The Margin convention

The Margin Convention

This example demonstrates the margin convention in D3 by rendering a horizontal bar chart of the top 10 countries by 2020 population from UN data. The chart uses SVG rectangles positioned with `scaleBand` and `scaleLinear` scales, nested inside a translated `<g>` group to offset the visualization from the SVG edges. React hooks like `useState` and `useEffect` manage asynchronous data loading via `d3.csv`, while the margin object explicitly defines padding for the plot area.

SSarah Elkeurti

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 the margin convention in D3, displaying a horizontal bar chart of population data for the top 10 countries from the UN Population 2019 dataset. The visualization uses React’s useState and useEffect hooks to asynchronously load CSV data via d3.csv, then renders SVG rectangles scaled with d3.scaleBand and d3.scaleLinear. A margin object defines the inner chart area, with a translated `<g>` element positioning the bars within the SVG canvas.

BbeauMarko

The Margin convention

This example demonstrates how D3’s margin convention works by rendering a horizontal bar chart of the top ten countries by 2020 population estimates from the UN World Population Prospects 2019 dataset. The chart uses a React component with `d3.csv` to load data, `scaleBand` for the categorical y-axis, and `scaleLinear` for the x-axis. An outer SVG with fixed width and height contains a translated group element (`g`) that positions the bars inside the margin-defined inner area, which is computed by subtracting the top, right, bottom, and left margin values from the outer dimensions.

DDaniel Zsido

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

The Margin Convention

This example demonstrates the margin convention in D3 by rendering a horizontal bar chart of UN population data for 2019. The chart displays the top 10 countries by population using SVG rectangles, with scales created via `d3.scaleBand` and `d3.scaleLinear`. A margin object defines the inner plotting area dimensions, and a `<g>` element translates the chart into place. Data is loaded asynchronously from a CSV using `d3.csv`, and the visualization is built with React components and D3 v7.

SSong Tao Chen

The Margin Convention

This example demonstrates the margin convention in D3 by rendering a horizontal bar chart of the top 10 most populous countries using 2020 UN population data loaded via `d3.csv`. The chart uses `d3.scaleBand` and `d3.scaleLinear` to map country names and population values to SVG `rect` elements within a translated `<g>` group, with explicit margins separating the inner plot area from the SVG edges. React state and the `useEffect` hook manage asynchronous data loading, while the entire visualization is rendered as SVG inside a React component.

Ccynichole

Margin Convention

This example demonstrates the margin convention for D3 visualizations by rendering a horizontal bar chart of United Nations population data. The chart displays the top 10 countries by 2020 population, with bars scaled linearly along the x-axis and categorically arranged along the y-axis. Using React hooks to manage state, the code loads CSV data with `d3.csv` and creates scales with `scaleBand` and `scaleLinear`. The SVG output groups all rectangles inside a translated `<g>` element, applying the specified margins to position the chart within the 960×500 viewport.

WWilliam Couturiaux