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Bar Chart Transitions - Positive to Negative

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SSpaceActuary
Last edited Dec 2, 2014
Created on Dec 2, 2014

Two bar charts animate the sign flip of an array of numerical data, with the bars passing through the horizontal zero axis. The example contrasts two easing strategies: a single cubic-in-out transition that makes bars appear to "float" across the axis, and a double transition using cubic-out then cubic-in to explicitly collapse bars to zero height before growing them to their new magnitude. Built with D3 v3, it uses SVG rectangles, a baseline line, and the `transition().duration().ease()` API for animated attribute updates.

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