vizwit | An interactive data visualization tool
kandi X-RAY | vizwit Summary
kandi X-RAY | vizwit Summary
An interactive data visualization tool. VizWit uses a JSON config file to generate interactive charts that cross-filter one another. It currently supports data hosted in Socrata and Carto, which includes open data provided by cities such as Philadelphia, Chicago, and San Francisco). Data that’s hosted elsewhere can be supported by adding a new data provider.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of vizwit
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QUESTION
I'd like to rewrite vizwit using Chart.js, and I'm having a hard time figuring out how to get the date/time chart interaction to work. If you try selecting a date range on this demo, you'll see that it filters the other charts. How do I get Chart.js to let me select a range like that on its time scale chart? It seems like by default it only lets me click on a specific date point.
Thanks for your time.
...ANSWER
Answered 2017-Mar-17 at 16:59Unfortunately, nothing like this is built into chart.js. You would have to implement your own event hooks and handlers that would render a highlighted section on a chart and then use the .getElementsAtEvent(e)
prototype method to figure out what data has been highlighted. Even these hooks that are built in may not be enough to implement what you are wanting.
Event hook options are:
Add event handlers on the canvas element itself (see example below)
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