bhargav83

@bhargav83·13 public vizzes

Untitled

A dashboard of linked COVID-19 visualizations shows global cases via a Leaflet map, interactive line charts of pandemic metrics, and scatter plots. Users can select countries on the map to filter data, while brushable axes and k-means clustering reveal relationships like GDP per capita versus case rates. Built with d3.v7 and SVG animations, the dashboard loads data from a CSV and GeoJSON files.

Mar 14, 2023

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trying pie Covid-19 confirmed cases

This interactive visualization shows global COVID-19 confirmed cases per million people using a geographic map with colored regions and proportional circle markers overlaid on OpenStreetMap tiles. The map uses D3 v7 to process COVID-19 data from the v3 API and world GeoJSON from the World Atlas, applying a sequential color scale with the YlOrRd interpolator to represent case intensity. A leaflet legend displays quantile-based color ranges, while hover interactions reveal detailed country statistics in an information control. The visualization combines Leaflet's slippy map functionality with D3's data manipulation and color scaling capabilities.

Mar 14, 2023

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COVID-19 DASHBOARD

This interactive dashboard visualizes COVID-19 trends with multiple linked charts, including a world map showing total cases, line charts for new cases by country, and an income-bracket comparison. It also includes a vaccination chart and a navigator for exploring case timelines. Built with React and D3 v7, the visualization uses `d3.geoPath` with TopoJSON for map rendering, `d3.scaleTime` and `d3.scaleLinear` for axes, and SVG with animations for interactive updates. Data is loaded from the Our World in Data COVID-19 CSV files, with country coordinates from a custom JSON file.

Mar 13, 2023

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World Map with COVID-19 Data

This visualization presents a choropleth world map color-coded by total COVID-19 cases, with proportional pie charts overlaid on each country to break down cases versus deaths. Built with React and D3 v6, it uses `d3.geoMercator` for projection, `d3.geoPath` to render country boundaries from GeoJSON, and `d3.scaleQuantize` for the color gradient. Hovering a country reveals a tooltip with its name, while each pie chart is generated with `d3.arc` and `d3.pie` with radii scaled by `d3.scaleSqrt`. Data comes from the Our World in Data COVID-19 dataset.

Mar 13, 2023

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Fork of Covid-19 confirmed cases

This visualization displays global COVID-19 confirmed cases and deaths on a world map, using a spectral color scale to represent case counts per country. Built with React and rendered as SVG, it employs d3.geoNaturalEarth1 and d3.geoPath to project geographic boundaries from world-atlas TopoJSON, while loading case data from a TSV file. A custom color legend with circles and text labels clarifies the scale, and hovering over a country highlights it in red and shows a tooltip with its name, case count, and death toll. The map supports zooming through d3.zoom, and the color scale uses d3.scaleOrdinal with d3.schemeSpectral.

Mar 13, 2023

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Untitled

This visualization displays COVID-19 total cases by location using a bar chart rendered with SVG. It loads data from a CSV file via d3.csv, then uses d3.scaleBand for the categorical x-axis and d3.scaleLinear for the y-axis, with a fixed domain of 0 to 13. The bars are drawn as rectangles with a teal fill, and axis labels are rotated for readability. The chart is built with d3.v4 within a React framework, though the core logic is plain D3 JavaScript.

Mar 12, 2023

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Massachusetts Daily COVIations - Interactive Barchart

This interactive bar chart visualizes daily COVID-19 vaccination doses administered in Massachusetts from April to September 2021. Each bar’s height is proportional to the number of doses given that day, using a d3.scaleLinear mapping. Hovering over a bar dims the rest, and a tooltip displays the exact date and dose count. The visualization uses D3 v5's selection API and SVG rendering, pulling data from a public US vaccination dataset.

Mar 12, 2023

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covid vaccines

This visualization displays total COVID-19 vaccinations by location, using a bar chart where each bar is colored by vaccine manufacturer. The chart ranks locations from highest to lowest vaccination totals, with tooltips revealing precise values on hover. Built with the Vega-Lite API on top of D3.js v5, it loads CSV data from a GitHub gist and renders as an SVG canvas. The code customizes axis tick colors and font styles through a config object to improve readability.

Mar 12, 2023

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Cheap Tricks for Interaction

This example shows an interactive world map rendered in SVG, where each country appears in light green with a black outline and displays its name via a tooltip on hover. Users can pan and zoom the map using mouse interactions, which transforms the entire map group. The visualization uses D3 v5 with `d3.geoNaturalEarth1` for projection, `d3.geoPath` for drawing country boundaries, and `d3.zoom` for interaction. Country geometries come from the world-atlas TopoJSON dataset, with country names loaded from a matching TSV file, while CSS hover effects turn countries red under the cursor.

Mar 10, 2023

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D3.js Tutorial

This example shows a D3.js bar chart that displays the scores of seven individuals, sorted in descending order. The chart uses a band scale for the x-axis and a linear scale for the y-axis, with bars rendered as SVG rectangles that highlight on hover. The code calls on d3.scaleBand, d3.scaleLinear, d3.axisLeft, and d3.axisBottom to construct the axes and layout, while data is sorted with d3.descending before binding. The visualization is embedded in a minimal HTML page with D3 v5 loaded from a CDN.

Feb 19, 2023

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D3.js Tutorial

This example shows a bar chart of test scores for seven people, sorted from highest to lowest score, with royal blue bars, labeled axes, and hover opacity feedback on each bar. The visualization uses D3.js v5 with an SVG rendering approach, creating scales via `d3.scaleBand` for the x-axis and `d3.scaleLinear` for the y-axis. It appends rectangles bound to an array of name-score objects, calls `d3.axisBottom` and `d3.axisLeft` for the axes, and sorts the data with `d3.descending`. The chart is embedded in a basic HTML page with a centered title.

Feb 19, 2023

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a cool design

This piece is a static SVG composition of dark, heavy black lines on a pale background, framed by deep red and black border bands. The line work suggests a dense, abstract structure resembling stylized branches, roots, or a circuit diagram, with many overlapping strokes of varying thickness and orientation. The design relies on the `mix-blend-mode: darken` CSS property over layered rectangles to create subtle tonal variations. The SVG is hand-coded directly in HTML, using basic shapes like `line` and `path` elements without any JavaScript or external libraries.

Feb 12, 2023

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SVG Fundamentals

This example demonstrates fundamental SVG shapes and styling within a React-based HTML page. It shows how circles, rectangles, lines, and paths are rendered with SVG attributes, including fill colors, stroke widths, and hover transitions. CSS rules apply a red fill with a black stroke to rectangles, and a hover effect transitions the fill to orange while expanding the stroke width over 2000ms. The visualization uses inline SVG markup directly in the HTML, with no external data source, showcasing basic vector graphics techniques.

Jan 31, 2023