HTML语言: html5canvas综合
<!DOCTYPE html> <!--13.10.31 16:57-->
<html lang="zh">
<head>
<meta charset="gb2312" />
<title>canvas</title>
<meta name="keyword" content="canvas web" />
<meta name="description" content="" />
<meta name="generator" content="Notepad2" />
<meta name="author" content="Quentin" />
<meta name="robots" content="all" />
<meta http-equiv="windows-target" content="_top" />
<style>
canvas{border:2px solid red;}
</style>
<script>
function drawShape(){
// get the canvas element using the DOM
var canvas = document.getElementById('tutorial');
// Make sure we don't execute when canvas isn't supported
if (canvas.getContext){
// use getContext to use the canvas for drawing
var ctx = canvas.getContext('2d');
// Draw shapes
roundedRect(ctx,12,12,150,150,15);
roundedRect(ctx,19,19,150,150,9);
roundedRect(ctx,53,53,49,33,10);
roundedRect(ctx,53,119,49,16,6);
roundedRect(ctx,135,53,49,33,10);
roundedRect(ctx,135,119,25,49,10);/*与下面的function roundedRect共同作用*/
// Character 1/*黑方块*/
ctx.beginPath();
ctx.arc(37,37,13,Math.PI/7,-Math.PI/7,false);
ctx.lineTo(34,37);
ctx.fill(); /*咬*/
// blocks
for(i=0;i<8;i++){
ctx.fillRect(51+i*16,35,4,4);
}
for(i=0;i<6;i++){
ctx.fillRect(115,51+i*16,4,4);
}
for(i=0;i<8;i++){
ctx.fillRect(51+i*16,99,4,4);
}
// character 2/*幽灵*/
ctx.beginPath();
ctx.moveTo(83,116);
ctx.lineTo(83,102);
ctx.bezierCurveTo(83,94,89,88,97,88);
ctx.bezierCurveTo(105,88,111,94,111,102);
ctx.lineTo(111,116);
ctx.lineTo(106.333,111.333);
ctx.lineTo(101.666,116);
ctx.lineTo(97,111.333);
ctx.lineTo(92.333,116);
ctx.lineTo(87.666,111.333);
ctx.lineTo(83,116);
ctx.fill();
/*白色的眼框*/
ctx.fillStyle = "white";
ctx.beginPath();
ctx.moveTo(91,96);
ctx.bezierCurveTo(88,96,87,99,87,101);
ctx.bezierCurveTo(87,103,88,106,91,106);
ctx.bezierCurveTo(94,106,95,103,95,101);
ctx.bezierCurveTo(95,99,94,96,91,96);
ctx.moveTo(103,96);
ctx.bezierCurveTo(100,96,99,99,99,101);
ctx.bezierCurveTo(99,103,100,106,103,106);
ctx.bezierCurveTo(106,106,107,103,107,101);
ctx.bezierCurveTo(107,99,106,96,103,96);
ctx.fill();
/*黑色的眼睛*/
ctx.fillStyle = "black";
ctx.beginPath();
ctx.arc(101,102,2,0,Math.PI*2,true);
ctx.fill();
ctx.beginPath();
ctx.arc(89,102,2,0,Math.PI*2,true);
ctx.fill();
} else {
alert('You need Safari or Firefox 1.5+ to see this demo.');
}
}
/*6个矩形圆角框一起画出*/
function roundedRect(ctx,x,y,width,height,radius){
ctx.beginPath();
ctx.moveTo(x,y+radius);
ctx.lineTo(x,y+height-radius);
ctx.quadraticCurveTo(x,y+height,x+radius,y+height);
ctx.lineTo(x+width-radius,y+height);
ctx.quadraticCurveTo(x+width,y+height,x+width,y+height-radius);
ctx.lineTo(x+width,y+radius);
ctx.quadraticCurveTo(x+width,y,x+width-radius,y);
ctx.lineTo(x+radius,y);
ctx.quadraticCurveTo(x,y,x,y+radius);
ctx.stroke();
}
</script>
</head>
<body onload="drawShape()">
<canvas id="tutorial" width="400" height="400"></canvas>
</body>
