createRadialGradient

In this example below you will see how to do a createRadialGradient with some HTML / CSS and Javascript

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This awesome code was written by qingmingsang, you can see more from this user in the personal repository.
You can find the original code on Codepen.io
Copyright qingmingsang ©
  • HTML
  • CSS
  • JavaScript
    		<canvas id="canvas"></canvas>

/*Downloaded from https://www.codeseek.co/qingmingsang/createradialgradient-pyywMJ */
    


/*Downloaded from https://www.codeseek.co/qingmingsang/createradialgradient-pyywMJ */
      var ctx = document.getElementById('canvas').getContext('2d');

  // 创建渐变
  var radgrad = ctx.createRadialGradient(45,45,10,52,50,30);
  radgrad.addColorStop(0, '#A7D30C');
  radgrad.addColorStop(0.9, '#019F62');
  radgrad.addColorStop(1, 'rgba(1,159,98,0)');
  
  var radgrad2 = ctx.createRadialGradient(105,105,20,112,120,50);
  radgrad2.addColorStop(0, '#FF5F98');
  radgrad2.addColorStop(0.75, '#FF0188');
  radgrad2.addColorStop(1, 'rgba(255,1,136,0)');

  var radgrad3 = ctx.createRadialGradient(95,15,15,102,20,40);
  radgrad3.addColorStop(0, '#00C9FF');
  radgrad3.addColorStop(0.8, '#00B5E2');
  radgrad3.addColorStop(1, 'rgba(0,201,255,0)');

  var radgrad4 = ctx.createRadialGradient(0,150,50,0,140,90);
  radgrad4.addColorStop(0, '#F4F201');
  radgrad4.addColorStop(0.8, '#E4C700');
  radgrad4.addColorStop(1, 'rgba(228,199,0,0)');
  
  // 画图形
  ctx.fillStyle = radgrad4;
  ctx.fillRect(0,0,150,150);
  ctx.fillStyle = radgrad3;
  ctx.fillRect(0,0,150,150);
  ctx.fillStyle = radgrad2;
  ctx.fillRect(0,0,150,150);
  ctx.fillStyle = radgrad;
  ctx.fillRect(0,0,150,150);

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