The margin convention

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 demonstrates the margin convention for D3 bar charts by displaying the top 10 countries by 2020 population from a UN dataset. The React component loads CSV data via d3.csv, then uses d3.scaleLinear and d3.scaleBand to map population values to bar widths and country names to vertical positions. An SVG group element translates the chart area by the specified margins, while React state and useEffect manage the asynchronous data loading and re-rendering. The chart shows horizontal bars within a fixed 960×500 viewport, with calculated inner dimensions accounting for the margin object.

Kkragovic

The Margin Convention

This example demonstrates the D3 margin convention by rendering a horizontal bar chart of the top 10 countries by 2020 population, with a 50-pixel gutter on each side of the SVG canvas. The React app loads data from a CSV file using d3.csv, then uses scaleBand for the categorical y-axis and scaleLinear for the quantitative x-axis. Bars are drawn as SVG rectangles inside a translated group element.

MMaciek Sitkowski

The margin convention

This example demonstrates a bar chart of the top ten countries by 2020 population, highlighting the margin convention by grouping all marks within a translated `<g>` element. The code uses React hooks (`useState`, `useEffect`) to load and parse CSV data via `d3.csv`, then applies `scaleBand` and `scaleLinear` to position rectangles. The SVG rendering relies on `d3.max` for domain scaling, while the inner dimensions are calculated from predefined margins, ensuring consistent spacing around the plot area.

FFulvio Vigilante

The Margin Convention

This example presents a basic bar chart using a horizontal layout, displaying the top ten countries by population for 2020. The bars are drawn as SVG rectangles, with their lengths proportional to each country's population value. The chart's position within the viewport is controlled by a fixed margin on all sides, demonstrating the standard convention of reserving space for axes and labels. The code loads data from a CSV file using D3's `csv` utility, then uses D3's `scaleBand` for the categorical country axis and `scaleLinear` for the quantitative population axis. React manages the rendering of the SVG elements, while D3 handles the data loading and scaling.

Aalexandermodell

The Margin Convention

This example shows a horizontal bar chart of the top 10 countries by population in 2020, loaded from a CSV file. The chart demonstrates the margin convention by offsetting a group of rectangles using an SVG transform. React state manages the asynchronous data loading with `d3.csv`, while the scales `scaleBand` and `scaleLinear` map country names and population counts to the inner chart dimensions. The bars are rendered as SVG `rect` elements within React’s declarative JSX structure.

KK3zter

the margin convention

This example shows a horizontal bar chart of the top 10 countries by projected 2020 population, loaded as CSV via D3’s `csv` utility. It demonstrates the margin convention by rendering an SVG with a left offset of 200 pixels, using `scaleBand` for the y-axis and `scaleLinear` for the x-axis, with gridlines from `xScale.ticks()`. React manages the state and renders each `<rect>`, `<line>`, and `<text>` element, while D3 provides the data parsing and scales.

Nnncis

The Margin Convention

This example shows a horizontal bar chart displaying the top ten countries by projected 2020 population, using UN population data loaded as CSV. The chart applies the margin convention, reserving space around the plot area through a margin object and translating the SVG group accordingly. React manages the component state and renders SVG rectangles, while D3 utilities handle data loading, scales, and layout. The visualization uses `scaleBand` for the y-axis and `scaleLinear` for the x-axis, with `csv` fetching the remote dataset.

Wwindwaver