Google Maps + D3

100%

Google Maps + D3

✓ Published0🌍 Public

Last edited Feb 8, 2016

Created on Apr 2, 2011

This example overlays a custom D3 visualization on an interactive Google Map, plotting California weather station data as brown circles with labeled markers. The map displays terrain tiles from the Google Maps API, while the overlay is drawn using D3’s `d3.json` to load station coordinates and attributes. Each marker is rendered as a separate inline SVG element, positioned via the Google Maps projection’s `fromLatLngToDivPixel` method when the overlay is added. The code combines the Google Maps JavaScript API with D3’s selection and data-binding capabilities to synchronize the dynamic overlay with the map’s pan and zoom.

AI-generated description

gpl-3.0 Licensed

Similar vizzes

Loading thumbnail…

Polymaps + D3, Part 2

This example combines Polymaps and D3 to display weather station locations across California on a tiled base map. The map uses CloudMade image tiles with a compass control, while D3 renders SVG circles and labels for each station from a JSON file. As the map pans or zooms, the `map.on("move")` event updates the marker transforms using `map.locationPoint` to project geographic coordinates into screen positions. The stations are grouped in an SVG `<g>` element inserted beneath the compass layer, with circles styled with a brown semi-transparent fill.

Mmbostock

82% match

Loading thumbnail…

d3.geo.tiler

This example demonstrates an interactive map of weather stations in California using tiled image layers from CloudMade and custom point overlays. The `d3.geo.tiler` API organizes station locations from stations.json into a quadtree structure, enabling efficient data retrieval per map tile. The Polymaps library handles map navigation, while D3.js manages the tile-specific SVG rendering of station markers and labels. The visualization showcases the integration of D3's geographic projections with Polymaps' tile-based mapping system for scalable point data visualization.

Mmbostock

81% match

Loading thumbnail…

Polymaps + D3

This example combines Polymaps and D3 to render an interactive map with a custom data layer. The map displays image tiles from CloudMade as a base layer, and overlays circles representing weather station locations from a local `stations.json` file. Each station is positioned using geographic coordinates projected through a `locationPoint` function within the Polymaps layer, with circle and text elements added via D3's selection API. The map includes interactive pan and zoom controls and a compass overlay.

Mmbostock

79% match

Loading thumbnail…

Google Map + D3.js

This example combines Google Maps with D3.js to display bars and lounges around a Los Angeles hotel, using data from the Yelp API. A custom Google Maps overlay projects each business's latitude and longitude onto the map, rendering them as styled SVG markers with numbered labels. The map itself uses custom styling to alter road, landscape, and transit appearance, while the markers are drawn as red circles with white strokes. The code relies on the Google Maps JavaScript API, D3 v3, and jQuery for data handling, with the input data stored in a query.json file.

LLucaZampieri

77% match

Loading thumbnail…

Google Map + D3 Generated Layers

This example demonstrates a Google Map with multiple D3-generated layers overlaid, including choropleth countries, GeoHash grid cells, a heat map, a graph, and a graticule. The GMapLayered widget composites these layers, with countries colored by weight using a palette and GeoHash data shown as colored tiles. The visualization also renders a heat map and a graph of weighted points, all anchored to geographic coordinates. The code uses the hpcc-systems Visualization library’s map components to manage layer rendering and interaction.

GGordonSmith

76% match

Loading thumbnail…

D3 + Leaflet

This example combines D3.js and Leaflet to create an interactive map of U.S. states with a hover effect. It uses a Leaflet tile layer from OpenStreetMap as the base, with D3 rendering state boundaries as SVG paths overlaid on the map. The code loads GeoJSON data from a gist and projects it using a custom `d3.geo.transform` that converts coordinates to Leaflet’s layer points. The `d3.geo.path` draws the states, and hover fills them brown. The map’s `viewreset` event triggers a reset function to reposition and rescale the SVG overlay.

JJn1532

74% match

Loading thumbnail…

D3 + leaflet + GForm

This example combines D3.js, Leaflet, and the Google Maps Geocoding API to visualize geocoded data from a Google Form spreadsheet on an interactive map. Circles are drawn on a Leaflet map using D3, with their positions updated based on the map view. The circles' fill colors correspond to categories in the data, and hovering over a circle triggers a smooth elastic transition that enlarges it, while clicking displays the venue's name, formatted address, and timestamp in an HTML tooltip panel. The map and circles animate in response to panning and zooming, and the data is loaded dynamically via Tabletop from a public Google Sheet.

FFedericopvs

74% match

Loading thumbnail…

Let's make a map with D3.js!

This example demonstrates how to build a map visualization using D3.js, displaying geographic features as green polygons with black outlines on a blue background. It loads GeoJSON data from a remote URL and renders it as SVG paths using the `geoPath` generator with the `geoAiryRaw` projection from d3-geo-projection. The code relies on `d3.json` for data loading and topojson’s `feature` conversion, with all styling defined in external CSS.

Cchaimmaeee

73% match