Project to Bounding Box

Project to Bounding Box

This example shows a single state selected from a GeoJSON collection and highlights it with an outline, while displaying the full set of U.S. state boundaries in gray. It centers the highlighted state within the viewport by using the Albers projection’s `d3.geo.albers()` and adjusting its scale and translation based on the bounding box computed via `path.bounds()`. The code loads TopoJSON data, converts it to GeoJSON with `topojson.feature`, and renders both the state mesh and outline as SVG paths using `d3.geo.path()`.

84% match

Albers Projection

This example displays a map of the United States using the Albers projection, with each state drawn as a filled gray polygon with white outlines. The visualization loads GeoJSON data from a remote `us.json` file via `d3.json`, which is then converted into SVG paths using `topojson.feature` and `d3.geo.path()`. The map is rendered as a single SVG path element within a 960×500 canvas, demonstrating a basic static choropleth without additional interactivity or styling layers.

76% match

Gist 08d3bc545278d6a3b2d22df875392612

This example visualizes U.S. state boundaries using D3 v4’s geoAlbersUsa projection and d3.geoPath to render geographic features from a local us-states.json file. The SVG canvas, sized 700x580, is appended to the body, and each state’s polygon is drawn as a path element with a default fill and stroke. The map is centered using a translate of [width/2, height/2], and the simple code demonstrates how to load and project GeoJSON data for display. No interactions or styling are applied, keeping the focus on the map layout.

JJoymangulJensen

76% match

Centered US Map

This map uses the geoAlbers projection to center the United States, showing state boundaries as black interior lines against a green landmass. The sphere is filled with sky blue, while graticules are rendered subtly in gray, though the graticule paths are defined but not explicitly drawn in the visible code. Data comes from US Atlas TopoJSON, converted using the `feature` and `mesh` methods from topojson. The visualization is built with React, rendering SVG paths generated by `d3.geoPath` and `d3.geoGraticule`.

RRohith arabati

76% match

Zoom to Bounding Box II

This example demonstrates smooth zooming and panning over a map of the United States using Albers equal-area projection. Users click individual states, triggering a 750-millisecond animated transition to a bounding box around that state, while the map remains freely navigable via mouse drag and wheel zoom. The visualization uses `d3.geo.albersUsa` for projection, `d3.behavior.zoom` for interactive and animated transformations, and `d3.geo.path` to render state boundaries and a mesh overlay from the US TopoJSON data file. Active states highlight in orange, and stroke widths adjust dynamically during zoom.

Albers Projection

This example displays a map of the United States using the Albers projection, a conic equal-area projection commonly used for national-scale choropleths. It renders the geographic boundaries as gray SVG paths with white strokes, loaded from a local `states.json` GeoJSON file. The code uses the D3 v3 library, specifically the `d3.geo.albers()` projection and `d3.geo.path()` to project and draw the feature collection.

Centered US Map

This example displays a centered map of the United States with state boundaries highlighted in blue over a green landmass, set against a graticule grid and a light blue spherical backdrop. Using React and D3 v5, the visualization loads US Atlas TopoJSON data and converts it to GeoJSON features via topojson’s `feature` and `mesh` functions. The map is rendered through SVG paths generated by `d3.geoPath` with a `geoAlbers` projection, while `geoGraticule` creates the background grid lines.

Yyuzhang21

Centered US Map

This visualization displays a map of the United States centered using the Albers equal-area projection. It shows the nation’s landmass with a colored fill, state boundaries as thin strokes, and a graticule sphere outline. Built with React and D3 v5, it loads US Atlas TopoJSON data via `d3.json` and uses `topojson.feature` and `topojson.mesh` to extract land and interior boundaries. The map is rendered as SVG paths generated by `d3.geoPath` with `geoAlbers`.

Aakhil kata