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<!DOCTYPE html>
<html>

<head>
	<script src="https://unpkg.com/konva@4.0.18/konva.min.js">
	</script>
	<meta charset="utf-8" />
	<title>Konva Clipping Function Demo</title>
	<style>
		body {
			margin: 0;
			padding: 0;
			overflow: hidden;
			background-color: #f0f0f0;
		}
	</style>
</head>

<body>
	<div id="container"></div>
	<script>
		var width = window.innerWidth;
      var height = window.innerHeight;

      var stage = new Konva.Stage({
        container: 'container',
        width: width,
        height: height
      });

      var layer = new Konva.Layer();

      var group = new Konva.Group({
        // clipFunc: function(ctx) {
        //   ctx.arc(250, 120, 50, 0, Math.PI * 2, false);
        //   ctx.arc(150, 120, 60, 0, Math.PI * 2, false);
        // },
        draggable: true
      });

      var blueBlob = new Konva.Line({
        points: [73, 140, 340, 23, 500, 109, 300, 170],
        stroke: 'blue',
        strokeWidth: 10,
        fill: '#aaf',
        tension: 0.8,
        closed: true
      });

      var redBlob = new Konva.Line({
        points: [73, 140, 340, 23, 500, 109],
        stroke: 'red',
        strokeWidth: 10,
        fill: '#faa',
        tension: 1.2,
        scale: { x: 0.5, y: 0.5 },
        x: 100,
        y: 50,
        closed: true
      });

      group.add(blueBlob);
      group.add(redBlob);
      layer.add(group);

      // add the layer to the stage
      stage.add(layer);
	</script>
</body>

</html>