📄 c080100.htm

📁 计算机图形学的课件,让你学习不在无所适从.想学的就看看吧,回有用的.
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    <p align="left"><span lang="EN-US" style="font-size:10.5pt;mso-bidi-font-size:
12.0pt;font-family:&quot;Times New Roman&quot;;mso-fareast-font-family:宋体;mso-font-kerning:
1.0pt;mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:
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    </span><span style="mso-bidi-font-size: 12.0pt; font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"><font size="4" color="#FFFF00"><b><a name="#Bezier曲线的性质">Bezier曲线的性质</a></b></font></span></p>
    <ul>
      <li>
        <p align="left"><span lang="EN-US"><b><span style="mso-bidi-font-size: 12.0pt; font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><font size="4">曲线段通过控制点</font></span></b></span></li>
      <li>
        <p align="left"><span lang="EN-US"><b><font size="4"><span style="mso-bidi-font-size: 12.0pt; font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">控制点连线方向决定曲线段切线方向</span></font></b></span></li>
      <li>
        <p align="left"><span lang="EN-US"><b><font size="4"><span style="mso-bidi-font-size: 12.0pt; font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">曲线在控制点确定的凸包内</span></font></b></span></li>
      <li>
        <p align="left"><span lang="EN-US"><b><font size="4"><span style="mso-bidi-font-size: 12.0pt; font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">不能局部修改</span></font></b></span></li>
    </ul>
    <p align="center"><span lang="EN-US" style="font-size:10.5pt;mso-bidi-font-size:
12.0pt;font-family:&quot;Times New Roman&quot;;mso-fareast-font-family:宋体;mso-font-kerning:
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    <p align="left"><span lang="EN-US" style="font-size:10.5pt;mso-bidi-font-size:
12.0pt;font-family:&quot;Times New Roman&quot;;mso-fareast-font-family:宋体;mso-font-kerning:
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    </span><!--[if gte mso 9]><xml>
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  DrawAspect="Content" ObjectID="_1074237236">
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 <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="_x0000_i1025"
  DrawAspect="Content" ObjectID="_1074237073">
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    <!--[if gte mso 9]><xml>
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    </span><b><font color="#FFFF00" size="4"><span style="mso-bidi-font-size: 12.0pt; font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"><a name="#双三次Bezier曲面">双三次Bezier曲面</a></span></font></b></p>
    <p align="center"><span lang="EN-US" style="font-size:10.5pt;mso-bidi-font-size:
12.0pt;font-family:&quot;Times New Roman&quot;;mso-fareast-font-family:宋体;mso-font-kerning:
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    <p align="left"><b><span style="mso-bidi-font-size: 12.0pt; font-family: Times New Roman; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang="EN-US"><font size="4">曲面性质：</font></span></b></p>
    <table border="0" width="124%">
      <tr>
        <td width="62%" valign="top">
          <ul>
            <li>曲面变通过16个控制点中的四个控制点</li>
            <li>当两个曲面片在u参数方向上有四个控制点共点时，曲面片之间是连续的。</li>
            <li>当两个曲面片在u参数方向上的四个共点中的每一个，在w参数方向上三点共线，曲面片之间是光滑的。</li>
          </ul>
        </td>
        <td width="38%">
          <p align="center"><img border="0" src="C80111.gif" width="217" height="165"></td>
      </tr>
    </table>
  </div>
    </td>
</tr>
</table>
</div>
<p>　</p>
<p>　</p>
<p>　</p>
<p class="MsoNormal">　</p>
<p class="MsoNormal">　</p>

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#计算机图形学
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