Graflume · Alpha

Ternary · Chart-specific features

Compare the relative shares of three non-negative components inside triangular coordinates. These tabs come from Graflume's public catalog. Every mode owns runnable data, options, a Quick API, and source-backed feature claims.

Chart family · Advanced families

Ternary

Compare the relative shares of three non-negative components inside triangular coordinates.

Quick API: ternary()
Browser snapshot: graflume/complete
mark: ternary
Presets: 1

Chart-specific features

Every executable mode in this family

These tabs come from Graflume's public catalog. Every mode owns runnable data, options, a Quick API, and source-backed feature claims.

Ternary chart

Ternary chart uses runnable data and options to demonstrate nonnegative component normalization; barycentric mapping.

StatusLoading

ternary
nonnegative component normalization
barycentric mapping
grid and labels
scatter and line/closed path
constant-sum validation policy
raw and normalized tooltip
component ticks and formatting

Graflume.ternary() Canvas 2D

Control help

Zoom and pan inspect the rendered surface without changing data axes or values. When playback controls are available, they move through real steps in the order each unique value first appears in the source data.

Use Tab to reach a control and Enter or Space to activate it. With the chart focused, use plus and minus to zoom and arrow keys to pan.

Auto placement compares perimeter candidates and avoids the plot, legend, and other callouts when possible. Explicit placement is preserved with only necessary safety correction. Callout text wraps safely inside the bubble. Long unbroken tokens are visually shortened within the line budget, while the complete source text remains available to assistive technology.

Ternary chart · Row data
`a`quantitative	`b`quantitative	`c`quantitative	`series`ordinal
70	18	12	Balanced blend
65.5	25.53	8.97	Balanced blend
61	30.12	8.88	Balanced blend
56.5	30.28	13.22	Balanced blend
52	26.73	21.27	Balanced blend
47.5	22.02	30.48	Balanced blend
43	19.28	37.72	Balanced blend
38.5	20.68	40.82	Balanced blend
34	26.3	39.7	Balanced blend
29.5	34.16	36.34	Balanced blend
25	41.14	33.86	Balanced blend
20.5	44.58	34.92	Balanced blend

Ternary chart uses runnable data and options to demonstrate nonnegative component normalization; barycentric mapping.

Browser API · Portable schema

Browser API

Graflume.ternary()

const data = [
  {
    "a": 70,
    "b": 18,
    "c": 12,
    "series": "Balanced blend"
  },
  {
    "a": 65.5,
    "b": 25.53,
    "c": 8.97,
    "series": "Balanced blend"
  },
  {
    "a": 61,
    "b": 30.12,
    "c": 8.88,
    "series": "Balanced blend"
  },
  {
    "a": 56.5,
    "b": 30.28,
    "c": 13.22,
    "series": "Balanced blend"
  },
  {
    "a": 52,
    "b": 26.73,
    "c": 21.27,
    "series": "Balanced blend"
  },
  {
    "a": 47.5,
    "b": 22.02,
    "c": 30.48,
    "series": "Balanced blend"
  },
  {
    "a": 43,
    "b": 19.28,
    "c": 37.72,
    "series": "Balanced blend"
  },
  {
    "a": 38.5,
    "b": 20.68,
    "c": 40.82,
    "series": "Balanced blend"
  },
  {
    "a": 34,
    "b": 26.3,
    "c": 39.7,
    "series": "Balanced blend"
  },
  {
    "a": 29.5,
    "b": 34.16,
    "c": 36.34,
    "series": "Balanced blend"
  },
  {
    "a": 25,
    "b": 41.14,
    "c": 33.86,
    "series": "Balanced blend"
  },
  {
    "a": 20.5,
    "b": 44.58,
    "c": 34.92,
    "series": "Balanced blend"
  }
];

const options = {
  "accessibility": {
    "description": "Zoom and pan inspect the rendered surface without changing data axes or values. When playback controls are available, they move through real steps in the order each unique value first appears in the source data.",
    "label": "Ternary example"
  },
  "axes": {
    "x": false,
    "y": false
  },
  "height": 620,
  "interaction": {
    "controls": {
      "annotations": false,
      "export": true,
      "fullscreen": true,
      "labels": {
        "controls": "Chart controls",
        "enterFullscreen": "Enter fullscreen",
        "exitFullscreen": "Exit fullscreen",
        "exportPng": "Download PNG",
        "hideAnnotations": "Hide callouts",
        "loop": "Loop playback",
        "nextFrame": "Next frame",
        "pause": "Pause",
        "play": "Play",
        "previousFrame": "Previous frame",
        "reset": "Reset view",
        "seek": "Playback position",
        "showAnnotations": "Show callouts",
        "speed": "Playback speed",
        "zoomIn": "Zoom in",
        "zoomOut": "Zoom out"
      },
      "playback": false,
      "reset": true,
      "zoom": true
    },
    "hover": true,
    "navigation": {
      "drag": true,
      "keyboard": true,
      "maxZoom": 6,
      "minZoom": 1,
      "pinch": true,
      "wheel": "modifier"
    },
    "tooltip": {
      "fields": [
        {
          "field": "a",
          "format": "number",
          "label": "A"
        },
        {
          "field": "b",
          "format": "number",
          "label": "B"
        },
        {
          "field": "c",
          "format": "number",
          "label": "C"
        },
        {
          "field": "series",
          "format": "auto",
          "label": "Series"
        }
      ],
      "title": "Ternary",
      "trigger": "mark"
    }
  },
  "locale": "en",
  "mark": {
    "fields": {
      "c": "c",
      "series": "series"
    },
    "options": {
      "mode": "line"
    }
  },
  "padding": {
    "top": 52
  },
  "theme": "graflume-light",
  "title": {
    "subtitle": "Ternary chart uses runnable data and options to demonstrate nonnegative component normalization; barycentric mapping.",
    "text": "Ternary"
  },
  "width": "container",
  "x": {
    "field": "a",
    "title": "Component A (%)",
    "type": "quantitative"
  },
  "y": {
    "field": "b",
    "title": "Component B (%)",
    "type": "quantitative"
  }
};

