Country Map by using D3.js

USA Country Map

This example displays a choropleth-style map of the United States, showing state boundaries and land areas in light green with black interior borders. It uses React to render an SVG, with D3's `geoPath` and the `geoAlbersUsaTerritories` projection from the `geo-albers-usa-territories` library. TopoJSON data is loaded from a remote URL, and the `feature` and `mesh` APIs extract land and interior boundaries for drawing. The visualization focuses on geographic shape rather than additional quantitative data.

KKiran3295

Country Map of USA

This example displays a choropleth-style map of the United States, with each state filled in red and state boundaries drawn as black lines, using an SVG rendering. The map relies on D3’s `geoPath` and the `geoAlbersUsaTerritories` projection to render geographic features from TopoJSON data loaded via `topojson.feature` and `topojson.mesh`. React manages the component state through the `useData` hook, while CSS hover effects change a state’s fill color to blue. The data source is the `us-atlas@3.0.0` states-10m.json file.

SSRI RAM REDDY KOTERU

Country Map

This example visualizes a map of the United States, rendering individual state boundaries as green paths with dark strokes on a light blue SVG canvas. It uses the D3 v4 library with `d3.geoPath` and the `d3.geoAlbersUsa` projection to draw the map, while `topojson-client` converts TopoJSON data from the us-atlas dataset into GeoJSON features. The SVG is styled with a custom background color and positioned within a React-free HTML page, with margins and transform attributes controlling the layout.

Ssudeepmamidi

country map

This visualization displays a choropleth map of the United States, coloring each state in red with thin black internal borders. The map is rendered using React and D3 v5, with geographic shapes generated through `d3.geoAlbers` projection and `d3.geoPath`. State boundaries come from the US Atlas TopoJSON dataset, processed via `topojson.feature` and `topojson.mesh`. The SVG paths change to sky blue on hover using CSS, providing simple interactivity.

SSai Kaushik

Country Map

This visualization displays the 50 U.S. states as an interactive choropleth map, rendered in SVG within a React framework. It uses d3.geoPath with the geoAlbersUsaTerritories projection to draw state boundaries, with state fills in steelblue that turn white on hover. Geographic data comes from a TopoJSON file loaded via d3.json, and borders are derived using TopoJSON’s feature() and mesh() functions.

MmNamratha25

USA Country Map

This example renders a choropleth-style USA map using SVG, showing state boundaries and filled land areas in orange. It uses D3’s `geoPath` and the `geo-albers-usa-territories` projection, with React managing the component structure. TopoJSON data is loaded via `d3.json`, and state outlines are drawn using `feature` and `mesh` from the `topojson` library. The map highlights territorial inclusion through the custom projection, while the `styles.css` defines the land fill and interior stroke.

KKiran3295

Country map

This example displays a map of the United States with state boundaries rendered as SVG paths. Using D3’s `geoPath` and the `geoAlbersUsaTerritories` projection, it draws land areas in burlywood and state interior borders in teal. Geographic data comes from the `us-atlas` TopoJSON file, processed with `feature` and `mesh` from TopoJSON. The React component structure uses hooks (`useState`, `useEffect`) via `useData` to load and pass the map data to the `Marks` component.

SSaiSree0122

country map

This example displays a map of the United States with state boundaries, rendered as SVG paths using D3’s `geoAlbers` projection and `geoPath`. It shows land areas in blue, a graticule sphere in purple, and state interiors highlighted with yellow strokes. The map loads US Atlas TopoJSON data from jsdelivr, processes it with `topojson.feature` and `topojson.mesh`, and is built within a React component using the `geoGraticule` API to draw the graticule lines.

PPavaniMangugari