-tabs-content-wrapper"> <div class="et_slidecontent"> <p>Click where it says <em>Embeddable HTML</em>.</p> <p style="text-align: center;"><img alt="" class="aligncenter wp-image-313" decoding="async" height="326" loading="lazy" sizes="auto, (max-width: 614px) 100vw, 614px" src="https://geojournalism.org/wp-content/uploads/2013/08/openstreetmaps03-1024x543.png" srcset="https://geojournalism.org/wp-content/uploads/2013/08/openstreetmaps03-1024x543.png 1024w, https://geojournalism.org/wp-content/uploads/2013/08/openstreetmaps03-300x159.png 300w" width="614"/></p> </div> <div class="et_slidecontent"> If you want, click where it says <em>Add a marker to the map</em> and click on the map to add a little pointer.<p></p> <p style="text-align: center;"><img alt="" class="aligncenter wp-image-314" decoding="async" height="322" loading="lazy" sizes="auto, (max-width: 614px) 100vw, 614px" src="https://geojournalism.org/wp-content/uploads/2013/08/openstreetmaps04-1024x537.png" srcset="https://geojournalism.org/wp-content/uploads/2013/08/openstreetmaps04-1024x537.png 1024w, https://geojournalism.org/wp-content/uploads/2013/08/openstreetmaps04-300x157.png 300w" width="614"/></p> <p>Then copy-paste the HTML displayed in the box into your website. </p></div> </div> </div> </div> .et-tabs-container <p></p><p><strong>That’s it!</strong></p> <div class="author-shortcodes"> <div class="author-inner"> <div class="author-image"> <img alt="" src="https://geojournalism.org/wp-content/uploads/2013/09/erica-hagen.jpg"/> <div class="author-overlay"></div> </div> <!-- .author-image --> <div class="author-info"> <strong>Erica Hagen</strong> is a journalist and international development practitioner working for democracy of information and citizen participation in both online and traditional media. She is the co-founder of Map Kibera and GroundTruth Initiative. She received a Master’s of International Affairs from Columbia University in New York, where she focused on journalism and international development. She has worked in four countries on development communication and evaluation, and in the United States on refugee and immigrant issues, for organizations such as United Nations Population Fund, Concern Worldwide, and Unicef. She holds a B.A. in Religion from Reed College. More from Erica: <a href="https://www.ericahagen.com/">https://www.ericahagen.com/</a> </div> <!-- .author-info --> </div> <!-- .author-inner --> </div> .author-shortcodes <meta content="text/html; charset=utf-8" http-equiv="Content-Type"/> <p>The post <a href="https://geojournalism.org/2013/08/downloading-map-information-from-openstreetmap/">Downloading map information from OpenStreetMap</a> appeared first on <a href="https://geojournalism.org">geojournalism.org</a>.</p> 310 https://geojournalism.org/2013/08/how-to-map-photos-using-openstreetmap-and-tilemill/ Mikel Maron Wed, 14 Aug 2013 21:29:27 +0000 Maps cartography geotagging map design Open Street Map https://geojournalism.oeco.org.br/?p=268 <p>This guide takes four steps, demonstrating an overview of the whole flow and connection between four tools to build a photo map. This guide will hit the main points and highlight how the tools connect up with open data Introduction Recently, we organized a fun skill share with Map Kibera, and then again with Transparent [&#8230;]</p> <p>The post <a href="https://geojournalism.org/2013/08/how-to-map-photos-using-openstreetmap-and-tilemill/">How to Map Photos Using OpenStreetMap and TileMill</a> appeared first on <a href="https://geojournalism.org">geojournalism.org</a>.</p> <p>This guide takes four steps, demonstrating an overview of the whole flow and connection between four tools to build a photo map. This guide will hit the main points and highlight how the tools connect up with open data<span id="more-268"></span></p> <h2 class="summary-item" id="introduction"><a href="#introduction">Introduction</a></h2> <p>Recently, we organized a fun skill share with <a href="https://mapkibera.org/" rel="nofollow">Map Kibera</a>, and then again with <a href="https://www.transparentchennai.com/" rel="nofollow">Transparent Chennai</a>. The idea is to use OpenStreetMap and TileMill to create an interactive photo map. Here’s the <a href="https://a.tiles.mapbox.com/v3/groundtruth.map-vx5bbbu4/page.html" rel="nofollow">simple result</a> from working with Map Kibera.