【canvas】基础练习二 文字

demo1 fillText strokeText绘制文字

<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title> fillText strokeText</title>
</head>
<body>

<canvas id="wapper" width="500" height="500"></canvas>

<script>
	var wapper = document.getElementById('wapper'),
		_2d = wapper.getContext('2d');/*2d的绘制对象*/

	_2d.font='30px Arial';
	_2d.fillText('dtdxrk',50,50);/*fillText(text,x,y,max width)*/
	_2d.strokeText('dtdxrk',50,100);/*strokeText(text,x,y,max width)*/

</script>
</body>
</html>

　　

demo2 字体 大小 粗细

<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>字体 大小 粗细</title>
</head>
<body>

<canvas id="wapper" width="500" height="500"></canvas>

<script>
	var wapper = document.getElementById('wapper'),
		_2d = wapper.getContext('2d');/*2d的绘制对象*/

	_2d.font='30px Arial';
	_2d.fillText('dtdxrk',10,30);/*fillText(text,x,y,max width)*/

	_2d.font='italic 40px simsun';
	_2d.fillText('dtdxrk',10,100);/*fillText(text,x,y,max width)*/
	
	_2d.font='bold 22px simsun';
	_2d.fillText('dtdxrk',10,150);/*fillText(text,x,y,max width)*/
</script>
</body>
</html>

　　

demo3 文字对齐 textAlign textBaseline

感觉没啥好说的

http://www.w3school.com.cn/tags/canvas_textalign.asp

_2d.textAlign="center|end|left|right|start";

　　

http://www.w3school.com.cn/tags/canvas_textbaseline.asp

_2d.textBaseline="alphabetic|top|hanging|middle|ideographic|bottom";

　　

 

posted @ 2015-04-20 15:27  dtdxrk  阅读(241)  评论(0)  编辑  收藏  举报