锘??xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>&#27431;&#32654;&#19968;&#21306;&#20108;&#21306;&#25104;&#20154;&#44;&#20122;&#27954;&#22269;&#20135;&#31934;&#21697;&#19968;&#21306;&#20108;&#21306;&#31532;&#22235;&#39029;&#97;&#118;&#13;&#44;&#20037;&#20037;&#20037;&#20037;&#56;&#56;&#33394;&#20599;&#20599;&#20813;&#36153;</title><link>http://m.shnenglu.com/winmain/category/12517.html</link><description>Programming is so cool</description><language>zh-cn</language><lastBuildDate>Wed, 10 Mar 2010 20:44:20 GMT</lastBuildDate><pubDate>Wed, 10 Mar 2010 20:44:20 GMT</pubDate><ttl>60</ttl><item><title>銆愯漿甯栥�戙�?D鏁板鍩虹錛氬浘褰笌娓告垙寮�鍙戙�嬭涔︾瑪璁? </title><link>http://m.shnenglu.com/winmain/archive/2010/02/23/108302.html</link><dc:creator>Code Knight</dc:creator><author>Code Knight</author><pubDate>Tue, 23 Feb 2010 13:11:00 GMT</pubDate><guid>http://m.shnenglu.com/winmain/archive/2010/02/23/108302.html</guid><wfw:comment>http://m.shnenglu.com/winmain/comments/108302.html</wfw:comment><comments>http://m.shnenglu.com/winmain/archive/2010/02/23/108302.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://m.shnenglu.com/winmain/comments/commentRss/108302.html</wfw:commentRss><trackback:ping>http://m.shnenglu.com/winmain/services/trackbacks/108302.