</p> <p><strong>Want to learn to create something like this?</strong> This guide takes four steps, demonstrating an overview of the whole flow and connection between four tools to build a photo map. This guide will hit the main points, highlight how the tools connect up with open data, and I’ll just link to other resources for the details on how to use each.</p> <h2 class="summary-item" id="upload-photos-to-flickr"><a href="#upload-photos-to-flickr">Upload Photos to Flickr</a></h2> <ul> <li>What you need: A photo of a place to map.</li> <li>What you get: Link to the photo page and photo preview.</li> <li>Learn more: <a href="https://www.flickr.com/help/photos/" rel="nofollow">Flickr Help</a></li> </ul> <p>If you don’t have a <a href="https://flickr.com/" rel="nofollow">Flickr</a> account, create one, it’s an easy way to share images. Upload a photo of a place. For our example, we uploaded <a href="https://www.flickr.com/photos/mikel_maron/9420814521/" rel="nofollow">this photo of the iHub in Nairobi</a>, taken during the Uchaguzi election project. We created a <a href="https://www.flickr.com/groups/2274104@N21/" rel="nofollow">Map Kibera group</a> to hold all our collective photos. <em><br/> </em></p> <div class="wp-caption aligncenter" id="attachment_664" style="width: 727px"><a href="https://geojournalism.org/wp-content/uploads/2013/08/9508348007_2c645cceeb_b.jpg"><img alt="Credit: Mikel Maron, Ground Truth Initiative" aria-describedby="caption-attachment-664" class="wp-image-664" decoding="async" height="354" loading="lazy" sizes="auto, (max-width: 717px) 100vw, 717px" src="https://geojournalism.org/wp-content/uploads/2013/08/9508348007_2c645cceeb_b.jpg" srcset="https://geojournalism.org/wp-content/uploads/2013/08/9508348007_2c645cceeb_b.jpg 1024w, https://geojournalism.org/wp-content/uploads/2013/08/9508348007_2c645cceeb_b-300x148.jpg 300w" width="717"/></a><p class="wp-caption-text" id="caption-attachment-664">Credit: Mikel Maron, Ground Truth Initiative</p></div> <p><span style="font-size: 13px; line-height: 19px;">From your photo page, click the </span><strong style="font-size: 13px; line-height: 19px;">Share</strong><span style="font-size: 13px; line-height: 19px;"> button, and then the </span><strong style="font-size: 13px; line-height: 19px;">Grab the HTML/BBCode</strong><span style="font-size: 13px; line-height: 19px;"> panel. Select a “Small” image size, and copy/paste the HTML code into a text editor/word processor. We need only the image link, which is within the </span><strong style="font-size: 13px; line-height: 19px;"><img alt="" decoding="async" src="..."/></strong><span style="font-size: 13px; line-height: 19px;"> tag.</span></p> <p>The result you should have is a link to the photo page, and the photo preview. Something like:</p> <pre><code>https://www.flickr.com/photos/mikel_maron/9420814521/ https://farm4.staticflickr.com/3673/9420814521_f71924dd4e.jpg</code></pre> <h2 class="summary-item" id="edit-openstreetmap"><a href="#edit-openstreetmap">Edit OpenStreetMap</a></h2> <ul> <li>What you need: Location of your photo.</li> <li>What you get: OpenStreetMap feature linked to the image.</li> <li>Learn more: <a href="https://learnosm.org/en/" rel="nofollow">LearnOSM</a></li> </ul> <p>Now, over to <a href="https://osm.org/" rel="nofollow">OpenStreetMap</a>. Sign up if needed, and review the basics in <a href="https://learnosm.org/en/" rel="nofollow">LearnOSM</a>. Also, try the iD Walkthrough: navigate to an area, click <strong>Edit</strong> (specifically, click the down arrow, and select “Edit with iD”), and follow along the editing tutorial.