Raphael学习笔记(4)--绘图(路径【贝塞尔曲线】)
贝塞尔曲线的基础知识
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其它的什么都不说了,直接上代码:
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"> <head><script type="text/javascript" src="js/raphael.js"></script><script type="text/javascript" src="js/jquery-1.7.2.js"></script> <style type="text/css">.wraper {position: relative;float: left;width: 400px;height: 400px;margin-left: 10px;margin-top: 10px;border: 1px solid orange;} </style><script type="text/javascript">$(document).ready(function(){var raphael_2 = new Raphael('raphael_2',400,400);//绘制曲线的起止点和控制点//绘制2次贝赛尔曲线raphael_2.path('M20,120 L100,10 L180,90');raphael_2.path('M20,120 Q100,10 180,90').attr('stroke','red');//绘制曲线的起止点和控制点//绘制2次贝赛尔曲线(第一个是正常绘制,第二个光滑连接)raphael_2.path('M20,370 L120,160 L200,220 L280,280 L380,70');raphael_2.path('M20,370 Q120,160 200,220 T380,70').attr('stroke','red');var raphael_3 = new Raphael('raphael_3',400,400);//绘制曲线的起止点和控制点//绘制3次贝赛尔曲线raphael_3.path('M20,20 L50,80 L150,160 L180,40');raphael_3.path('M20,20 C50,80 150,160 180,40').attr('stroke','red');//绘制曲线的起止点和控制点//绘制3次贝赛尔曲线raphael_3.path('M240,180 L200,100 L380,20 L350,160');raphael_3.path('M240,180 C200,100 380,20 350,160').attr('stroke','red');//绘制曲线的起止点和控制点//绘制3次贝赛尔曲线(第一个是正常绘制,第二个光滑连接)raphael_3.path('M20,370 L40,270 L100,220 L180,280 L260,340 L320,290 L340,190');raphael_3.path('M20,370 C40,270 100,220 180,280 S320,290 340,190').attr('stroke','red');});</script> </head> <body><div id="raphael_2" src="/img/2012/06/30/1744082355.png">3次贝塞尔的效果
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