Ukuvula ifayela le-PCD kungaba umsebenzi oyinselele kulabo abangajwayelene namagama kanye nokucaciswa kobuchwepheshe okuhlobene nefomethi yefayela. Kodwa-ke, ngolwazi olufanele namathuluzi, kungenzeka ukufinyelela lawa mafayela futhi ukwazi ukubuka noma ukuhlela okuqukethwe kwawo ngempumelelo. Kulesi sihloko, sizohlola izici ezibalulekile zobuchwepheshe zendlela yokuvula ifayela le-PCD futhi sinikeze izinyathelo ezinemininingwane zokwenza lokho ngempumelelo. Uma ungathanda ukuthola izimfihlo ezingemuva kwamafayela e-PCD futhi uvule amandla awo, lo mhlahlandlela wobuchwepheshe uzoba umsizi wakho omkhulu.
1. Isingeniso kumafayela e-PCD: amafomethi nezici zobuchwepheshe
Amafayela e-PCD (I-Point Cloud Data) ayifomethi yefayela esetshenziselwa ukugcina idatha emafini angamaphoyinti amathathu-ntathu. Ulwazi oluqukethwe kulawa mafayela lukhiqizwa ngemishini yokuskena nge-laser futhi lusetshenziswa ezinhlelweni ezifana nokuhlola indawo, ukumodela kwe-3D, kanye neqiniso elibonakalayo. Lawa mafayela awusizo kakhulu ezindaweni ezifana nobunjiniyela, izakhiwo kanye nemithi, njengoba evumela izinto nezikhala ukuthi zimelelwe ngokunemba okukhulu.
Esinye sezici zobuchwepheshe ezibaluleke kakhulu zamafayela e-PCD yikhono lawo lokugcina inani elikhulu ledatha, okuwenza abe ithuluzi elibalulekile lokuthwebula nokuhlaziya imininingwane enezinhlangothi ezintathu enemininingwane. Lawa mafayela aphinde asekele amafomethi ahlukene wamaphuzu, njengokujwayelekile, i-RGB, nokuqina, ukwandisa ukuguquguquka kwawo kanye nokuvumela ukuhlaziywa okunembe kakhudlwana.
Ukuze usebenze ngamafayela e-PCD, kunamathuluzi ahlukahlukene nezinhlelo ezitholakalayo, njenge-PCL (Point Cloud Library) kanye ne-CloudCompare. Lawa mathuluzi akuvumela ukuthi ubuke, ucubungule futhi ulawule idatha equkethwe kumafayela e-PCD, enza kube lula ukuhlaziya nokusetshenziswa kwawo ezinhlelweni ezihlukene. Ukwengeza, kukhona okokufundisa nezinsiza eziku-inthanethi ezingasiza abasebenzisi ukuthi bajwayelane nefomethi nezici zobuchwepheshe zamafayela e-PCD, okuwenza abe lula ukuwahlanganisa kumaphrojekthi athile.
2. Amathuluzi adingekayo ukuze uvule ifayela le-PCD
Ukuze uvule ifayela le-PCD, amanye amathuluzi athile ayadingeka. Ngezansi kukhona amathuluzi adingekayo nendlela yokuwasebenzisa:
1. Isofthiwe yokubona ngeso lengqondo ye-3D: Ukuze uvule futhi ubuke amafayela e-PCD, uzodinga isofthiwe yokubuka ye-3D esekela le fomethi. Kunezinketho ezimbalwa ezitholakalayo, ezifana ne-CloudCompare, i-MeshLab, ne-PointCab. Lezi zinhlelo zikuvumela ukuthi ubuke okuqukethwe kwefayela le-PCD ngendlela emele izinhlangothi ezintathu.
2. Abaguquli befomethi: Uma ungakwazi ukufinyelela isofthiwe yokubuka ye-3D esekela amafayela e-PCD, ungasebenzisa iziguquli zefomethi ukuze uguqule ifayela libe yifomethi evamile kakhulu. Amathuluzi afana ne-PCL (I-Point Cloud Library) anemisebenzi yokuguqula amafayela e-PCD abe amafomethi afana ne-XYZ, i-PLY noma i-STL, asekelwa kabanzi ezinye izinhlelo zokubonisa nge-3D.
