1.0Duke Libraries Center for Data and Visualization Scienceshttps://blogs.library.duke.edu/dataRyan Dennistonhttps://blogs.library.duke.edu/data/author/rcd2duke-edu/rich600338<blockquote class="wp-embedded-content" data-secret="8tVNIluKk8"><a href="https://blogs.library.duke.edu/data/2012/08/06/online-mapping-tools-geocommons/">Online Mapping Tools – GeoCommons</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://blogs.library.duke.edu/data/2012/08/06/online-mapping-tools-geocommons/embed/#?secret=8tVNIluKk8" width="600" height="338" title="“Online Mapping Tools – GeoCommons” — Duke Libraries Center for Data and Visualization Sciences" data-secret="8tVNIluKk8" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://blogs.library.duke.edu/data/wp-includes/js/wp-embed.min.js </script> Visualizing spatial data can be challenging.  Specialized software tools like ArcGIS produce excellent results, but often seem complex for relatively simple tasks. Several online tools have emerged recently that provide relatively easy alternatives for the display of spatial data.  In this post, we examine GeoCommons, a web based tool for presenting spatial data in detail.  … Continue reading →http://blogs.library.duke.edu/data/files/2012/03/t2-150x150.jpg