basic2dtransform.htm

来自「电脑图学(Computer Graphics)是资料结构、演算法与数学的应用」· HTM 代码 · 共 314 行

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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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  <title>基本的二维座标转换</title>
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<h3><a href="http://caterpillar.onlyfun.net/GossipCN/index.html">From
Gossip@caterpillar</a></h3>










<h1><a href="ComputerGraphics.htm">Computer Graphics:&nbsp;基本的二维座标转换</a></h1>










以下这些座标转换都很简单,直接使用图片说明。。。。<br>





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对x = a水平对称移动:<br>










<img style="border: 0px solid ; width: 398px; height: 158px;" src="images/basic2DTransform-1.jpg" alt=""><br>





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对y = a垂直对称移动:<br>






<img style="border: 0px solid ; width: 392px; height: 152px;" src="images/basic2DTransform-2.jpg" alt=""><br>


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往某方向平行移动:<br>
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&nbsp;<img style="border: 0px solid ; width: 394px; height: 152px;" src="images/basic2DTransform-3.jpg" alt=""><br>





<br clear="all">





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绕原点旋转:<br>






<img style="border: 0px solid ; width: 396px; height: 164px;" src="images/basic2DTransform-4.jpg" alt=""><br>






<p></p>
缩放:<br>






<img style="border: 0px solid ; width: 396px; height: 164px;" src="images/basic2DTransform-5.jpg" alt=""><br>




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