Circle on the Map

Circle on the Map3

This visualization displays population projection data on a world map over time, with animated circles representing values for each country from 2020 to 2030. The map is rendered using d3.geoNaturalEarth1 and d3.geoPath, while circle radii are scaled with d3.scaleSqrt. The animation cycles through decades sequentially, updating the displayed year and circle sizes via d3.transition. Data comes from CSV files with country coordinates and population estimates, and the visualization includes interactive zoom functionality through d3.zoom.

94% match

Circle on the Map

This interactive map visualizes projected population changes from 2020 through 2030, with circles sized by population using a square-root scale. The visualization animates growth by iterating through years, transitioning circle radii with `transition.delay` and `transition.duration`. It uses D3 v5 with `geoNaturalEarth1` projection, `geoPath`, and TopoJSON world data merged with UN population CSV data, offering zoom via `d3.zoom` and a legend showing population values.

93% match

Fork of Circle on the Map

A world map animates shifting population projections from 2020 through 2030, with circles sized by projected population using a square-root scale. Countries missing data appear in pink. The visualization uses d3.geoNaturalEarth1 for projection, d3.geoPath for country outlines, and d3.zoom for panning. Animated transitions update circle radii sequentially, while a size legend and color legend appear. Population data comes from a CSV file, merged with country geometries from TopoJSON via the topojson library.

93% match

Circles on a Map

This visualization displays population estimates by country for 2020 on a natural Earth projection map. Scaled circles positioned at each country’s centroid encode population magnitude, while a size legend and color legend provide reference. Users can pan and zoom via d3.zoom, and hovering over countries reveals tooltips with region names and formatted population values. The code uses d3.geoPath for map rendering, d3.scaleSqrt for circle sizing, and TopoJSON from the Visionscarto World Atlas, with data loaded from a CSV via d3.csv.

92% match

Circle on the Map3

This visualization animates population projections on a world map, displaying how the size of circles at country locations changes over time from 2020 onward. The map is rendered using D3 v5 with an SVG projection via `d3.geoNaturalEarth1` and `d3.geoPath`, while the circles use `d3.scaleSqrt` for sizing. A timestamped sequence of transitions animates the circles’ radii across years, driven by data from a CSV of population estimates. The map also supports zooming through D3’s `zoom` behavior, with hover tooltips highlighting country details.

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Circles on a Map

This map visualization depicts world population by country, with circle area scaled to the 2020 population figures. Users can pan and zoom across the interactive SVG, and hovering over a country highlights it while revealing a tooltip with the region name and population. The visualization is built with d3.v5, using geoNaturalEarth1, geoPath, and geoCentroid for the map projection, while loadAndProcessData merges CSV population data with TopoJSON world atlas shapes. A square-root scale controls circle size, and custom legends render the data encoding.

Circles on a Map

Circles on a Map

This visualization uses a natural Earth projection to display global population data for 2018, with each country represented by a circle whose area is proportional to its population. The map supports pan and zoom interactions, and hovering over a country reveals its population through a tooltip. Built with D3.js, it uses `d3.geoPath` for map rendering, `d3.scaleSqrt` for the size scaling, and custom legends to explain both the color scheme and circle sizes. Population data comes from a CSV file joined to a TopoJSON world atlas.

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