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    canvas简易绘图的实现(海绵宝宝篇)

    最近在研究canvas,简单的用canvas绘制了一下卡通人物--海绵宝宝。

    图片如下:

    代码如下:

    <!DOCTYPE html>
    <html>
     <head>
      <meta charset="utf-8" />
      <title>canvas海绵宝宝</title>
     </head>
     <body>
      <canvas id="canvas" width="1000" height="700" style="background: #01539f;"></canvas>
     </body>
     <script>
      var canvas = document.getElementById("canvas");
      var ctx = canvas.getContext("2d");
      with(ctx){
       //袖子
       //左
       beginPath();
       fillStyle="#fff";
       strokeStyle="#000";
       lineWidth=2;
       bezierCurveTo(142,253,112,263,112,303)
       quadraticCurveTo(120,308,150,303)
       fill();
       stroke();
       closePath();
       //右
       beginPath();
       fillStyle="#fff";
       strokeStyle="#000";
       lineWidth=2;
       bezierCurveTo(445,253,477,263,477,303)
       quadraticCurveTo(467,308,447,303)
       fill();
       stroke();
       closePath();
       //胳膊
       //左
       beginPath();
       fillStyle="#f5e261";
       strokeStyle="#000";
       lineWidth=2;
       moveTo(122,306);
       lineTo(110,406);
       lineTo(120,406);
       lineTo(132,306);
       fill();
       stroke();
       closePath();
       //右
       beginPath();
       fillStyle="#f5e261";
       strokeStyle="#000";
       moveTo(458,306);
       lineTo(470,406);
       lineTo(480,406);
       lineTo(468,306);
       fill();
       stroke();
       closePath();
       //手
       //左
       //衣服
       beginPath();
       fillStyle="#fff";
       strokeStyle="#000";
       lineWidth=5;
       shadowColor = "#000"; 
       shadowOffsetX = 0; 
       shadowOffsetY = 0; 
       shadowBlur = 0; 
       moveTo(145,385);
       lineTo(146,425);
       lineTo(442,425);
       lineTo(443,385);
       stroke();
       fill();
       closePath();
       //裤子
       beginPath();
       fillStyle="#ae6f28";
       strokeStyle="#000";
       moveTo(146,427);
       lineTo(147,470);
       lineTo(441,470);
       lineTo(442,427);
       stroke();
       fill();
       closePath();
       //裤子图案
       beginPath();
       fillStyle="#000";
       rect(156,438,60,15);
       rect(236,438,120,15);
       rect(373,438,60,15);
       fill();
       closePath();
       //裤腿
       beginPath();
       fillStyle="#ae6f28";
       strokeStyle="#000";
       lineWidth=2;
       moveTo(190,472);
       lineTo(190,490);
       lineTo(235,490);
       lineTo(235,472);
       moveTo(350,472);
       lineTo(350,490);
       lineTo(395,490);
       lineTo(395,472);
       fill();
       stroke();
       closePath();
       //腿
       beginPath();
       fillStyle="#fffe71";
       strokeStyle="#000";
       lineWidth=2;
       moveTo(208,491);
       lineTo(208,516);
       lineTo(218,516);
       lineTo(218,491);
       moveTo(368,491);
       lineTo(368,516);
       lineTo(378,516);
       lineTo(378,491);
       fill();
       stroke();
       closePath();
       //袜子
       beginPath();
       fillStyle="#fff";
       strokeStyle="#000";
       lineWidth=2;
       moveTo(208,517);
       lineTo(207,560);
       lineTo(218,560);
       lineTo(218,517);
       moveTo(368,517);
       lineTo(368,560);
       lineTo(379,560);
       lineTo(378,517);
       fill();
       stroke();
       closePath();
       //蓝杠
       beginPath();
       strokeStyle="#536d92";
       lineWidth=4;
       moveTo(208,523);
       lineTo(218,523);
       moveTo(368,523);
       lineTo(378,523);
       stroke();
       closePath();
       //红杠
       beginPath();
       strokeStyle="#da4751";
       lineWidth=4;
       moveTo(209,530);
       lineTo(218,530);
       moveTo(369,530);
       lineTo(378,530);
       stroke();
       closePath();
       
