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@Meister619(Loïc LE TEXIER)in株式会社マイスター・ギルド

Matterport Labs 2021

Last updated at Posted at 2021-08-05

マーターポート・ラボ　2021年（日本語）

The Matterport Labs page is a place for Matterport's own developers to show ideas of what is possible to develop using the Matterport platform. As of this writing there are 3 prototypes available to play with:

  1. Pano Painter: A painting tool to apply textures only on the horizontal surfaces and to color any surfaces of a scene.
  2. Fly Through Generator: A path-finder tool to automatically generate a fly-through between 2 points that the user selects in a scene.
  3. Spatial Planner: A room planner tool to plan furniture layout in a scene on a per room basis.

You may have noticed that I wrote that these prototypes show what's possible to develop using the Matterport platform and not the Matterport SDK because some functionalities used to build the prototypes are not available in the current version of the SDK (and the APIs).

Let's find out what that means ...

The Matterport platform

So, what is the Matterport platform?

The Matterport platform is composed of the Showcase SDK, the Model API and the code samples from the tutorial and the examples for the SDK. And I would argue that also includes the code from the Labs applications which is, although not officially distributed, easily accessible from the browser's developer tools and shows which functionalities might be officially introduced in future versions of the SDK.

The stack used includes the following technologies:

  • Yarn
  • TypeScript
  • React
  • Three.js (version 0.124.0 but not newer!)

As well as other libraries depending on the application.

So how get your hands on the Labs applications' code?

The Labs applications' code and assets

As I said earlier, the code from the Labs applications is available from the browser's developer tools.

I use Chrome Version 91.0.4472.114 (Official Build) (x86_64) and here is the way to do it in Chrome:

1) Launch the application you want to see the code of (In this example, we will use the Pano Painter application).
2) Open the developer tools.
3) Select the Sources tab:
image.png
4) Then, select the Page tab and double-click on the top item to see its content:
image.png
As you can see there is a lot of stuff in there, let's unpack the more interesting bits:

・ labs.matterport.com contains the assets and the bundled code for the root page, we are not especially interested in this.
image.png
・ app-iframe (index.html)＞static.matterport.com contains the assets and the bundled code for the painter tool, we are only interested in the assets as this is not the source code we are looking for.
image.png
・ app-iframe (index.html)＞webpack:// contains the code we are looking for and a lot more. ./fonts/ contains fonts used by the application. ./src/ contains the code for the painter tool. ../ contains the code of the 2 Matterport libraries used by this application @mp/common and @mp/save (the latter is not available in the official SDK). Hls/ and datadisk/jenkins/workspace/sdk_examples-tags_painter-1.4.1/node_modules contain information about the libraries imported by the painter application
image.png
・ app-iframe (index.html)＞sdk-iframe (showcase.html)＞static.matterport.com contains the assets and the bundled code for the SDK Bundle, we are only interested in this because the Labs applications use a newer version of the SDK Bundle not yet available and we need to replace the files in the current version of the SDK Bundle with these.
image.png
Now that we found the code and assets, we need to build a new project to run it ...

Base Project

To build a base project for a Labs application, let's start with the local environment setup from the SDK Bundle tutorials:

git clone https://github.com/matterport/showcase-sdk-tutorial.git
mv showcase-sdk-tutorial matterport-base
cd matterport-base 
curl https://static.matterport.com/showcase-sdk/bundle/3.1.42.14-24-gb057e5145/showcase-bundle.zip -o bundle.zip
unzip bundle.zip -d ./bundle
rm -rf bundle.zip
cd ..

Then, let's get the Matterport libraries from the Showcase SDK examples.

git clone https://github.com/matterport/showcase-sdk-examples.git
cd showcase-sdk-examples
yarn install
yarn install-bundle
cp -r packages/common ../matterport-base/common
cp -r packages/core ../matterport-base/core
cd ..
rm -rf showcase-sdk-examples

Don't forget to set the SDK Key in the /index.html file:

/index.html
// ...
  <iframe id="showcase"
          src="/bundle/showcase.html?m=22Ub5eknCVx&play=1&qs=1&log=0&applicationKey=PUT_YOUR_SDK_KEY_HERE"// ...

And in the src/index.ts file of the src folder:

src/index.ts
// ...
const key = 'PUT_YOUR_SDK_KEY_HERE';
// ...

Let's install the libraries:

yarn install

Then start the server:

yarn start

Launch http://localhost:8000/

Open the debug console and you should see:
Hello Bundle SDK!

Minimal React Application

The Labs applications use React and Three.js, so let's improve our base project.

First, rename src/index.ts to src/index.tsx:

mv src/index.ts src/index.tsx

Then, let's create our React application:

  • index.tsx renders the Main react component:
src/index.tsx
import './main.css';

import React from 'react';
import * as ReactDom from 'react-dom';
import { Main } from './components/Main';

ReactDom.render((
  <Main
    onMount={onMount}
  />
), document.getElementById('content'));

