Brush & Zoom

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✓ Published0🌍 Public

Last edited Aug 8, 2016

Created on Aug 4, 2016

This example implements a focus-plus-context visualization of monthly S&P 500 closing prices. The large focus chart displays the full time series as an area chart, while a smaller context chart below it includes a draggable brush for selecting a date range; zooming is performed via a transparent overlay rectangle supporting wheel and drag interactions. It uses the d3.brushX component for the selection and d3.zoom for the pan-and-scale transform, with both updating the focus area's x-axis domain. The data is loaded from a CSV file (sp500.csv), and all graphics are rendered as SVG paths.

AI-generated description

Combining d3-brush and d3-zoom to implement Focus + Context. Another approach is to zoom to the brushed region.

forked from <a href='http://bl.ocks.org/mbostock/'>mbostock</a>'s block: <a href='http://bl.ocks.org/mbostock/34f08d5e11952a80609169b7917d4172'>Brush & Zoom</a>

gpl-3.0 Licensed

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