Torque runtime example | CartoDB.js

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Torque runtime example | CartoDB.js

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Last edited Sep 29, 2014

Created on Sep 29, 2014

This example shows the movement of Twitter messages across a map of Java, Indonesia, using a Torque animation over a Stamen toner tile layer. The visualization renders an arrow marker for each data point, with color intensity varying by the cumulative count of messages at each location. The code builds the map with Leaflet and CartoDB.js, applying a custom CartoCSS template that defines the torque frame count, aggregation function, and marker styling. Data comes from the "twitter_wowfakta" table hosted on the "andrew" CartoDB user account.

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This example displays a Torque animated map of Twitter data from the table `twitter_wowfakta`, showing cumulative point aggregation over time. It uses CartoDB.js with the Leaflet map API, initializing a map centered on Java with a Stamen toner basemap. The Torque layer is created via `cartodb.createLayer` with a custom CartoCSS template that sets cumulative aggregation, a marker width of 4 pixels, and a red fill color. The animation runs through the Torque runtime, which processes the data client-side to render temporal patterns.

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