</p> <p><strong>Now</strong> open the <strong>View</strong> tab again. Enter the name of the location of your photo, and search. In our case, it’s “iHub”. Look through the search results, and find the correct feature, <em>there might be more than one feature with that name</em>, and then click <strong>View Details</strong> to open the <a href="https://www.openstreetmap.org/browse/node/673988331" rel="nofollow">browse page for that node</a>. This page shows the location and tags for the feature, and in the lower right, click the <strong>Edit Node</strong> link.</p> <p><em>Often you’ll need to add a new feature in OSM, rather than add to an existing feature. Check out the other guides to learn more.</em></p> <div class="wp-caption aligncenter" id="attachment_651" style="width: 727px"><a href="https://geojournalism.org/wp-content/uploads/2013/08/9511330104_a4bdec07e4_b.jpg"><img alt="Credit: Mike Maron" aria-describedby="caption-attachment-651" class="wp-image-651" decoding="async" height="365" loading="lazy" sizes="auto, (max-width: 717px) 100vw, 717px" src="https://geojournalism.org/wp-content/uploads/2013/08/9511330104_a4bdec07e4_b.jpg" srcset="https://geojournalism.org/wp-content/uploads/2013/08/9511330104_a4bdec07e4_b.jpg 1024w, https://geojournalism.org/wp-content/uploads/2013/08/9511330104_a4bdec07e4_b-300x152.jpg 300w" width="717"/></a><p class="wp-caption-text" id="caption-attachment-651">Credit: Mike Maron</p></div> <p>In the left panel, click All tags, then the +, to add the tags to link the image on flickr. Add “image”, then the link to the Flickr photo page. It will look like:</p> <pre> image=https://www.flickr.com/photos/mikel_maron/9420814521/</pre> <p>Click <strong>Save</strong>, add a commit message, and click <strong>Save</strong> again.</p> <p><strong>Caveats</strong></p> <p>Important: When you are taking photos, make sure to record which photo goes with which object! It can get confusing if there’s a lot.</p> <h2 class="summary-item" id="extraction-with-overpass-turbo"><a href="#extraction-with-overpass-turbo">Extraction with Overpass Turbo</a></h2> <ul> <li> What you need: A Deep Breath (take one now!)</li> <li>What you get: A GeoJSON file containing images and locations.</li> <li>Learn more: Overpass Turbo wiki page</li> </ul> <p>The OpenStreetMap website presents one view of the data you contribute. The powerful thing about OSM is that you can take the data and use it however you like. Extracting the data from OSM itself, for use in another tool, is what this step is about.</p> <div class="wp-caption aligncenter" id="attachment_652" style="width: 727px"><a href="https://geojournalism.org/wp-content/uploads/2013/08/9508838929_56cae156ed_b.jpg"><img alt="Credit: MIke Maron" aria-describedby="caption-attachment-652" class="wp-image-652" decoding="async" height="365" loading="lazy" sizes="auto, (max-width: 717px) 100vw, 717px" src="https://geojournalism.org/wp-content/uploads/2013/08/9508838929_56cae156ed_b.jpg" srcset="https://geojournalism.org/wp-content/uploads/2013/08/9508838929_56cae156ed_b.jpg 1024w, https://geojournalism.org/wp-content/uploads/2013/08/9508838929_56cae156ed_b-300x152.jpg 300w" width="717"/></a><p class="wp-caption-text" id="caption-attachment-652">Credit: MIke Maron</p></div> <p>Open <a href="https://overpass-turbo.eu/?key=image&amp;template=key-type&amp;type=node" target="_blank">Overpass Turbo</a> with the template to search for nodes with key “image”. <em>You can find links for other tags by exploring <a href="https://taginfo.openstreetmap.org/" target="_blank">TagInfo</a>, another great tool I’ll cover in a later skill share.</em> The interface has two panels, on the left the “Query” and the right the “Map”. Search and navigate the map to the area where your features are located. For us, the is “Nairobi”.</p> <p>The query to do the extraction can get complicated; you’ll see the template settings on the left, looking something like.