问Canvas toDataUrl在最新的safari中未返回正确的图像EN具体效果当页面向下滑动15%的时候回在页面的右下角出现这个按钮，并且具有Canvas绘制进度环的效果。 大致原理就是根据滚动距离和文档高度排定滚动百分比然后绘制画布，百分比数字是用data储存并使用css的 content属性实现。 Canvas进度环返回
二、完整实现代码 DrawingTools =(function(){ //公共方法 var getDom=function(id){return document.getElementById(id)}; var isNull=function(s){return s==undefined||typeof(s)=='undefined'||s==null||s=='null'||s==''||s.length<1}; var hideDefRM=function(){document.oncontextmenu=func...
cuPoint:null,//当前临时坐标点,确定一个坐标点后重新构建 cuAngle:null,//当前箭头角度 vertex:[],//坐标点 } /**获取当前坐标点*/ var getCuPoint=function(i){ return ctrlConfig.cuPoint[i]; } /**设置当前坐标点*/ var setCuPoint=function(p,i){ return ctrlConfig.cuPoint[i]=p; } /**...
Open in FigJamAbout Comments 1 More like this Recopilar y Analizar Información Cualitativa Persona Workshop The Digital Marketing Canvas A Post 1 comment Francisco Reynaud@reynaud · 2 months ago Gracias! This is a Figma Community file. Community is a space for Figma users to share things ...
/*! jQuery v1.7.2 jquery.com | jquery.org/license */ (function(a,b){function cy(a){return f.isWindow(a)?a:a.nodeType===9?a.defaultView||a.parentWindow:!1}function cu(a){if(!cj[a]){var b=c.body,d=f("<"+a+">").appendTo(b),e=d.css("display");d.remove();if(e=...
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAASwAAACWCAYAAABkW7XSAAAGWElEQVR4Xu3ZTavtAxzF8XVnQiYGJAMpeQEGylBSSlJGJmaKUiKJoYcywoyJ8g5kIoW3QCJlxFCU5NmMrv4pMtm71arT/ZzR7dyz12+fzzl92+1zKT4IECBwQQQuXZDn6WkSIEAgguWXgACBCyNwarCeSPJWkj9O/A7vSfJdks9OfJwvJ0CAwD8CpwbriyR3JvnlRMPXk7yf5IMT...
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cvs.width=512;// 设置canvas的宽度cvs.height=480;// 设置canvas的高度// cvs.style = 'border:1px solid #000;'; // 设置canvas样式document.body.appendChild(cvs);// 将新建的canvas渲染到页面// console.log(ctx);// 准备背景图片varbgReady =false;varbgImg =newImage(); ...
canvasdocumentdcanvaswidthctxcanvasctxctxdctxddctxdctxctxfillStylectxrrCuwritePathPathConstantsPathdesktopDirpromiseFilewritePathrresultpromiseconsole},()=>{console.log("failure writing file");},);};r.readAsArrayBuffer(b);};}canvas.toBlob(blobCallback("passThisString"),"image/vnd.microsoft.icon","...
(asyncfunction(){console.log("starting");letImage=require("canvas").Image;letcreateCanvas=require("canvas").createCanvas;letimg=awaitnewPromise((resolve,reject)=>{letimg=newImage();img.onerror=reject;img.onload=resolve;img.src="data:image/webp;base64,UklGRvYRAABXRUJQVlA4IOoRAAAQgQCdASpAAfA...