Shapes and Colors with SVG and CSS

Color and Size Legends

This example demonstrates two distinct legend designs for SVG visualizations: a color legend mapping ordinal fruit categories to distinct hues, and a size legend using a square-root scale to represent numeric values through circle radii. The color legend renders four labeled circles with custom spacing, while the size legend generates five ticks with varying circle sizes and text offsets. Both legends are built using D3 v5 data joins, scaleOrdinal, scaleSqrt, and explicit enter/merge/exit patterns, with styling applied through CSS classes on tick groups.

0007ebey

Color and Size Legends

This example demonstrates two custom legend types rendered as SVG: a color legend mapping ordinal fruit categories to distinct hues, and a size legend using a square-root scale to encode numeric values through circle radii. The color legend uses `d3.scaleOrdinal` with domains for apple, lemon, lime, and orange, while the size legend employs `d3.scaleSqrt` with tick marks generated from the scale. Both legends are built procedurally using custom functions (`colorLegend` and `sizeLegend`) that append grouped circles and text elements, with spacing and offset parameters controlling layout. The visualization is constructed with D3 v5 and rendered entirely in SVG, with styling applied via CSS classes.

TThomas Seberechts

colour and size legends

This example demonstrates two separate SVG legends: a color legend using an ordinal scale mapping fruit names to distinct colors, and a size legend using a square-root scale with circular marks whose radii encode numeric values. The color legend renders colored circles for each category, while the size legend displays five ticks with proportional circle sizes and labels offset by the scaled radius. Both legends use reusable functions (`colorLegend` and `sizeLegend`) built with D3 v5, leveraging `selectAll`, `enter`, `merge`, and `exit` for data joins, with SVG elements styled via CSS.

KKurt J Nilsen

Color and Size Legends

This example demonstrates two legend styles rendered side by side in SVG. A color legend uses a d3.scaleOrdinal to map categorical fruit names to distinct hues, with circles and offset labels. A size legend employs d3.scaleSqrt to map a continuous numeric domain to circle radii, generating ticks via sizeScale.ticks. Both legends are built with reusable functions that bind data to SVG groups, circles, and text elements, with styling applied through CSS classes.

Ccaydener

Color and Size Legends

The example demonstrates two reusable legend components rendered as SVG: a color legend mapping fruit names to ordinal colors, and a size legend using a square-root scale with circular marks. Both legends are built with D3 v5, using `scaleOrdinal`, `scaleSqrt`, data joins with `selection.enter()`, and merge operations to update tick groups. The color legend draws lines labeled with fruit names, while the size legend displays circles sized by the scale with tick text offset by radius. Styling is applied via CSS classes for tick text and circle strokes.

Sshawnsrk

Color and Size Legends

This example demonstrates how D3 legends can encode data through color and size. Two separate legends are rendered with SVG: a color legend uses an ordinal scale to map fruit categories to distinct hues, while a size legend uses a square-root scale to represent numeric values with scaled circle radii. The code builds reusable legend components using D3’s data join pattern, applying scales like `scaleOrdinal` and `scaleSqrt`, with manual spacing and text offsets for tick labels.

Ddaigokawabe

Color and size legends

This example demonstrates two custom SVG legends: a color legend for ordinal data and a size legend for quantitative data. The color legend maps fruit names to distinct hues using d3.scaleOrdinal, while the size legend uses d3.scaleSqrt to translate numeric values into circle radii. Both legends are rendered as SVG groups with circles and text labels, positioned via transform attributes. The reusable functions colorLegend and sizeLegend accept configuration props like spacing and textOffset, and the size legend uses d3.scaleSqrt.ticks to generate labeled values.

AAjit Singh

Color and Size Legends

The example demonstrates two reusable legend components rendered in SVG: a color legend built with `d3.scaleOrdinal` mapping fruit names to categorical colors, and a size legend using `d3.scaleSqrt` for continuous numeric values with circular markers. Both legends are generated through custom functions that bind data to groups, with the color legend encoding categories via circle fill and the size legend varying circle radius. The code relies on D3 v5 selections, `.enter()`, and `.merge()` patterns to update the legends dynamically.

Zzhangfa