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  <div class="vevent h-event"> <h1 class="summary p-name">Programming Open Source Web Spatio-Temporal Mapping Visualizations</h1> <div class='date'><time class="dtstart dt-start" title="2014-07-29T19:30:00" datetime="2014-07-29T19:30:00">Tuesday, July 29, 2014 from 7:30</time>–<time class="dtend dt-end" title="2014-07-29T21:00:00" datetime="2014-07-29T21:00:00">9pm</time></div> <div class="location vcard p-location h-card"> <a class="url" href='http://calagator.org/venues/202394357'><span class='fn org p-name'>Anna Bannanas Cafe, St Johns</span></a> <div class="adr p-adr h-adr"> <div class="street-address p-street-address">8716 N Lombard St</div> <span class="locality p-locality">Portland</span> , <span class="region p-region">Oregon</span> <span class="postal-code p-postal-code">97203</span> <div class="country-name p-country-name">US</div> (<a href='https://maps.google.com/maps?q=8716%20N%20Lombard%20St,%20Portland%20Oregon%2097203%20US'>map</a>) </div> </div> <div class="description p-description"> <p>Programming Open Source Web Spatio-Temporal Mapping Visualizations, MapTimeStJohns, Tue, July 29, 7:30pm to 9:00pm, Anna Bannanas coffee shop, 8716 N Lombard St, Portland. Let's get together and map :) (We meet in the back room)</p> <p>In June, we worked on creating a basic static map of floods with custom icons showing the size of the floods (a proportional symbol flood map). We went through a demo for using a slider to add amimation to a map... using the flood data it would allow users to see where and when the floods appeared.</p> <p>In July, I'll bring a completed example of a proportional symbol animated slider flood map that we will review. In addition, we will add one or two other techniques for developing spatio-temporal web visualizations (in leaflet and open layers). Then we will begin using Postgresql/postgis to setup spatial databases, populate them and perform spatial analysis operations.One of our long term goals will be to eventually use data from a spatial database in dynamic spatio-temporal visualizations.</p> <p>In July, bring your computer. If you have time prior to the meeting, load postgresql/postgis version 9.1 or later onto your computer.</p> <p>Programming Open Source Web Spatio-Temporal Mapping Visualizations, MapTimeStJohns, Tue, July 29, 7:30pm to 9:00pm, Anna Bannanas coffee shop, 8716 N Lombard St, Portland. 97203</p> </div> <h3>Links</h3> <ul> <li><a class="url u-url" href="http://www.meetup.com/MapTime_StJohns/events/189067092/">Website</a></li> </ul> </div>