使用Konva在剪辑区域内绘制内容，我们可以设置任何容器的clip 属性，包括组，图层或舞台。剪切区域由x，y，宽度和高度定义。在本教程中，我们将在应用于组的矩形剪裁区域内绘制不规则图形。

对于更复杂的情况，请看裁剪更多功能。更多

Konva Simple Clipping Demo 点击查看

 <!DOCTYPE html>
<html>
<head>
<script src="https://cdn.rawgit.com/konvajs/konva/1.4.0/konva.min.js"></script>
<meta charset="utf-8">
<title>Konva Simple Clipping 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({
    clip: {
        x : 100,
        y : 40,
        width : 200,
        height : 100
    },
    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>

简单-裁剪

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