A9- proportional symbols map

100%

A9- proportional symbols map

✓ Published0🌍 Public

Last edited Apr 2, 2024

Created on Apr 2, 2024

This example presents a proportional symbols map using React and D3, where the size of each circular marker corresponds to a data value. The visualization leverages a geographic projection to position symbols correctly over a map of a region, with an interactive tooltip displaying the underlying data for each point. The code uses `d3.geoPath` for rendering the map’s topography from GeoJSON data and `d3.scaleSqrt` to map values to circle radii. Hover interactions drive a tooltip component, while the map itself is rendered as SVG paths within the React component tree.

AI-generated description

A bare minimum HTML page demonstrating use of CSS and JavaScript.

Similar vizzes

Loading thumbnail…

A9: D3 Proportional Symbol Map

This proportional symbol map shows the relative cost of living across US states using colored circles sized by each state’s cost index, with tooltips on hover. The visualization loads US state boundaries from a TopoJSON file via `d3.json` and `topojson.feature`, then plots the CSV data points using `d3.geoAlbersUsa` and `d3.geoPath`. Circle radius and fill color are scaled with `d3.scaleSqrt` and `d3.scaleLinear`, respectively. It uses D3 v7 with SVG rendering, a color legend, and animated opacity and stroke transitions for interactive highlighting.

Rronnieferrufino4908@gmail.com

75% match

Loading thumbnail…

A9 - Proportional symbols map

This map of the United States visualizes transportation costs by state using proportional green and grey circles, with the ten most expensive states highlighted in brown. A tooltip displays the exact cost when hovering over a circle. The chart is built with D3 v3 and topojson, using an SVG path with `path.pointRadius` to size symbols by a square-root scale. A hand-coded legend, an animated tooltip via `div.transition`, and state boundary paths rendered from TopoJSON complete the interactive display.

DDuc Pham

75% match

Loading thumbnail…

Proportional Symbols Map in D3

A proportional symbols map visualizes transportation cost indices across U.S. states using D3.js and the topojson library. Each state is rendered as a gray polygon with a circular symbol whose size corresponds to its cost value. The visualization employs an Albers equal-area projection via `d3.geoAlbersUsa` and `d3.geoPath`, with state centroids hardcoded to position the proportional circles. Interactive tooltips appear on hover, while symbols animate on load. The map is drawn in SVG with data fetched from a CSV hosted on GitHub.

Kkfhujosefsson@dons.usfca.edu

75% match

Loading thumbnail…

D3 - Proportional Symbols

A proportional symbol map displays the relative housing costs across U.S. states, with circle size scaled by cost and red highlighting the top ten most expensive states. The visualization uses D3 v3 with `d3.geo.path` to render state boundaries from TopoJSON, while centroid points are drawn as scaled circles using `d3.scale.sqrt`. Hovering reveals a tooltip with state name and cost. The code loads external JSON and CSV data via `queue()`, and renders in SVG with animated transitions for the tooltip. The legend shows circle radii corresponding to cost values.

CChandana Srinivas

75% match

Loading thumbnail…

A9 Proportional Symbols Map in D3

This visualization combines a U.S. state boundary map with red, green, and blue proportional circles to depict cost-of-living indices across states. Circle sizes scale linearly with each state's cost index using `d3.scaleLinear`, while positions are projected with `d3.geoAlbersUsa` and `d3.geoPath`. Data from `expstates.csv` is rendered in an SVG, and the ten highest-cost states are highlighted in green via a tooltip showing state names and indices.

EEric Yao

74% match

Loading thumbnail…

A9 - Proportional Symbols Map in D3

This D3.js proportional symbols map visualizes the cost of living index across US states. Gray states are drawn with the `d3.geoAlbersUsa` projection and `d3.geoPath`, while semi-transparent red circles, sized by a square-root scale, are placed at state coordinates derived from an external latitude/longitude source. A legend displays four bubble sizes with corresponding index values. Hovering over a circle reveals a tooltip with the state name and cost index. Data is loaded via `d3.json` and `d3.csv`.

RRiya Mathur

74% match

Loading thumbnail…

A9 - Geospatial visualization in D3

This gallery entry presents three distinct D3.js geospatial visualizations created by Duc Pham for a CS 360 assignment. The first is a choropleth map, followed by a proportional symbols map, and finally a world choropleth map that includes tooltips for all three parts and highlights the top 10 countries in part two. The visualizations use the D3 library to render geographic data, with interactive elements such as tooltips and highlighting. The code is structured within an HTML page using CSS and JavaScript, and each visualization is linked to its own VizHub instance for embedding and viewing.

DDuc Pham

74% match

Loading thumbnail…

A9-Proportional symbols

A proportional symbol map shows the average grocery cost per state across the U.S., with circle area scaled to cost and states in the top ten for cost highlighted in red. Built with D3 v3, it uses the `d3.geo` Albers projection and `topojson` for the state outlines, while `d3.scale.sqrt` maps cost values to circle radii. Hovering a circle reveals a tooltip with the state name and cost, and the underlying data is loaded from a CSV file.

Jjrcuster@dons.usfca.edu

73% match