Search

Connected Entities

Entities

Connect entities with directional or non-directional events.

Connected Entities
View live example →

Events can connect more than one entity together.

These events are drawn as lines between the entities they connect.

Events with a direction (determined by the first entity in entityIds) can be drawn with arrows.

See also:

import { createTimeline } from "kronograph";
import data from "./data";

const timeline = createTimeline("my-timeline");

timeline.set(data);
timeline.fit();
export default {
  entities: {
    "smith-johnathan-151": {
      label: "John Smith",
    },
    "west-josephine-126": {
      label: "Josephine West",
    },
    "roberts-nathaniel-023": {
      label: "Nathan Roberts",
    },
    "baxter-eleanor-004": {
      label: "Ella Baxter",
    },
  },
  events: {
    "Email 1": {
      entityIds: ["smith-johnathan-151", "roberts-nathaniel-023"],
      time: new Date(2025, 7, 14, 8, 49),
    },
    "Email 2": {
      entityIds: ["smith-johnathan-151", "baxter-eleanor-004"],
      time: new Date(2025, 7, 14, 8, 56),
    },
    "Email 3": {
      entityIds: ["smith-johnathan-151", "west-josephine-126"],
      time: new Date(2025, 7, 14, 9, 2),
    },
    "Email 4": {
      entityIds: ["smith-johnathan-151", "west-josephine-126"],
      time: new Date(2025, 7, 14, 9, 27),
    },
    "Email 5": {
      entityIds: ["baxter-eleanor-004", "roberts-nathaniel-023"],
      time: new Date(2025, 7, 14, 10, 20),
    },
    "Email 6": {
      entityIds: ["roberts-nathaniel-023", "smith-johnathan-151"],
      time: new Date(2025, 7, 14, 10, 30),
    },
    "Email 7": {
      entityIds: ["west-josephine-126", "smith-johnathan-151"],
      time: new Date(2025, 7, 14, 10, 40),
    },
    "Email 8": {
      entityIds: ["smith-johnathan-151", "west-josephine-126"],
      time: new Date(2025, 7, 14, 10, 51),
    },
    "Email 9": {
      entityIds: ["west-josephine-126", "smith-johnathan-151"],
      time: new Date(2025, 7, 14, 12, 5),
    },
    "Email 10": {
      entityIds: ["smith-johnathan-151", "west-josephine-126"],
      time: new Date(2025, 7, 14, 14, 37),
    },
    "Email 11": {
      entityIds: ["baxter-eleanor-004", "west-josephine-126"],
      time: new Date(2025, 7, 14, 16, 7),
    },
    "Email 12": {
      entityIds: ["west-josephine-126", "roberts-nathaniel-023"],
      time: new Date(2025, 7, 14, 17, 42),
    },
  },
};
<!doctype html>
<html>
  <head>
    <link rel="stylesheet" href="@ci/theme/kg/css/examples.css" />
  </head>
  <body>
    <div id="my-timeline" style="height: 100vh"></div>
    <script type="module" src="./code.js"></script>
  </body>
</html>
import React from "react";
import { createRoot } from "react-dom/client";
import Timeline from "kronograph/react/Timeline";
import data from "./data";

export const Demo = () => <Timeline entities={data.entities} events={data.events} />;

const root = createRoot(document.getElementById("my-timeline"));
root.render(<Demo />);
export default {
  entities: {
    "smith-johnathan-151": {
      label: "John Smith",
    },
    "west-josephine-126": {
      label: "Josephine West",
    },
    "roberts-nathaniel-023": {
      label: "Nathan Roberts",
    },
    "baxter-eleanor-004": {
      label: "Ella Baxter",
    },
  },
  events: {
    "Email 1": {
      entityIds: ["smith-johnathan-151", "roberts-nathaniel-023"],
      time: new Date(2025, 7, 14, 8, 49),
    },
    "Email 2": {
      entityIds: ["smith-johnathan-151", "baxter-eleanor-004"],
      time: new Date(2025, 7, 14, 8, 56),
    },
    "Email 3": {
      entityIds: ["smith-johnathan-151", "west-josephine-126"],
      time: new Date(2025, 7, 14, 9, 2),
    },
    "Email 4": {
      entityIds: ["smith-johnathan-151", "west-josephine-126"],
      time: new Date(2025, 7, 14, 9, 27),
    },
    "Email 5": {
      entityIds: ["baxter-eleanor-004", "roberts-nathaniel-023"],
      time: new Date(2025, 7, 14, 10, 20),
    },
    "Email 6": {
      entityIds: ["roberts-nathaniel-023", "smith-johnathan-151"],
      time: new Date(2025, 7, 14, 10, 30),
    },
    "Email 7": {
      entityIds: ["west-josephine-126", "smith-johnathan-151"],
      time: new Date(2025, 7, 14, 10, 40),
    },
    "Email 8": {
      entityIds: ["smith-johnathan-151", "west-josephine-126"],
      time: new Date(2025, 7, 14, 10, 51),
    },
    "Email 9": {
      entityIds: ["west-josephine-126", "smith-johnathan-151"],
      time: new Date(2025, 7, 14, 12, 5),
    },
    "Email 10": {
      entityIds: ["smith-johnathan-151", "west-josephine-126"],
      time: new Date(2025, 7, 14, 14, 37),
    },
    "Email 11": {
      entityIds: ["baxter-eleanor-004", "west-josephine-126"],
      time: new Date(2025, 7, 14, 16, 7),
    },
    "Email 12": {
      entityIds: ["west-josephine-126", "roberts-nathaniel-023"],
      time: new Date(2025, 7, 14, 17, 42),
    },
  },
};
<!doctype html>
<html>
  <head>
    <link rel="stylesheet" href="@ci/theme/kg/css/examples.css" />
  </head>
  <body>
    <div id="my-timeline" style="height: 100vh"></div>
    <script type="module" src="./code.jsx"></script>
  </body>
</html>

Terms of use

These terms do not alter or supersede any existing agreements between you (or your employer) and us.

By accessing or using any Content you agree to be bound by these Terms of Use. Please review these terms carefully before using the website.

The contents of this website, including but not limited to any text, code samples, API references, schemas, interactive tools, and other materials (collectively, the 'Content'), are made available for informational and internal evaluation purposes only. All intellectual property rights in the Content are reserved. No licence is granted to use the Content for any commercial purpose, or to copy, distribute, modify, reverse-engineer, or incorporate any part of the Content into any product or service, without our prior written consent.

This Content is provided “as is” and “as available,” without any representations, warranties, or guarantees of any kind, whether express or implied, including but not limited to implied warranties of merchantability, fitness for a particular purpose, non-infringement, or accuracy. To the fullest extent permitted by applicable law, we expressly exclude and disclaim all implied warranties, conditions, and other terms that might otherwise be implied.

We disclaim all liability for any loss or damage, whether direct, indirect, incidental, consequential, or otherwise, arising from any reliance placed on the Content or from your use of it, to the fullest extent permitted by applicable law. By continuing to access or use the Content, you acknowledge and agree to these terms.