【成图】
【代码】
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<head><title>铁元素图标Draft1</title><style type="text/css">.centerlize{margin:0 auto;width:1200px;}</style></head><body οnlοad="init();"><div class="centerlize"><canvas id="myCanvas" width="12px" height="12px" style="border:1px dotted black;">如果看到这段文字说您的浏览器尚不支持HTML5 Canvas，请更换浏览器再试.</canvas></div></body>
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<script type="text/javascript">
<!--
/*****************************************************************
* 将全体代码(从<!DOCTYPE到script>)拷贝下来，粘贴到文本编辑器中，
* 另存为.html文件，再用chrome浏览器打开，就能看到实现效果。
******************************************************************/// canvas的绘图环境
var ctx;// 高宽
const WIDTH=512;
const HEIGHT=512;// 舞台对象
var stage;//-------------------------------
// 初始化
//-------------------------------
function init(){// 获得canvas对象var canvas=document.getElementById('myCanvas'); canvas.width=WIDTH;canvas.height=HEIGHT;// 初始化canvas的绘图环境ctx=canvas.getContext('2d'); ctx.translate(WIDTH/2,HEIGHT/2);// 原点平移// 准备stage=new Stage(); stage.init();// 开幕animate();
}// 播放动画
function animate(){ stage.update(); stage.paintBg(ctx);stage.paintFg(ctx); // 循环if(true){//sleep(100);window.requestAnimationFrame(animate); }
}// 舞台类
function Stage(){// 初始化this.init=function(){}// 更新this.update=function(){ }// 画背景this.paintBg=function(ctx){ctx.clearRect(-WIDTH/2,-HEIGHT/2,WIDTH,HEIGHT);// 清屏 }// 画前景this.paintFg=function(ctx){// 底色ctx.save();ctx.fillStyle = "white";//"rgb(0,1,22)";ctx.fillRect(-WIDTH/2,-HEIGHT/2,WIDTH,HEIGHT);ctx.restore();const R=210;//基准尺寸// #1ctx.save();ctx.shadowOffsetX=4; ctx.shadowOffsetY=4; ctx.shadowColor="lightgrey";ctx.shadowBlur=4;var r=R*1.00;var w=2*r;var h=2*r;ctx.fillStyle="black";drawRoundRect(ctx,0,0,w,h,r/6);ctx.fill();ctx.restore();// #2ctx.save();var r=R*0.99;var w=2*r;var h=2*r;var gnt1=ctx.createLinearGradient(0,-r,0,r);gnt1.addColorStop(0,"rgb(204,204,204)");gnt1.addColorStop(1,"rgb(76,76,76)");ctx.fillStyle=gnt1;drawRoundRect(ctx,0,0,w,h,r/6);ctx.fill();ctx.restore();// #3ctx.save();var r=R*0.98;var a=createPt(-r,-r);var angle=0;var l=r/6;var a1=createPt(a.x+l*Math.cos(angle),a.y+l*Math.sin(angle));angle=Math.PI/2;l=r/6;var a2=createPt(a.x+l*Math.cos(angle),a.y+l*Math.sin(angle));var b=createPt(-r,r);angle=-Math.PI/2;l=r/6;var b1=createPt(b.x+l*Math.cos(angle),b.y+l*Math.sin(angle));angle=0;l=r/6;var b2=createPt(b.x+l*Math.cos(angle),b.y+l*Math.sin(angle));var c=createPt(r,r);angle=Math.PI;l=r/6;var c1=createPt(c.x+l*Math.cos(angle),c.y+l*Math.sin(angle));angle=-Math.PI/2;l=r/6;var c2=createPt(c.x+l*Math.cos(angle),c.y+l*Math.sin(angle));var d=createPt(r,-r);angle=Math.PI/2;l=r/6;var d1=createPt(d.x+l*Math.cos(angle),d.y+l*Math.sin(angle));angle=Math.PI;l=r/6;var d2=createPt(d.x+l*Math.cos(angle),d.y+l*Math.sin(angle));var e=createPt(-r,0);var f=createPt(r,0);var g=createPt(0,r/4);var gnt1=ctx.createLinearGradient(0,-r,0,r/4); // 