d3 choropleth map

100%

d3 choropleth map

✓ Published0🌍 Public

Last edited Jul 24, 2020

Created on Jul 24, 2020

This interactive choropleth map visualizes the spread of COVID-19 cases across countries over time, using an animated timeline that cycles through daily data from January to July 2020. The map renders world country boundaries as SVG paths using the Eckert5 projection, with each country’s fill color dynamically updated based on its reported case count for the currently displayed date. Built with D3 v3, it leverages `d3.geo.path`, `d3.geo.eckert5`, `d3.geo.graticule`, TopoJSON for geographic data, and a CSV dataset, while a play button and date label drive the sequential animation.

AI-generated description

A bare minimum HTML page.

Similar vizzes

Loading thumbnail…

d3 choropleth map

This choropleth map visualizes the spread of COVID-19 cases over time, with an animating date slider and play/pause controls. The map uses d3.geoEckert5 projection, d3.geoPath, and TopoJSON, with color scales from colorbrewer and d3-scale-chromatic to shade regions by case counts. A draggable slider, built with d3.drag and d3.timeScale, shows daily case data from January to July 2020, while a legend and graticule provide spatial context.

Aashpradhan01123

95% match

Loading thumbnail…

d3 choropleth map

An animated choropleth map shows the global spread of confirmed COVID-19 cases over time, with countries colored by case counts using the YlGnBu color scale and displayed on an Eckert5 projection. Play and reset buttons control the animation, which cycles through daily date columns from the confirmed_global.csv time series data. The visualization is built with React and D3 v4, using `d3.geoEckert5()`, `d3.geoPath()`, TopoJSON for world geometries, and `d3.legendColor()` to render the ordinal legend.

Aashpradhan01123

94% match

Loading thumbnail…

Choropleth Map

This choropleth map visualizes the global distribution of COVID-19 cases using a red and green color scheme, with each country’s fill color indicating the presence of cases on a specific date. The map is rendered with SVG using D3’s `geoNaturalEarth1` projection and `geoPath` for geographic outlines, while `zoom` enables interactive panning. Data is loaded from a CSV file and merged with TopoJSON world geometry via `loadAndProcessData`, and a custom `colorLegend` component displays the categorical scale.

NNodirbek Parpibaev

87% match

Loading thumbnail…

Choropleth map

This choropleth map visualizes total COVID-19 cases by country, using a spectral color scale to encode case counts on a natural Earth projection. The map supports pan and zoom via d3.zoom, with tooltips showing country names and case values. It renders with d3.geoPath and TopoJSON world data, while a custom color legend built with D3 scales displays the ordinal color mapping. The data is loaded from a TSV file joined to country geometries.

VVaggelisKlt

86% match

Loading thumbnail…

Choropleth map

A choropleth map of COVID-19 cases by country, with each nation colored on a spectral scale via `d3.scaleOrdinal` and `d3.schemeSpectral`. Hovering highlights a country in red, and a click-drag zoom uses `d3.zoom` with a Natural Earth projection (`d3.geoNaturalEarth1`) and `d3.geoPath`. Data loads from a CSV and TopoJSON using `d3.csv`, `d3.json`, and `topojson.feature`; a custom color legend renders SVG circles and text.

VVaggelisKlt

86% match

Loading thumbnail…

Choropleth Map

This choropleth map visualizes global COVID-19 cumulative case counts by country, with each nation shaded according to its reported total. The map uses a natural Earth projection and is rendered as SVG, with a zoom interaction allowing users to inspect regions in detail. Data comes from a CSV file joined with world country boundaries from the World Atlas TopoJSON, while colors are assigned via d3.scaleOrdinal with a spectral scheme. Hovering reveals the country name and case count through an SVG title element.

Ggcappadaniel

86% match

Loading thumbnail…

Choropleth map

This choropleth map visualizes COVID-19 cases, deaths, and recent 14-day case counts by country, using color to encode case numbers and hover tooltips to reveal detailed statistics. The map uses `d3.geoNaturalEarth1` projection with `d3.geoPath` to render world geography, while `d3.scaleOrdinal` with `schemeSpectral` assigns colors to case values. Data is loaded from a TSV file and TopoJSON world atlas, processed with `topojson.feature`, and rendered as SVG paths. A custom color legend and `d3.zoom` are also implemented.

VVaggelisKlt

86% match

Loading thumbnail…

Choropleth Map

This choropleth map visualizes COVID-19 confirmed cases across countries, with color encoding based on economic classification. Users can click entries in the color legend to highlight matching countries on the map, while unselected countries fade in opacity. The map uses d3.geoNaturalEarth1 projection with d3.geoPath for rendering country boundaries, and d3.zoom for pan and zoom interactions. Both the map and legend are built as reusable functions, with data loaded from CSV files containing country metadata and daily case counts.

Iinroadings

86% match