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Show 3D space

Previous chapter recalls: Beginning

  • You learned how to initialize the environment.
  • And you wrote a code, though you did not know what it did but successfully finished rendering a three-dimensional space on the screen.
This chapter can learn to
  • Learn what is working.
  • Learn how parseWork (json) fuve.load(work) works.

Preparatory work​

Like the previous section, we create a new directory (src/1.displaying-workand corresponding html and js or ts files.

jsx or tsx files can first copy the previous chapter.

src/1.displaying-work/index.html
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <link rel="icon" href="data:;base64,iVBORw0KGgo=" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Displays space | Display a work</title>
    <style>
      * {
        margin: 0;
        padding: 0;
      }
      html,
      body #app {
        width: 100%;
        height: 100%;
        overflow: hidden;
      }
    </style>
  </head>
  <body>
    <div id="app"></div>
    <script type="module" src="./index"></script>
  </body>
</html>
src/1.displaying-work/index.js
import { Five, parseWork } from "@realsee/five";

const workURL =
  "https://vrlab-public.ljcdn.com/release/static/image/release/five/work-sample/07bdc58f413bc5494f05c7cbb5cbdce4/work.json";

const five = new Five();

five.appendTo(document.querySelector("#app"));

fetch(workURL)
  .then((res) => res.json())
  .then((json) => {
    const work = parseWork(json);
    five.load(work);
  });

window.addEventListener("resize", () => five.refresh(), false);

export {};

Start service npm run dev And jump to the current page " http://localhost:3000/src/1.displaying-work.index.html".

tip

Please see your console. The port number will change due to your configuration and current port occupancy pattern. Please check the console output. If you use other development build tools, please start the service as required by your own development build tool.

What is Work​

Then we pause the hand of writing the code. We come to understand some of the concepts and to rest assured that it is simple.

Work Introduction​

We call a three-dimensional space a Work. A Work is then described through a structure of JSON known as work.json. Work You can access it vialike the Open Platform Interface. It can also be used as static as this example.

Five provides a method for parseWork for parsing work.json, and then get Work objects. Initialize the scene by passing Work objects into load.You did the same in the previous chapter.

Use restrictions on work​

You need to configure your security domain name and Work data available timeinRealsee Developer Center. Use Five to verify this in production environments to protect developers and see data security.

The above restrictions will not be verified in the following cases, which is convenient for development and testing：

  • Domain named localhost.
  • Domain named ip address, e.g. 127.0.0.1,192.168.0.5, 172.30.2.0, 10.33.10.2 etc.
  • Access in non-HTTP settings, e.g. file:// protocol.

work.jsondata samples and data description​

You do not need to understand what work.json can also be used very well Five. It is also not bad to know more about it.

