如果你想阻止图形变换，可以执行 Konva.Transformer 实例的 stopTransform 方法。
说明：试试变换下面图形，当图形宽度大于 200 时图形将不会再变化。
Konva Stop Transform Demoview raw<!DOCTYPE html>
<html>
<head>
<script src="https://unpkg.com/konva@4.0.18/konva.min.js"></script>
<meta charset="utf-8" />
<title>Konva Stop Transform 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();
stage.add(layer);
var rect = new Konva.Rect({
x: 160,
y: 60,
width: 100,
height: 90,
fill: 'red',
name: 'rect',
stroke: 'black',
draggable: true
});
layer.add(rect);
var tr = new Konva.Transformer();
layer.add(tr);
tr.attachTo(rect);
layer.draw();
tr.on('transform', function() {
var width = rect.width() * rect.scaleX();
if (width > 200) {
tr.stopTransform();
var scaleX = 200 / rect.width();
rect.scaleX(scaleX);
}
});
</script>
</body>
</html>
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