The parameters `fox.x` and `fov.y` only take effect the first time they are modified. #34

huangweimin1 · 2025-01-19T02:46:34Z

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>FisheyeGl Demo</title>
  <script src="./dist/fisheyegl.js"></script>
  <style>
    body { font-family: Arial, sans-serif; }
    .container { max-width: 800px; margin: 0 auto; padding: 20px; }
    canvas { border: 1px solid #ccc; margin-bottom: 20px; }
    dl { margin-bottom: 20px; }
    dt { font-weight: bold; }
    dd { margin-bottom: 10px; }
  </style>
</head>
<body>

  <div class="container">
    <h1>Lens Distortion Removal</h1>
    <p>Use the sliders to adjust lens distortion parameters and apply fisheye effect removal on the image below.</p>

    <div>
      <canvas id="canvas" width="800" height="600"></canvas>
    </div>

    <div>
      <dl>
        <dt>Fx</dt>
        <dd>
          <input id="Fx" type="range" min="0.0" max="2.0" value="1.0" step="0.01"/>
        </dd>
        <dt>Fy</dt>
        <dd>
          <input id="Fy" type="range" min="0.0" max="2.0" value="1.0" step="0.01"/>
        </dd>
        <dt>a</dt>
        <dd>
          <input id="a" type="range" min="0.0" max="4.0" value="1.0" step="0.001"/>
        </dd>
        <dt>b</dt>
        <dd>
          <input id="b" type="range" min="0.0" max="4.0" value="1.0" step="0.001"/>
        </dd>
        <dt>scale</dt>
        <dd>
          <input id="scale" type="range" min="0.0" max="20.0" value="1.0" step="0.001"/>
        </dd>
        <dt>fov x</dt>
        <dd><input id="fovx" type="range" min="0.0" max="2.0" value="1.0" step="0.001"/></dd>
        <dt>fov y</dt>
        <dd><input id="fovy" type="range" min="0.0" max="2.0" value="1.0" step="0.001"/></dd>
      </dl>
    </div>
  </div>
<div>

</div>
  <script>

    // Initialize FisheyeGl with an image
    var distorter = FisheyeGl({
      image: './example/images/grid.jpg', // Make sure this image exists or replace it with a valid one
      selector: '#canvas'// Attach the canvas
    });

    // Update the distortion parameters when sliders change
    function readSliders() {
      distorter.lens.a = parseFloat(document.getElementById("a").value);
      distorter.lens.b = parseFloat(document.getElementById("b").value);
      distorter.lens.Fx = parseFloat(document.getElementById("Fx").value);
      distorter.lens.Fy = parseFloat(document.getElementById("Fy").value);
      distorter.lens.scale = parseFloat(document.getElementById("scale").value);
      distorter.fov.x = parseFloat(document.getElementById("fovx").value);
      distorter.fov.y = parseFloat(document.getElementById("fovy").value);
    }

    // Listen to input changes and update the distortion
    document.querySelectorAll("input[type=range]").forEach(function(input) {
      input.addEventListener("input", function() {
        readSliders();  // Read the slider values
        distorter.run(); // Apply the distortion with updated parameters
      });
    });

    // Initial run to display the distortion on the canvas
    distorter.run();
  </script>

</body>
</html>

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The parameters `fox.x` and `fov.y` only take effect the first time they are modified. #34

The parameters `fox.x` and `fov.y` only take effect the first time they are modified. #34

huangweimin1 commented Jan 19, 2025 •

edited

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The parameters fox.x and fov.y only take effect the first time they are modified. #34

The parameters fox.x and fov.y only take effect the first time they are modified. #34

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huangweimin1 commented Jan 19, 2025 • edited Loading

The parameters `fox.x` and `fov.y` only take effect the first time they are modified. #34

The parameters `fox.x` and `fov.y` only take effect the first time they are modified. #34

huangweimin1 commented Jan 19, 2025 •

edited

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