async function onMount(modelSid: string) {

}
  • Create a file for the main React component:
src/components/Main.tsx
import React, { Component, Fragment } from 'react';
import { Frame } from './Frame';
import { Dict } from '@mp/core';
const defaultSid = 'j4RZx7ZGM6T';
type Props = {
  onMount?(modelSid: string): void;
};
type State = {
  sdk: any | undefined;
  error: string | undefined;
  inProgress: boolean;
  warning: string;
};
export class Main extends Component<Props, State> {
  private modelSid: string;
  private apiHost: string;
  private applicationKey: string;
  private iframeRef = React.createRef<HTMLIFrameElement>();
  constructor(props: Props) {
    super(props);
    const urlParams = new URLSearchParams(window.location.search);
    this.modelSid = urlParams.get('m') || defaultSid;
    this.apiHost = urlParams.get('apiHost') || '';
    this.applicationKey = urlParams.get('applicationKey') || 'PUT_YOUR_SDK_KEY_HERE';
    this.state = {
      sdk: undefined,
      error: undefined,
      inProgress: false,
      warning: '',
    };
  }
  componentDidMount() {
    if (this.props.onMount) {
      this.props.onMount(this.modelSid);
    }
    connectSdk(
      this.iframeRef.current,
      this.applicationKey,
      (sdk) => this.onSdkConnect(sdk),
      (error) => this.setState({ error })
    );
  }
  componentWillUnmount() {
  }
  async onSdkConnect(sdk: State['sdk']) {
    type Sweep = {
      alignmentType: string;
    };
    const sweepCollection: Dict<{ aligned: boolean; }> = {};
    sdk.Sweep.data.subscribe({
      onAdded(index: string, item: Sweep) {
        sweepCollection[index] = { aligned: item.alignmentType === 'aligned' };
        setAlignedWarning();
      }
    });
    const currentPose: { sweep: string } = {
      sweep: '',
    }
    sdk.Camera.pose.subscribe({
      onChanged(pose: { sweep: string; }) {
        if (currentPose.sweep !== pose.sweep) {
          currentPose.sweep = pose.sweep;
          if (sweepCollection[currentPose.sweep]) {
            setAlignedWarning();
          }
        }
      }
    });
    const setAlignedWarning = () => {
      const currentSweep = sweepCollection[currentPose.sweep];
      if (currentSweep) {
        this.setState({
          warning: currentSweep.aligned ? '' : 'Navigate to an aligned sweep to use the paint tools',
        });
      }
    }
  }
  render() {
    return (
      <Fragment>
        <Frame
          getRef={this.iframeRef}
          modelSid={this.modelSid}
          apiHost={this.apiHost}
          applicationKey={this.applicationKey}
        />
      </Fragment>
    );
  }
}
function connectSdk(iframe: HTMLIFrameElement, applicationKey: string, onConnect: (sdk: State['sdk']) => void, onError: (error: string) => void): void {
  iframe.addEventListener('load', async function () {
    try {
      const sdk = await (iframe.contentWindow as any).MP_SDK.connect(iframe, applicationKey, '3.5');
      onConnect(sdk);
    } catch (e) {
      onError(e);
    }
  });
}
  • Create a file for the React component rendering the iframe:
src/components/Frame.tsx
import React, { Component } from 'react';
interface Props {
  src: string;
}
export class Frame extends Component<Props, {}> {
  render() {
    return (
      <div className='frame'>
        <iframe id='sdk-iframe' className='frame' src={this.props.src + '&title=0&qs=1&hr=0&brand=0&help=0'}></iframe>
      </div>
    );
  }
}
  • Create a basic CSS file:
src/main.css
#sdk-iframe {
  width: 100vw;
  height: 100vh;
}

body {
  -ms-user-select: none;
  -webkit-user-select: none;
  user-select: none;
  overflow: hidden;
}
TypeScript config

Add the following to the compilerOptions:

tsconfig.json
    "experimentalDecorators": true,
    "jsx": "react",
    "baseUrl": ".",
    "allowSyntheticDefaultImports": true,
    "resolveJsonModule": true,
    "skipLibCheck": true,

Modify the lib settings in the compilerOptions:

tsconfig.json
    "lib": [
      "dom",
      "es2015"
    ],

Modify the include settings:

tsconfig.json
  "include": [
    "src",
    "src/**/*.ts",
    "@types/**/*.d.ts",
  ]
Webpack config

Change the entry name from index.ts to index.tsx:

webpack.config.js
entry: {
    app: './src/index.tsx',
  },

Add file extensions for React and TypeScript:

webpack.config.js

  resolve: {
    extensions: ['.js', '.jsx', '.json', '.ts', '.tsx']
  },

Modify the module loader rules:

webpack.config.js
  module: {
    rules: [
      {
        test: /\.(ts|tsx)$/,
        loader: 'ts-loader'
      },
      { enforce: "pre", test: /\.js$/, loader: "source-map-loader" },
      {
        test: /\.css$/i,
        use: ['style-loader', 'css-loader'],
      },
    ]
  },

The Matterport libraries

Most of the Matterport libraries are available from the Showcase SDK examples:

  • The code for the @mp/bundle-sdk library is in the packages/bundle/ folder
  • The code for the @mp/common library is in the packages/common/ folder
  • The code for the @mp/core library is in the packages/core/ folder

But the version is probably different than the version used in the Matterport Labs applications, and the code for the @mp/save library is not available the Showcase SDK examples and will need to be extracted from the browser!

The same way we extracted the code for the applications from the browser, we can extract the library code : Simply, right-click on the the source files and select save as:

  • The code for the @mp/common library:
    image.png
    ※ The code to control the mouse cursor is not available in the Showcase SDK examples @mp/common library code, so we have to extract the common/src/index.ts and common/src/MouseCursor.ts files to be able to use these functionalities.

  • The code for the @mp/save library:
    image.png

Reconstructing the @mp/save library

To reconstruct the @mp/save library code, let's extract the files from Chrome and recreate their hierarchy:

+ save/
    + mp_labs_save/
        + save/
            + dexie/
                | dexie.js
            | App.ts
            | AppMessages.ts
            | Page.ts
            | PageMessages.ts

Then, in the library's root folder copy the package.json and tsconfig.json from the @mp/core library:

+ save/
    + mp_labs_save/
        + save/
            + dexie/
                | dexie.js
            | App.ts
            | AppMessages.ts
            | Page.ts
            | PageMessages.ts
    | package.json
    | tsconfig.json

Modify the name and the path to the TypeScript module root file in the package.json file:

package.json
{
  "name": "@mp/save",
  "version": "1.0.0",
  "main": "mp_labs_save/save/index.ts",
  "scripts": {
  }
}

Finally, we need to create the TypeScript module root file, let's mimick the core/src/index.js file from the @mp/core library:

index.ts
import * as App from './AppModule';
import * as Page from './PageModule';
import { Dict } from './types';

export { App, Page, Dict }

To structure the library's type hierarchy correctly, we need 2 additional files, one to define the App type:

AppModule.ts
export { OutdatedData, ISaveRequestHandler, AppSaver } from './App';
export { AppMsgType, SchemaDescriptor, SchemaResponse, SaveResponse, MigrateResponse, PayloadMap } from './AppMessages';

And one for the Page type:

PageModule.ts
export { DatabaseConfT, openDb, ISaveObserver, Metadata, AppSaveRequester, setupMockMessageButtons } from './Page';
export { PageMsgType, SchemaRequest, SaveRequest, LoadRequest, MigrateRequest, PayloadMap } from './PageMessages';

The index.ts file also uses types usually defined in the same folder and called type.js, so we can simply copy the core/src/type.js file from the @mp/core library.

