intersects/index.html at main · hugoassisj/intersects · GitHub

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<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="description"
    content="Interactive line intersection visualization: find where a line through two points meets a desired x-coordinate, with movable constraints.">
  <meta property="og:title" content="Line Intersection — Where do they intersect?">
  <meta property="og:description"
    content="Interactive line intersection visualization: find where a line through two points meets a desired x-coordinate, with movable constraints.">
  <meta property="og:type" content="website">
  <meta name="twitter:card" content="summary">
  <meta name="twitter:title" content="Line Intersection — Where do they intersect?">
  <meta name="twitter:description"
    content="Interactive line intersection visualization: find where a line through two points meets a desired x-coordinate, with movable constraints.">
  <title>Line Intersection: Where do they intersect?</title>
  <link rel="stylesheet" href="styles.css">
  <link rel="preconnect" href="https://fonts.googleapis.com">
  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
  <link
    href="https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&display=swap"
    rel="stylesheet">
  <script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.7.0/p5.min.js"></script>
</head>

<body>
  <main class="app" role="main">
    <div class="top-bar">
      <header class="app-header">
        <h1 class="app-title">Line Intersection</h1>
        <p class="app-tagline">Where does the line meet a given x?</p>
      </header>
      <div class="instructions-bar" role="doc" aria-label="How to use">
        <span class="instructions-text">Drag <strong>P1</strong> or <strong>P2</strong> to move the line; sliders set
          target x and Y range.</span>
        <button type="button" id="export-png-btn" class="btn btn-export">Export PNG</button>
      </div>
    </div>

    <div id="sketch-container" class="sketch-container"
      aria-label="Interactive diagram: line intersection with constraints. Drag the two endpoints or use the sliders to change the target x and constraints.">
    </div>

    <aside class="controls-panel" aria-label="Controls">
      <section class="control-card" aria-labelledby="constraints-heading">
        <div class="control-header">
          <h2 id="constraints-heading" class="control-heading">Constraints</h2>
          <output id="constraints-value" class="control-value" for="constraints-slider" aria-live="polite"></output>
        </div>
        <label for="constraints-slider" class="control-label">Y range (allowed band height)</label>
        <input type="range" id="constraints-slider" class="control-slider" min="1" max="4" step="0.1" value="3"
          aria-valuetext="Constraints">
      </section>
      <section class="control-card" aria-labelledby="desired-x-heading">
        <div class="control-header">
          <h2 id="desired-x-heading" class="control-heading">Target X</h2>
          <output id="desired-x-value" class="control-value" for="desired-x-slider" aria-live="polite"></output>
        </div>
        <label for="desired-x-slider" class="control-label">Vertical line position (within canvas margin)</label>
        <input type="range" id="desired-x-slider" class="control-slider" min="0" max="1000" step="1" value="125"
          aria-valuetext="Desired X">
      </section>
    </aside>
  </main>
  <script src="main.js"></script>
</body>

</html>