javascript-d3How can I use D3.js Observable to create interactive data visualizations?
Creating interactive data visualizations with D3.js Observable is easy and straightforward.
Here is an example of how to create a basic scatter plot with a tooltip using D3.js Observable:
import {scatter, select} from "@d3/mitch-dataviz";
const data = [
{x: 10, y: 20},
{x: 15, y: 25},
{x: 20, y: 30}
];
const width = 500;
const height = 500;
scatter()
.width(width)
.height(height)
.data(data)
.render();
select("circle")
.on("mouseover", d => console.log(d))
.on("mouseout", () => console.log("mouseout"));
When a user hovers over a circle, the data object associated with the circle will be logged to the console.
The code above consists of the following parts:
- Importing the
scatter
andselect
functions from the@d3/mitch-dataviz
library - Defining the data to be used for the visualization
- Setting the width and height of the visualization
- Calling the
scatter
function to render the visualization - Using the
select
function to select the circles in the visualization and attachingmouseover
andmouseout
event handlers that log data to the console
For more information, see the D3.js Observable documentation.
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