And we should obtain the following hierarchy:

+ save/
    + mp_labs_save/
        + save/
            + dexie/
                | dexie.js
            | App.ts
            | AppMessages.ts
            | AppModule.ts
            | index.ts
            | Page.ts
            | PageMessages.ts
            | PageModule.ts
            | types.ts
    | package.json
    | tsconfig.json
No license field warning

To avoid warning package.json: No license field messages, copy the following line :

package.json
...
  "license": "UNLICENSED",
...

In the package.json file of each library directory:

  • bundle/package.json
  • common/package.json
  • core/package.json
  • save/package.json

Node libraries

Add the necessary libraries using yarn

yarn add react@16.12.0
yarn add @types/react@16.9.19
yarn add react-dom@16.12.0
yarn add @types/react-dom@16.9.5
yarn add three@0.124.0
yarn add @types/three
yarn add source-map-loader@0.2.4
yarn add css-loader
yarn add style-loader@1.1.3
yarn add webpack-dev-server
yarn add hls.js
yarn add classnames
yarn add dexie

Configuration

We also need to modify the various configuration files:

package.json

First, let's update the path to the application entry point in the package.json file:

package.json
...
  "main": "./src/index.tsx",
...
webpack.config.js

Let's as well update the application entry point path and output path in the Webpack configuration file:

webpack.config.js
// ...
  entry: './src/index.tsx',
  output: {
    filename: 'js/[name].bundle.js'
  },
// ...
tsconfig.json

Then, let's update the TypeScript configuration file:

tsconfig.json
...
    "experimentalDecorators": true,
    "jsx": "react",
    "baseUrl": ".",
    "allowSyntheticDefaultImports": true,
    "resolveJsonModule": true,
    "skipLibCheck": true,
    "lib": [
      "dom",
      "es2015"
    ],
  },
  "include": [
    "src",
    "src/**/*.ts",
    "@types/**/*.d.ts",
  ]
Yarn

We also need to link the code of the Matterport libraries to the yarn registry to be able to use them:

cd core
yarn link
cd ..
yarn link @mp/core
cd common
yarn link
yarn link @mp/core
cd ..
yarn link @mp/common
cd bundle
yarn link
cd ..
yarn link @mp/bundle-sdk
cd save
yarn link
cd ..
yarn link @mp/save

Add references to the local libraries in the package.json:

package.json
    "@mp/core": "^1.0.0",
    "@mp/common": "^1.0.0",
    "@mp/bundle-sdk": "^1.0.0",
    "@mp/save": "^1.0.0",

Don't forget to set the SDK Key in the common/src/index.ts file of the common library folder:

common/src/index.ts
// ...
export const sdkKey = 'PUT_YOUR_SDK_KEY_HERE';
// ...

And in the src/components/Main.tsx file of the src library folder:

src/components/Main.tsx
// ...
this.applicationKey = urlParams.get('applicationKey') || 'PUT_YOUR_SDK_KEY_HERE';
// ...

Testing

Let's start the development server to test our sample:

yarn start

Then, launch the browser with http://localhost:8000/.

Extracting Labs apps

Finally, let's create projects for the 3 Labs applications from our base project:

cd .. 
cp -r matterport-base matterport-pano-painter
cp -r matterport-base matterport-fly-through-generator
cp -r matterport-base matterport-spatial-planner

Now we can try to make working local applications out of the code we can retrieve from the browser developer tools ...

Pano Painter

The Pano Painter Matterport Labs application is a painting tool to apply textures only on the horizontal surfaces and to color any surfaces of a scene.

The code

First, let's extract the code from the browser: Simply, right-click on the the source files and select save as in the menu to save the file in the corresponding matterport-pano-painter/src/[…] path, the TypeScript_ files can be copied as they are, without any processing:
image.png
We should obtain the following hierarchy:

+ matterport-pano-painter/
    + src/
        + components/
            + Controls/
                + styles/
                    | button.css
                    | color-picker.css
                    | history.css
                    | paint-controls.css
                    | range.css
                    | texture-controls.css
                | Button.tsx
                | ColorPicker.tsx
                | HistoryControls.tsx
                | PaintControls.tsx
                | Range.tsx
                | TextureControls.tsx
            + KeyWatcher/
                | KeyWatcher.ts
            + Save/
                | PaintSaver.ts
                | TextureSaver.ts
                | index.ts
            + SceneNodes/
                + SceneComponents/
                    | BrushCursor.ts
                    | BrushInput.ts
                    | Dropper.ts
                    | PaintTarget.ts
                    | TextureSelector.ts
                    | TextureTarget.ts
                    | shader.ts
                | CameraOverrideNode.ts
                | DropperNode.ts
                | PaintNode.ts
                | TextureNode.ts
            | Frame.tsx
            | HistoriedPaintScene.ts
            | History.ts
            | Main.tsx
            | preventDefault.ts
        | fonts.css
        | index.tsx
        | main.css

But, trying to compile will generate 2 kind of errors pointing out to a missing file in src/components:

  • TS2307: Cannot find module '[…]/PointerButtonEvent' or its corresponding type declarations.
  • TS2339: Property '[button|device|down|position]' does not exist on type 'never'.