       //领带
       beginPath();
       strokeStyle="#000";
       lineWidth=5;
       fillStyle="#ef4641";
       moveTo(270,385);
       lineTo(320,385);
       lineTo(298,413);
       lineTo(292,413);
       lineTo(270,385);
       moveTo(292,415);
       lineTo(280,446);
       lineTo(295,462);
       lineTo(310,446);
       lineTo(298,415);
       stroke();
       fill();
       closePath();
       //领子
       beginPath();
       strokeStyle="#000";
       fillStyle="#fff";
       moveTo(280,393);
       lineTo(265,410);
       lineTo(218,385);
       moveTo(310,393);
       lineTo(325,410);
       lineTo(362,385);
       stroke();
       fill();
       closePath();
       //脸
       beginPath();
       strokeStyle="#818620";
       fillStyle="#f5e262";
       lineWidth=5;
       bezierCurveTo(140,50,150,60,160,50);
       quadraticCurveTo(170,40,180,50);
       quadraticCurveTo(190,60,200,50);
       quadraticCurveTo(210,40,220,50);
       quadraticCurveTo(230,60,240,50);
       quadraticCurveTo(250,40,260,50);
       quadraticCurveTo(270,60,280,50);
       quadraticCurveTo(290,40,300,50);
       quadraticCurveTo(310,60,320,50);
       quadraticCurveTo(330,40,340,50);
       quadraticCurveTo(350,60,360,50);
       quadraticCurveTo(370,40,380,50);
       quadraticCurveTo(390,60,400,50);
       quadraticCurveTo(410,40,420,50);
       quadraticCurveTo(430,60,440,50);
       quadraticCurveTo(450,40,460,50);
       quadraticCurveTo(465,60,460,70);
       quadraticCurveTo(450,80,460,90);
       quadraticCurveTo(468,100,458,110);
       quadraticCurveTo(446,120,456,130);
       quadraticCurveTo(466,140,456,150);
       quadraticCurveTo(444,160,454,170);
       quadraticCurveTo(464,180,454,190);
       quadraticCurveTo(442,200,452,210);
       quadraticCurveTo(462,220,452,230);
       quadraticCurveTo(440,240,450,250);
       quadraticCurveTo(460,260,450,270);
       quadraticCurveTo(438,280,448,290);
       quadraticCurveTo(458,300,448,310);
       quadraticCurveTo(436,320,446,330);
       quadraticCurveTo(456,340,446,350);
       quadraticCurveTo(434,360,444,370);
       quadraticCurveTo(454,380,444,390);
       quadraticCurveTo(435,405,424,390);
       quadraticCurveTo(415,380,405,390);
       quadraticCurveTo(395,400,385,390);
       quadraticCurveTo(375,380,365,390);
       quadraticCurveTo(355,400,345,390);
       quadraticCurveTo(335,380,325,390);
       quadraticCurveTo(315,400,305,390);
       quadraticCurveTo(295,380,285,390);
       quadraticCurveTo(275,400,265,390);
       quadraticCurveTo(255,380,245,390);
       quadraticCurveTo(235,400,225,390);
       quadraticCurveTo(215,380,205,390);
       quadraticCurveTo(195,400,185,390);
       quadraticCurveTo(175,380,165,390);
       quadraticCurveTo(155,400,145,390);
       quadraticCurveTo(135,380,145,370);
       quadraticCurveTo(153,360,143,350);
       quadraticCurveTo(133,340,143,330);
       quadraticCurveTo(151,320,141,310);
       quadraticCurveTo(131,300,141,290);
       quadraticCurveTo(149,280,139,270);
       quadraticCurveTo(129,260,139,250);
       quadraticCurveTo(147,240,137,230);
       quadraticCurveTo(127,220,137,210);
       quadraticCurveTo(145,200,135,190);
       quadraticCurveTo(125,180,135,170);
       quadraticCurveTo(143,160,133,150);
       quadraticCurveTo(123,140,133,130);
