D3: Smoother highlight transitions

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D3: Smoother highlight transitions

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Last edited Aug 2, 2016

Created on Aug 2, 2016

A bar chart displays a static series of twenty numerical values, rendered as SVG rectangles. On mouseover, the individual bar's fill immediately changes to orange, and on mouseout, it smoothly transitions back to its original blue shade over 250 milliseconds using D3 v4's `.transition()` method. The chart uses `d3.scaleBand` for the x-axis and `d3.scaleLinear` for the y-axis, with each bar labeled by its value via text elements that have pointer-events disabled.

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