实用的凸包算法,包括计算点与水平线的夹角,二分法排序,找极点等。-A practical convex hull algorithm, including calculating angle of the point and horizontal line, dichotomy sort, looking for poles and so on.
文 件 列 表
凸包算法 Properties obj bin Form1.cs Form1.Designer.cs Form1.resx Program.cs TuLine.cs 凸包问题.csproj
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001719s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.066225s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001078s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001194s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001102s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003121s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000853s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003663s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015344s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001238s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 263963 [ RunTime:0.017415s ]