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20.2 测量坐标和区域
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C#高级编程（第3版）【全文连载】
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20.2 测量坐标和区域
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2006-10-13 14:41:00
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<h1 id="divCurrentNode" style="color: #b83507; width: 100%; text-align: left; font-size: 12px; padding-left: 2px">当前章节:<a href='100165564.htm'><font color='red'>20.2 测量坐标和区域</font></a></h1>
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<div style='float:left;width:49%'>·<a href='100165561.htm'>20.1.2 绘制图形</a></div><div style='float:right;width:49%'>·<a href='100165562.htm'>20.1.3 使用OnPaint()绘制图形</a></div><div style='float:left;width:49%'>·<a href='100165563.htm'>20.1.4 使用剪切区域</a></div><div style='float:right;width:49%'>·<a href='100165565.htm'>20.2.1 Point和PointF结构</a></div><div style='float:left;width:49%'>·<a href='100165566.htm'>20.2.2 Size和SizeF结构</a></div><div style='float:right;width:49%'>·<a href='100165567.htm'>20.2.3 Rectangle和RectangleF结构</a></div></div>
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<div id="text"> <link href="css.css" rel="stylesheet" type="text/css" /><h3 style="MARGIN-TOP: 11.4pt; MARGIN-LEFT: 0cm; MARGIN-RIGHT: 0cm; FTEL: 11.4pt"><a ftel="_Toc507815357"><span lang="EN-US">20.2 </span></a><span style="FONT-FAMILY: 楷体_GB2312">测量坐标和区域</span></h3>
<p class="MsoNormal"><span style="FONT-FAMILY: 宋体">在上一个示例中，我们遇到了基本结构</span><span lang="EN-US">Rectangle</span><span style="FONT-FAMILY: 宋体">，它用于表示矩形的坐标。</span><span lang="EN-US">GDI+</span><span style="FONT-FAMILY: 宋体">使用几个类似的结构来表示坐标或区域。下面介绍几个结构，它们都是在</span><span lang="EN-US">System.Drawing</span><span style="FONT-FAMILY: 宋体">命名空间中定义的，如表</span><span lang="EN-US">20-2</span><span style="FONT-FAMILY: 宋体">所示。</span></p>
<p class="a5" style="MARGIN-TOP: 8.15pt" align="center"><span style="FONT-FAMILY: 黑体">表</span><span lang="EN-US"> 20-2</span></p>
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<p class="a2"><span style="FONT-FAMILY: 黑体">结</span><span lang="EN-US"> </span><span style="FONT-FAMILY: 黑体">构</span></p>
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<p class="a2"><span style="FONT-FAMILY: 黑体">主要的公共属性</span></p>
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<p class="a4" style="MARGIN-LEFT: 10.7pt"><span lang="EN-US">struct Point</span></p>
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<p class="a4" style="MARGIN-LEFT: 10.7pt"><span lang="EN-US">X,Y</span></p>
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<p class="a4" style="MARGIN-LEFT: 10.7pt"><span lang="EN-US">struct PointF</span></p>
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<p class="a4" style="MARGIN-LEFT: 10.7pt"><span lang="EN-US">struct Size</span></p>
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<p class="a4" style="MARGIN-LEFT: 10.7pt"><span lang="EN-US">Width, Height</span></p>
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<p class="a4" style="MARGIN-LEFT: 10.7pt"><span lang="EN-US">struct SizeF</span></p>
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<p class="a4" style="MARGIN-LEFT: 10.7pt"><span lang="EN-US">struct Rectangle</span></p>
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<p class="a4" style="MARGIN-LEFT: 10.7pt"><span lang="EN-US">Left, Right , Top, Bottom, Width, Height, X, Y, Location, Size</span></p>
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<p class="a4" style="MARGIN-LEFT: 10.7pt"><span lang="EN-US">struct RectangleF</span></p>
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<p class="MsoNormal"><span lang="EN-US"> </span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 宋体">注意其中的许多对象都有许多其他属性、方法或运算符重载，这里没有列出来。本节只讨论最重要的成员。</span></p></div>
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<h1 id="divCurrentNode2" style="color: #b83507; width: 100%; text-align: left; font-size: 12px; padding-left: 2px">当前章节:<a href='100165564.htm'><font color='red'>20.2 测量坐标和区域</font></a></h1>
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<div style='float:left;width:49%'>·<a href='100165561.htm'>20.1.2 绘制图形</a></div><div style='float:right;width:49%'>·<a href='100165562.htm'>20.1.3 使用OnPaint()绘制图形</a></div><div style='float:left;width:49%'>·<a href='100165563.htm'>20.1.4 使用剪切区域</a></div><div style='float:right;width:49%'>·<a href='100165565.htm'>20.2.1 Point和PointF结构</a></div><div style='float:left;width:49%'>·<a href='100165566.htm'>20.2.2 Size和SizeF结构</a></div><div style='float:right;width:49%'>·<a href='100165567.htm'>20.2.3 Rectangle和RectangleF结构</a></div></div>
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