Tag: renderers

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

Posted in App Developers, Developer, Web | Tagged , , , , , , , , , , | 3 Comments

Speed up your JavaScript development with autocasting

livebythecode

In the 4.5 release of the ArcGIS API for JavaScript, autocasting support was expanded to all renderers, symbols, and symbol layers. This means that symbols and renderers can be created programmatically without importing their modules. All you need to do … Continue reading

Posted in App Developers, Developer, Web | Tagged , , , , , , , | Leave a comment

Visualizing data in web apps: leveraging the platform

5-load-layer

The ArcGIS API for JavaScript contains powerful visualization capabilities that bring your data to life on the web. Some of these include using unclassified or classified color, size, opacity, and any combination of them to visualize numbers; unique symbols for … Continue reading

Posted in App Developers, Apps, Cartographic Design, Uncategorized, Web | Tagged , , , , , , , , | Leave a comment

Take advantage of the JavaScript symbol playground

bench

The 4.3 release of the ArcGIS API for JavaScript introduced an app called the Symbol Playground. Its purpose is to provide an environment where you can design 2D or 3D symbols with a simple user interface, copy the code used … Continue reading

Posted in App Developers, Apps, Uncategorized, Web | Tagged , , , , , | 4 Comments

Enliven your web apps with custom actions

predominance

The 4.x series of the ArcGIS API for JavaScript introduced the concept of actions. An action is a task that can be triggered by a user by clicking its simple button interface. For example, clicking the magnifying glass button on … Continue reading

Posted in App Developers, Apps, Web | Tagged , , , , , , , , | Leave a comment

Play in the JavaScript symbol playground

playground-app

Version 3.15 of the ArcGIS API for JavaScript introduced a convenient new app called the Symbol Playground to help developers create symbology for visualizing features in web applications. This app helps improve the experience for designing, coding, and ultimately understanding … Continue reading

Posted in App Developers, Apps, Developer, Uncategorized, Web | Tagged , , , , , , | Leave a comment