Tag: data visualization

Thematic point clustering for data exploration

Clustering in the ArcGIS API for JavaScript is enabled outside the renderer, so clusters retain renderer properties and summarize the variable of interest on a cluster-by-cluster basis. In the example above, New York City 311 calls are visualized by the time of day each incident was reported. Cluster colors indicate the predominant time of day incidents were reported among features comprising the cluster.

Extracting meaningful information from large or dense point datasets can be challenging. Sometimes many points aren’t visible because they’re stacked on top of one another. Some datasets contain sparse data in some locations, but very dense data in others. Visualizations … Continue reading

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Clustering in ArcGIS Online Enables Data Exploration (September 2017)

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Have you ever had a dataset that contains too many points to see a clear pattern at the scale you wish to view your map? With today’s new release of ArcGIS Online, clustering is now available to help in this … Continue reading

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Exploring 3D object data in a custom web app

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In a session titled 3D Visualization with the ArcGIS API for JavaScript at the 2017 Esri User Conference (UC), Javier Gutierrez and I demonstrated some of the new visualization capabilities available in the JavaScript API. I’m particularly excited about Smart … Continue reading

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Creating a predominance visualization with Arcade

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At the March 2017 Esri Developer Summit, Dave Bayer and I gave a presentation on how to use Arcade expressions in web apps built on the ArcGIS platform. In that presentation I demonstrated a succinct way to create a predominance … Continue reading

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Using Smart Mapping in custom web apps

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Smart Mapping was released last year in the ArcGIS API for JavaScript, ArcGIS Online, and Portal for ArcGIS, providing easy-to-use tools for generating attractive default visualizations of geographic data on the web. The ArcGIS Online Map Viewer fully equips users … Continue reading

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What’s New in Smart Mapping (March 2016)

Predominance example

With the March 2016 release of ArcGIS Online, anyone can analyze and map multiple columns of related data, in order to determine which has the highest, or predominant, value for each feature. Try a predominance map any time you see … Continue reading

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