</p> <pre>{{key=image}} {{type=node}}</pre> <p>Now click <strong>Run</strong>. Overpass will work for a few seconds, and then display the results on the map. You can click the points to get more info on each feature. Now click the <strong>Export</strong> menu, then the <strong>Data</strong> panel, and finally <strong>GeoJSON</strong>. This should trigger a download of the results, and a display of the results in the dialog (some browsers won’t automatically download, so copy/paste the GeoJSON from the dialog into a file, and save locally). Note the location of the GeoJSON file, we need it for the next step.</p> <h2 class="summary-item" id="groom-geojson"><a href="#groom-geojson">Groom GeoJSON</a></h2> <ul> <li>What you need: The GeoJSON created with Overpass Turbo.</li> <li>What you get: GeoJSON with image preview links</li> </ul> <p>To make our map, we need not only links to the Flickr page for the uploaded images, but also a link to the preview image itself. The <a href="https://mikelmaron.github.io/geojson-flickr-groomer/" target="_blank">GeoJSON Flickr Groomer</a> is a simple tool to create those links.</p> <div class="wp-caption aligncenter" id="attachment_653" style="width: 727px"><a href="https://geojournalism.org/wp-content/uploads/2013/08/9628249541_81308bae87_b.jpg"><img alt="Credit: Mikel Maron" aria-describedby="caption-attachment-653" class="wp-image-653" decoding="async" height="538" loading="lazy" sizes="auto, (max-width: 717px) 100vw, 717px" src="https://geojournalism.org/wp-content/uploads/2013/08/9628249541_81308bae87_b.jpg" srcset="https://geojournalism.org/wp-content/uploads/2013/08/9628249541_81308bae87_b.jpg 1024w, https://geojournalism.org/wp-content/uploads/2013/08/9628249541_81308bae87_b-300x225.jpg 300w" width="717"/></a><p class="wp-caption-text" id="caption-attachment-653">Credit: Mikel Maron</p></div> <p>Open the GeoJSON file downloaded from Overpass Turbo in your text editor. Copy all the content, and paste into the first text box. <strong>Click here to Run</strong>, then <strong>Download groomed-geojson.json</strong>. Note the location of the GeoJSON file, we need it for the final step.</p> <h2 class="summary-item" id="make-a-map-with-tilemill"><a href="#make-a-map-with-tilemill">Make a Map With TileMill</a></h2> <ul> <li>What you need: The GeoJSON modified by GeoJSON Flickr Groomer.</li> <li>What you get: An interactive map (finally!)</li> <li>Learn more: <a href="https://www.mapbox.com/tilemill/docs/crashcourse/introduction/" target="_blank">TileMill Crash Course</a> and <a href="https://www.mapbox.com/help/#help-mapbox" target="_blank">MapBox Help</a></li> </ul> <p>TileMill is a tool for designing maps. There’s a lot to it, so do check out the Crash Course, and other guides on the TileMill site. <a href="https://www.mapbox.com/tilemill/docs/install" target="_blank">Install TileMill</a>, start it up, and create a new project; uncheck <strong>Default</strong> data. Now, in the lower left, click the <strong>Layers</strong> buton, then <strong>Add Layer</strong>. For the <strong>Datasource</strong> field, browse and find the GeoJSON file downloaded from GeoJSON Flickr Groomer. Click <strong>Save &amp; Style</strong>, and you should see a map of your points on the left side of the screen. To zoom to the area of just your data, reopen the Layers dialog, and click the magnifying lens next to the layer.</p> <div class="wp-caption aligncenter" id="attachment_654" style="width: 727px"><a href="https://geojournalism.org/wp-content/uploads/2013/08/9511708544_e5c3d10335_b.jpg"><img alt="Credit: Mikel Maron" aria-describedby="caption-attachment-654" class="wp-image-654" decoding="async" height="394" loading="lazy" sizes="auto, (max-width: 717px) 100vw, 717px" src="https://geojournalism.org/wp-content/uploads/2013/08/9511708544_e5c3d10335_b.jpg" srcset="https://geojournalism.org/wp-content/uploads/2013/08/9511708544_e5c3d10335_b.jpg 1024w, https://geojournalism.org/wp-content/uploads/2013/08/9511708544_e5c3d10335_b-300x164.jpg 300w" width="717"/></a><p class="wp-caption-text" id="caption-attachment-654">Credit: Mikel Maron</p></div> <p>On the right, is CartoCSS, used to style your map. We want to make some small