上半圈gnt1.addColorStop(0,"rgb(255,255,255)");gnt1.addColorStop(1,"rgb(203,203,203)");ctx.fillStyle=gnt1;ctx.beginPath();ctx.moveTo(a1.x,a1.y);ctx.arc(a1.x,a2.y,r/6,-Math.PI/2,-Math.PI,true);ctx.lineTo(e.x,e.y);ctx.quadraticCurveTo(g.x,g.y,f.x,f.y);ctx.lineTo(d1.x,d1.y);ctx.arc(d2.x,d1.y,r/6,0,-Math.PI/2,true);ctx.closePath();ctx.fill();var gnt1=ctx.createLinearGradient(0,0,0,r); // 下半圈gnt1.addColorStop(0,"rgb(3,3,3)");gnt1.addColorStop(1,"rgb(131,131,131)");ctx.fillStyle=gnt1;ctx.beginPath();ctx.moveTo(b1.x,b1.y);ctx.arc(b2.x,b1.y,r/6,Math.PI,Math.PI/2,true);ctx.lineTo(c1.x,c1.y);ctx.arc(c1.x,c2.y,r/6,Math.PI/2,0,true);ctx.lineTo(f.x,f.y);ctx.quadraticCurveTo(g.x,g.y,e.x,e.y);ctx.closePath();ctx.fill();ctx.restore();// #4ctx.save();var r=R*0.93;var w=2*r;var h=2*r;var gnt1=ctx.createLinearGradient(0,-r,0,r);gnt1.addColorStop(0,"rgb(87,87,87)");gnt1.addColorStop(1,"rgb(204,204,204)");ctx.fillStyle=gnt1;drawRoundRect(ctx,0,0,w,h,r/6);ctx.fill();ctx.restore();// #5ctx.save();var r=R*0.92;var w=2*r;var h=2*r;var gnt1=ctx.createLinearGradient(0,-r,0,r);gnt1.addColorStop(0,"rgb(87,87,87)");gnt1.addColorStop(1,"rgb(204,204,204)");ctx.fillStyle="black";drawRoundRect(ctx,0,0,w,h,r/6);ctx.fill();ctx.restore();// #6ctx.save();var r=R*0.91;var a=createPt(-r,-r);var angle=0;var l=r/6;var a1=createPt(a.x+l*Math.cos(angle),a.y+l*Math.sin(angle));angle=Math.PI/2;l=r/6;var a2=createPt(a.x+l*Math.cos(angle),a.y+l*Math.sin(angle));var b=createPt(-r,r);angle=-Math.PI/2;l=r/6;var b1=createPt(b.x+l*Math.cos(angle),b.y+l*Math.sin(angle));angle=0;l=r/6;var b2=createPt(b.x+l*Math.cos(angle),b.y+l*Math.sin(angle));var c=createPt(r,r);angle=Math.PI;l=r/6;var c1=createPt(c.x+l*Math.cos(angle),c.y+l*Math.sin(angle));angle=-Math.PI/2;l=r/6;var c2=createPt(c.x+l*Math.cos(angle),c.y+l*Math.sin(angle));var d=createPt(r,-r);angle=Math.PI/2;l=r/6;var d1=createPt(d.x+l*Math.cos(angle),d.y+l*Math.sin(angle));angle=Math.PI;l=r/6;var d2=createPt(d.x+l*Math.cos(angle),d.y+l*Math.sin(angle));var e=createPt(-r,0);var f=createPt(r,0);var g=createPt(0,r/4);var gnt1=ctx.createLinearGradient(0,-r,0,r/4); // 上半圈gnt1.addColorStop(0,"rgb(125,125,125)");gnt1.addColorStop(1,"rgb(9,9,9)");ctx.fillStyle=gnt1;ctx.beginPath();ctx.moveTo(a1.x,a1.y);ctx.arc(a1.x,a2.y,r/6,-Math.PI/2,-Math.PI,true);ctx.lineTo(e.x,e.y);ctx.quadraticCurveTo(g.x,g.y,f.x,f.y);ctx.lineTo(d1.x,d1.y);ctx.arc(d2.x,d1.y,r/6,0,-Math.PI/2,true);ctx.closePath();ctx.fill();var gnt1=ctx.createLinearGradient(0,0,0,r); // 下半圈gnt1.addColorStop(0,"rgb(3,3,3)");gnt1.addColorStop(1,"rgb(3,3,3)");ctx.fillStyle=gnt1;ctx.beginPath();ctx.moveTo(b1.x,b1.y);ctx.arc(b2.x,b1.y,r/6,Math.PI,Math.PI/2,true);ctx.lineTo(c1.x,c1.y);ctx.arc(c1.x,c2.y,r/6,Math.PI/2,0,true);ctx.lineTo(f.x,f.y);ctx.quadraticCurveTo(g.x,g.y,e.x,e.y);ctx.closePath();ctx.fill();ctx.restore();// Fectx.save();var r=R*0.91;ctx.textBaseline="middle";ctx.textAlign="center";ctx.font = r*1.4+"px consolas";var gnt1=ctx.createLinearGradient(0,-r/2,0,r/2);gnt1.addColorStop(0,"white");gnt1.addColorStop(1,"rgb(34,98,213)");ctx.fillStyle=gnt1;ctx.fillText("Fe",r*0.05,r*0.1);ctx.restore();// 26ctx.save();var r=R*0.91;ctx.textBaseline="middle";ctx.textAlign="center";ctx.font = r*0.2+"px