i202081 (@i202081), VizHub

Multiline chart

This multiline chart displays profit trends across regions over time, with each line representing a region and colored via a categorical scale. Built with D3 v5, the visualization uses `d3.nest` to group data by region, `d3.line` with `d3.curveBasis` for smooth paths, and custom axis and legend components. The data, sourced from Data Canvas - Sense Your City, is loaded from a CSV and rendered as SVG.

May 31, 2020

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Learn D3.js

This example shows a simple bar chart built with D3.js v4, where each bar’s height corresponds to a value from a hardcoded JavaScript array of nine numbers. The chart is rendered as SVG inside an HTML page, with a title and a dedicated `<svg>` element. The code uses `d3.select` to set the SVG dimensions, `selectAll` with `data` and `enter` to create rectangles, and `attr` to position each bar via a `translate` transform based on its index. The bars are drawn from the bottom, using the SVG height minus the data value for the y-coordinate.

Mar 31, 2020

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Shapes with SVG and CSS

This example demonstrates a basic SVG canvas with a solid red background, showcasing how CSS can style SVG elements. The code uses D3 v5 to select the SVG element and apply the background color directly via the `style` method. It also defines CSS rules for a `.lines` class, which sets stroke properties and uses `stroke-linejoin: round` for paths. The visualization is minimal, emphasizing the interplay between D3’s selection API and external stylesheets in a React framework context.

Mar 26, 2020

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Shapes with SVG and CSS

This example demonstrates how SVG shapes can be styled using CSS within a D3.js visualization. It renders a single, empty SVG element with a fixed width and height, whose background color is set to red via D3’s selection and style method. The page also applies global CSS rules to remove margins and hide scrollbars, ensuring the SVG fills the viewport without distraction. The code relies on D3 v5 for DOM selection and styling, while the overall structure uses standard HTML and CSS.

Mar 26, 2020

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Shapes with SVG and CSS

This example demonstrates basic geometric shapes drawn with SVG, including circles, rectangles, lines, and a path, styled through CSS classes. The shapes are organized using SVG’s transform attribute for scaling and translation, while the CSS defines stroke properties and line joins for the line and path elements. The code uses raw SVG markup within an HTML page, with styles applied via a linked stylesheet. Shapes are positioned across a 960×500 canvas, with some elements inheriting fill colors from parent groups and others specifying fill attributes directly.

Mar 26, 2020

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Shapes with SVG and CSS

This example demonstrates basic geometric shapes drawn with SVG, including circles, rectangles, lines, and a path, styled through CSS classes. The shapes are organized using SVG’s transform attribute for scaling and translation, while the CSS defines stroke properties and line joins for the line and path elements. The code uses raw SVG markup within an HTML page, with styles applied via a linked stylesheet. Shapes are positioned across a 960×500 canvas, with some elements inheriting fill colors from parent groups and others specifying fill attributes directly.

Mar 26, 2020

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Let's make a face with d3.js!

This example demonstrates how to construct a stylized face using SVG primitives and D3.js. It shows a simple cartoon-like face composed of geometric shapes, including eyes, a nose, and a mouth, all positioned within an SVG canvas. The code leverages D3 selections to append and manipulate SVG elements directly, with styling handled by CSS. The face is rendered statically without animation or interaction, relying on D3 v5’s core selection and data-join methods to build the visual structure from scratch.

Mar 24, 2020