changes, making the background of the map transparent (by default it’s sea blue). Here’s what our CartoCSS looks like:</p> <pre>Map { background-color: transparent; } #images { marker-width:6; marker-fill:#f45; marker-line-color:#813; marker-allow-overlap:true; }</pre> <p>Now, add <strong>Interactivity</strong>, the dialog is reached by clicking the small hand in the lower left tool set. Click <strong>Full</strong>. Here you can specify what appears when you click on a point. All of the tags for these features from OSM are available, you’ll see them in a list at the bottom of the dialog in “Mustache” tags. We set the content to this below, to show the name of the feature, and a linked photo.</p> <pre>{{{name}}} <a href="%7B%7B%7Bimage%7D%7D%7D"><img alt="" decoding="async" src="href%7D%7D%7D"/></a></pre> <p>The map is ready to share! Sign up for a <a href="https://tiles.mapbox.com/signup" target="_blank">free account on MapBox</a>. Then back in TileMill, click the <strong>Export-&gt;Upload</strong> option in the upper right, configure the settings for the upload (try to minimize the upload size), and <strong>Upload</strong>. You can watch the progress of the export and upload, and then get a link to the map.</p> <p><a href="https://a.tiles.mapbox.com/v3/groundtruth.map-vx5bbbu4/page.html" target="_blank">Here’s ours</a>!</p> <h2 class="summary-item" id="results-and-your-challenge"><a href="#results-and-your-challenge">Results and your challenge</a></h2> <div class="wp-caption aligncenter" id="attachment_655" style="width: 727px"><a href="https://geojournalism.org/wp-content/uploads/2013/08/9511711840_3d97a64423_b.jpg"><img alt="Credit: Mikel Maron" aria-describedby="caption-attachment-655" class="wp-image-655" decoding="async" height="365" loading="lazy" sizes="auto, (max-width: 717px) 100vw, 717px" src="https://geojournalism.org/wp-content/uploads/2013/08/9511711840_3d97a64423_b.jpg" srcset="https://geojournalism.org/wp-content/uploads/2013/08/9511711840_3d97a64423_b.jpg 1024w, https://geojournalism.org/wp-content/uploads/2013/08/9511711840_3d97a64423_b-300x152.jpg 300w" width="717"/></a><p class="wp-caption-text" id="caption-attachment-655">Credit: Mikel Maron</p></div> <p>So this is it! To get the streets background, you’ll need to dive a little more into MapBox hosting configuration. <strong>Try it out on your own, with say, 10 images.</strong> If you have any questions about this guide, suggestions to improve it, or just want to share your results, get in touch. Thanks!</p> <div class="author-shortcodes"> <div class="author-inner"> <div class="author-image"> <img alt="" src="https://geojournalism.org/wp-content/uploads/2013/09/mikel.jpg"/> <div class="author-overlay"></div> </div> <!-- .author-image --> <div class="author-info"> <strong>Mikel Maron</strong> (<a href="https://twitter.com/mikel">@mikel</a>) is a programmer and geographer working for impactful community and humanitarian uses of open source and open data. He is co-founder of <a href="https://groundtruth.in/">Ground Truth Initiative</a>, and of the <a href="https://mapkibera.org/">Map Kibera</a> project. He’s also Founder and President of the <a href="https://hot.openstreetmap.org/">Humanitarian OpenStreetMap Team</a>, having helped to facilitate the OSM response to the Haiti earthquake. He’s travelled widely, organizing projects in India, Palestine, Egypt, Swaziland, and elsewhere. Previously to this, he co-founded Mapufacture and worked on collaborative platforms, geoweb standards, and various applications, with a wide spectrum of organizations from UN and government agencies to anarchist hacker collectives. </div> <!-- .author-info --> </div> <!-- .author-inner --> </div> .author-shortcodes <meta content="text/html; charset=utf-8" http-equiv="Content-Type"/> <p>The post <a href="https://geojournalism.org/2013/08/how-to-map-photos-using-openstreetmap-and-tilemill/">How to Map Photos Using OpenStreetMap and TileMill</a> appeared first on <a href="https://geojournalism.org">geojournalism.org</a>.</p> 268