So we need to reconstruct the missing module file:

src/components/PointerButtonEvents.ts
import {
  IVector2,
  PointerButton,
  PointerButtonEvent,
  PointerButtonMask,
  PointerDevice,
  PointerMoveEvent,
} from '@mp/common';

export class PointerButtonEventData implements PointerButtonEvent {
  readonly id: number;
  readonly position: IVector2;
  readonly button: PointerButton;
  readonly down: boolean;
  readonly device: PointerDevice;
}
export class PointerMoveEventData implements PointerMoveEvent {
  readonly id: number;
  readonly position: IVector2;
  readonly buttons: PointerButtonMask;
  readonly device: PointerDevice;
}

CSS

But the CSS files contain Webpack's module processing JavaScript code instead of pure CSS, like the file below:

src/main.css
// Imports
var ___CSS_LOADER_API_IMPORT___ = require("../../../node_modules/css-loader/dist/runtime/api.js");
var ___CSS_LOADER_AT_RULE_IMPORT_0___ = require("-!../../../node_modules/css-loader/dist/cjs.js!./font.css");
exports = ___CSS_LOADER_API_IMPORT___(false);
exports.i(___CSS_LOADER_AT_RULE_IMPORT_0___);
// Module
exports.push([module.id, "#sdk-iframe {\n  width: 100vw;\n  height: 100vh;\n}\n\nbody {\n  -ms-user-select: none;\n  -webkit-user-select: none;\n  user-select: none;\n  overflow: hidden;\n}\n\n.banner {\n  position: fixed;\n  bottom: calc(100% - 2em);\n  width: 100%;\n  height: 2em;\n  line-height: 2em;\n  background-color: #f5f4f3;\n  padding-left: 8px;\n  transition: bottom .5s .5s;\n}\n\n.banner.collapsed {\n  bottom: 100%;\n}\n\n.banner.error {\n  background-color: #ff3158;\n}\n\n/* debug */\nbody.has-saves {\n  overflow: scroll;\n  overflow-x: hidden;\n}\n\n.save {\n  margin: 0 32px;\n  width: 64px;\n  height: 25px;\n}\n\n.saves img {\n  width: 128px;\n  height: 128px;\n}\n", ""]);
// Exports
module.exports = exports;

We need to extract the CSS rules which are contained in the second argument string of the array pushed on the exports in a statement looking like:

*.css
exports.push([module.id, "[…]", ""]);

The content of the string we extract looks like that:

src/main.css
#sdk-iframe {\n  width: 100vw;\n  height: 100vh;\n}\n\nbody {\n  -ms-user-select: none;\n  -webkit-user-select: none;\n  user-select: none;\n  overflow: hidden;\n}\n\n.banner {\n  position: fixed;\n  bottom: calc(100% - 2em);\n  width: 100%;\n  height: 2em;\n  line-height: 2em;\n  background-color: #f5f4f3;\n  padding-left: 8px;\n  transition: bottom .5s .5s;\n}\n\n.banner.collapsed {\n  bottom: 100%;\n}\n\n.banner.error {\n  background-color: #ff3158;\n}\n\n/* debug */\nbody.has-saves {\n  overflow: scroll;\n  overflow-x: hidden;\n}\n\n.save {\n  margin: 0 32px;\n  width: 64px;\n  height: 25px;\n}\n\n.saves img {\n  width: 128px;\n  height: 128px;\n}\n

So now we need to replace the \n with real newline characters:

src/main.css
#sdk-iframe {
  width: 100vw;
  height: 100vh;
}

body {
  -ms-user-select: none;
  -webkit-user-select: none;
  user-select: none;
  overflow: hidden;
}

.banner {
  position: fixed;
  bottom: calc(100% - 2em);
  width: 100%;
  height: 2em;
  line-height: 2em;
  background-color: #f5f4f3;
  padding-left: 8px;
  transition: bottom .5s .5s;
}

.banner.collapsed {
  bottom: 100%;
}

.banner.error {
  background-color: #ff3158;
}

/* debug */
body.has-saves {
  overflow: scroll;
  overflow-x: hidden;
}

.save {
  margin: 0 32px;
  width: 64px;
  height: 25px;
}

.saves img {
  width: 128px;
  height: 128px;
}

Now, we need to process the rest of the CSS files ... The painter app has CSS files in 2 directories:

  • src/
  • src/component/Controls/styles/

Let's list all the CSS files:

+ matterport-pano-painter/
    + src/
        + components/
            + Controls/
                + styles/
                    | button.css
                    | color-picker.css
                    | history.css
                    | paint-controls.css
                    | range.css
                    | texture-controls.css
        | fonts.css
        | main.css

The src/fonts.css file needs some more processing:

  • As it references URL paths to the font files it uses in the@font-face directive at the beginning of the file, we have to replace the URL path placeholders below:
src/fonts.css
...
@font-face {
  font-family: 'labs-paint';
  src:
    url(" + ___CSS_LOADER_URL_REPLACEMENT_0___ + ") format('truetype'),
    url(" + ___CSS_LOADER_URL_REPLACEMENT_1___ + ") format('woff'),
    url(" + ___CSS_LOADER_URL_REPLACEMENT_2___ + ") format('svg');
  font-weight: normal;
  font-style: normal;
  font-display: block;
}
...

With their respective paths defined at the beginning of the file:

src/fonts.css
...
var ___CSS_LOADER_URL_IMPORT_0___ = require("../fonts/labs-paint.ttf?caj1pz");
var ___CSS_LOADER_URL_IMPORT_1___ = require("../fonts/labs-paint.woff?caj1pz");
var ___CSS_LOADER_URL_IMPORT_2___ = require("../fonts/labs-paint.svg?caj1pz");
...