Click to view work.json
{
  "_signature": "LLzk2WHDbRfzQ5R+v82uVQqAGWMPfvgQ05hTwxgWKGeXbTPKtoQ8eI6FmCxJjtVjQW+wuZmZfxpzXePv4MGrWidG/05i5RRSELlPLEFZN3qYPykJLEIYhg3Wtvr8XkOI8wdeMgV82CP4Hyi84k/W2g+S+HcFs5oXfbfbFXPL/Gs=",
  "allow_hosts": ["*"],
  "base_url": "https://vrlab-public.ljcdn.com/release/auto3dhd/9380ce27b46cbc5ba8d47fcf0e4c9e4f/",
  "certificate": "-----BEGIN CERTIFICATE-----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\nI7AIgzhqK1Ku/IXK0OSXJonn+/9X/VI=\n-----END CERTIFICATE-----",
  "create_time": "2020-07-29T15:18:06+08:00",
  "expire_at": "2132653492169",
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        "left": "images/cube_2048/7/a05b06a01171babb1aceb5aad8406ab8/7_l.jpg",
        "right": "images/cube_2048/7/a05b06a01171babb1aceb5aad8406ab8/7_r.jpg",
        "up": "images/cube_2048/7/a05b06a01171babb1aceb5aad8406ab8/7_u.jpg"
      },
      {
        "back": "images/cube_2048/8/2cd717b9c97f48ae79511855cc7e5138/8_b.jpg",
        "down": "images/cube_2048/8/2cd717b9c97f48ae79511855cc7e5138/8_d.jpg",
        "front": "images/cube_2048/8/2cd717b9c97f48ae79511855cc7e5138/8_f.jpg",
        "index": 8,
        "left": "images/cube_2048/8/2cd717b9c97f48ae79511855cc7e5138/8_l.jpg",
        "right": "images/cube_2048/8/2cd717b9c97f48ae79511855cc7e5138/8_r.jpg",
        "up": "images/cube_2048/8/2cd717b9c97f48ae79511855cc7e5138/8_u.jpg"
      },
      {
        "back": "images/cube_2048/9/0b634fe985df7011472b81c75babfd95/9_b.jpg",
        "down": "images/cube_2048/9/0b634fe985df7011472b81c75babfd95/9_d.jpg",
        "front": "images/cube_2048/9/0b634fe985df7011472b81c75babfd95/9_f.jpg",
        "index": 9,
        "left": "images/cube_2048/9/0b634fe985df7011472b81c75babfd95/9_l.jpg",
        "right": "images/cube_2048/9/0b634fe985df7011472b81c75babfd95/9_r.jpg",
        "up": "images/cube_2048/9/0b634fe985df7011472b81c75babfd95/9_u.jpg"
      },
      {
        "back": "images/cube_2048/10/40c1a6463b8c7462aadfca2a5f80f685/10_b.jpg",
        "down": "images/cube_2048/10/40c1a6463b8c7462aadfca2a5f80f685/10_d.jpg",
        "front": "images/cube_2048/10/40c1a6463b8c7462aadfca2a5f80f685/10_f.jpg",
        "index": 10,
        "left": "images/cube_2048/10/40c1a6463b8c7462aadfca2a5f80f685/10_l.jpg",
        "right": "images/cube_2048/10/40c1a6463b8c7462aadfca2a5f80f685/10_r.jpg",
        "up": "images/cube_2048/10/40c1a6463b8c7462aadfca2a5f80f685/10_u.jpg"
      },
      {
        "back": "images/cube_2048/11/9663b7885a119f2f06da06212986bc9b/11_b.jpg",
        "down": "images/cube_2048/11/9663b7885a119f2f06da06212986bc9b/11_d.jpg",
        "front": "images/cube_2048/11/9663b7885a119f2f06da06212986bc9b/11_f.jpg",
        "index": 11,
        "left": "images/cube_2048/11/9663b7885a119f2f06da06212986bc9b/11_l.jpg",
        "right": "images/cube_2048/11/9663b7885a119f2f06da06212986bc9b/11_r.jpg",
        "up": "images/cube_2048/11/9663b7885a119f2f06da06212986bc9b/11_u.jpg"
      },
      {
        "back": "images/cube_2048/12/01f84f2edd8642d0bf5e4874d01a28ac/12_b.jpg",
        "down": "images/cube_2048/12/01f84f2edd8642d0bf5e4874d01a28ac/12_d.jpg",
        "front": "images/cube_2048/12/01f84f2edd8642d0bf5e4874d01a28ac/12_f.jpg",
        "index": 12,
        "left": "images/cube_2048/12/01f84f2edd8642d0bf5e4874d01a28ac/12_l.jpg",
        "right": "images/cube_2048/12/01f84f2edd8642d0bf5e4874d01a28ac/12_r.jpg",
        "up": "images/cube_2048/12/01f84f2edd8642d0bf5e4874d01a28ac/12_u.jpg"
      },
      {
        "back": "images/cube_2048/13/e9ce1249af9000a33d566c653560c3d6/13_b.jpg",
        "down": "images/cube_2048/13/e9ce1249af9000a33d566c653560c3d6/13_d.jpg",
        "front": "images/cube_2048/13/e9ce1249af9000a33d566c653560c3d6/13_f.jpg",
        "index": 13,
        "left": "images/cube_2048/13/e9ce1249af9000a33d566c653560c3d6/13_l.jpg",
        "right": "images/cube_2048/13/e9ce1249af9000a33d566c653560c3d6/13_r.jpg",
        "up": "images/cube_2048/13/e9ce1249af9000a33d566c653560c3d6/13_u.jpg"
      }
    ]
  },
  "picture_url": "https://vrlab-public.ljcdn.com/release/auto3dhd/9380ce27b46cbc5ba8d47fcf0e4c9e4f/screenshot/1596005211_4/pc0_3aoiit6zp.jpg",
  "title_picture_url": "https://vrlab-public.ljcdn.com/release/auto3dhd/9380ce27b46cbc5ba8d47fcf0e4c9e4f/screenshot/1596005211_4/pc1_iQLf2N6a6_1.jpg",
  "vr_code": "8054djM0oR6ky3Ey8e"
}

