关于求一个MESH的最小凸包围体 所谓凸体, 就是从凸体内任意一点,向周围发射线,都只此MESH相交一次。-MESH on the minimum for a convex body surrounded the so-called convex body, convex body from any point, to launch around the line, only this time MESH intersection.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001290s ]
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:0.089078s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001282s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002013s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001303s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003804s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001098s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003381s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014807s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001342s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 165733 [ RunTime:0.001264s ]