皮皮学，免费搜题
登录
搜题
【单选题】
在多边形的逐边裁剪法中,对于某条多边形的边(当前处理的顶点为P ,先前已处理的多边形顶点为S)与某条裁剪线(窗口的某一边)的比较结果共有以下四种情况,分别需输出一些顶点。请问哪种情况下输出的顶点是错误的? ( )A.
S 和P 均在可见的一侧,则输出点P
B.
S 和P 均在不可见的一侧,则输出0个顶点
C.
S 在可见一侧,P 在不可见一侧,则输出线段SP 与裁剪线的交点和点S
D.
S 在不可见的一侧,P 在可见的一侧,则输出线段SP 与裁剪线的交点和P
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】At last, about twent7 people ______ at the meeting.
A.
turned on
B.
turned up
C.
turned off
D.
turned out
【单选题】The greatest recent social changes have been【C1】______ the lives of women. During the twentieth century there has been a remarkable shortening of the【C2】______ of a woman's life spend in【C3】______ for...
A.
of
B.
for
C.
in
D.
to
【单选题】在Windws7中,关于回收站叙述正确的是:
A.
回收站大小是固定不变的。
B.
回收站中的文件或文件夹是可恢复的。
C.
U盘中的文件被删除后也放入回收站。
D.
回收站中存放的文件断电后自动删除。
【单选题】Shopping habits in the United States have changed greatly in the last quarter of the twentieth century. (1)_____ in the 1990s most American towns and cities had a Main Street. Main Street was always i...
A.
As early as
B.
Early
C.
Early as
D.
Earlier
【简答题】Women also are more active in sports now because of two changes. First, in the early twentieth century, women began to compete regularly in the Olympics. Also, the number of s for women in the Ol...
【简答题】实验三查询3_sql-jxgl.txt 电子作业2-SQL语句练习.doc
相关题目：