</html>
<!DOCTYPE html> <!--13.10.31 16:57-->
<html lang="zh">
<head>
<meta charset="gb2312" />
<title>canvas</title>
<meta name="keyword" content="canvas web" />
<meta name="description" content="" />
<meta name="generator" content="Notepad2" />
<meta name="author" content="Quentin" />
<meta name="robots" content="all" />
<meta http-equiv="windows-target" content="_top" />
<style>
canvas{border:2px solid red;}
</style>
<script>
function drawShape(){
// get the canvas element using the DOM
var canvas = document.getElementById('tutorial');
// Make sure we don't execute when canvas isn't supported
if (canvas.getContext){
// use getContext to use the canvas for drawing
var ctx = canvas.getContext('2d');
// Draw shapes
roundedRect(ctx,12,12,150,150,15);
roundedRect(ctx,19,19,150,150,9);
roundedRect(ctx,53,53,49,33,10);
roundedRect(ctx,53,119,49,16,6);
roundedRect(ctx,135,53,49,33,10);
roundedRect(ctx,135,119,25,49,10);/*与下面的function roundedRect共同作用*/
// Character 1/*黑方块*/
ctx.beginPath();
ctx.arc(37,37,13,Math.PI/7,-Math.PI/7,false);
ctx.lineTo(34,37);
ctx.fill(); /*咬*/
// blocks
for(i=0;i<8;i++){
ctx.fillRect(51+i*16,35,4,4);
}
for(i=0;i<6;i++){
ctx.fillRect(115,51+i*16,4,4);
}
for(i=0;i<8;i++){
ctx.fillRect(51+i*16,99,4,4);
}
// character 2/*幽灵*/
ctx.beginPath();
ctx.moveTo(83,116);
ctx.lineTo(83,102);
ctx.bezierCurveTo(83,94,89,88,97,88);
ctx.bezierCurveTo(105,88,111,94,111,102);
ctx.lineTo(111,116);
ctx.lineTo(106.333,111.333);
ctx.lineTo(101.666,116);
ctx.lineTo(97,111.333);
ctx.lineTo(92.333,116);
ctx.lineTo(87.666,111.333);
ctx.lineTo(83,116);
ctx.fill();
/*白色的眼框*/
ctx.fillStyle = "white";
ctx.beginPath();
ctx.moveTo(91,96);
ctx.bezierCurveTo(88,96,87,99,87,101);
ctx.bezierCurveTo(87,103,88,106,91,106);
ctx.bezierCurveTo(94,106,95,103,95,101);
ctx.bezierCurveTo(95,99,94,96,91,96);
ctx.moveTo(103,96);
ctx.bezierCurveTo(100,96,99,99,99,101);
ctx.bezierCurveTo(99,103,100,106,103,106);
ctx.bezierCurveTo(106,106,107,103,107,101);
ctx.bezierCurveTo(107,99,106,96,103,96);
ctx.fill();
/*黑色的眼睛*/
ctx.fillStyle = "black";
ctx.beginPath();
ctx.arc(101,102,2,0,Math.PI*2,true);
ctx.fill();
ctx.beginPath();
ctx.arc(89,102,2,0,Math.PI*2,true);
ctx.fill();
} else {
alert('You need Safari or Firefox 1.5+ to see this demo.');
}
}
/*6个矩形圆角框一起画出*/
function roundedRect(ctx,x,y,width,height,radius){
ctx.beginPath();
ctx.moveTo(x,y+radius);
ctx.lineTo(x,y+height-radius);
ctx.quadraticCurveTo(x,y+height,x+radius,y+height);
ctx.lineTo(x+width-radius,y+height);
ctx.quadraticCurveTo(x+width,y+height,x+width,y+height-radius);
ctx.lineTo(x+width,y+radius);
ctx.quadraticCurveTo(x+width,y,x+width-radius,y);
ctx.lineTo(x+radius,y);
ctx.quadraticCurveTo(x,y,x,y+radius);
ctx.stroke();
}
</script>
</head>
<body onload="drawShape()">
<canvas id="tutorial" width="400" height="400"></canvas>
</body>
</html>