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function Copy()
    canvas.getActiveObject().clone(function(cloned)
        _clipboard = cloned;
  function Delete() 
    canvas.getActiveObject().remove();
        function Paste() {
            _clipboard.clone(function(clonedObj) {
                canvas.discardActiveObject();
                clonedObj.set({
                    left: clonedObj.left + 10,
                    top: clonedObj.top + 10,
                    evented: true,
                if (clonedObj.type === 'activeSelection') {
                    clonedObj.canvas = canvas;
                    clonedObj.forEachObject(function(obj) {
                        canvas.add(obj);
                    clonedObj.setCoords();
                } else {
                    canvas.add(clonedObj);
                _clipboard.top += 10;
                _clipboard.left += 10;
                canvas.setActiveObject(clonedObj);
                canvas.requestRenderAll();
var canvas = this.__canvas = new fabric.Canvas('c');
var rect = new fabric.Rect({
    left: 100,
    top: 50,
    fill: '#D81B60',
    width: 100,
    height: 100,
    strokeWidth: 2,
    stroke: "#880E4F",
    rx: 10,
    ry: 10,
    angle: 45,
    hasControls: true
canvas.add(rect);

<div>
    <button type="button" onclick="Copy()">copy</button>
    <button type="button" onclick="Paste()">paste</button>
    <button type="button" onclick="Delete()">delete</button>
  <div style="display:flex;flex-direction:row;">
      <canvas id="c" width="1300" height="1300"></canvas>
  <script src="https://unpkg.com/fabric@4.6.0/dist/fabric.js"></script>

function Delete() {
  var active = canvas.getActiveObject()
  if (active) {
    canvas.remove(active)
    if (active.type == "activeSelection") {
      active.getObjects().forEach(x => canvas.remove(x))
      canvas.discardActiveObject().renderAll()
var canvas = this.__canvas = new fabric.Canvas('c');
var rect = new fabric.Rect({
  left: 100,
  top: 50,
  fill: '#D81B60',
  width: 100,
  height: 100,
  strokeWidth: 2,
  stroke: "#880E4F",
  rx: 10,
  ry: 10,
  angle: 45,
  hasControls: true
canvas.add(rect);
var rect2 = new fabric.Rect({
  left: 160,
  top: 10,
  fill: '#D81B60',
  width: 60,
  height: 60,
  strokeWidth: 2,
  stroke: "#880E4F",
  hasControls: true
canvas.add(rect2);

<div>
  <button type="button" onclick="Delete()">delete</button>
<div style="display:flex;flex-direction:row;">

问 删除fabric.js中选定的对象

回答 1

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