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Version: v2

Use modernGraphTool as main

You can host modernGraphTool and CrinGraph together with slight change of code!

This chapter showcases how to dual-host 2 graphtools in 1 domain, using modernGraphTool as main forefront page.

Overview​

There are several ways to host two services on a single domain.

Here, we showcase the classic "folder as subdomain" approach, which is simple and effective for static sites or web apps.

Step-by-Step Guide​

1. Prepare Your Projects​

  • modernGraphTool: Set up the modernGraphTool database and files as described in the other documentation chapters.
  • CrinGraph: Prepare the CrinGraph project files. You can use any variant of CrinGraphs.

2. Organize Your Directory Structure​

Your root folder should contain the main index.html for modernGraphTool.

Create a new folder (e.g., cringraph) inside the root directory, and place all CrinGraph files there.

The cringraph folder should also have its own index.html.

Example structure:

/project-root/
├── data
|   ├── phones          # 'phone' measurements folder
|   |   ├── A8 L.txt      # measurement data
|   |   └── A8 R.txt      # measurement data
|   ├── target          # 'target' measurements folder
|   |   └── Target.txt    # target data
|   └── phone_book.json # List of phones
├── index.html          # modernGraphTool entry point
├── ...other modernGraphTool files...
└── cringraph
    ├── index.html      # CrinGraph entry point
    └── ...other CrinGraph files...

3. Required Changes to CrinGraph​

Since we don't want to manage 2 data folders for each graphtool respectively, We need to update CrinGraph's code to correctly fetch data from parent directory.

Required changes will be made in two files:

  • graphtool.js
  • config.js (and config_hp.js if you have one)

The following examples are based on the squiglink/labs version of CrinGraph.

Tip

Even if you are using a different version of CrinGraph, you should be able to follow the examples below without any problems. However, there may be slight differences in details such as line positions.

graphtool.js​

Open graphtool.js and find the loadFiles function (near the bottom of the file). Edit it as follows:

// Previous
let l = f => d3.text(DIR+f+".txt").catch(()=>null);
let f = p.isTarget ? [l(p.fileName)]
      : d3.merge(LR.map(s =>
            sampnums.map(n => l(p.fileName+" "+s+n))));

// After
// If you're using custom directory for measurements, change the 'phones' and 'target' words to yours.
let l = f => d3.text(DIR+"phones/"+f+".txt").catch(()=>null);
let lt = f => d3.text(DIR+"target/"+f+".txt").catch(()=>null);
let f = p.isTarget ? [lt(p.fileName)]
      : d3.merge(LR.map(s =>
            sampnums.map(n => l(p.fileName+" "+s+n))));

config.js​

Find the DIR variable at the top of config.js and edit it:

// Previous
DIR = "data/",

// After
// '../' means 'parent directory'.
DIR = "../data/",

If you're using Haruto's iteration of CrinGraph (PublicGraphTool / ExtendedGraphTool), you'll also need to repoint the PHONE_BOOK variable in the same file:

// Previous
PHONE_BOOK = "phone_book.json", // Path to phone book JSON file

// After
PHONE_BOOK = "../data/phone_book.json", // Path to phone book JSON file
CDN-mode installs: leave BASE_PATH unset

Because modernGraphTool is served from the root of its (sub)domain in this layout, leave CDN_MODE.BASE_PATH unset (or commented out) in config.js. If you later move mGT into a subfolder, you'll need to set BASE_PATH to match — see the CDN deployment guide for the full explanation.

4. Add Navigation Buttons to Each Tool​

After finishing the code-weaving job above, you should be able to access 2 graphtools via these domains.

  • To access modernGraphTool: https://yourdomain.com/
  • To access CrinGraph: https://yourdomain.com/cringraph/ (Folder name as subdomain)

We can add little buttons so users can easily navigate between these two.

modernGraphTool​

Find the TOPBAR block in config.js and add a LINK_LIST entry. LINK_LIST is an array of { TITLE, URL } objects — you can add more entries later if you want extra navigation buttons.

TOPBAR: {
  LINK_LIST: [
    { TITLE: "Go to CrinGraph", URL: "https://yourdomain.com/cringraph" },
    // or, relative to the mGT root:
    // { TITLE: "Go to CrinGraph", URL: "./cringraph" },
  ],
}

CrinGraph​

Head over to line 250 of config.js for headerLinks array, and add these line:

headerLinks = [
  {
    name: "Head back to modernGraphTool",
    url: "https://yourdomain.com/"
  },
  // or
  {
    name: "Head back to modernGraphTool",
    url: "../"
  },
]

5. Deploying​

Upload your project to your web server, ensuring the folder structure is preserved.

Both tools should now be accessible as described above.

Tip

If you are applying these changes to your squig.link database, the changes might not be shown immediately due to cached files.

You can apply these changes immediately by refreshing the cache. Add ?cachebust to the end of your database address, then reload the page.

e.g) https://example.squig.link/?cachebust