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d3Edge_V5-dataLoading-v0.4

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JJimMaltby
Last edited Jul 8, 2022
Created on Jun 18, 2022

This example demonstrates a modular data-loading system for D3.js v5, built around a custom dispatch event manager. It loads a CSV file of Zurich transit delay data and a separate TopoJSON geographic file, applying a cleaning function to parse timestamps and coordinates. The code uses asynchronous `d3.csv` and `d3.json` loading with custom `dataLoading`, `dataReady`, and `geoReady` events, and exposes methods like `getCleanedData()` for console inspection. The visualization itself remains a placeholder, showing a loading message and instructions while the data pipeline runs.

AI-generated description

Exploration of how to develop a data loader using dispatch in v5. https://bl.ocks.org/mbostock/3750941 https://stackoverflow.com/questions/55137893/d3-event-loaded-in-d3-version-4 using the data loader example from "developing the d3.js edge"

MIT Licensed

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