Issue with konvaJS when trying to simultaneously resize, drag, and apply filters to an image

Looking for help with resizing, dragging, and filtering images using Konvajs 2d canvas library? If the images are not resizing properly after applying a filter, can someone assist me?

Note: Please be aware that when using Google image URLs, there may be cross-origin domain errors. It is recommended to use local images and test in Firefox browser.

<!DOCTYPE html>
<html>
<head>
  <script src="https://cdn.rawgit.com/konvajs/konva/1.7.4/konva.min.js"></script>
  <meta charset="utf-8">
  <title>Konva Image Resize Demo</title>
  <style>
    body {
      margin: 0;
      padding: 0;
      overflow: hidden;
      background-color: #F0F0F0;
    }
  </style>
</head>
<body>
  <div id="container"></div>
  <script>
    Our Konva Image Manipulation Script goes here...
  </script>
</body>
</html>

Answer №1

I have converted your filter into a function and utilized it on image load, as well as on drag-move and drag-end events. I am considering whether there might be a more efficient way to handle performance, such as caching the image with the filter applied to avoid the overhead of re-applying the filter.

It's worth noting that in the SO snippet, you will encounter a cross-domain warning for the filter; however, the drag-sizing functionality now works properly. If you use a local image, the filter remains active during the sizing process.

<!DOCTYPE html>
<html>
<head>
  <script src="https://cdn.rawgit.com/konvajs/konva/1.7.4/konva.min.js"></script>
  <meta charset="utf-8">
</head>
<body>
  <div id="container"></div>
  <script>
    // Your JavaScript code goes here
  </script>
</body>
</html>

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