Graflume.ternary('#chart', data, options);

Portable schema

ChartSpec 0.1 · options

{
  "accessibility": {
    "description": "Zoom and pan inspect the rendered surface without changing data axes or values. When playback controls are available, they move through real steps in the order each unique value first appears in the source data.",
    "label": "Ternary example"
  },
  "axes": {
    "x": false,
    "y": false
  },
  "height": 620,
  "interaction": {
    "controls": {
      "annotations": false,
      "export": true,
      "fullscreen": true,
      "labels": {
        "controls": "Chart controls",
        "enterFullscreen": "Enter fullscreen",
        "exitFullscreen": "Exit fullscreen",
        "exportPng": "Download PNG",
        "hideAnnotations": "Hide callouts",
        "loop": "Loop playback",
        "nextFrame": "Next frame",
        "pause": "Pause",
        "play": "Play",
        "previousFrame": "Previous frame",
        "reset": "Reset view",
        "seek": "Playback position",
        "showAnnotations": "Show callouts",
        "speed": "Playback speed",
        "zoomIn": "Zoom in",
        "zoomOut": "Zoom out"
      },
      "playback": false,
      "reset": true,
      "zoom": true
    },
    "hover": true,
    "navigation": {
      "drag": true,
      "keyboard": true,
      "maxZoom": 6,
      "minZoom": 1,
      "pinch": true,
      "wheel": "modifier"
    },
    "tooltip": {
      "fields": [
        {
          "field": "a",
          "format": "number",
          "label": "A"
        },
        {
          "field": "b",
          "format": "number",
          "label": "B"
        },
        {
          "field": "c",
          "format": "number",
          "label": "C"
        },
        {
          "field": "series",
          "format": "auto",
          "label": "Series"
        }
      ],
      "title": "Ternary",
      "trigger": "mark"
    }
  },
  "locale": "en",
  "mark": {
    "fields": {
      "c": "c",
      "series": "series"
    },
    "options": {
      "mode": "line"
    }
  },
  "padding": {
    "top": 52
  },
  "theme": "graflume-light",
  "title": {
    "subtitle": "Ternary chart uses runnable data and options to demonstrate nonnegative component normalization; barycentric mapping.",
    "text": "Ternary"
  },
  "width": "container",
  "x": {
    "field": "a",
    "title": "Component A (%)",
    "type": "quantitative"
  },
  "y": {
    "field": "b",
    "title": "Component B (%)",
    "type": "quantitative"
  }
}

Catalog

Modes · compatibility identifiers

The source-controlled catalog maps callable modes in this family and compatibility identifiers to their canonical modes. This table contains executable entries only.

Mode / compatibility ID search

1 modes · 0 compatibility identifiers

Ternary · supported modes · representative `ternary`
ID	Name	Quick API	mode	mark	renderer
`ternary`	Ternary chart	`ternary()`	`default`	`ternary`	`canvas`

ChartSpec · SpatialSpec

Legend and emphasis

Identify series, emphasize a datum or range, place a custom callout, and let readers select marks.

Legend: Explain the series and scale represented by each color, line, or symbol inside the chart.
Point and range highlights: Emphasize a datum, value set, axis interval, or plot region without changing source values.
Custom callouts: Attach user-authored safe text to a datum, axis range, or normalized plot position. Auto placement compares perimeter candidates and avoids the plot, legend, and other callouts when possible. Explicit placement is preserved with only necessary safety correction. Callout text wraps safely inside the bubble. Long unbroken tokens are visually shortened within the line budget, while the complete source text remains available to assistive technology.
Interactive selection: Click a mark to select it, press Escape to clear it, and consume selection state and events in the host application.

Manual

Integration checklist

ARIA · table fallback

Accessibility

Canvas ARIA metadata is paired with a text summary and table fallback.

standard · large · ultra

Performance

Standard, large, and ultra profiles bound rendering work.

Chart catalog