随笔分类 - 数据可视化
包括canvas
摘要：<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>svg</title> <script
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摘要：<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>svg</title> <script
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摘要：<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>svg</title> <script
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摘要：l Canvas绘制钟表 绘制钟表 3.1.1. 效果 功能实现 l 绘制表盘 // 1 绘制表盘 cxt.beginPath(); cxt.arc(250,250,r,0,Math.PI*2); cxt.closePath(); cxt.fillStyle='white'; cxt.fill();
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摘要：1.创建一个画布，获取canvas节点 <canvas id="c" width="500" height="500"></canvas>//创建canvas节点 <script type="text/javascript"> var canvas = document.getElementById
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