Tell Data Stories with Interactive Charts using Vizzu

The Power of Data Visualization: Unlocking Insights with Vizzu

Data is the backbone of informed decision-making, and its significance resonates across various aspects of our lives. Individuals, businesses, and organizations invest heavily in data collection operations, but the way data is presented is equally crucial. Effective data visualization can make all the difference in understanding and interpreting complex information.

Introducing Vizzu: A Game-Changer in Data Visualization

Vizzu is a free, open-source JavaScript library that revolutionizes the way we build animated charts, data stories, and interactive explorers. Unlike other chart libraries, Vizzu not only displays data but also animates it, making it more engaging and interactive.

Getting Started with Vizzu

To install Vizzu, simply run the command in your terminal or use its CDN. Creating a simple bar chart is a breeze with Vizzu. The core of any chart is the data, which consists of two types: dimensions and measures. Dimensions are categories, while measures are values.

Building a Simple Bar Chart

Let’s create some data for a bar chart:

const barData = [
{ Names: ['John', 'Mary', 'David'], Ages: [25, 31, 42] }
];

Next, we set up the HTML and style the div element:
“`


Then, we initialize the chart in the script.js file:

import Vizzu from ‘vizzu’;

const chart = new Vizzu(‘vizzu-bar’, barData);
chart.animate({
config: {
channels: {
x: ‘Names’,
y: ‘Ages’
}
}
});
“`
Adding Animations to Charts

Vizzu’s animation capabilities take chart visualization to the next level. To animate the bar chart, we need to call the animate method twice. The first call initializes the chart, while the second call defines the animation properties:
“`
chart.animate({
config: {
channels: {
x: ‘Names’,
y: ‘Ages’
}
}
});

chart.animate({
config: {
geometry: ‘circle’
},
transition: {
duration: 4000,
delay: 4000,
easing: ‘linear’
}
});
“`
Customizing Chart Appearance

Vizzu provides a range of options to customize chart appearance. We can change the color palette, font size, title, labels, legends, and geometry. Let’s apply Vizzu’s default colors to our bar chart:

chart.animate({
config: {
style: {
colorPalette: 'aterial'
}
}
});

We can also define custom color palettes that fit our brand’s identity or design requirements:

chart.animate({
config: {
style: {
colorPalette: 'rgb(255, 0, 0) rgb(0, 255, 0) rgb(0, 0, 255)'
}
}
});

Chart Configurations and Options

Vizzu provides a range of configuration options to adjust the chart’s layout, alignment, and sorting. We can add titles, labels, legends, and customize the geometry of chart elements. Let’s see how to change the geometry of a chart:

chart.animate({
config: {
geometry: 'line'
}
});

Conclusion

Effective data visualization is crucial in today’s data-driven world. Vizzu offers a powerful solution to create animated charts, data stories, and interactive explorers. By mastering Vizzu, you can unlock insights and present complex data in a meaningful way.