The resulting CSS rules should look like this:

src/fonts.css
@font-face {
  font-family: 'labs-paint';
  src:
    url("../fonts/labs-paint.ttf") format('truetype'),
    url("../fonts/labs-paint.woff") format('woff'),
    url("../fonts/labs-paint.svg") format('svg');
  font-weight: normal;
  font-style: normal;
  font-display: block;
}
...
  • And we also need to get rid of the extraneous \ characters used to encode the content of the string by replacing \" with " and \\ with \:
src/fonts.css
...
.icon-dropper-fill:before {
  content: "\e901";
}
.icon-dropper-outline:before {
  content: "\e908";
}
.icon-dropper:before {
  content: "\e902";
}
.icon-bucket-fill:before {
  content: "\e906";
}
.icon-bucket:before {
  content: "\e907";
}
.icon-brush:before {
  content: "\e900";
}
.icon-history:before {
  content: "\e904";
}
.icon-checkmark:before {
  content: "\e905";
}
.icon-chevron-down:before {
  content: "\e909";
}
...

But unfortunately the icons still won't display properly ...

The assets

The Labs applications need asset files for fonts or images, we will extract them from the browser too ...

Fonts

First, let's download the fonts: right-click on the the source files and select save as in the menu to save the file in the corresponding matterport-pano-painter/fonts/[…] path:

+ matterport-pano-painter/
    + fonts/
        | labs-paint.svg
        | labs-paint.ttf
        | labs-paint.woff
Images

Then, let's download the images: click on the the source files, right-click on the displayed image and select save as in the menu to save the file in the corresponding matterport-pano-painter/assets/[…] path:

+ matterport-pano-painter/
    + assets/
        | brick1.jpg
        | carpet1.jpg
        | hardwood1.jpg
        | plywood1.jpg
Bundle Images

Finally, we also need to download the painter application bundle extra images from the iframe:
image.png
And save them in the corresponding matterport-pano-painter/bundle/images/[…] path:

+ matterport-pano-painter/
    + bundle/
        + images/
            | Roboto-Bold.png
            | dot_default_2.png
            | dot_selected_2_2.png
            | line_default_2.png
            | line_selected_2_2.png
            | line_default_2.png
            | line_selected_2_2.png
Model SID

We also cannot use the AAWs9eZ9ip6 SID of the model used by the Labs application, but we can use another one, j4RZx7ZGM6T, which gives access to the same model:

src/components/Main.tsx
// ...
const defaultSid = 'j4RZx7ZGM6T';
// ...

A sample comes together!

image.png
Now that we created our local Labs application, lets try it!

Install

Install the Node.js modules:

yarn install

Link the Matterport local libraries:

cd core
yarn link
cd ..
yarn link @mp/core
cd common
yarn link
yarn link @mp/core
cd ..
yarn link @mp/common
cd bundle
yarn link
cd ..
yarn link @mp/bundle-sdk
cd save
yarn link
cd ..
yarn link @mp/save

Add references to the local libraries in the package.json:

package.json
    "@mp/core": "^1.0.0",
    "@mp/common": "^1.0.0",
    "@mp/bundle-sdk": "^1.0.0",
    "@mp/save": "^1.0.0",

Don't forget to set the SDK Key in the common/src/index.ts file of the common library folder:

common/src/index.ts
// ...
export const sdkKey = 'PUT_YOUR_SDK_KEY_HERE';
// ...

And in the src/components/Main.tsx file of the src library folder:

src/components/Main.tsx
// ...
this.applicationKey = urlParams.get('applicationKey') || 'PUT_YOUR_SDK_KEY_HERE';
// ...

※ When making this sample, I had CORS errors and access problems using my SDK Key, so I used the one from the lab application: 08s53auxt9txz1w6hx2iww1qb

Launch

To serve the sample, run the following command:

yarn start

image.png
The Matterport Labs Pano Painter sample on github ...

Fly Through Generator

The Fly Through Generator Matterport Labs application is a path-finder tool to automatically generate a fly-through between 2 points that the user selects in a scene.

The code

First, let's extract the code from the browser: Simply, right-click on the the source files and select save as in the menu to save the file in the corresponding matterport-fly-through-generator/src/[…] path, the TypeScript_ files can be copied as they are, without any processing:
image.png
We should obtain the following hierarchy:

+ matterport-fly-through-generator/
    + src/
        + react-components/
            | Frame.tsx
            | Main.tsx
            | PlayControl.tsx
            | SpeedControl.tsx
        + scene-components/
            | AxisContril.ts
            | DirtyTracker.ts
            | Grid.ts
            | Grip.ts
            | HighlightPoint.ts
            | NearestSweep.ts
            | PathBuilder.ts
            | PathBuilder2.ts
            | PathVisualizer.ts
            | SceneNodeObserver.ts
            | Sphere.ts
            | SplineCamera.ts
            | SweepVisualizer.ts
            | TunnelVisualizer.ts
        | AppContext.ts
        | AppFSM.ts
        | Application.ts
        | AppSerializer.ts
        | EnvContext.ts
        | index.tsx
        | SdkService.ts

The Node libraries

We need to add the following libraries using yarn:

yarn add @material-ui/core
yarn add @material-ui/icons
yarn add @tweenjs/tween.js
yarn add rxjs
yarn add xstate@4.10.0

The Matterport libraries

Like the Pano Painter app, most of the Matterport libraries are available from the Showcase SDK examples:

  • The code for the @mp/bundle-sdk library is in the packages/bundle/ folder
  • The code for the @mp/common library is in the packages/common/ folder
  • The code for the @mp/core library is in the packages/core/ folder

But the version is probably different than the version used in the Matterport Labs applications, and the code for the @mp/save library is not available the Showcase SDK examples and can be extracted from the browser or simply copied from the Pano Painter app.

Reconstructing src/interface.ts

But, trying to compile will generate 3 kind of errors pointing out to a missing file in src/:

  • TS2307: Cannot find module '[…]/interfaces' or its corresponding type declarations.
  • TS2339: Property '[composer|debug|nodeFactory]' does not exist on type 'ComponentContext'.
  • TS2305: Module '"../interfaces"' has no exported member '[IDisposable|PathPoint]'.

