1.paint.setStyle(Paint.Style.STROKE) // radius="100dp" // interRadius="40dp" // linearWidth="10dp" // stokenWidth="40dp" mPaint=new Paint(); mPaint.setStyle(Paint.Style.STROKE); mPaint.setStrokeWidth(mStokenWidth);…
在学习android中图形图像处理技术这部分内容时,对绘制圆弧函数canvas.drawArc()的用法.参数含义及画图原理很是不理解,在网上搜索了一些,加上自己的理解,在此做个小总结,作为学习过程中的一个小脚印: 一. 代码及相应的运行结果 1.填充圆弧但不含圆心(注意:代码变动部分加粗红色给出,下同) (1)代码 /***********配置画笔*************/ Paint paint=new Paint(); //采用默认设置创建一个画笔 paint.setAntiAlias(…
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title></title> <style> body { height: 1000px; } </style> </head> <body> <div style="position: relative; width: 300p…
Canvas is great for high performance graphics rendering but by default the results look blocky on phones tablets and laptops with high pixel density or Retina displays. By using canvas width and height attributes and style props we can use window.dev…
先看看异常: 一眼看去就知道说的是方法找不到错误 后面发现是系统版本过低,4.0的系统找不到5.0后添加的方法报的错. 修改后完美解决…
折线图之后又来饼状图啦~\(≧▽≦)/~啦啦啦 <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <canvas id="cv"></canvas> <script> v…
前段时间学习了用canvas绘制折现图,且当画布变换大小,折现图会随之变化,现附上代码 <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <canvas id="cv"></canvas&…
<!DOCTYPE html> <html lang='zh-cn'> <head> <title>Insert you title</title> <meta name='description' content='this is my page'> <meta name='keywords' content='keyword1,keyword2,keyword3'> <meta http-equiv="…
<!DOCTYPE html> <html lang='zh-cn'> <head> <title>Insert you title</title> <meta name='description' content='this is my page'> <meta name='keywords' content='keyword1,keyword2,keyword3'> <meta http-equiv="…
var canvas=document.getElementById("canvas"); var ctx=canvas.getContext("2d"); //脸 ctx.beginPath(); ctx.moveTo(205,410); ctx.lineTo(307,550); ctx.lineTo(334,574); ctx.lineTo(485,640); ctx.lineTo(530,620); ctx.lineTo(645,530); ctx.lineT…