Several months ago MapBox added a blog post to their site discussing vector tiles. As part of the post they had some fun examples including one based on comic books and one based on pirate treasure maps (created by AJ Ashton). Here are the thumbnails from that page. For other nice examples see the gallery. […]
Continue reading →The jQuery Before/After plugin is a great interactive tool to explore changes through time. This plugin has been used to great effect by the New York Times to show changes in Japan before and after the tsunami that destroyed the Fukushima Daiichi Nuclear Plant. In most examples of the plugin, though, the maps are static […]
Continue reading →The qgis2leaf plugin for QGIS makes it incredibly easy to create a basic, fully-functional Leaflet.js map using QGIS with no HTML/JavaScript/CSS programming. The plugin even allows you to use a variety of interesting basemaps including Stamen Watercolor (see our post on the watercolor map). To create a Leaflet map using the plugin follow these simple […]
Continue reading →Usually on this blog we include code and instructions from projects of our own. But in this case we wanted to bring your attention to an interesting and fun live travel map, created by Bjørn Sandvik, that makes use of some of our favorite mapping and charting tools. The tools include CartoDB (for live data […]
Continue reading →CartoDB has a nice dashboard you can use to upload shapefiles for viewing online. They have even included drag-and-drop functionality to help improve the experience. Nevertheless, uploading geographic files manually can be cumbersome and you can end up forgetting files sources, when you uploaded etc. Fortunately, CartoDB recently posted a Python script that you can […]
Continue reading →AngularJS is a powerful tool for creating single page web applications, particularly data driven applications. One of the most powerful features of Angular is its two-way data binding, the automatic synchronization of data between the view and the application itself. In this example, we demonstrate the two-way data binding using a table and LeafletJS map […]
Continue reading →For a recent project we were provided with a GIS shapefile of developments (primarily houses) in a suburban neighborhood in Ithaca, NY. We created static maps to show change through time with color coded dots for different time windows but we thought that the dataset was a perfect opportunity to show off CartoDB’s time series […]
Continue reading →A lot of government agencies and other institutions make map layers available through ArcGIS Server map services. The United States Geological Survey’s National Map Program, for example, makes services available for adding basemap, topography, weather and other layers. These map layers can often be a useful addition to your own online maps and a relatively […]
Continue reading →For a recent project we needed to significantly reduce the file sizes of some of the GeoJSON files were were using so we turned to Mike Bostock’s amazing TopoJSON APIs. As described on the wiki page TopoJSON is an extension of GeoJSON that significantly reduces file sizes by reducing redundancy. For example, the border between […]
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