Choropleth Map with Interactive Filtering

Choropleth Map with Interactive Filtering

A choropleth map displays global economies by country, colored with a spectral ordinal scale. Users click legend items to filter the map, which highlights matching countries and dims others. The visualization uses D3 v5 with `geoPath`, `geoNaturalEarth1`, and a `zoom` interaction, alongside a custom color legend built with `scaleOrdinal` and `schemeSpectral`. Data merges TopoJSON country boundaries with TSV attributes loaded from the `world-atlas` package.

NNoah Weinberg

Choropleth Map with Interactive Filtering

This choropleth map displays world countries colored by income group, with an interactive legend that filters the map when a color swatch is clicked. Hovering over a country reveals its name and value. The map renders geographic boundaries using `d3.geoPath` with a `geoNaturalEarth1` projection, while the legend is built from `scaleOrdinal` and `schemeSpectral`. Clicking a legend item sets a `selectedColorValue`, which adjusts country opacity and highlights matching regions, and also dims the sphere and non-matching legend entries. Country data comes from the world-atlas TopoJSON and TSV files.

RRussell Watson

Choropleth Map with Interactive Filtering

A choropleth map of world countries, colored by ordinal income group, includes a color legend that filters the map when clicked. Clicking a legend label dims all countries except those in that group; clicking the same label again clears the filter. The map uses the `geoNaturalEarth1` projection with SVG paths generated by `geoPath`, and the legend re-renders via an `onClick` handler. Data is loaded from a world-atlas TopoJSON and TSV files.

AAndreas Loew

Choropleth Map with Interactive Filtering

A choropleth map displays countries colored by economic grouping, with a legend of color categories that users can click to highlight matching regions and fade all others. The map uses a natural Earth projection via `d3.geoNaturalEarth1` and `d3.geoPath`, while the legend employs scale-ordinal colors from `schemeSpectral` and interactive click handlers. Panning and zooming are enabled through `d3.zoom`. The geographic data comes from the World Atlas TopoJSON, with ISO country mappings joined from TSV metadata.

Ccaydener

Choropleth Map with Interactive Filtering

A choropleth map displays global economic classifications by country, with a color legend encoding each category. Clicking a legend item filters the map, dimming non-matching countries while highlighting the selected group. Hovering reveals country names and values via tooltips. Built with D3 v5, it uses `geoNaturalEarth1` and `geoPath` for SVG map rendering, `scaleOrdinal` with `schemeSpectral` for colors, and `zoom` for panning. Data comes from TopoJSON world-atlas merged with TSV metadata.

Wwmiao7483

Choropleth map with interactive filtering

A choropleth map of world countries colored by income group, with interactive filtering through a color legend. Clicking a legend category highlights matching countries and dims others; clicking again clears the filter. The map uses a natural Earth projection via `d3.geoNaturalEarth1` and `d3.geoPath`, with zoom controls from `d3.zoom`. It loads TopoJSON country boundaries from the world-atlas dataset, merges names from a TSV file, and renders in SVG with `d3.scaleOrdinal` and `schemeSpectral`.

PPeter S

Choropleth Map with Interactive Filtering

A choropleth map displays countries colored by economy group using an ordinal color scale, with a sidebar legend of clickable swatches. Clicking a legend item filters the map to highlight only countries in that category, dimming non-matching regions and adjusting opacity. The visualization uses D3 v5’s `geoPath`, `geoNaturalEarth1`, `scaleOrdinal`, and `schemeSpectral` for cartographic rendering and coloring, while the legend handles events via `on('click')`. Country data merges TopoJSON geometry with TSV attributes from the world-atlas package.

JJakub

Choropleth Map with Interactive Filtering

A choropleth map of global economic data, colored by country using a spectral ordinal scale, lets viewers filter countries by clicking a color legend. The map renders with an SVG projection via `d3.geoNaturalEarth1` and `d3.geoPath`, supporting pan and zoom through `d3.zoom`. Legend clicks toggle highlighting of matching countries, dimming others. Country data merges TopoJSON geometries with TSV attributes from the world-atlas dataset, and legend interactions redraw both map and legend.

Iianleekq