So we need to reconstruct the missing file:

src/interfaces.ts
import { BehaviorSubject } from 'rxjs';
import { ISceneNode, SceneComponent } from '@mp/common';
import { ObservableValue } from '@mp/core';
import { Box3, Material, Mesh, MeshStandardMaterial, Vector3 } from 'three';
import { LineMaterial } from 'three/examples/jsm/lines/LineMaterial';
import { Quaternion } from "three"
import { FSMEvent, FSMSchema } from './AppFSM';
import { Interpreter } from 'xstate';


export type PathPoint = {
    position: Vector3;
    floorPosition: Vector3;
    id: string;
}
export type PathState = {
    path: ObservableValue<any[]>,
    pathLength: ObservableValue<Number>,
    validPath: ObservableValue<any>,
}
export type EditState = {
    transformMode: ObservableValue<String>,
    focus: ObservableValue<Vector3>,
    focusTarget: ObservableValue<any>,
    hoverTarget: ObservableValue<any>,
    boxTransform: {
        position: ObservableValue<Vector3>,
        rotation: ObservableValue<Quaternion>,
        scale: ObservableValue<Vector3>,
    },
    startPos: ObservableValue<Vector3>,
    endPos: ObservableValue<Vector3>,
    pathState: {
        path: ObservableValue<any[]>,
        pathLength: ObservableValue<Number>,
        validPath: ObservableValue<boolean>,
    },
    visualizerState: {
        duration: ObservableValue<number>,
    }
}

export type EditMode = 'translate'| 'rotate'|'scale';

export type BoxTransformState = {
    position: ObservableValue<Vector3>;
    rotation: ObservableValue<Quaternion>;
    scale: ObservableValue<Vector3>; 
}

// From src/scene-components/PathBuilder.ts
export type Sweep = {
    floor: number;
    neighbors: string[];
    position: Vector3;
    rotation: Vector3;
    uuid: string;
    id: string;
    alignmentType: String;
}

// From the Spatial Planner sample's src/types.ts
export type IEnvContext = {
    apiHost: string;
    applicationKey: string;
    sid: string;
}

// From the Showcase SDK sample'S packages/inspector/src/Scene.ts
export interface IContext {
    editState: EditState;
    fsm: Interpreter<any, FSMSchema, FSMEvent, any>;
}

export interface IScene {
    readonly objects: BehaviorSubject<ISceneNode[]>;
    readonly widget: SceneComponent | null;
    readonly cameraInput: SceneComponent | null;
    readonly sensor: any;

    /**
     * This function deserializes the provided string into scene nodes.
     * Additionally, it starts the scene nodes right away.
     * @param serialized serialized scene objects
     */
    deserialize(serialized: string): Promise<void>;

    /**
     * Serialize the entire scene to a string.
     */
    serialize(): Promise<string>;
    addObject(node: ISceneNode): void;
    removeObject(node: ISceneNode): void;

    /**
     * Restores the inspector to the it's default state by removing all non-inspector scene nodes.
     */
    reset(): void;
}

export interface IDisposable {
    dispose(): void;
}

export interface IRoom {
    name: string;
    center: Vector3;
    radius: number;
    allMeshes: Mesh[];
    bbox: Box3;
    damMeshes: Mesh[];

    getMaterial(): MeshStandardMaterial;
    getEdgesMaterial(): LineMaterial;
    setVisible(visible: boolean): void;
    setObjectsVisible(visible: boolean): void;
    setObjectsInteractable(interactable: boolean): void;
    setDamVisible(visible: boolean): void;
    setGreyBoxVisible(visible: boolean): void;
    setMaterial(chunkType: ChunkType, material: Material, edges: boolean): IDisposable;
    setMaterial2(chunkType: ChunkType, material: Material, edges: boolean): void;
    setInteractable(interactable: boolean): void;
    meshForChunk(chunkType: ChunkType): Mesh[];
}

export enum ChunkType {
    Wall = 'wall',
    Ceiling = 'ceiling',
    Floor = 'floor',
    Door = 'door',
    Other = 'other',
    FloorCollider = 'FloorCollider',
}

export enum Materials {
    Edges = 'Edges',
    Invisible = 'Invisible',
    SolidMaterial = 'SolidMaterial',
}

export enum MeshDrawStyle {
    Basic = 'Basic',
    GreyBox = 'GreyBox',
    Transitioning = 'Transitioning',
}

export interface IRoomBuilder extends IRoom {
    addMesh(type: ChunkType, mesh: Mesh): void;
    addDamMesh(mesh: Mesh): void;
    addObject(node: ISceneNode, bbox: Box3, disposables: IDisposable[]): void;
    removeObject(node: ISceneNode): void;
    removeAllObjects(): void;
}

export type SelectingStateVisualProps = {
    roomHoverColor: number;
    roomUnhoverColor: number;
    roomHoverOpacity: number;
    roomUnhoverOpacity: number;
    edgesHoverColor: number;
    edgesUnhoverColor: number;
    edgesHoverOpacity: number;
    edgesUnhoverOpacity: number;
    edgesHoverWidth: number;
    edgesUnhoverWidth: number;
};

export type AppState = {
    phase: any;
    rooms: Map<string, IRoomBuilder>;
    roomSelection: ObservableValue<IRoom | null>;
    objectSelection: ObservableValue<ISceneNode | null>;
    meshDrawStyle: ObservableValue<MeshDrawStyle>;
    roomHover: ObservableValue<IRoom[]>;
    clippingHeight: ObservableValue<number>;
    sketchPainter: ObservableValue<SceneComponent | null>;
    selectingStateVisualProps: SelectingStateVisualProps;
}

Configuration

We also need to modify the Webpack configuration file:

webpack.config.js

Let's use the copy plugin to copy the bundle's fonts folder:

webpack.config.js
// ...
    new CopyPlugin([
      {
        from: 'node_modules/@mp/bundle-sdk',
        to: 'bundle'
      },
      { from: 'assets', to: 'assets'},
      { from: 'node_modules/@mp/bundle-sdk/fonts', to: 'fonts'},
    ]),
// ...

