Skip to main content
100%

Choropleth

✓ Published0🌍 Public
Aandrewxhill
Last edited Jan 3, 2013
Created on Jan 3, 2013

A world map rendered as a choropleth shades countries by population using a linear color scale. The visualization loads GeoJSON country borders from a CartoDB SQL query and draws them with D3’s `d3.geo.path` and a Robinson projection (`d3.geo.robinson`), with a graticule outline for the globe background. A `d3.behavior.zoom` handler pans and scales the entire SVG group, while mouseover and mouseout events adjust stroke width and fill opacity on individual country paths.

AI-generated description

Similar vizzes

Loading thumbnail…

Choropleth World population map

A choropleth world map visualizes population data by country, using sequential color intensity from a threshold color scale to represent population magnitude. The visualization employs a Robinson projection to render the geographic layout, with each country's fill color derived from a CSV dataset joined to the GeoJSON map data. Interactive features include tooltips on hover, displaying the country name and calculated population in millions, while click and hover events trigger opacity and stroke changes. The implementation utilizes d3.geoPath for map drawing, d3.scaleThreshold for color classification, and d3.queue for asynchronous data loading, all rendered as SVG elements within a styled HTML container.

Vvishusikka
88% match
Loading thumbnail…

Choropleth World population map

A choropleth map of the world colors each country according to its population, using a threshold color scale with a sequential red palette. Hovering over a country dims others and reveals a tooltip with the country name and population in millions, while clicking zooms the map. Population data is joined to GeoJSON country outlines via three-letter country codes, and the map is rendered as SVG using `d3.geoRobinson`, `d3.geoPath`, and `d3.scaleThreshold` with an animated `transition` on opacity and stroke.

Pprateekvasi
88% match
Loading thumbnail…

Choropleth Map

A choropleth map displays countries with a uniform green fill, turning red on hover while the ocean remains light blue. The visualization uses an orthographic projection, rendering country boundaries as SVG paths via the `geoPath` and `geoOrthographic` functions. It loads world map data from the `world-atlas` package (50m JSON and TSV files) and processes TopoJSON features with the `topojson` library. The `zoom` interaction allows panning and scaling the map through SVG transforms, with country names shown in tooltips.

SSophia Murage
87% match
Loading thumbnail…

Choropleth World population map

A choropleth map displays world population by country, with each nation colored on a gradient from light to dark red based on its population size. The visualization uses the Robinson projection to render the world map, and employs a color scale defined by `d3.scaleThreshold` with a sequential color scheme. The map is drawn using `d3.geoPath`, with country boundaries loaded from a GeoJSON file and population data from a CSV. An interactive tooltip appears on mouseover, showing the country name and its population.

DDIANJING FAN
87% match
Loading thumbnail…

Choropleth map

A choropleth map colors world countries by income group using an ordinal color scale with a spectral scheme. The visualization renders geographic boundaries via TopoJSON data and the d3.geoPath projection, with a legend displaying color categories. Interactive zooming is enabled through d3.zoom, and hovering highlights individual countries. Data comes from the world-atlas and visionscarto-world-atlas packages.

Jjrodg
86% match
Loading thumbnail…

Choropleth Map

A choropleth map colors countries by their income group using a categorical ordinal color scale, with hover effects highlighting individual nations. Built with D3 v5, it renders geographic boundaries as SVG paths via `d3.geoPath` and `geoNaturalEarth1`, and loads world geometry from the world-atlas TopoJSON dataset. A custom color legend displays the categories, while zooming is enabled through `d3.zoom`. Data is processed asynchronously with Promises, merging TSV metadata with TopoJSON features.

Ss-janibekova
86% match
Loading thumbnail…

Choropleth Map

A choropleth map colors countries by their income group using a categorical ordinal color scale, with hover effects highlighting individual nations. Built with D3 v5, it renders geographic boundaries as SVG paths via `d3.geoPath` and `geoNaturalEarth1`, and loads world geometry from the world-atlas TopoJSON dataset. A custom color legend displays the categories, while zooming is enabled through `d3.zoom`. Data is processed asynchronously with Promises, merging TSV metadata with TopoJSON features.

Ss-janibekova
86% match
Loading thumbnail…

Choropleth Map

A choropleth map colors countries by their income group using a categorical ordinal color scale, with hover effects highlighting individual nations. Built with D3 v5, it renders geographic boundaries as SVG paths via `d3.geoPath` and `geoNaturalEarth1`, and loads world geometry from the world-atlas TopoJSON dataset. A custom color legend displays the categories, while zooming is enabled through `d3.zoom`. Data is processed asynchronously with Promises, merging TSV metadata with TopoJSON features.

Ss-janibekova
86% match