Charts · Lines

LineChart

Spline with an optional dotted baseline series. Family: Lines · chart 1 of 60.

Hits per hour
hour	hits	baseline
00	18	22
02	14	18
04	11	15
06	16	17
08	34	30
10	58	48
12	71	60
14	66	62
16	74	64
18	88	70
20	62	55
22	41	40

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Hits per hour
hour	hits	baseline
00	18	22
02	14	18
04	11	15
06	16	17
08	34	30
10	58	48
12	71	60
14	66	62
16	74	64
18	88	70
20	62	55
22	41	40

mode="precision"

Hits per hour
hour	hits	baseline
00	18	22
02	14	18
04	11	15
06	16	17
08	34	30
10	58	48
12	71	60
14	66	62
16	74	64
18	88	70
20	62	55
22	41	40

substrate="green"

Hits per hour
hour	hits	baseline
00	18	22
02	14	18
04	11	15
06	16	17
08	34	30
10	58	48
12	71	60
14	66	62
16	74	64
18	88	70
20	62	55
22	41	40

ground="cyanotype"

Example

The chart above, in each framework. Pick a framework once and every example on the site follows it.

shell

npm install @silverpoint/react @silverpoint/grounds @silverpoint/fonts

tsx

import '@silverpoint/fonts/fonts.css';
import '@silverpoint/grounds/styles.css';
import { LineChart } from '@silverpoint/react/line-chart';

const data = [
  { hour: '00', hits: 18, baseline: 22 },
  { hour: '02', hits: 14, baseline: 18 },
  { hour: '04', hits: 11, baseline: 15 },
  { hour: '06', hits: 16, baseline: 17 },
  { hour: '08', hits: 34, baseline: 30 },
  { hour: '10', hits: 58, baseline: 48 },
  { hour: '12', hits: 71, baseline: 60 },
  { hour: '14', hits: 66, baseline: 62 },
  { hour: '16', hits: 74, baseline: 64 },
  { hour: '18', hits: 88, baseline: 70 },
  { hour: '20', hits: 62, baseline: 55 },
  { hour: '22', hits: 41, baseline: 40 },
];

export default function App() {
  return (
    <div style={{ width: 480 }}>
      <LineChart
        data={data}
        xKey="hour"
        valueKey="hits"
        secondaryKey="baseline"
        title="Hits per hour"
        unit="hits"
      />
    </div>
  );
}

shell

npm install @silverpoint/vue @silverpoint/grounds @silverpoint/fonts

vue

<script setup lang="ts">
import '@silverpoint/fonts/fonts.css';
import '@silverpoint/grounds/styles.css';
import { SpLineChart } from '@silverpoint/vue/line-chart';

const data = [
  { hour: '00', hits: 18, baseline: 22 },
  { hour: '02', hits: 14, baseline: 18 },
  { hour: '04', hits: 11, baseline: 15 },
  { hour: '06', hits: 16, baseline: 17 },
  { hour: '08', hits: 34, baseline: 30 },
  { hour: '10', hits: 58, baseline: 48 },
  { hour: '12', hits: 71, baseline: 60 },
  { hour: '14', hits: 66, baseline: 62 },
  { hour: '16', hits: 74, baseline: 64 },
  { hour: '18', hits: 88, baseline: 70 },
  { hour: '20', hits: 62, baseline: 55 },
  { hour: '22', hits: 41, baseline: 40 },
];
</script>

<template>
  <div style="width: 480px">
    <SpLineChart
      :data="data"
      x-key="hour"
      value-key="hits"
      secondary-key="baseline"
      title="Hits per hour"
      unit="hits"
    />
  </div>
</template>

shell

npm install @silverpoint/angular @silverpoint/grounds @silverpoint/fonts

// src/styles.css:
//   @import '@silverpoint/fonts/fonts.css';
//   @import '@silverpoint/grounds/styles.css';

import { Component } from '@angular/core';
import { SpLineChart } from '@silverpoint/angular/line-chart';

