天天课堂 发表于 2009-8-11 14:01:00

巧用MOVE命令绘图

<p>巧用MOVE命令绘图<br/>绘图过程中，当某一图形对象的位置不易确定时，可先在容易定位的地方画出该对象，然后用MOVE命令将其移动到正确的位置。如图2-1所示，若要直接在图中位置画圆A，则一般应先画辅助线以确定圆心，然后绘制圆。另一种作图方法是：先在线段B的中点画圆，再用MOVE命令将圆移动到指定位置。第二种方法无需绘制辅助线，作图的效率常比第一种方法高。<br/>1.&nbsp; &nbsp; &nbsp; &nbsp; 在线段B的中点处绘制圆，如图2-2所示。<img width="401" height="169" alt="" src="http://www.ttketang.com/home/attachment/200908/11/113_1249967441oQfF.jpg" complete="complete"/><br/>命令: _circle 指定圆的圆心或 [三点(3P)/两点(2P)/相切、相切、半径(T)]: mid于<br/>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; //捕捉线段B的中点，参见图2-25<br/>指定圆的半径或 [直径(D)] &lt;8.8904&gt;: 15&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; //输入圆半径<br/>结果如图2-2所示。<br/>&nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;<br/>图2-1&nbsp; &nbsp;用MOVE命令辅助绘图&nbsp; &nbsp; &nbsp; &nbsp; 图2-2&nbsp; &nbsp;画圆<br/>2.&nbsp; &nbsp; &nbsp; &nbsp; 将圆移动到正确的位置。<br/>命令: _move&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; //移动对象<br/>选择对象: 找到 1 个&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; //选择圆<br/>选择对象:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; //按Enter键<br/>指定基点或位移: 62&lt;32&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; //输入移动的距离和方向<br/>指定位移的第二点或 &lt;用第一点作位移&gt;:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; //按Enter键结束<br/>结果如图2-2所示。</p><p>本文转自<a href="http://www.ttketang.com/">http://www.ttketang.com/</a>，想学习cad或Ps的一定不要错过哟</p>

yxp 发表于 2009-8-11 15:37:00

这个MOVE,地球人都知道吧？这也叫技巧？
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