Color and Size Legends

Color and Size Legends

This example demonstrates how to create custom legends for both ordinal color scales and continuous size scales in D3 v5. It shows a color legend with four fruit categories (apple, lemon, lime, orange) rendered as colored circles, and a separate size legend with scaled circles representing values from 0 to 10. The code builds reusable legend components using D3’s `scaleOrdinal`, `scaleSqrt`, and `selection.call()`, rendering everything as SVG elements with styled fonts and circle strokes defined in CSS.

JJustine Giaky Huynh

Color and Size Legends

This example demonstrates how to create custom legends for both ordinal color scales and quantitative size scales in D3 v5. The color legend displays four fruit categories with distinct colored circles, while the size legend uses a sqrt scale to show proportional circle radii for numeric tick values. The code exports reusable legend functions that use D3’s selection joins, `scaleOrdinal`, `scaleSqrt`, and generated SVG groups with circles and text labels.

KKevinw97

Color and Size Legends

This example demonstrates how to create separate legends for ordinal color scales and quantitative size scales in D3 v5. The color legend uses a `scaleOrdinal` with fruit names mapped to distinct colors, while the size legend uses `scaleSqrt` to map numeric values to circle radii. Both legends are rendered as SVG groups using custom reusable functions that bind data to enter/merge/exit selections, positioning circles and text labels with transform attributes and spacing offsets.

MMounikaBeerelly

Color and size legends

This example demonstrates how to construct reusable legends for categorical color scales in D3 v5. A color legend maps fruit names to distinct colors using `scaleOrdinal`, rendering circles with corresponding fills and text labels. The legend is implemented as a custom function that leverages D3’s data-join pattern with `selection.merge` to handle updates efficiently. The SVG output positions each legend item vertically with configurable spacing, circle radius, and text offset.

IIgor Borzunov

Color and Size Legends

This example demonstrates how to create reusable color and size legends in D3 v5. It uses two custom functions, `colorLegend` and `sizeLegend`, to render ordinal color scales and square-root size scales as SVG groups. The color legend maps fruit categories to distinct fills, while the size legend displays tick values with proportional circle radii. Both legends use D3’s selection joins and scale APIs (`scaleOrdinal`, `scaleSqrt`) to update efficiently.

Ooptimizeresume

Color and Size Legends

This example demonstrates how to construct separate color and size legends for ordinal and quantitative scales. The color legend maps categorical fruit names to distinct colors using `scaleOrdinal`, while the size legend uses `scaleSqrt` with `ticks` to display five circle radii. Both legends are built with reusable functions that append SVG `<g>` groups, circles, and text elements. The code uses D3 v5 APIs including `selection.call`, `selection.merge`, and `selection.exit` to update legend components dynamically.

YYF

Color and Size Legends

This example demonstrates a reusable legend component for mapping ordinal color scales to categorical data. The visualization renders four fruit categories—apple, lemon, lime, and orange—as colored circles, with each circle’s fill derived from a `scaleOrdinal` and its position spaced vertically via a custom `colorLegend` function. The code uses D3 v5’s `select`, `scaleOrdinal`, and data join pattern to create SVG `<g>` groups containing circles and text labels. The legend is styled with CSS classes for tick elements, and the SVG container includes a border for visual framing.

AApoorv Agnihotri

Colors and Size Legends

This example demonstrates how to build custom legends for both ordinal color scales and sequential size scales in D3 v5 with SVG rendering. The color legend vertically displays five fruit categories, each with a colored circle and text label, while the size legend uses a square-root scale to show five tick values (10, 8, 6, 4, 2) as proportionally sized circles. The code implements reusable legend functions via `selection.call()`, with `scaleOrdinal`, `scaleSqrt`, and `ticks()` to generate the legend items.

AAsperge-Atomique