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp; 鎽樿: 宸︽墜鍧愭爣緋葷殑鐩磋琛ㄧず錛氬悜閲忕殑琛ㄧず錛堣醬瀵歸綈鍖呭洿鐩掞紙AABB錛坅xially aligned bounding box錛夛級錛夛細2D鍚戦噺鐨勯暱搴︼細||v|| = sqrt(vx*vx + vy*vy)3D鍚戦噺鐨勯暱搴︼細||v|| = sqrt(vx*vx + vy*vy + vz*vz)鏍囧噯鍖栧悜閲忥紳姝ゅ悜閲?姝ゅ悜閲忕殑闀垮害錛漹x / ||v|| , vy / ||v|| , vz / ||v||鏍囧噯鍖栧悗鐨勫悜閲忕殑...&nbsp;&nbsp;<a href='http://m.shnenglu.com/winmain/archive/2010/02/23/108302.html'>闃呰鍏ㄦ枃</a><img src ="http://m.shnenglu.com/winmain/aggbug/108302.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://m.shnenglu.com/winmain/" target="_blank">Code Knight</a> 2010-02-23 21:11 <a href="http://m.shnenglu.com/winmain/archive/2010/02/23/108302.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>銆愯漿璐淬�戠煩闃電殑鏈川-榪愬姩鐨勬弿榪?</title><link>http://m.shnenglu.com/winmain/archive/2010/02/23/108299.html</link><dc:creator>Code Knight</dc:creator><author>Code Knight</author><pubDate>Tue, 23 Feb 2010 13:06:00 GMT</pubDate><guid>http://m.shnenglu.com/winmain/archive/2010/02/23/108299.html</guid><wfw:comment>http://m.shnenglu.com/winmain/comments/108299.html</wfw:comment><comments>http://m.shnenglu.com/winmain/archive/2010/02/23/108299.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://m.shnenglu.com/winmain/comments/commentRss/108299.html</wfw:commentRss><trackback:ping>http://m.shnenglu.com/winmain/services/trackbacks/108299.html</trackback:ping><description><![CDATA[鍓嶄笉涔卌hensh鍑轟簬涓嶅彲鍛婁漢鐨勭洰鐨勶紝瑕佸厖褰撹�佸笀錛屾暀鍒漢綰挎�т唬鏁般�備簬鏄垜琚彧浣忓氨綰挎�т唬鏁頒腑涓�浜涘姟铏氭�х殑闂涓庝粬璁ㄨ浜嗗嚑嬈°�傚緢鏄庢樉錛宑hensh瑙夊緱錛岃璁╄嚜宸卞湪璁茬嚎鎬т唬鏁扮殑鏃跺�欎笉琚偅浣嶅己鍔跨殑瀛︾敓璁や負鏄緇忕梾錛岃繕鏄瘮杈冮毦鐨勪簨鎯呫�?br><font