       quadraticCurveTo(141,120,131,110);
       quadraticCurveTo(121,100,131,90);
       quadraticCurveTo(139,80,129,70);
       quadraticCurveTo(119,60,129,50);
       quadraticCurveTo(137,45,140,50);
       stroke();
       fill();
       closePath();
       //眼睛
       beginPath();
       strokeStyle="#000";
       fillStyle="#fff";
       arc(249,180,45,0,Math.PI*2,true);
       arc(341,180,45,0,Math.PI*2,true);
       stroke();
       fill();
       closePath();
       //眼仁
       beginPath();
       strokeStyle="#000";
       fillStyle="#50d1f1";
       arc(255,180,18,0,Math.PI*2,true);
       stroke();
       fill();
       closePath();
       beginPath();
       strokeStyle="#000";
       fillStyle="#50d1f1";
       arc(335,180,18,0,Math.PI*2,true);
       stroke();
       fill();
       closePath();
       //眼球
       beginPath();
       strokeStyle="#000";
       fillStyle="#000";
       arc(255,180,10,0,Math.PI*2,true);
       stroke();
       fill();
       closePath();
       beginPath();
       strokeStyle="#000";
       fillStyle="#000";
       arc(335,180,10,0,Math.PI*2,true);
       stroke();
       fill();
       closePath();
       //眼睫毛
       beginPath();
       lineWidth=6;
       strokeStyle="#000";
       moveTo(210,122);
       lineTo(223,142);
       moveTo(247,112);
       lineTo(247,133);
       moveTo(283,117);
       lineTo(270,140);
       moveTo(307,120);
       lineTo(320,140);
       moveTo(344,112);
       lineTo(344,133);
       moveTo(380,120);
       lineTo(365,140);
       stroke();
       closePath();
       //嘴角
       beginPath();
       fillStyle="#fdd06b"
       lineWidth=3;
       strokeStyle="#ca5939";
       moveTo(190,230);
       bezierCurveTo(160,175,265,190,230,230);
       stroke();
       fill();
       closePath();
       beginPath();
       fillStyle="#fdd06b"
       lineWidth=3;
       strokeStyle="#ca5939";
       moveTo(350,230);
       bezierCurveTo(325,175,435,190,395,230);
       stroke();
       fill();
       closePath();
       //牙
       beginPath();
       strokeStyle="#000";
       lineWidth=2;
       fillStyle="#fff";
       moveTo(275,272);
       lineTo(275,292);
       lineTo(295,292);
       lineTo(295,272);
       moveTo(300,272);
       lineTo(300,292);
       lineTo(320,292);
       lineTo(320,271);
       //rect(297,252,20,20);
       fill();
       stroke();
       closePath();
       //嘴
       beginPath();
       strokeStyle="#000";
       lineWidth=3;
       bezierCurveTo(210,220,290,340,380,220);
       stroke();
       closePath();
       beginPath();
       strokeStyle="#000";
       lineWidth=2;
       bezierCurveTo(205,225,205,215,220,220);
       stroke();
       closePath();
       beginPath();
       strokeStyle="#000";
       lineWidth=2;
       bezierCurveTo(370,220,380,215,385,225);
       stroke();
       closePath();
       //鼻子
       beginPath();
       strokeStyle="#000";
       lineWidth=3;
       fillStyle="#f5e262";
       moveTo(290,215);
       bezierCurveTo(265,170,340,185,300,225);
       stroke();
       fill();
       closePath();
       //下巴
       beginPath();
       strokeStyle="#cb662e";
       lineWidth=2;
       bezierCurveTo(250,305,270,330,290,310);
       quadraticCurveTo(300,305,310,310);
