2020
10-08
10-08
JavaScript图像放大镜效果实现方法详解
1.基本四瓣花型图案根据四瓣花卉线的参数方程：t=r*(1+sin(12*θ)/5)*(0.5+sin(4*θ)/2);x=t*cos(θ));y=t*sin(θ));编写如下的HTML文件。<!DOCTYPEhtml><head><title>基本的四瓣花型图案</title><scripttype="text/javascript">functiondraw(id){varcanvas=document.getElementById(id);if(canvas==null)returnfalse;varcontext=canvas.getContext('2d');context.fillStyle="#EEEEFF"...
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