size=3>鍙�滅殑chensh錛岃皝璁╀綘瓚熻繖涓湴闆烽樀錛燂紒鑹蹭護鏅烘槒鍟婏紒</font><br><font size=3>綰挎�т唬鏁拌紼嬶紝鏃犺浣犱粠琛屽垪寮忓叆鎵嬭繕鏄洿鎺ヤ粠鐭╅樀鍏ユ墜錛屼粠涓�寮�濮嬪氨鍏呮枼鐫�鑾悕鍏跺銆傛瘮濡傝錛屽湪鍏ㄥ浗涓�鑸伐縐戦櫌緋繪暀瀛︿腑搴旂敤鏈�騫挎硾鐨勫悓嫻庣嚎鎬т唬鏁版暀鏉愶紙鐜板湪鍒頒簡絎洓鐗堬級錛屼竴涓婃潵灝變粙緇嶉�嗗簭鏁拌繖涓?#8220;鍓嶆棤鍙や漢錛屽悗鏃犳潵鑰?#8221;鐨勫彜鎬蹇碉紝鐒跺悗鐢ㄩ�嗗簭鏁扮粰鍑鴻鍒楀紡鐨勪竴涓瀬涓嶇洿瑙傜殑瀹氫箟錛屾帴鐫�鏄竴浜涚畝鐩寸姱鍌葷殑琛屽垪寮忔�ц川鍜屼範棰樷�斺�旀妸榪欒涔樹竴涓郴鏁板姞鍒板彟涓�琛屼笂錛屽啀鎶婇偅涓�鍒楀噺榪囨潵錛屾姌鑵懼緱閭ｅ彨涓�涓儹闂癸紝鍙氨鏄帇鏍圭湅涓嶅嚭榪欎釜涓滆タ鏈夊槢鐢ㄣ�傚ぇ澶氭暟鍍忔垜涓�鏍瘋祫璐ㄥ鉤搴哥殑瀛︾敓鍒拌繖閲屽氨鏈夌偣鐘檿錛氳繛榪欐槸涓粈涔堜笢瑗塊兘妯℃ā緋婄硦鐨勶紝灝卞紑濮嬮捇鐏湀琛ㄦ紨浜嗭紝榪欐湭鍏嶅お&#8220;鏃犲帢澶?#8221;浜嗗惂錛佷簬鏄紑濮嬫湁浜洪�冭錛屾洿澶氱殑浜哄紑濮嬫妱浣滀笟銆傝繖涓嬪氨涓嫑浜嗭紝鍥犱負鍏跺悗鐨勫彂灞曞彲浠ョ敤涓�鍙ュ嘲鍥炶礬杞潵褰㈠錛岀揣璺熺潃榪欎釜鏃犲帢澶寸殑琛屽垪寮忕殑錛屾槸涓�涓悓鏍鋒棤鍘樺ご浣嗘槸浼熷ぇ鐨勬棤浠ュ鍔犵殑瀹朵紮鐨勫嚭鍦衡�斺�旂煩闃墊潵浜嗭紒澶氬勾涔嬪悗錛屾垜鎵嶆槑鐧斤紝褰撹�佸笀鐘偦浼煎湴鐢ㄤ腑鎷彿鎶婁竴鍫嗗偦浜嗗惂鍙界殑鏁版嫭璧鋒潵錛屽茍涓斾笉绱т笉鎱㈠湴璇達細&#8220;榪欎釜涓滆タ鍙仛鐭╅樀&#8221;鐨勬椂鍊欙紝鎴戠殑鏁板鐢熸動鎺�寮�浜嗕綍絳夋偛澹緵閰搞�佹儴緇濅漢瀵扮殑涓�騫曪紒鑷偅浠ュ悗錛屽湪鍑犱箮鎵�鏈夎窡&#8220;瀛﹂棶&#8221;浜屽瓧紼嶅井娌劇偣杈圭殑涓滆タ閲岋紝鐭╅樀榪欎釜瀹朵紮浠庝笉緙哄腑銆傚浜庢垜榪欎釜娌¤兘涓�嬈℃悶瀹氱嚎鎬т唬鏁扮殑絎ㄨ泲鏉ヨ錛岀煩闃佃�佸ぇ鐨勪笉璇瘋嚜鏉ユ瘡姣忔悶寰楁垜鐏板ご鍦熻劯錛屽ご鐮磋嫻併�傞暱鏈熶互鏉ワ紝鎴戝湪闃呰涓竴瑙佺煩闃碉紝灝卞鍚岄樋Q瑙佸埌浜嗗亣媧嬮瀛愶紝鎻夋弶棰濊灝辯粫閬撹蛋銆?/font><br><font size=3>浜嬪疄涓婏紝鎴戝茍涓嶆槸鐗逛緥銆備竴鑸伐縐戝鐢熷垵瀛︾嚎鎬т唬鏁幫紝閫氬父閮戒細鎰熷埌鍥伴毦銆傝繖縐嶆儏褰㈠湪鍥藉唴澶栫殕鐒躲�傜憺鍏告暟瀛﹀Lars 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size=3>璁よ瘑鍒頒簡榪欎簺錛屾垜浠氨鍙互鎶婃垜浠叧浜庝笁緇寸┖闂寸殑璁よ瘑鎵╁睍鍒板叾浠栫殑絀洪棿銆?strong><font color=#ff0000>浜嬪疄涓婏紝涓嶇鏄粈涔堢┖闂達紝閮藉繀欏誨綰沖拰鏀寔鍦ㄥ叾涓彂鐢熺殑絎﹀悎瑙勫垯鐨勮繍鍔紙鍙樻崲錛夈�備綘浼氬彂鐜幫紝鍦ㄦ煇縐嶇┖闂翠腑寰�寰�浼氬瓨鍦ㄤ竴縐嶇浉瀵瑰簲鐨勫彉鎹紝姣斿鎷撴墤絀洪棿涓湁鎷撴墤鍙樻崲錛岀嚎鎬х┖闂翠腑鏈夌嚎鎬у彉鎹紝浠垮皠絀洪棿涓湁浠垮皠鍙樻崲錛屽叾瀹炶繖浜涘彉鎹㈤兘鍙笉榪囨槸瀵瑰簲絀洪棿涓厑璁哥殑榪愬姩褰㈠紡鑰屽凡銆?