@Component({
  selector: 'app-root',
  imports: [SpLineChart],
  template: `
    <div style="width: 480px">
      <sp-line-chart
        [data]="data"
        xKey="hour"
        valueKey="hits"
        secondaryKey="baseline"
        title="Hits per hour"
        unit="hits"
      />
    </div>
  `,
})
export class App {
  protected readonly data = [
    { hour: '00', hits: 18, baseline: 22 },
    { hour: '02', hits: 14, baseline: 18 },
    { hour: '04', hits: 11, baseline: 15 },
    { hour: '06', hits: 16, baseline: 17 },
    { hour: '08', hits: 34, baseline: 30 },
    { hour: '10', hits: 58, baseline: 48 },
    { hour: '12', hits: 71, baseline: 60 },
    { hour: '14', hits: 66, baseline: 62 },
    { hour: '16', hits: 74, baseline: 64 },
    { hour: '18', hits: 88, baseline: 70 },
    { hour: '20', hits: 62, baseline: 55 },
    { hour: '22', hits: 41, baseline: 40 },
  ];
}

shell

pip install reflex-silverpoint-react

python

import reflex as rx
from reflex_silverpoint_react import line_chart

DATA = [
    {"hour": "00", "hits": 18, "baseline": 22},
    {"hour": "02", "hits": 14, "baseline": 18},
    {"hour": "04", "hits": 11, "baseline": 15},
    {"hour": "06", "hits": 16, "baseline": 17},
    {"hour": "08", "hits": 34, "baseline": 30},
    {"hour": "10", "hits": 58, "baseline": 48},
    {"hour": "12", "hits": 71, "baseline": 60},
    {"hour": "14", "hits": 66, "baseline": 62},
    {"hour": "16", "hits": 74, "baseline": 64},
    {"hour": "18", "hits": 88, "baseline": 70},
    {"hour": "20", "hits": 62, "baseline": 55},
    {"hour": "22", "hits": 41, "baseline": 40},
]


def index() -> rx.Component:
    return rx.box(
        line_chart(
            data=DATA,
            x_key="hour",
            value_key="hits",
            secondary_key="baseline",
            title="Hits per hour",
            unit="hits",
        ),
        width="480px",
    )


app = rx.App()
app.add_page(index)

Import

Each chart has its own subpath, so a bundle only carries the charts it uses. Every adapter also exports every chart from its barrel.

Framework	Import
React	`import { LineChart } from '@silverpoint/react/line-chart';`
Vue	`import { SpLineChart } from '@silverpoint/vue/line-chart';`
Angular	`import { SpLineChart } from '@silverpoint/angular/line-chart'; // <sp-line-chart>`
Reflex	`from reflex_silverpoint_react import line_chart`

Props

The props LineChart adds to the ones every chart takes. Accessor props (…Key, keys, names) name fields of your rows and are ignored without data.

React / Angular	Vue	Reflex	Type	Description
`xKey`	`x-key`	`x_key`	`Accessor<string \| number>`	—
`valueKey`	`value-key`	`value_key`	`Accessor<number \| null \| undefined>`	—
`secondaryKey`	`secondary-key`	`secondary_key`	`Accessor<number \| null \| undefined>`	—
`curve`	`curve`	`curve`	`LineCurve`	—
`series`	`series`	`series`	`'all' \| 'primary'`	`all` draws the secondary series when there is one; `primary` omits it.
`connectNulls`	`connect-nulls`	`connect_nulls`	`boolean`	Whether a gap left by a missing value is bridged (REQ-008).

Common props

Every chart also takes these. Framework conventions: camelCase in React and Angular, kebab-case in Vue templates, snake_case in Reflex. Read more about them.