  • _signature / certificate: digital signature of work content

  • expire_at: work expiration time

  • allow_hosts: secure domain for work

  • initial: initialize data, a State data.Description of Work the position of the initial state loaded, also called the initial view of the VR

    • mode: models
    • pano_index: initialize point
    • longitude: Horizontal corner of camera
    • latitude: alpha corner of the camera
    • f: Visible angle in the vertical direction of the camera

  • model: three-dimensional model

    • file_url: resource address of the three-dimensional model, file .at3d for model format as deemed customized
    • material_textures: a map resource address for 3D models

  • panorama: panorama color information

    • list:
      • up / down / left / right / front / back: Global color information is stored and used in cubemap.

  • observers: Gathering point information

    • visible_nodes: List of visibility between collection points
    • access_nodes: list of connections between collection points
    • quaternon: rotation offset between collection points and model coordinates
    • standing_position: Ground Coordinates of Gathering Points
    • position: collection point coordinates
    • floor_index: Gather Point Layer

Work Object​

Compared to the work.jsonabove, you may have used Work Objects, he is the product of the parseWork function. Work object compared to work.json will be highly serialized and you can view the details in Five Five API document.

Various Demo Patterns​

Five has a variety of built-in modes. The default state is to display the full state, which is the same as the final result obtained in the previous chapter. We can also display the model state to view the macroscopic state of the three-dimensional space.Toggles the state properties we will provide to Five SDK, setState() method, stateChange events.Detailed State related content will be learned in the next chapter. Let's simply implement a model control button.

Add ui button​

To reduce sample code complexity, use Bootstrap as UI library,

src/1.displaying-work/index.html
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <link rel="icon" href="data:;base64,iVBORw0KGgo=" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>space | Displaying work</title>
    <!-- Add Bootstrap UI styles -->
    <link
      href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.1/dist/css/bootstrap.min.css"
      rel="stylesheet"
      crossorigin="anonymous"
    />
    <link
      href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.5.0/font/bootstrap-icons.css"
      rel="stylesheet"
    />
    <style>
      html,
      body,
      #app {
        width: 100%;
        height: 100%;
        overflow: hidden;
      }
    </style>
  </head>
  <body>
    <div id="app"></div>
    <!-- Mode switching -->
    <nav class="navbar fixed-bottom navbar-light bg-light">
      <div class="container-fluid justify-content-center">
        <div class="btn-group">
          <a href="javascript:;" class="btn btn-primary active js-Panorama"
            >Panoramic tour</a
          >
          <a href="javascript:;" class="btn btn-primary js-Floorplan"
            >Space overview</a
          >
        </div>
      </div>
    </nav>
    <script type="module" src="./index"></script>
  </body>
</html>

Use setState and state change events​

  • Use five.setState({ mode }) to allow Five to switch in different models.
  • Switch Five in a different mode with five.state.mode
  • By state change events can listen to state changes, including, of course, state.mode.
src/1.displaying-work/index.js
import { Five, parseWork } from "@realsee/five";

const workURL =
  "https://vrlab-public.ljcdn.com/release/static/image/release/five/work-sample/07bdc58f413bc5494f05c7cbb5cbdce4/work.json";

const five = new Five();

five.appendTo(document.querySelector("#app"));

fetch(workURL)
  .then((res) => res.json())
  .then((json) => {
    const work = parseWork(json);
    five.load(work);
  });

window.addEventListener("resize", () => five.refresh(), false);

{
  // === mode switch ===
  const buttons = {
    Panorama: document.querySelector(".js-Panorama"),
    Floorplan: document.querySelector(".js-Floorplan"),
  };

  for (const [modeName, element] of Object.entries(buttons)) {
    element.addEventListener(
      "click",
      () => {
        five.setState({ mode: modeName });
      },
      false
    );
  }

  five.on("stateChange", (state) => {
    for (const [modeName, element] of Object.entries(buttons)) {
      if (modeName === state.mode) {
        element.classList.add("active");
      } else {
        element.classList.remove("active");
      }
    }
  });
}

export {};

Returning to your browser to view it, you will find control bars at the bottom of your page, Panoramic Roaming space overview allows three-dimensional space to change status.

Good 🥳 !

The next section will be completed by you​

Next section will be successful
  • Learn what is State.
  • How to change the directions/position of 3D space observation.
  • Learn how to work with the code just now, e.g. setState stateChange.
  • Autoring features via State.
Last updated on by sansi.lcj