/font></strong></font><br><font size=3>鍥犳鍙鐭ラ亾<strong><font color=#ff0000>錛?#8220;絀洪棿&#8221;鏄綰寵繍鍔ㄧ殑涓�涓璞￠泦鍚堬紝鑰屽彉鎹㈠垯瑙勫畾浜嗗搴旂┖闂寸殑榪愬姩銆?/font></strong></font><br><font size=3>涓嬮潰鎴戜滑鏉ョ湅鐪嬬嚎鎬х┖闂淬�傜嚎鎬х┖闂寸殑瀹氫箟浠諱綍涓�鏈功涓婇兘鏈夛紝浣嗘槸鏃㈢劧鎴戜滑鎵胯綰挎�х┖闂存槸涓┖闂達紝閭ｄ箞鏈変袱涓渶鍩烘湰鐨勯棶棰樺繀欏婚鍏堝緱鍒拌В鍐籌紝閭ｅ氨鏄細</font><br><font size=3>1. 絀洪棿鏄竴涓璞￠泦鍚堬紝綰挎�х┖闂翠篃鏄┖闂達紝鎵�浠ヤ篃鏄竴涓璞￠泦鍚堛�傞偅涔堢嚎鎬х┖闂存槸浠�涔堟牱鐨勫璞＄殑闆嗗悎錛熸垨鑰呰錛岀嚎鎬х┖闂翠腑鐨勫璞℃湁浠�涔堝叡鍚岀偣鍚楋紵</font><br><font size=3>2. 綰挎�х┖闂翠腑鐨勮繍鍔ㄥ浣曡〃榪扮殑錛熶篃灝辨槸錛岀嚎鎬у彉鎹㈡槸濡備綍琛ㄧず鐨勶紵</font><br><font size=3>鎴戜滑鍏堟潵鍥炵瓟絎竴涓棶棰橈紝鍥炵瓟榪欎釜闂鐨勬椂鍊欏叾瀹炴槸涓嶇敤鎷愬集鎶硅鐨勶紝鍙互鐩存埅浜嗗綋鐨勭粰鍑虹瓟妗堛�?strong><font color=#ff0000>綰挎�х┖闂翠腑鐨勪換浣曚竴涓璞★紝閫氳繃閫夊彇鍩哄拰鍧愭爣鐨勫姙娉曪紝閮藉彲浠ヨ〃杈句負鍚戦噺鐨勫艦寮忋�?/font></strong>閫氬父鐨勫悜閲忕┖闂存垜灝變笉璇翠簡錛屼婦涓や釜涓嶉偅涔堝鉤鍑＄殑渚嬪瓙錛?/font><br><font 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color=#ff0000><strong>鍚屾牱鐨勶紝瀵逛簬涓�涓嚎鎬у彉鎹紝鍙浣犻�夊畾涓�緇勫熀錛岄偅涔堝氨鍙互鎵懼埌涓�涓煩闃墊潵鎻忚堪榪欎釜綰挎�у彉鎹€�傛崲涓�緇勫熀錛屽氨寰楀埌涓�涓笉鍚岀殑鐭╅樀銆傛墍鏈夎繖浜涚煩闃甸兘鏄繖鍚屼竴涓嚎鎬у彉鎹㈢殑鎻忚堪錛屼絾鍙堥兘涓嶆槸綰挎�у彉鎹㈡湰韜�?/strong></font></font><br><font size=3>浣嗘槸榪欐牱鐨勮瘽錛岄棶棰樺氨鏉ヤ簡濡傛灉浣犵粰鎴戜袱寮犵尓鐨勭収鐗囷紝鎴戞�庝箞鐭ラ亾榪欎袱寮犵収鐗囦笂鐨勬槸鍚屼竴澶寸尓鍛紵鍚屾牱鐨勶紝浣犵粰鎴戜袱涓煩闃碉紝鎴戞�庝箞鐭ラ亾榪欎袱涓煩闃墊槸鎻忚堪鐨勫悓涓�涓嚎鎬у彉鎹㈠憿錛熷鏋滄槸鍚屼竴涓嚎鎬у彉鎹㈢殑涓嶅悓鐨勭煩闃墊弿榪幫紝閭ｅ氨鏄湰瀹跺厔寮熶簡錛岃闈笉璁よ瘑錛屽矀涓嶆垚浜嗙瑧璇濄�?/font><br><font size=3>濂藉湪錛屾垜浠彲浠ユ壘鍒板悓涓�涓嚎鎬у彉鎹㈢殑鐭╅樀鍏勫紵浠殑涓�涓�ц川錛岄偅灝辨槸錛?/font><br><font size=3>鑻ョ煩闃礎涓嶣鏄悓涓�涓嚎鎬у彉鎹㈢殑涓や釜涓嶅悓鐨勬弿榪幫紙涔嬫墍浠ヤ細涓嶅悓錛屾槸鍥犱負閫夊畾浜嗕笉鍚岀殑鍩猴紝涔熷氨鏄�夊畾浜嗕笉鍚岀殑鍧愭爣緋伙級錛屽垯涓�瀹氳兘鎵懼埌涓�涓潪濂囧紓鐭╅樀P錛屼嬌寰桝銆丅涔嬮棿婊¤凍榪欐牱鐨勫叧緋伙細</font><br><font size=3>A = P-1BP</font><br><font size=3>綰挎�т唬鏁扮◢寰啛涓�鐐圭殑璇昏�呬竴涓嬪氨鐪嬪嚭鏉ワ紝榪欏氨鏄浉浼肩煩闃電殑瀹氫箟銆傛病閿欙紝<strong><font color=#ff0000>鎵�璋撶浉浼肩煩闃碉紝灝辨槸鍚屼竴涓嚎鎬у彉鎹㈢殑涓嶅悓鐨勬弿榪扮煩闃點�?