MasteringD3js_Ch2 pt2-2

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MasteringD3js_Ch2 pt2-2

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Last edited Sep 5, 2021

Created on Jul 1, 2021

This example demonstrates a barcode chart built with D3.js v5, showing how to add, update, and remove data points over time. It uses exponentially distributed random intervals to generate timestamped data, which are rendered as vertical lines in SVG. The chart evolves through several stages: setting date accessors, fixing time intervals, and refining transitions between updates. Interactive buttons trigger data additions and removals, while the visualization uses d3.scaleTime for horizontal positioning and d3.selectAll for binding data to line elements.

AI-generated description

D3 Cook Book getting used to JS in d3 CH2 Problem in converting from v3 to v5 and looks like book has poor practice of d3.js (https://stackoverflow.com/questions/45181773/d3-js-raw-selection-get-error-uncaught-typeerror-cannot-read-property-0-of-u)

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