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js canvas實現簡單的圖像擴散效果

來源:懂視網 責編:小OO 時間:2020-11-27 22:30:52
文檔

js canvas實現簡單的圖像擴散效果

本文實例為大家分享了canvas實現簡單圖像擴散的代碼,供大家參考,具體內容如下:<,x2=400,x3=600,y1=400,y2=400,y3=400,lr1=10,lr2=10,lr3=10;var lc1="#EE7942";lc2="#EE2C2C";lc3="#CD6839";var lr1,lr2,lr3;drawarc(15,"#CAE1FF",1);drawarc(25,"#98FB98",2);drawarc(25,"#757575",3);drawarc(30,"#000000",1);drawarc(35,"#32CD32",2);drawarc(50,"#6959CD",3);drawarc(45,"red",1);drawarc(50。
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導讀本文實例為大家分享了canvas實現簡單圖像擴散的代碼,供大家參考,具體內容如下:<,x2=400,x3=600,y1=400,y2=400,y3=400,lr1=10,lr2=10,lr3=10;var lc1="#EE7942";lc2="#EE2C2C";lc3="#CD6839";var lr1,lr2,lr3;drawarc(15,"#CAE1FF",1);drawarc(25,"#98FB98",2);drawarc(25,"#757575",3);drawarc(30,"#000000",1);drawarc(35,"#32CD32",2);drawarc(50,"#6959CD",3);drawarc(45,"red",1);drawarc(50。

本文實例為大家分享了canvas實現簡單圖像擴散的代碼,供大家參考,具體內容如下

<!DOCTYPE HTML> 
<html> 
<body> 
 
<canvas id="myCanvas" width="800" height="800" style="border:1px solid #c3c3c3;"> 
Your browser does not support the canvas element. 
</canvas> 
 
<script type="text/javascript"> 
 
var c=document.getElementById("myCanvas"); 
var cxt=c.getContext("2d"); 
var x1=200,x2=400,x3=600,y1=400,y2=400,y3=400,lr1=10,lr2=10,lr3=10; 
var lc1="#EE7942";lc2="#EE2C2C";lc3="#CD6839"; 
var lr1,lr2,lr3; 
 
 
drawarc(15,"#CAE1FF",1); 
drawarc(25,"#98FB98",2); 
drawarc(25,"#757575",3); 
 
drawarc(30,"#000000",1); 
drawarc(35,"#32CD32",2); 
drawarc(50,"#6959CD",3); 
 
 
drawarc(45,"red",1); 
drawarc(50,"#fff",2); 
drawarc(65,"#000",3); 
 
 
function drawarc(radiu,ecolor,type){ 
 var grd; 
 var x,y,r; 
 var scolor; 
 switch(type){ 
 case 1: 
 x=x1; 
 y=y1; 
 r=lr1; 
 lr1=radiu; 
 scolor=lc1; 
 break; 
 case 2: 
 x=x2; 
 y=y2; 
 r=lr2; 
 lr2=radiu; 
 scolor=lc2; 
 break; 
 case 3: 
 x=x3; 
 y=y3; 
 r=lr3; 
 lr3=radiu; 
 scolor=lc3; 
 break; 
 default: 
 } 
 grd=cxt.createRadialGradient(x,y,r,x,y,radiu); 
 grd.addColorStop(0,scolor); 
 grd.addColorStop(1,ecolor); 
 cxt.fillStyle=grd; 
 cxt.beginPath(); 
 cxt.arc(x,y,radiu,0,360,false); 
 cxt.closePath(); 
 cxt.fill(); 
} 
</script> 
 
</body> 
</html> 

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文檔

js canvas實現簡單的圖像擴散效果

本文實例為大家分享了canvas實現簡單圖像擴散的代碼,供大家參考,具體內容如下:<,x2=400,x3=600,y1=400,y2=400,y3=400,lr1=10,lr2=10,lr3=10;var lc1="#EE7942";lc2="#EE2C2C";lc3="#CD6839";var lr1,lr2,lr3;drawarc(15,"#CAE1FF",1);drawarc(25,"#98FB98",2);drawarc(25,"#757575",3);drawarc(30,"#000000",1);drawarc(35,"#32CD32",2);drawarc(50,"#6959CD",3);drawarc(45,"red",1);drawarc(50。
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標簽: 實現 js 圖像
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