Time-based maps

How to use Torque with CartoDB

@JacopoOttaviani

A time-based map visualises events developing over space and over time.

La persistencia de la memoria. Salvador Dalí, 1931

Like this: http://bit.ly/syria-war-map

Or this: http://bit.ly/libya-war-map

To make a time-based map you need:

• Location column (data type: geometry)
• Date column (data type: date)
• CartoDB's wizard called Torque 

Torque configuration

• Select the right time column
• You can configure duration, steps, shape, colour, stroke
• If you make it cumulative, markers do not disappear from the map
• If your markers belong to different categories, you can use «Torque Cat» and have markers of different colours

Questions?

Exercise #5. Time-based maps

Download, refine, geo-reference and map a dataset over space and time

Instructions:

1. Download the lybia_body_count.geojson from http://bit.ly/libya-torque
2. Load it on CartoDB
3. Map it over time/space with Torque
4. Publish your map (get the embed code)
5. Insert the embed code into a HTML file and play with parameters (download map.html from the folder and edit it)