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d3plus with Svelte: Uncaught TypeError: Cannot read property 'document' of undefined

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The Goal

I'm trying to implement this…

<!doctype html>

<html>
  <head>
    <meta charset="utf-8">
    <script src="https://d3plus.org/js/d3.js"></script>
    <script src="https://d3plus.org/js/d3plus.js"></script>
    <style>
      html {
        height: 100%;
      }
      
      body {
        margin: 0;
        height: 100%;
        background: linear-gradient(to top, #ddfdff, #6DD5FA, #2980B9);
      }

      svg {
        font-family: "Helvetica", "Arial", sans-serif;
        height: 100%;
        width: 100%;
        background: transparent;
      }

      .type {
        fill: #888;
        text-anchor: middle;
      }

      .shape {
        fill: red;
        stroke: black;
      }

      .invis {
        fill: transparent;
        stroke: transparent;
      }

      .title {
        fill: #ffebeb;
      }
    </style>
  </head>
  <body>
    <svg>
      <path id="Union" fill-rule="evenodd" clip-rule="evenodd" d="M584.924 352C566.379 596.253 442.233 717.371 312.762 721.625C314.849 722.912 315.945 724.404 315.439 725.873C314.85 727.582 313.363 728.819 311.349 729.634C313.835 731.14 315.947 732.306 317.185 732.541C324.33 733.901 329.242 736.83 328.72 740.738C326.639 756.297 285.436 758.859 279.246 744.483C277.43 740.263 282.545 736.546 290.185 734.22C291.876 733.706 291.976 731.183 291.936 728.476C288.699 727.054 286.268 725.043 285.663 722.579C285.504 721.933 285.607 721.353 285.928 720.839C157.97 709.163 31.5609 584.211 2.92421 352C-23.4665 138 133.209 0 293.924 0C454.639 0 600.034 153 584.924 352Z" fill="#C80E0E"/>

      <!-- 'd3plus' uses this circle as a text mask. -->
      <!-- Honestly, I don't fully understand how this works; -->
      <!-- Changing the circle's radius yields strange effects. -->
      <circle class="shape invis" r="15px" cx="0px" cy="0px"></circle>

      <text id="circleResize" class="wrap title" x="0px" y="110px" font-size="2rem">
        Why is it so difficult to center text in a shape like this while specifying curved outer bounds?
      </text>

    </svg>

    <script>
      // Wrap text in a circle, and size the text to fit.
      d3plus.textwrap()
        .container(d3.select("#circleResize"))
        .width(620)
        .height(1000)
        .resize(true)
        .draw();
    </script>
  </body>
</html>

…in Svelte.

The Problem

I can't seem to get d3plus to work with Svelte.

First I tried using <svelte:head> to house the <script src="https://d3plus.org… lines. I don't recall what happened when I tried that, but my hunch is that <svelte:head> only works with CSS, or other files whose content doesn't need to be parsed by Svelte. ¯_(ツ)_/¯?

At any rate, my next approach is represented (in part) below. I first saved d3.js and d3plus.js in src, then, as shown, I import the symbols directly.

In this second scenario, though, I keep getting this console error:

Uncaught TypeError: Cannot read property 'document' of undefined
    at d3.js:8
    at d3.js:9553
    at createCommonjsModule (index.mjs:1328)
    at index.mjs:1328
    at main.js:8

Presumably what's happening here is that the d3 source is getting run before the app's had a chance to load, and so document remains undefined? Regardless, I'm stuck!

Here's the (broken) code, fwiw:

<script>
  import d3 from './d3.js';
  import d3plus from './d3plus.js'

  d3plus.textwrap()
    .container(d3.select("#circleResize"))
    .resize(true)
    .draw();

</script>

<style>
  svg {
    font-family: "Helvetica", "Arial", sans-serif;
    height: 100%;
    width: 100%;
    background: transparent;
  }

  .type {
    fill: #888;
    text-anchor: middle;
  }

  .shape {
    fill: red;
    stroke: black;
  }

  .invis {
    /* Fill will be transparent in final outlay */
    fill: #10ef3394;
    stroke: transparent;
    stroke-width: .1rem;
  }

