我正在尝试加载具有图像对象的json对象。图像对象具有基本64位图像数据作为背景。但是我无法理解loadFromJSON方法。
代码:
var jsonDataSet = '{"objects":[{"type":"image","originX":"left","originY":"top","left":0,"top":0,"width":700,"height":600,"fill":"rgb(0,0,0)","overlayFill":null,"stroke":null,"strokeWidth":1,"strokeDashArray":null,"strokeLineCap":"butt","strokeLineJoin":"miter","strokeMiterLimit":10,"scaleX":1,"scaleY":1,"angle":0,"flipX":false,"flipY":false,"opacity":1,"selectable":false,"hasControls":true,"hasBorders":true,"hasRotatingPoint":true,"transparentCorners":true,"perPixelTargetFind":false,"shadow":null,"visible":true,"clipTo":null,"src":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAn4AAAFPCAYAAADTHsP1AAAgAElEQ…Lv/vuU1wVsyvXK+Kks1f6gffSCThZ1km3u6NFklCnFes//AbZzi+iGF3/7AAAAAElFTkSuQmCC","filters":[]}],"background":""}';
canvas.loadFromJSON (jsonDataSet);
canvas.renderAll();
它显示为
"Error loading data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAn4AAAFPCAYAAADTHsP1AAAgAElEQ…Lv/vuU1wVsyvXK+Kks1f6gffSCThZ1km3u6NFklCnFes//AbZzi+iGF3/7AAAAAElFTkSuQmCC "
错误 最佳答案
如果您使用最新的fabric.js版本,那就是一个错误。我已经通过请求请求800修复了该问题:https://github.com/kangax/fabric.js/pull/800。
顺便说一句,您上面的代码的base64 dataURL不正确-它有三个点(lEQ…Lv/vuU)。
可能是复制带来的副作用。