/font></strong>鎸夌収榪欎釜瀹氫箟錛屽悓涓�澶寸尓鐨勪笉鍚岃搴︾殑鐓х墖涔熷彲浠ユ垚涓虹浉浼肩収鐗囥�備織浜嗕竴鐐癸紝涓嶈繃鑳借浜烘槑鐧姐�?/font><br><font size=3>鑰屽湪涓婇潰寮忓瓙閲岄偅涓煩闃礟錛屽叾瀹炲氨鏄疉鐭╅樀鎵�鍩轟簬鐨勫熀涓嶣鐭╅樀鎵�鍩轟簬鐨勫熀榪欎袱緇勫熀涔嬮棿鐨勪竴涓彉鎹㈠叧緋匯�傚叧浜庤繖涓粨璁猴紝鍙互鐢ㄤ竴縐嶉潪甯哥洿瑙夌殑鏂規硶鏉ヨ瘉鏄庯紙鑰屼笉鏄竴鑸暀縐戜功涓婇偅縐嶅艦寮忎笂鐨勮瘉鏄庯級錛屽鏋滄湁鏃墮棿鐨勮瘽錛屾垜浠ュ悗鍦╞log閲岃ˉ鍏呰繖涓瘉鏄庛�?/font><br><font size=3>榪欎釜鍙戠幇澶噸瑕佷簡銆?strong><font color=#ff0000>鍘熸潵涓�鏃忕浉浼肩煩闃甸兘鏄悓涓�涓嚎鎬у彉鎹㈢殑鎻忚堪鍟婏紒</font></strong>闅炬�繖涔堥噸瑕侊紒宸ョ鐮旂┒鐢熻紼嬩腑鏈夌煩闃佃銆佺煩闃靛垎鏋愮瓑璇劇▼錛屽叾涓浜嗗悇縐嶅悇鏍風殑鐩鎬技鍙樻崲錛屾瘮濡備粈涔堢浉浼兼爣鍑嗗瀷錛屽瑙掑寲涔嬬被鐨勫唴瀹癸紝閮借姹傚彉鎹互鍚庡緱鍒扮殑閭ｄ釜鐭╅樀涓庡厛鍓嶇殑閭ｄ釜鐭╅樀寮忕浉浼肩殑錛屼負浠�涔堣繖涔堣姹傦紵鍥犱負鍙湁榪欐牱瑕佹眰錛屾墠鑳戒繚璇佸彉鎹㈠墠鍚庣殑涓や釜鐭╅樀鏄弿榪板悓涓�涓嚎鎬у彉鎹㈢殑銆傚綋鐒訛紝鍚屼竴涓嚎鎬у彉鎹㈢殑涓嶅悓鐭╅樀鎻忚堪錛屼粠瀹為檯榪愮畻鎬ц川鏉ョ湅騫朵笉鏄笉鍒嗗ソ鐜殑銆傛湁浜涙弿榪扮煩闃靛氨姣斿叾浠栫殑鐭╅樀鎬ц川濂藉緱澶氥�傝繖寰堝鏄撶悊瑙ｏ紝鍚屼竴澶寸尓鐨勭収鐗囦篃鏈夌編涓戜箣鍒嗗槢銆傛墍浠ョ煩闃電殑鐩鎬技鍙樻崲鍙互鎶婁竴涓瘮杈冧笐鐨勭煩闃靛彉鎴愪竴涓瘮杈冪編鐨勭煩闃碉紝鑰屼繚璇佽繖涓や釜鐭╅樀閮芥槸鎻忚堪浜嗗悓涓�涓嚎鎬у彉鎹€�?/font><br><font size=3>榪欐牱涓�鏉ワ紝鐭╅樀浣滀負綰挎�у彉鎹㈡弿榪扮殑涓�闈紝鍩烘湰涓婅娓呮浜嗐�備絾鏄紝浜嬫儏娌℃湁閭ｄ箞綆�鍗曪紝鎴栬�呰錛岀嚎鎬т唬鏁拌繕鏈夋瘮榪欐洿濂囧鐨勬�ц川錛岄偅灝辨槸錛?strong><font color=#ff0000>鐭╅樀涓嶄粎鍙互浣滀負綰挎�у彉鎹㈢殑鎻忚堪錛岃�屼笖鍙互浣滀負涓�緇勫熀鐨勬弿榪般�?/font><font color=#ff0000>鑰屼綔涓哄彉鎹㈢殑鐭╅樀錛屼笉浣嗗彲浠ユ妸綰挎�х┖闂翠腑鐨勪竴涓偣緇欏彉鎹㈠埌鍙︿竴涓偣鍘伙紝鑰屼笖涔熻兘澶熸妸綰挎�х┖闂翠腑鐨勪竴涓潗鏍囩郴錛堝熀錛夎〃鎹㈠埌鍙︿竴涓潗鏍囩郴錛堝熀錛夊幓銆傝�屼笖錛屽彉鎹㈢偣涓庡彉鎹㈠潗鏍囩郴錛屽叿鏈夊紓鏇插悓宸ョ殑鏁堟灉銆傜嚎鎬т唬鏁伴噷鏈�鏈夎叮鐨勫ゥ濡欙紝灝辮暣鍚湪鍏朵腑銆傜悊瑙ｄ簡榪欎簺鍐呭錛岀嚎鎬т唬鏁伴噷寰堝瀹氱悊鍜岃鍒欎細鍙樺緱鏇村姞娓呮櫚銆佺洿瑙夈�?/font></strong></font> 
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