       quadraticCurveTo(330,330,350,305);
       shadowColor = "#cb662e"; 
       shadowOffsetX = 0; 
       shadowOffsetY = -3; 
       shadowBlur = 10; 
       stroke();
       closePath();
       //雀斑
       beginPath();
       fillStyle="#bf7627";
       arc(197,205,2,0,Math.PI*2,true);
       fill();
       closePath();
       beginPath();
       fillStyle="#bf7627";
       arc(210,214,2,0,Math.PI*2,true);
       fill();
       closePath();
       beginPath();
       fillStyle="#bf7627";
       arc(218,207,2,0,Math.PI*2,true);
       fill();
       closePath();
       beginPath();
       fillStyle="#bf7627";
       arc(367,205,2,0,Math.PI*2,true);
       fill();
       closePath();
       beginPath();
       fillStyle="#bf7627";
       arc(390,206,2,0,Math.PI*2,true);
       fill();
       closePath();
       beginPath();
       fillStyle="#bf7627";
       arc(380,213,2,0,Math.PI*2,true);
       fill();
       closePath();
       //皮鞋
       //左
       beginPath();
       strokeStyle="#000";
       fillStyle="#000";
       lineWidth=4;
       shadowColor = "#000"; 
       shadowOffsetX = 0; 
       shadowOffsetY = 0; 
       shadowBlur = 0; 
       arc(180,577,11,0,Math.PI*2,true);
       bezierCurveTo(185,560,197,575,207,560);
       moveTo(207,560);
       lineTo(217,560);
       quadraticCurveTo(227,570,217,585);
       quadraticCurveTo(197,580,180,585);
       quadraticCurveTo(207,561,185,570);
       rect(207,585,10,4)
       stroke();
       fill();
       //ctx.rotate( m * Math.PI / 180)
       closePath();
       //右
       beginPath();
       strokeStyle="#000";
       fillStyle="#000";
       lineWidth=4;
       shadowColor = "#000"; 
       shadowOffsetX = 0; 
       shadowOffsetY = 0; 
       shadowBlur = 0; 
       arc(405,577,11,0,Math.PI*2,true);
       bezierCurveTo(400,560,388,575,378,560);
       moveTo(378,560);
       lineTo(368,560);
       quadraticCurveTo(358,570,368,585);
       quadraticCurveTo(388,580,405,585);
       quadraticCurveTo(422,561,400,570);
       rect(368,585,10,4)
       stroke();
       fill();
       //ctx.rotate( m * Math.PI / 180)
       closePath();
       //白点
       beginPath();
       strokeStyle="#f5e262";
       fillStyle="#c4b127";
       fill();
       EvenCompEllipse(ctx, 160, 100, 10, 15);
       EvenCompEllipse(ctx, 150, 150, 5, 7);
       EvenCompEllipse(ctx, 200, 320, 7, 10)
       EvenCompEllipse(ctx, 225, 350, 11, 16)
       EvenCompEllipse(ctx, 425, 120, 11, 16)
       EvenCompEllipse(ctx, 410, 320, 9, 12)
       EvenCompEllipse(ctx, 380, 340, 6, 9)
       closePath();
      }
      function EvenCompEllipse(ctx, x, y, a, b)
      {
         ctx.save();
         //选择a、b中的较大者作为arc方法的半径参数
         var r = (a > b) ? a : b; 
         var ratioX = a / r; //横轴缩放比率
         var ratioY = b / r; //纵轴缩放比率
         ctx.scale(ratioX, ratioY); //进行缩放(均匀压缩)
         ctx.beginPath();
         //从椭圆的左端点开始逆时针绘制
         ctx.moveTo((x + a) / ratioX, y / ratioY);
         ctx.arc(x / ratioX, y / ratioY, r, 0, 2 * Math.PI);
         ctx.closePath();
         ctx.stroke();
         ctx.fill();
         ctx.restore();
      };
       
     </script>
    </html>

    以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。

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    canvas简易绘图的实现(海绵宝宝篇) canvas,简易,绘图,的,实现,