Show the 22 common props

React / Angular	Vue	Reflex	Type	Description
`data`	`data`	`data`	`readonly Datum[]`	Rows to draw. If omitted, the demo dataset is rendered (REQ-093) and the accessor props (`…_key`, `keys`, `names`) are ignored.
`ground`	`ground`	`ground`	`GroundRef`	Style ground: `silverpoint` or `cyanotype`, or a ground object. Defaults to the app provider's, or `silverpoint`.
`substrate`	`substrate`	`substrate`	`SubstrateName`	Prepared substrate within the ground (REQ-046).
`mode`	`mode`	`mode`	`InkMode`	`ink` by default; `precision` disables inking (REQ-021).
`seed`	`seed`	`seed`	`Seed`	Seed. If omitted, it is derived from `id` stably (REQ-003).
`id`	`id`	`id`	`string`	Stable identifier. If omitted, it is generated deterministically.
`height`	`height`	`height`	`number`	Height of the drawing area in px. Width is the container's unless pinned.
`width`	`width`	`width`	`number`	—
`chrome`	`chrome`	`chrome`	`'card' \| 'bare'`	`card` draws the full frame; `bare` only the drawing area (REQ-095).
`hatchFill`	`hatch-fill`	`hatch_fill`	`'tile' \| 'per-shape'`	How areas are filled (REQ-029).
`title`	`title`	`title`	`string`	—
`badge`	`badge`	`badge`	`string`	—
`value`	`value`	`value`	`string \| number`	—
`unit`	`unit`	`unit`	`string`	—
`footerLeft`	`footer-left`	`footer_left`	`string`	—
`footerRight`	`footer-right`	`footer_right`	`string`	—
`label`	`label`	`label`	`string`	Accessible name. If omitted, it is derived from `title` (REQ-120).
`description`	`description`	`description`	`string`	Long description for screen readers (REQ-120).
`dataTable`	`data-table`	`data_table`	`'visible' \| 'hidden' \| 'none'`	Tabular alternative; `hidden` leaves it for assistive technology only (REQ-121).
`locale`	`locale`	`locale`	`string`	—
`numberFormat`	`number-format`	`number_format`	`Intl.NumberFormatOptions`	—
`className`	`class-name`	`class_name`	`string`	—

Pointer and keyboard exploration are built in. The item under the pointer or focus is reported, and a click, Enter or Space selects it. The item is { seriesKey, index, datum, value, point: { x, y } }.

Framework	Active item	Selection	Custom readout
React	`onActiveChange`	`onSelect`	`tooltip={(item, readout) => …}`
Vue	`@active-change`	`@select`	`<template #tooltip>`
Angular	`(activeChange)`	`(select)`	`<ng-template spTooltip>`
Reflex	`on_active_change`	`on_select`	`tooltip=tooltip_template(…)`

Interaction and readouts →

Report it

Found something wrong with LineChart? Open an issue on GitHub — the form comes pre-filled with the chart and the version.

hour	hits	baseline
00	18	22
02	14	18
04	11	15
06	16	17
08	34	30
10	58	48
12	71	60
14	66	62
16	74	64
18	88	70
20	62	55
22	41	40

hour	hits	baseline
00	18	22
02	14	18
04	11	15
06	16	17
08	34	30
10	58	48
12	71	60
14	66	62
16	74	64
18	88	70
20	62	55
22	41	40

hour	hits	baseline
00	18	22
02	14	18
04	11	15
06	16	17
08	34	30
10	58	48
12	71	60
14	66	62
16	74	64
18	88	70
20	62	55
22	41	40

hour	hits	baseline
00	18	22
02	14	18
04	11	15
06	16	17
08	34	30
10	58	48
12	71	60
14	66	62
16	74	64
18	88	70
20	62	55
22	41	40

hour	hits	baseline
00	18	22
02	14	18
04	11	15
06	16	17
08	34	30
10	58	48
12	71	60
14	66	62
16	74	64
18	88	70
20	62	55
22	41	40

hour	hits	baseline
00	18	22
02	14	18
04	11	15
06	16	17
08	34	30
10	58	48
12	71	60
14	66	62
16	74	64
18	88	70
20	62	55
22	41	40

hour	hits	baseline
00	18	22
02	14	18
04	11	15
06	16	17
08	34	30
10	58	48
12	71	60
14	66	62
16	74	64
18	88	70
20	62	55
22	41	40

hour	hits	baseline
00	18	22
02	14	18
04	11	15
06	16	17
08	34	30
10	58	48
12	71	60
14	66	62
16	74	64
18	88	70
20	62	55
22	41	40

LineChart

Example

Import

Props

Common props

Events

hour	hits	baseline
00	18	22
02	14	18
04	11	15
06	16	17
08	34	30
10	58	48
12	71	60
14	66	62
16	74	64
18	88	70
20	62	55
22	41	40

hour	hits	baseline
00	18	22
02	14	18
04	11	15
06	16	17
08	34	30
10	58	48
12	71	60
14	66	62
16	74	64
18	88	70
20	62	55
22	41	40

hour	hits	baseline
00	18	22
02	14	18
04	11	15
06	16	17
08	34	30
10	58	48
12	71	60
14	66	62
16	74	64
18	88	70
20	62	55
22	41	40

hour	hits	baseline
00	18	22
02	14	18
04	11	15
06	16	17
08	34	30
10	58	48
12	71	60
14	66	62
16	74	64
18	88	70
20	62	55
22	41	40