# Getting Started Although the most straightforward way to use Torque is through either the CARTO Editor, or by passing the layer's viz.json to [CARTO.js](http://docs.carto.com/carto-engine/carto-js/getting-started/), many use cases work best with the standalone [Torque.js](https://github.com/CartoDB/torque/tree/master/dist). Assuming you have a public dataset with a `date` column, it is really simple to create an animated map with the library. First, you need to have a Leaflet map prepared in an HTML page: ```html
``` This HTML file automatically generates the Torque.js library, which includes any Torque dependencies. For Torque to work with your table, you only need a username, the name of the table, and a CartoCSS string to style the map. Leaflet's method `addTo` adds the Torque layer to the map. `play` runs the animation with the options specified in the CartoCSS properties. ```html ``` You can use any kind of tile source outside CARTO, by specifying the location of a [valid TileJSON](https://github.com/mapbox/tilejson-spec) file: ```javascript var torqueLayer = new L.TorqueLayer({ tileJSON: 'http://url.to/tile.json' cartocss: CARTOCSS }); ``` Optionally, it is also possible to use a custom SQL query for your visualization: ```javascript var torqueLayer = new L.TorqueLayer({ user : 'your_username', table : 'your_table_name', sql_query : 'SELECT * FROM your_table_name WHERE whatever' cartocss: CARTOCSS }); ``` Like in a video player, you can use animation control methods such as `play`, `stop` and `pause` at any point. Torque's animator fires a `change:time` event each time the animation "ticks" to the next frame, and there are a number of properties and methods that can be run during playback, which are detailed in the [API documentation](/carto-engine/torque/torqueapi/). At any point, for example, the styling of the layer's markers can be changed using the `layer.setCartoCSS('##style##')`. ## Usage Examples The best way to start learning about the library is by taking a look at some of the examples below: * A basic example using the WWI British Navy dataset - ([view live](http://cartodb.github.io/torque/examples/navy_leaflet.html) / [source code](https://github.com/CartoDB/torque/blob/master/examples/navy_leaflet.html)) * Using tileJSON to fetch tiles - ([view live](http://cartodb.github.io/torque/examples/tilejson.html) / [source code](https://github.com/CartoDB/torque/blob/master/examples/tilejson.html)) * A car's route at the Nürburgring track mapped in Torque - ([view live](http://cartodb.github.io/torque/examples/car.html) / [source code](https://github.com/CartoDB/torque/blob/master/examples/car.html)) ## Additional Torque Resources The following links contain examples, and other public information, about using Torque maps. - Torque [CartoCSS Reference page](https://github.com/cartodb/torque-reference), useful for building parsers, tests, compilers, and syntax highlighting/checking - CARTO repository of [examples](https://github.com/CartoDB/torque/tree/master/examples) - A CARTO [time example](http://cartodb.github.com/torque/) of a Torque map and data - CARTO wiki page describing [how spatial aggregration works](https://github.com/CartoDB/torque/wiki/How-spatial-aggregation-works) - The [Guardian's Data Blog](http://www.guardian.co.uk/news/datablog/interactive/2012/oct/01/first-world-war-royal-navy-ships-mapped) about Royal Navy ships in WWI using a Torque map - An example of how to create a [simple Torque visualization](https://github.com/CartoDB/torque#getting-started) and the [source code](https://github.com/CartoDB/torque/blob/master/examples/navy_leaflet.html) used to create the example - An example of how to use CARTO.js to [add a Torque layer from a named map with auth_tokens enabled](https://gist.github.com/chriswhong/a4d1e6305ecaf2ad507a)