  .title {
    fill: #ffebeb;
  }
</style>

<svg>
  <path id="Union" fill-rule="evenodd" clip-rule="evenodd" d="M584.924 352C566.379 596.253 442.233 717.371 312.762 721.625C314.849 722.912 315.945 724.404 315.439 725.873C314.85 727.582 313.363 728.819 311.349 729.634C313.835 731.14 315.947 732.306 317.185 732.541C324.33 733.901 329.242 736.83 328.72 740.738C326.639 756.297 285.436 758.859 279.246 744.483C277.43 740.263 282.545 736.546 290.185 734.22C291.876 733.706 291.976 731.183 291.936 728.476C288.699 727.054 286.268 725.043 285.663 722.579C285.504 721.933 285.607 721.353 285.928 720.839C157.97 709.163 31.5609 584.211 2.92421 352C-23.4665 138 133.209 0 293.924 0C454.639 0 600.034 153 584.924 352Z" fill="#C80E0E"/>

  <circle class="shape invis" r="15px" cx="0px" cy="0px"></circle>

  <text id="circleResize" class="wrap title" x="0px" y="110px" font-size="2rem">
    Why is it so difficult to center text in a shape like this while specifying curved outer bounds?
  </text>

</svg>

How can I get this working in Svelte???

d3.js svelte d3plus
Original Q&A
1

There are 1 best solutions below

0
clozach On

Working code

(With to @CD.. here on S.O., and @primos on Discord for their help!)

The range slider and bound variables are just a bit of reactive fun to test moving the text and balloon together.

/public/index.html

<!doctype html>
<html>
<head>
  <meta charset='utf8'>
  <meta name='viewport' content='width=device-width'>

  <title>Svelte app</title>

  <link rel='icon' type='image/png' href='/favicon.png'>
  <link rel='stylesheet' href='/global.css'>
  <link rel='stylesheet' href='/bundle.css'>

  <script src="https://d3plus.org/js/d3.js"></script>     <!--  -->
  <script src="https://d3plus.org/js/d3plus.js"></script> <!--  -->

  <script defer src='/bundle.js'></script>
</head>

<body>
</body>
</html>

App.svelte

<script>
  import { onMount } from 'svelte';               // 

  onMount(() => {                                 // 
    d3plus.textwrap()
      .container(d3.select("#circleResize"))
      .resize(true)
      .draw();
  });

  export let name;
  let i = 0;
  const minX = 293;
  let windowWidth;
  let skyHeight;
</script>

<svelte:window bind:innerWidth={windowWidth}/>

<style>
  svg {
    font-family: "Helvetica", "Arial", sans-serif;
    height: 90%;
    width: 100%;
    background: transparent;
  }

  .type {
    fill: #888;
    text-anchor: middle;
  }

  .shape {
    fill: red;
    stroke: black;
  }

  .invis {
    fill: transparent;
    stroke: transparent;
    stroke-width: .1rem;
  }

  .title {
    fill: #ffebeb;
  }
</style>

<label>
    <input type="range" bind:value={i} max={windowWidth - (2 * minX)}>
</label>

<div>{i}</div>

<svg>
  <path id="Union" fill-rule="evenodd" clip-rule="evenodd" transform="translate({i},0)" d="M584.924 352C566.379 596.253 442.233 717.371 312.762 721.625C314.849 722.912 315.945 724.404 315.439 725.873C314.85 727.582 313.363 728.819 311.349 729.634C313.835 731.14 315.947 732.306 317.185 732.541C324.33 733.901 329.242 736.83 328.72 740.738C326.639 756.297 285.436 758.859 279.246 744.483C277.43 740.263 282.545 736.546 290.185 734.22C291.876 733.706 291.976 731.183 291.936 728.476C288.699 727.054 286.268 725.043 285.663 722.579C285.504 721.933 285.607 721.353 285.928 720.839C157.97 709.163 31.5609 584.211 2.92421 352C-23.4665 138 133.209 0 293.924 0C454.639 0 600.034 153 584.924 352Z" fill="#C80E0E"/>

  <circle class="shape invis" r="280px" cx="{minX}" cy="300px"></circle>

  <text id="circleResize" class="wrap title" x="0px" y="110px" font-size="2rem" transform="translate({i},0)">
    Why is it so difficult to center text in a shape like this while specifying curved outer bounds?
  </text>

</svg>

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