Sample

Now that we created our local Labs application, lets try it!

Install

Install the Node.js modules:

yarn install

Link the Matterport local libraries:

cd core
yarn link
cd ..
yarn link @mp/core
cd common
yarn link
yarn link @mp/core
cd ..
yarn link @mp/common
cd bundle
yarn link
cd ..
yarn link @mp/bundle-sdk
cd save
yarn link
cd ..
yarn link @mp/save

Add references to the local libraries in the package.json:

package.json
    "@mp/core": "^1.0.0",
    "@mp/common": "^1.0.0",
    "@mp/bundle-sdk": "^1.0.0",
    "@mp/save": "^1.0.0",

Don't forget to set the SDK Key in the common/src/index.ts file of the common library folder:

common/src/index.ts
// ...
export const sdkKey = 'PUT_YOUR_SDK_KEY_HERE';
// ...

And in the src/components/Main.tsx file of the src library folder:

src/components/Main.tsx
// ...
this.applicationKey = urlParams.get('applicationKey') || 'PUT_YOUR_SDK_KEY_HERE';
// ...

※ When making this sample, I had CORS errors and access problems using my SDK Key, so I used the one from the lab application: 08s53auxt9txz1w6hx2iww1qb

Launch

To serve the sample, run the following command:

yarn start

Unfortunately, the sample does not work correctly and the hint is in the browser's JavaScript console is:

AppSerializer.ts:44 Uncaught (in promise) components must be an array

The Matterport Labs Fly-Through Generator sample on github ...

Spatial Planner

The Spatial Planner Matterport Labs application is a room planner tool to plan furniture layout in a scene on a per room basis.

The code

First, let's extract the code from the browser: Simply, right-click on the the source files and select save as in the menu to save the file in the corresponding matterport-spatial-planner/src/[…] path, the TypeScript_ files can be copied as they are, without any processing:
image.png
We should obtain the following hierarchy:

+ matterport-spatial-planner/
    + src/
        + commands/
            | AddObjectCommand.ts
            | AddObjectToRoomCenterCommand.ts
            | AddSketchCommand.ts
            | ClearSelectionCommand.ts
            | DownloadImageCommand.ts
            | MoveCameraCommand.ts
            | RemoveObjectSelectionCommand.ts
            | SetGizmoModeCommand.ts
            | SetMeshDrawStyleCommand.ts
            | UpdateobjectCommand.ts
        + react-components/
            | AddObjectButton.tsx
            | AddObjectModal.tsx
            | AppRoot.tsx
            | BundleIframe.tsx
            | CommandProvider.tsx
            | DimensionEdit.tsx
            | DrawStyleprovider.tsx
            | EditMode.tsx
            | EditSizeModal.tsx
            | EnvContext.tsx
            | FSMContextProvider.tsx
            | FurnitureItem.tsx
            | GizmoModeprovider.tsx
            | ImageButton.styles.tsx
            | ImageButon.tsx
            | Main.tsx
            | NumberEdit.tsx
            | ObjectSelectionProvider.tsx
            | Objectselector.tsx
            | RoomSelectionProvider.tsx
            | SelectRoom.tsx
            | TopLeftControls.tsx
        + scene-components/
            | AnimatedValue.ts
            | BloomEffect.ts
            | ClippingPlane.ts
            | Draggablesurface.ts
            | EdgesMesh.ts
            | EventDispatcher.ts
            | FabricRenderer.ts
            | ItemView.ts
            | Plane.ts
            | PlaneDragHelper.ts
            | RoomComponent.ts
            | Selectable.ts
            | SelectableTint.ts
            | Skydome.ts
            | Slots.ts
            | SmoothTranslation.ts
            | SnapAxis.ts
            | SnapToFloor.ts
            | TransformGizmo.ts
            | TransformGizmo2.ts
        | AnimatedNumberPool.ts
        | Application2.ts
        | ApplicationFSM.ts
        | AppSerializer.ts
        | AssetMap.ts
        | CommandContext.ts
        | DrawStyleContext.ts
        | EditingClickSpy.ts
        | FSMContext.ts
        | GizmoModeContext.ts
        | graphql.ts
        | HideElement.ts
        | HoverSpy.ts
        | index.tsx
        | interfaces.ts
        | MaterialAnimator.ts
        | MaterialStacks.ts
        | MeshDrawStyleUpdater.ts
        | ObjectSelectionContext.ts
        | react-app-env.d.ts
        | Room.ts
        | RoomLoader.ts
        | RoomSelectionContext.ts
        | Roomupdater.ts
        | SelectionClickSpy.ts
        | SelectionMediator.ts
        | SharedMaterials.ts
        | types.tsx
        | util.ts

The Node libraries

We need to add the following Node libraries using yarn:

yarn add @material-ui/core
yarn add @material-ui/styles
yarn add @tweenjs/tween.js
yarn add rxjs
yarn add xstate@4.10.0
yarn add fabric
yarn add @types/fabric
yarn add lottie-react
yarn add tweakpane@2.4.3
yarn add jspdf

Assets

This sample needs to import a JSON data file that cannot be directly extracted from the browser like other source files.

Reconstructing assets/labs_loader.json

The assets/labs_loader.json file is imported in the src/react-components/AppRoot.tsx file:

src/react-components/AppRoot.tsx
// ...
import animation from '../../assets/labs_loader.json';
// ...

