The Margin Convention

The Margin Convention

This example demonstrates a simple horizontal bar chart of the top ten countries by 2020 population, using data loaded from a CSV file. The chart applies the margin convention, reserving space around the plot area with a 20-pixel margin on all sides. The visualization uses React state to manage the data and renders SVG rectangles, with scales defined by `d3.scaleBand` for the y-axis and `d3.scaleLinear` for the x-axis. Population values are parsed from the CSV using D3’s `csv` utility.

JJoeleen Kado

The Margin Convention

A horizontal bar chart displays the top ten countries by 2020 population, parsed from a CSV of UN population data. React state loads the data via `d3.csv`, while `d3.scaleLinear` and `d3.scaleBand` map population values and country names to SVG rectangles within a standard margin layout.

Kkosakase

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 displays the top 10 countries by 2020 population as horizontal bars within a fixed margin, demonstrating the SVG margin convention. The bars are scaled using `scaleBand` for the y-axis and `scaleLinear` for the x-axis, with React managing state and D3's `csv` loading the UN population data. A margin object defines the inner plotting area, and the SVG is translated accordingly to position the chart.

RRandyElkins

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

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

Margin Convention (Bar Chart)

This example shows a horizontal bar chart of the top 10 countries by projected 2020 population, using data from the UN Population 2019 dataset loaded via `d3.csv`. The visualization applies the margin convention by defining an SVG container with a fixed width and height, then translating a group element by the left and top margins. Bars are rendered as SVG `<rect>` elements, with positions and widths computed using `d3.scaleBand` for the categorical y-axis and `d3.scaleLinear` for the quantitative x-axis. React manages the component state and lifecycle, fetching the data with `useEffect` and rendering declaratively.

Rroc286

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