Margin Convention

Margin Convention

This example demonstrates the margin convention for bar charts by displaying the top 10 countries by population in 2020. The chart uses React to render SVG rectangles, with D3’s `scaleBand` for the y-axis countries and `scaleLinear` for the x-axis population values. Data is loaded via `d3.csv` from a UN population dataset. A `<g>` element applies the margin translation, showing how inner dimensions are computed from the SVG width, height, and margin object.

SSai Phaltankar

The Margin Convention

This example displays a bar chart of the top ten countries by 2020 population, using a horizontal layout where each bar’s length is proportional to the population value. The visualization is built with React, using D3 utilities for data loading and scaling: `d3.csv` fetches the UN Population dataset, while `d3.scaleBand` and `d3.scaleLinear` map countries and populations to SVG rectangles. The SVG output is rendered inside a React component, with margins applied via a translation transform.

Ffjvoris

Margin Convention

This example demonstrates the D3 margin convention by rendering a horizontal bar chart of the top 10 most populous countries in 2020, using UN population data loaded via `d3.csv`. The chart employs `d3.scaleBand` for country positioning and `d3.scaleLinear` for population values, with an SVG `<g>` element translated by the margin object to inset the visualization. React manages the state and lifecycle, fetching and filtering the data before mapping it to styled `<rect>` elements inside the SVG.

KKolezhannochka

The Margin Convention

This example visualizes the top 10 most populous countries in 2020 as a horizontal bar chart using React and D3. The data, loaded via `d3.csv` from a UN population dataset, is rendered as SVG rectangles whose widths encode population values. A `scaleBand` positions countries along the y-axis, while a `scaleLinear` maps population to pixel widths. The chart demonstrates the margin convention by offsetting the render group with `transform` and calculating `innerHeight` and `innerWidth` from fixed margins.

OOleg Zhernovoy

The Margin Convention

This example displays the top ten countries from a UN population dataset as a horizontal bar chart. The bars are rendered as SVG rectangles, with their lengths encoding the 2020 population figures. The chart uses a margin convention to position the plotting area within the SVG canvas. The code employs d3’s `scaleBand` for the categorical y-axis, `scaleLinear` for the quantitative x-axis, and `csv` for data loading, while React manages the component’s state and renders the SVG output.

Vvangenned

The Margin Convention

This example demonstrates the “margin convention” for bar charts, displaying the top 10 most populous countries in 2020. The visualization uses React to manage state and render SVG rectangles, while D3.js v6 handles data loading via `d3.csv` and scales for positioning. The chart applies explicit top, right, bottom, and left margins to define an inner plotting area, translating the SVG group accordingly. The data comes from a UN population CSV file, and the y-axis uses `scaleBand` for country labels, while `xScale` is a linear scale for population values.

Fforcox43

The Margin Convention

This example demonstrates the margin convention in D3 by rendering a horizontal bar chart of the top 10 most populous countries from a UN population dataset. The chart uses a React component with D3 scales (`scaleBand`, `scaleLinear`) to position and size SVG rectangles within a translated group element, explicitly reserving space via a margin object. The x-axis encodes population in 2020, while the y-axis displays country names. The code applies D3's `csv` loading and React's `useState` and `useEffect` hooks for data fetching.

KKevin McMorrow

The Margin Convention - Bar Charts

This example demonstrates the margin convention for bar charts by rendering the top 10 most populous countries in 2020 using React and D3. It loads CSV data from the UN Population dataset via `d3.csv`, then uses `scaleBand` and `scaleLinear` to map countries and population values to SVG rectangles within a translated group element. The visualization appears as a horizontal bar chart with axes implied by the scales, while the margin object defines the inner plotting area. React hooks manage asynchronous data loading and state updates.

CChris Briggs