So we need to reconstruct the missing file. It must be available in one form or another in the final main.bundle.js file:
image.png
And looking for a JSON containing string using JSON.parse(' to get the statement parsing the string with the content of the assets/labs_loader.json file, we get one hit:
JavaScript:js/main.bundle.js
// ...
t.exports = JSON.parse('{"v":"5.5.7","meta":{"g":"LottieFiles AE 0.1.21","a":"Nick Woods","k":"","d":"loader for Matterport Labs","tc":""},"fr":29.9700012207031,"ip":0,"op":91.000003706506,"w":400,"h":400,"nm":"Loader","ddd":1,"assets":[{"id":"comp_0","layers":[{"ddd":1,"ind":1,"ty":4,"nm":"Cube 3","sr":1,"ks":{"o":{"a":0,"k":100,"ix":11},"rx":{"a":0,"k":0,"ix":8},"ry":{"a":1,"k":[{"i":{"x":[0.667],"y":[1]},"o":{"x":[0.167],"y":[0.167]},"t":75,"s":[0]},{"t":106.000004317469,"s":[60]}],"ix":9},"rz":{"a":0,"k":0,"ix":10},"or":{"a":0,"k":[0,0,0],"ix":7},"p":{"a":0,"k":[779,500,0],"ix":2},"a":{"a":0,"k":[0,0,0],"ix":1},"s":{"a":0,"k":[100,100,100],"ix":6}},"ao":0,"shapes":[{"ty":"gr","it":[{"ty":"rc","d":1,"s":{"a":1,"k":[{"i":{"x":[0.667,0.667],"y":[1,1]},"o":{"x":[0.333,0.333],"y":[0,0]},"t":60,"s":[0,0]},{"i":{"x":[0.667,0.667],"y":[1,1]},"o":{"x":[0.333,0.333],"y":[0,0]},"t":90,"s":[200,200]},{"t":120.0000048877,"s":[0,0]}],"ix":2},"p":{"a":0,"k":[0,0],"ix":3},"r":{"a":0,"k":0,"ix":4},"nm":"Rectangle Path 1","mn":"ADBE Vector Shape - Rect","hd":false},{"ty":"fl","c":{"a":0,"k":[0.960784313725,0.956862745098,0.952941176471,1],"ix":4},"o":{"a":0,"k":100,"ix":5},"r":1,"bm":0,"nm":"Fill 1","mn":"ADBE Vector Graphic - Fill","hd":false},{"ty":"tr","p":{"a":0,"k":[0,0],"ix":2},"a":{"a":0,"k":[0,0],"ix":1},"s":{"a":0,"k":[100,100],"ix":3},"r":{"a":0,"k":0,"ix":6},"o":{"a":0,"k":100,"ix":7},"sk":{"a":0,"k":0,"ix":4},"sa":{"a":0,"k":0,"ix":5},"nm":"Transform"}],"nm":"Rectangle 1","np":3,"cix":2,"bm":0,"ix":1,"mn":"ADBE Vector Group","hd":false}],"ip":60.0000024438501,"op":960.000039101602,"st":60.0000024438501,"bm":0},{"ddd":1,"ind":2,"ty":4,"nm":"Cube 2","sr":1,"ks":{"o":{"a":0,"k":100,"ix":11},"rx":{"a":0,"k":0,"ix":8},"ry":{"a":0,"k":0,"ix":9},"rz":{"a":0,"k":0,"ix":10},"or":{"a":0,"k":[0,0,0],"ix":7},"p":{"a":0,"k":[500,500,0],"ix":2},"a":{"a":0,"k":[0,0,0],"ix":1},"s":{"a":0,"k":[100,100,100],"ix":6}},"ao":0,"shapes":[{"ty":"gr","it":[{"ty":"rc","d":1,"s":{"a":1,"k":[{"i":{"x":[0.667,0.667],"y":[1,1]},"o":{"x":[0.333,0.333],"y":[0,0]},"t":30,"s":[0,0]},{"i":{"x":[0.667,0.667],"y":[1,1]},"o":{"x":[0.333,0.333],"y":[0,0]},"t":60,"s":[200,200]},{"t":90.0000036657751,"s":[0,0]}],"ix":2},"p":{"a":0,"k":[0,0],"ix":3},"r":{"a":0,"k":0,"ix":4},"nm":"Rectangle Path 1","mn":"ADBE Vector Shape - 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// ...

And simply save the content of the string as a new assets/labs_loader.json in our project!

Configuration

We also need to modify the Webpack configuration file:

tsconfig.json
tsconfig.json
...
    new CopyPlugin([
      {
        from: 'node_modules/@mp/bundle-sdk',
        to: 'bundle'
      },
      { from: 'assets/*', to: './'},
      { from: 'bundle/images/*', to: './images/'}
    ]),
...

Sample

Now that we created our local Labs application, lets try it!

Install

Install the Node.js modules:

yarn install

Link the Matterport local libraries:

cd core
yarn link
cd ..
yarn link @mp/core
cd common
yarn link
yarn link @mp/core
cd ..
yarn link @mp/common
cd bundle
yarn link
cd ..
yarn link @mp/bundle-sdk
cd save
yarn link
cd ..
yarn link @mp/save

Add references to the local libraries in the package.json:

package.json
    "@mp/core": "^1.0.0",
    "@mp/common": "^1.0.0",
    "@mp/bundle-sdk": "^1.0.0",
    "@mp/save": "^1.0.0",

Don't forget to set the SDK Key in the common/src/index.ts file of the common library folder:

common/src/index.ts
// ...
export const sdkKey = 'PUT_YOUR_SDK_KEY_HERE';
// ...

And in the src/components/Main.tsx file of the src library folder:

src/components/Main.tsx
// ...
this.applicationKey = urlParams.get('applicationKey') || 'PUT_YOUR_SDK_KEY_HERE';
// ...

※ When making this sample, I had CORS errors and access problems using my SDK Key, so I used the one from the lab application: 08s53auxt9txz1w6hx2iww1qb

Launch

To serve the sample, run the following command:

yarn start

Unfortunately, the sample does not work correctly and the hint is in the browser's JavaScript console is:

AppSerializer.ts:44 Uncaught (in promise) components must be an array

The Matterport Labs Spatial Planner sample on github ...

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