我有一个包含文本对象和矩形对象的组。当缩放组时,我希望矩形对象改变大小,但文本对象保持相同的大小。
有什么方法可以实现这个目标吗?
答案 0 :(得分:4)
数学!救援!
看着小提琴!http://jsfiddle.net/davidtorroija/w64bsnon/2/
var line;
var canvas = this.__canvas = new fabric.Canvas('c');
fabric.Object.prototype.originX = fabric.Object.prototype.originY = 'center';
canvas.on({
'object:scaling': function(p){
console.log('p',p.target.ScaleX )
//p.target._objects[0].scaleX = p.target.scaleX
//p.target._objects[0].scaleY = p.target.scaleY
//p.target.scaleX = 1
//p.target.scaleY = 1
if (p.target.scaleX < 1)
p.target._objects[1].scaleX = 1 + (1 -p.target.scaleX )
else
p.target._objects[1].scaleX = 1 / (p.target.scaleX)
if (p.target.scaleY < 1)
p.target._objects[1].scaleY = 1 + (1 -p.target.scaleY)
else
p.target._objects[1].scaleY = 1 / (p.target.scaleY)
canvas.renderAll()
},
});
var rect = new fabric.Rect({top: 110, left:110, height: 100, width: 100, fill:'#ccc'})
var text = new fabric.IText('pepe',{text: 'pepe',top: 110, left:110, height: 100, width: 100, fill:'#000'})
var group = new fabric.Group([rect,text])
canvas.add(group)
&#13;
<script src="http://fabricjs.com/lib/fabric.js"></script>
<canvas id="c" width="600" height="600"></canvas>
&#13;