Using the XCSSMatrix Library to Modify a Matrix Transform

In this example below you will see how to do a Using the XCSSMatrix Library to Modify a Matrix Transform with some HTML / CSS and Javascript

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This awesome code was written by 1Marc, you can see more from this user in the personal repository.
You can find the original code on Codepen.io
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  • HTML
  • CSS
  • JavaScript
<!DOCTYPE html>
<html lang="en" >

<head>
  <meta charset="UTF-8">
  <title>Using the XCSSMatrix Library to Modify a Matrix Transform</title>
  
  
  
      <link rel="stylesheet" href="css/style.css">

  
</head>

<body>

  <button id="reset">Reset</button>

<svg width="100%" height="100%" xmlns="http://www.w3.org/2000/svg">
  <title>HTML5 Logo</title>
  <g id="target" class="transition">
    <polygon fill="#E44D26" points="107.644,470.877 74.633,100.62 437.367,100.62 404.321,470.819 255.778,512 			"/>
    <polygon fill="#F16529" points="256,480.523 376.03,447.246 404.27,130.894 256,130.894 			"/>
    <polygon fill="#EBEBEB" points="256,268.217 195.91,268.217 191.76,221.716 256,221.716 256,176.305 255.843,176.305 142.132,176.305 143.219,188.488 154.38,313.627 256,313.627"/>
    <polygon fill="#EBEBEB" points="256,386.153 255.801,386.206 205.227,372.55 201.994,336.333 177.419,336.333 156.409,336.333 162.771,407.634 255.791,433.457 256,433.399"/>
    <path d="M108.382,0h23.077v22.8h21.11V0h23.078v69.044H152.57v-23.12h-21.11v23.12h-23.077V0z"/>
    <path d="M205.994,22.896h-20.316V0h63.72v22.896h-20.325v46.148h-23.078V22.896z"/>
    <path d="M259.511,0h24.063l14.802,24.26L313.163,0h24.072v69.044h-22.982V34.822l-15.877,24.549h-0.397l-15.888-24.549v34.222h-22.58V0z"/>
    <path d="M348.72,0h23.084v46.222h32.453v22.822H348.72V0z"/>
    <polygon fill="#FFFFFF" points="255.843,268.217 255.843,313.627 311.761,313.627 306.49,372.521 255.843,386.191 255.843,433.435 348.937,407.634 349.62,399.962 360.291,280.411 361.399,268.217 349.162,268.217"/>
    <polygon fill="#FFFFFF" points="255.843,176.305 255.843,204.509 255.843,221.605 255.843,221.716 365.385,221.716 365.385,221.716 365.531,221.716 366.442,211.509 368.511,188.488 369.597,176.305"/>
  </g>
</svg>
  <script src='https://jfsiii.github.io/XCSSMatrix/dist/browserify/XCSSMatrix.js'></script>

  

    <script  src="js/index.js"></script>




</body>

</html>

/*Downloaded from https://www.codeseek.co/1Marc/using-the-xcssmatrix-library-to-modify-a-matrix-transform-BdAvt */
svg {
  position: absolute;
  top:0;
  bottom:0;
  left:0;
  right:0;
  z-index: -1;
}

button {
  padding: 10px;
  font-size: 16px;
}

/*Downloaded from https://www.codeseek.co/1Marc/using-the-xcssmatrix-library-to-modify-a-matrix-transform-BdAvt */
// included script
// https://jfsiii.github.io/XCSSMatrix/dist/browserify/XCSSMatrix.js
var targetEl = document.getElementById('target'),
  resetButton = document.getElementById('reset'),
  transformPropertyJS = 'webkitTransform',
  matrixString = targetEl.style[transformPropertyJS] || '',
  transformedMatrix = new XCSSMatrix(matrixString),
  identityMatrixString = new XCSSMatrix().toString(),
  positionX = 0, 
  positionY = 0,
  direction = 'right';

resetButton.addEventListener('click', function(){ 
  transformedMatrix = new XCSSMatrix();
  targetEl.style[transformPropertyJS] = identityMatrixString;
});

requestAnimationFrame(drawNewMatrix);

function drawNewMatrix() {
  requestAnimationFrame(drawNewMatrix);
  
  // get the transformation from the element
  // var transformedMatrixString = targetEl.style[transformPropertyJS];

  // create a matrix object with the state from the element
  // transformedMatrix.setMatrixValue(transformedMatrixString);
  
  // update the matrix however you wish
  if (positionX > 200) {
    direction = 'left';
  }
  
  if (positionX < 0) {
    direction = 'right';
  }
  
  transformedMatrix = transformedMatrix.rotate(5, 2);
  
  if (direction == 'right') {
    transformedMatrix = transformedMatrix.translate(1, 5);
    positionX += 1;
  } else {
    transformedMatrix = transformedMatrix.translate(-1,-5);
    positionX -= 1;
  }
  
  // apply your changes to the element
  targetEl.style[transformPropertyJS] = transformedMatrix.toString();
}

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