📄 计算机图形学复习题.htm
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style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">b．不同的学科，研究对象和数学基础都不同，但它们之间也有可转换部分<o:p></o:p></SPAN></P>
<P class=MsoNormal
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style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">c．同一学科在不同场合的不同称呼而已<o:p></o:p></SPAN></P>
<P class=MsoNormal
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style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">d．完全不同的学科，两者毫不相干<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN-TOP: 6pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left"
align=left><SPAN lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">3、触摸屏是(<SPAN
style="mso-spacerun: yes">
</SPAN>)设备。<o:p></o:p></SPAN></P>
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style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">a．输入<SPAN
style="mso-spacerun: yes"> </SPAN>b．输出<SPAN
style="mso-spacerun: yes"> </SPAN>c．输入输出<SPAN
style="mso-spacerun: yes">
</SPAN>d．即不是输入也不是输出<o:p></o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN-TOP: 6pt; TEXT-INDENT: 17pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left"
align=left><SPAN lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'"><![if !supportEmptyParas]><![endif]> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN-TOP: 6pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left"
align=left><B style="mso-bidi-font-weight: normal"><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">二、填空题</SPAN></B><SPAN
lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">(15分)<o:p></o:p></SPAN></P>
<P class=MsoNormal
style="MARGIN: 6pt 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-list: l0 level1 lfo2"
align=left><![if !supportLists]><SPAN lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">1.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">正负法通常把平面分成三个区域，分别是<U>ˍˍˍˍˍˍˍˍˍˍ</U>区使ｆ<SPAN
lang=EN-US>(x，ｙ)＞０，<U>ˍˍˍˍˍˍˍˍˍˍ</U>区使ｆ(x，ｙ)＜０，<U>ˍˍˍˍˍˍˍˍˍˍ</U>区使ｆ(x，ｙ)＝０（曲线本身）。<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal
style="MARGIN: 6pt 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-list: l0 level1 lfo2"
align=left><![if !supportLists]><SPAN lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">2.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><![endif]><U><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">ˍˍˍˍˍˍˍˍˍˍ</SPAN></U><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">显示器不能擦去局部图形，只能用于静显示，常用于显示大量而复杂稳定的图形。<SPAN
lang=EN-US><o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal
style="MARGIN: 6pt 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-list: l0 level1 lfo2"
align=left><![if !supportLists]><SPAN lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">3.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">具有<SPAN
lang=EN-US>256级灰度、分辨率为1024*1024个象素阵列的光栅扫描式显示器需要<U>ˍˍˍˍˍˍˍˍˍˍ</U>K的缓冲器。<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal
style="MARGIN: 6pt 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-list: l0 level1 lfo2"
align=left><![if !supportLists]><SPAN lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">4.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">生成直线的四点要求是<U>ˍˍˍˍˍˍˍˍˍˍ</U>，<U>ˍˍˍˍˍˍˍˍˍˍ</U>，<U>ˍˍˍˍˍˍˍˍˍˍ</U>，<U>ˍˍˍˍˍˍˍˍˍˍ</U>。<SPAN
lang=EN-US><o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal
style="MARGIN: 6pt 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-list: l0 level1 lfo2"
align=left><![if !supportLists]><SPAN lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">5.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">将多边形外部一点<SPAN
lang=EN-US>A与某一点B用线段连接，若此线段与多边形边界相交的次数为 <U>ˍˍˍˍˍˍˍˍˍˍ</U>，<SPAN
style="mso-spacerun: yes">
</SPAN>则点B在多边形外部，若此线段与多边形边界相交的次数为<U>ˍˍˍˍˍˍˍˍˍˍ</U>，则点B在多边形内部，<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal
style="MARGIN: 6pt 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-list: l0 level1 lfo2"
align=left><![if !supportLists]><SPAN lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">6.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">扫描线的连贯性是多边形区域连贯性在<U>ˍˍˍˍˍˍˍˍˍˍ</U>
的反映；边的连贯性是多边形区域连贯性在<U>ˍˍˍˍˍˍˍˍˍˍ</U>的反映。<SPAN
lang=EN-US><o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal
style="MARGIN: 6pt 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-list: l0 level1 lfo2"
align=left><![if !supportLists]><SPAN lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">7.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">用于减少或克服在“光栅图形显示器上绘制直线、多边形等连续图形时，由离散量表示连续量引起的失真”的技术叫<U>ˍˍˍˍˍˍˍˍˍˍ</U>。<SPAN
lang=EN-US><o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal
style="MARGIN: 6pt 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-list: l0 level1 lfo2"
align=left><![if !supportLists]><SPAN lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">8.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">绘制圆弧时的终点判别，规定离<SPAN
lang=EN-US>X轴近的终点，以<U>ˍˍˍˍˍˍˍˍˍˍ</U>来计长，而离Y轴近的终点，以<U>ˍˍˍˍˍˍˍˍˍˍ</U>来计长，<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal
style="MARGIN: 6pt 0cm 0pt; TEXT-INDENT: 18pt; LINE-HEIGHT: 150%; TEXT-ALIGN: left; mso-list: l0 level1 lfo2"
align=left><![if !supportLists]><SPAN lang=EN-US
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">9.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">二次曲线的参数方程<SPAN
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</xml><![endif]-->，当<U>ˍˍˍˍˍˍˍˍˍˍ</U>时，是抛物线，当<U>ˍˍˍˍˍˍˍˍˍˍ</U>时，是双曲线，当<U>ˍˍˍˍˍˍˍˍˍˍ</U>时，是椭圆。<o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal
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style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">10.<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN><![endif]><SPAN
style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">凸多边形窗口的二维线裁剪<SPAN
lang=EN-US>Cyrus-Beck算法中，若N<SUB>i</SUB>·(P<SUB>2</SUB>-P<SUB>1</SUB>)=0，说明<U>ˍˍˍˍˍˍˍˍˍˍ</U>，此时<A
name=OLE_LINK1>若<U>ˍˍˍˍˍˍˍˍˍˍ</U>，继续处理第i+1条边，</A>若<U>ˍˍˍˍˍˍˍˍˍˍ</U>则停止裁剪，结束算法。<U><o:p></o:p></U></SPAN></SPAN></P>
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style="FONT-FAMILY: 宋体; mso-hansi-font-family: 'Times New Roman'">11.<SPAN
style="FONT: 7pt 'Times New Roman'">
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