consolas";ctx.fillStyle="white";ctx.fillText("26",-r*0.80,-r*0.75);ctx.restore();// [Ar]3d64s2ctx.save();var r=R*0.91;ctx.textBaseline="middle";ctx.textAlign="center";ctx.font = r*0.2+"px consolas";ctx.fillStyle="white";ctx.fillText("[Ar]3d64s2",r*0.35,-r*0.75);ctx.restore();// Ironctx.save();var r=R*0.91;ctx.textBaseline="middle";ctx.textAlign="center";ctx.font = r*0.2+"px consolas";ctx.fillStyle="white";ctx.fillText("Iron",0,r*0.60);ctx.restore();// 55.845ctx.save();var r=R*0.91;ctx.textBaseline="middle";ctx.textAlign="center";ctx.font = r*0.2+"px consolas";ctx.fillStyle="white";ctx.fillText("55.845",0,r*0.84);ctx.restore();writeText(ctx,WIDTH/2-30,HEIGHT/2-5,"逆火制图","8px consolas","lightgrey");// 版权}
}/*----------------------------------------------------------
函数:用于绘制圆角矩形
ctx:绘图上下文
x:矩形中心横坐标
y:矩形中心纵坐标
width:矩形宽
height:矩形高
radius:圆角半径
----------------------------------------------------------*/
function drawRoundRect(ctx,x,y,width,height,radius){ctx.beginPath();ctx.moveTo(x-width/2+radius,y-height/2);ctx.lineTo(x+width/2-radius,y-height/2);ctx.arcTo(x+width/2,y-height/2,x+width/2,y-height/2+radius,radius);ctx.lineTo(x+width/2,y-height/2+radius);ctx.lineTo(x+width/2,y+height/2-radius);ctx.arcTo(x+width/2,y+height/2,x+width/2-radius,y+height/2,radius);ctx.lineTo(x+width/2-radius,y+height/2);ctx.lineTo(x-width/2+radius,y+height/2);ctx.arcTo(x-width/2,y+height/2,x-width/2,y+height/2-radius,radius);ctx.lineTo(x-width/2,y+height/2-radius);ctx.lineTo(x-width/2,y-height/2+radius);ctx.arcTo(x-width/2,y-height/2,x-width/2+radius,y-height/2,radius);ctx.closePath();
}/*----------------------------------------------------------
函数:用于绘制实心圆
ctx:绘图上下文
x:矩形中心横坐标
y:矩形中心纵坐标
r:圆半径
style:填充圆的方案
----------------------------------------------------------*/
function drawSolidCircle(ctx,x,y,r,style){ctx.fillStyle=style;ctx.beginPath();ctx.arc(x,y,r,0,Math.PI*2,false);ctx.closePath();ctx.fill();
}/*----------------------------------------------------------
函数:创建一个二维坐标点
x:横坐标
y:纵坐标
Pt即Point
----------------------------------------------------------*/
function createPt(x,y){var retval={};retval.x=x;retval.y=y;return retval;
}/*----------------------------------------------------------
函数:延时若干毫秒
milliseconds:毫秒数
----------------------------------------------------------*/
function sleep(milliSeconds) {const date = Date.now();let currDate = null;while (currDate - date < milliSeconds) {currDate = Date.now();}
}/*----------------------------------------------------------
函数:书写文字
ctx:绘图上下文
x:横坐标
y:纵坐标
text:文字
font:字体
color:颜色
----------------------------------------------------------*/
function writeText(ctx,x,y,text,font,color){ctx.save();ctx.textBaseline="bottom";ctx.textAlign="center";ctx.font = font;ctx.fillStyle=color;ctx.fillText(text,x,y);ctx.restore();
}/*-------------------------------------------------------------
你现在要在乎的无非三件事：你的健康、你内心的平静和你的钱。
--------------------------------------------------------------*/
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</script>
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