The Margin Convention

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

This example demonstrates a horizontal bar chart of the top 10 most populous countries in 2020, using D3 scales to map population counts to bar widths and country names to vertical positions. The chart applies the margin convention, translating the SVG group by a fixed margin so the bars fit within the inner chart area. React state manages the fetched CSV data, loaded asynchronously via `d3.csv`, while `d3.scaleBand` and `d3.scaleLinear` handle the scales, and SVG `<rect>` elements render each bar.

Ddiska432

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 displays a horizontal bar chart of the top 10 most populous countries in 2020, drawing from UN population data loaded via D3’s `csv` utility. React renders an SVG with scaled rectangles, using `scaleBand` for country categories and `scaleLinear` for population values, all positioned within a fixed margin using the `transform` attribute. The code relies on D3 v5 and React’s `useEffect` and `useState` hooks, with the chart’s dimensions computed from explicit top, right, bottom, and left margins to define the inner plotting area.

DDusty

The Margin Convention

This example shows a horizontal bar chart of the ten most populous countries, using UN population data for 2020. The chart applies a standard margin convention using D3’s `scaleBand` for the categorical country names and `scaleLinear` for population counts, rendered as SVG rectangles inside a translated group. The visualization is built with React, which manages the loading state via `useState` and `useEffect`, while D3’s `csv` utility fetches and parses the data before it is sliced and mapped to bars.

TTroy Marchesseault

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 (2020 estimates). The code uses D3’s `csv` loader, `scaleBand`, and `scaleLinear` to position and size the bars within an inner plotting area defined by explicit margins, while React’s `useState` and `useEffect` manage data fetching and component state. All SVG elements are generated declaratively through React, with the root group translated by the margin values to align the chart inside the fixed 960×500 viewport.

Llefat92