der();var canvas = viewer.scene.canvas;let dataurl = DataURL("image/png");
//1.上传至服务器,如果不需要,可直接注释掉var arr = dataurl.split(',');var mime = arr[0].match(/:(.*?);/)[1];var bstr = atob(arr[1]);var n = bstr.length;var u8arr = new Uint8Array(n);while(n--){u8arr[n] = bstr.charCodeAt(n);}var obj = new Blob([u8arr], {type:mime});var fd = new FormData();fd.append("upfile", obj,"image.png");$.ajax({url: "/img",type: "POST",processData: false,contentType: false,data: fd,success: function (data) {}});//2.保存图片到本地(function(t){var dlLink = t || ateElement("a");if(!t){dlLink.id='dlLink';dlLink.download = 'res';document.body.appendChild(dlLink);}dlLink.href = dataurl;dlLink.click();})(document.querySelector("#dlLink"));
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