Skip to main content
SimilarExport ZIP
100%

Circles on a map

✓ Published0🌍 Public
Ccornshoots
Last edited Mar 29, 2021
Created on Mar 21, 2021
Forked from Chloropleth Map

This map visualization displays the global population distribution for 2018 using circles sized by population count, placed at each country's geographic centroid over a natural Earth projection. The map uses `d3.geoPath` for rendering country boundaries and `d3.scaleSqrt` for circle sizing, with a legend showing population ranges. Users can zoom and pan using `d3.zoom`. Population data comes from a UN dataset (medium variant estimates), joined with TopoJSON world geometry via `d3.json` and `d3.csv`. A color legend marks missing data countries in red.

AI-generated description
MIT Licensed

Similar vizzes

Loading thumbnail…

Circles on a Map

This visualization shows global population estimates for 2018 as colored circles positioned at the geographic centroid of each country on a natural Earth projection. A size legend encodes population magnitudes, while a color legend maps a categorical scale, with countries lacking data highlighted in a different shade. The code uses d3.geoPath and d3.geoCentroid for map rendering, d3.scaleSqrt for circle sizing, and d3.scaleOrdinal with a spectral scheme for colors. Population data comes from a UN CSV dataset, joined to country geometries from a TopoJSON world atlas. Users can pan and zoom via d3.zoom, with hover tooltips showing region names and formatted population counts.

NNita
95% match
Loading thumbnail…

Circles on a Map

This visualization displays global population data for 2018, using a natural Earth projection with circles sized by population at each country’s centroid. Countries with missing data appear in light red, while mapped regions are gray and populating circles use a teal fill. The map supports zooming via d3.zoom, and the code employs d3.geoPath for rendering country boundaries, d3.scaleSqrt for circle sizing, and d3.scaleOrdinal with a spectral scheme for the color legend. Data comes from a CSV file joined to TopoJSON world geometries, with both size and color legends implemented as reusable D3 modules.

Ffbudwill
95% match
Loading thumbnail…

Circles on a Map

This visualization displays global population estimates for 2018 by placing semi-transparent blue circles at the geographic centroids of each country on a natural Earth projection. The map supports zooming and panning via d3.zoom, with a size legend showing population values scaled using d3.scaleSqrt. Data combines UN population CSV with TopoJSON world boundaries, processed using d3.csv, d3.json, and topojson.feature. The code uses d3.geoPath, d3.geoCentroid, and d3.geoNaturalEarth1, alongside SVG rendering to show the choropleth-like country fills and legend components.

CCarloGato
95% match
Loading thumbnail…

Circles on a Map

This visualization displays global population estimates for 2018 by placing semi-transparent blue circles at the geographic centroids of each country on a natural Earth projection. The map supports zooming and panning via d3.zoom, with a size legend showing population values scaled using d3.scaleSqrt. Data combines UN population CSV with TopoJSON world boundaries, processed using d3.csv, d3.json, and topojson.feature. The code uses d3.geoPath, d3.geoCentroid, and d3.geoNaturalEarth1, alongside SVG rendering to show the choropleth-like country fills and legend components.

CCarloGato
95% match
Loading thumbnail…

Circles on a Map

This interactive map visualizes global population by country in 2018, using circles whose area scales with population size. Users can pan, zoom, and hover over countries to see population details or a missing-data note. The visualization uses D3 v5, with `d3.geoPath` and the Natural Earth projection to render country outlines, while `d3.scaleSqrt` maps population to circle radii. Interactive zoom is handled via the `d3.zoom` module, and a custom size legend provides scale reference. Data comes from a UN population CSV merged with TopoJSON world atlas geometry.

0007ebey
95% match
Loading thumbnail…

Circles on a Map

This visualization displays global population by country in 2018, with circles sized proportionally to population counts overlaid on a natural Earth projection map. The map supports pan and zoom interactions, and hovering over countries reveals population data or missing-data indicators. Built with D3 v5, the example uses `d3.geoPath` for map rendering, `d3.geoNaturalEarth1` for projection, `d3.zoom` for interaction, and `d3.scaleSqrt` for circle sizing, while styling and legend components are defined in separate JavaScript modules. Population data comes from a UN estimates CSV, with country boundaries from a TopoJSON world atlas.

GGerryLivermore
94% match
Loading thumbnail…

Circles on a Map

This map visualization displays global population by country using semi-transparent circles sized proportionally to 2018 population data from the UN, with a square-root scale for area encoding. The code uses d3.geoNaturalEarth1 projection, d3.geoPath, and d3.geoCentroid to position circles at country centroids, while d3.zoom enables panning and zooming. Hovering reveals country names and population values via SVG title elements, and a custom size legend explains the circle scaling. Data sources include UN population CSV and TopoJSON world atlas geometry.

Jjesramyep1263
94% match
Loading thumbnail…

Circles on a Map

This visualization shows global population distribution for 2018 by placing semi-transparent circles at the centroid of each country on a natural Earth projection map, with circle area scaled to population. Users can pan and zoom via d3.zoom, and hovering over a country reveals its exact population in a tooltip. The visualization uses d3.geoPath to render country boundaries from TopoJSON and couples them with CSV data, while a custom size legend with d3.scaleSqrt and d3.format communicates the circle sizes.

Wwaqastufail
94% match