Favorite tooltip (simple version) v6

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Favorite tooltip (simple version) v6

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Last edited Sep 18, 2020

Created on Sep 18, 2020

This example demonstrates a line chart of stock closing prices over time, with a tooltip that highlights the data point nearest the mouse cursor. The visualization uses D3 v6 APIs including `d3.scaleTime`, `d3.scaleLinear`, and `d3.line` to render the SVG path, while a bisector function (`d3.bisector`) selects the closest date. A transparent rectangle captures mouse events, and a circle is repositioned via `d3.pointer` and transformations to show the current value. Data comes from a CSV file parsed with `d3.timeParse`.

AI-generated description

This is a follow on from a simple line graph and is based on @mbostock's example here.

It impliments a simple tooltip which I find particularly neat. This implimentation is designed as a simple example which will be built on to create a slightly more complex example.

This graph is part of the code samples for the update to the book D3 Tips and Tricks to version 6 of d3.js.

mit Licensed

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