Vizzu-Story - Build and present animated data stories

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Vizzu-Story

About The Extension

Vizzu-Story is an extension for the Vizzu JavaScript library that allows users to create interactive presentations from the animated data visualizations built with Vizzu.

The extension provides a Web Component that contains the presentation and adds controls for navigating between slides - predefined stages within the story.

Installation

Install via npm:

npm install vizzu-story

Or use it from CDN:

import VizzuPlayer from 'https://cdn.jsdelivr.net/npm/vizzu-story@latest/dist/vizzu-story.min.js';

Usage

Create a vizzu-player element that will contain the rendered story:

<vizzu-player controller></vizzu-player>

In a script module element import the extension from CDN or local install:

<script type="module">
  import VizzuPlayer from 
  'https://cdn.jsdelivr.net/npm/vizzu-story@latest/dist/vizzu-story.min.js';
</script>

Add the underlying data for the data story. You can use the same data definition formats as in the Vizzu library, but you must add the entire data set for the whole story in the initial step; you can not change this later. See Data chapter for more details on data formats.

const data = {
    series: [{
        name: 'Foo',
        values: ['Alice', 'Bob', 'Ted']
    }, {
        name: 'Bar',
        values: [15, 32, 12]
    }, {
        name: 'Baz',
        values: [5, 3, 2]
    }]
};

Create the data story by defining a sequence of slides. A slide can be a single chart corresponding to an animate call from Vizzu. Or a slide can be a sequence of animation calls, in which case all of these animations will be played until the last one in the sequence, allowing for more complex transitions between slides.

const slides = [{
    config: {
        x: 'Foo',
        y: 'Bar'
    }
}, {
    config: {
        color: 'Foo',
        x: 'Baz',
        geometry: 'circle'
    }
}];

Navigation controls beneath the chart will navigate between the slides. You can use the PgUp and PgDn buttons, left and right arrows to navigate between slides, and the Home and End buttons to jump to the first or last slide.

On each chart, you can define the chart configuration and style with the same objects as in Vizzu. However, you can not modify the underlying data between the slides, only the data filter used.

interface Chart {
  config?: Vizzu.Config.Chart;
  filter?: Vizzu.Data.FilterCallback | null;
  style?: Vizzu.Styles.Chart;
  animOptions?: Vizzu.Anim.Options;
}

Put the data and the slide list into the story descriptor object. Here you can also set the story style property to set the chart style used for the whole story.

const story = {
    data: data,
    slides: slides
};

Then set up the created element with the configuration object:

const vp = document.querySelector('vizzu-player');
vp.slides = story;

Check out a live example in JSFiddle!

Documentation

Visit our Documentation site for more details and a step-by-step tutorial into Vizzu-Story or check out our Example gallery.

Contributing

We welcome contributions to the project; visit our Contributing guide for further info.

Contact

• Join our Slack: vizzu-community.slack.com
• Drop us a line at [email protected]
• Follow us on Twitter: https://twitter.com/VizzuHQ

License

Copyright © 2022-2023 Vizzu Inc.

Released under the Apache 2.0 License.