<!DOCTYPE html><html> <head> <meta charset="UTF-8"> <title></title> <script> var tangram= [ {p:[{x:0,y:0},{x:800,y:0},{x:400,y:400}],color:"#caff67"}, {p:[{x:0,y:0},{x:400,y:400},{x:0,y:800}],color:"#67becf"}, {p:[{x:800,y:0},{x:800,y:400},{x:600,y:600},{x:600,y:200}],color:"#ef3d61"}, {p:[{x:600,y:200},{x:600,y:600},{x:400,y:400}],color:"#f9f51a"}, {p:[{x:400,y:400},{x:600,y:600},{x:400,y:800},{x:200,y:600}],color:"#a594c0"}, {p:[{x:200,y:600},{x:400,y:800},{x:0,y:800}],color:"#fa8ecc"}, {p:[{x:800,y:400},{x:800,y:800},{x:400,y:800}],color:"#f6ca29"} ]; window.onload=function() { var canvas=document.getElementById("canvas"); var context=canvas.getContext("2d"); for(var i=0;i<tangram.length;i++) draw(tangram[i],context); } function draw(piece,ctx) { ctx.beginPath(); ctx.moveTo(piece.p[0].x,piece.p[0].y) for(var i=1 ; i<piece.p.length; i++) ctx.lineTo(piece.p[i].x,piece.p[i].y); ctx.closePath(); ctx.fillStyle=piece.color; ctx.fill(); } </script> </head> <body> <canvas id="canvas" width="800" height="800" style="border: 1px solid;display: block;margin: 80px auto;"></canvas> </body> </html>
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