3. Capacidades de programación: Uma ungunjiniyela noma unolwazi lokuhlela, ungasebenzisa amalabhulali ezinhlelo namathuluzi ukuze uvule futhi ulawule amafayela e-PCD. Isibonelo, i-PCL (I-Point Cloud Library) iyilabhulali yomthombo ovulekile ehlinzeka ngemisebenzi nama-algorithms okusebenza ngamafu ephuzu, okuhlanganisa namafayela e-PCD.
3. Isinyathelo ngesinyathelo: Ungalivula kanjani ifayela le-PCD ku-Windows
Ukuvula ifayela le-PCD ku-Windows kungaba inqubo esheshayo nelula uma ulandela izinyathelo ezifanele. Indlela yokwenza ngokunembile izochazwa ngezansi:
1. Landa bese ufaka isofthiwe efanele: Ukuze uvule amafayela e-PCD ku-Windows, udinga isibukeli sesithombe esikhethekile. Kunconywa ukuthi ulande futhi ufake izinhlelo ezifana ne-Adobe Photoshop noma i-GIMP, ezinikeza amathuluzi athuthukile wokuhlela nokubuka lezi zinhlobo zamafayela.
2. Vula uhlelo: Uma isofthiwe isifakiwe, yivule kumenyu yokuqala noma isinqamuleli kudeskithophu. Linda ukuthi uhlelo lokusebenza lulayishe ngempumelelo ngaphambi kokudlulela esinyathelweni esilandelayo.
3. Ngenisa ifayela le-PCD: En ibha yamathuluzi yohlelo, bheka inketho yokuvula amafayela noma ukungenisa izithombe. Chofoza kuyo bese uzulazula uye endaweni lapho ifayela le-PCD ofuna ukulivula likhona. Khetha ifayela bese uchofoza "Vula." Uhlelo kufanele lulayishe ifayela le-PCD futhi libonise efasiteleni elikhulu. Manje ungahlola futhi usebenze ngefayela le-PCD ku-Windows!
4. Ungalivula kanjani ifayela le-PCD ku-Mac: Umhlahlandlela onemininingwane
Ukuze uvule ifayela le-PCD ku-Mac, udinga ukusebenzisa ithuluzi elikhethekile. Ngenhlanhla, kunezinketho ezimbalwa ezitholakalayo ezizokuvumela ukuthi ubuke futhi usebenze ngamafayela e-PCD kalula nangempumelelo. Lapha sethula umhlahlandlela onemininingwane enezinyathelo ezidingekayo zokuwufinyelela:
1. Landa futhi ufake isibuki sesithombe esihambisana namafayela e-PCD: Qala ngokuvula isiphequluli sakho sewebhu bese ucinga izibukeli zezithombe ezisekela amafayela e-PCD e-Mac Ezinye izinketho ezidumile zifaka i-XnView MP, i-IrfanView, ne-Adobe Photoshop. Khetha leyo evumelana kangcono nezidingo zakho bese ulandela imiyalelo yokufaka enikezwe umenzi.
2. Vula isibukeli sesithombe: Uma isibukeli sesithombe sesifakiwe ku-Mac yakho, sivule ngokuchofoza kabili isithonjana saso. Kuye ngesibukeli osikhethile, kungase kudingeke ukuthi ungenise ifayela le-PCD noma ulihudule bese ulidedela ngqo efasiteleni lohlelo.
3. Hlola futhi usebenze ngefayela lakho le-PCD: Njengoba isibukeli sesithombe sivuliwe, manje ungahlola futhi usebenze ngefayela le-PCD. Sebenzisa amathuluzi nemisebenzi etholakala kusibukeli ukuze usondeze, ujikeleze, unqampune, noma wenze noma yiziphi ezinye izinguquko ozifunayo. Ukwengeza, ezinye izibukeli zizokuvumela futhi ukuthi uthumele ifayela le-PCD kwamanye amafomethi ezithombe ezivame kakhulu, njenge-JPEG noma i-PNG, uma uthanda.
5. Izinhlelo zokusebenza ezinconyiwe nesofthiwe yokuvula amafayela e-PCD
Uma unamafayela anesandiso se-PCD futhi udinga ukuwavula, kunezinhlelo zokusebenza ezimbalwa ezinconyiwe nesofthiwe engakusiza. Ngezansi, sizobalula ezinye izinketho ongazicabangela:
1. I-Adobe Photoshop: Le software edumile yokuhlela izithombe ingavula amafayela e-PCD kalula. Kufanele uvule uhlelo, chofoza "Ifayela", khetha "Vula" bese uthola bese ukhetha ifayela le-PCD ofuna ukulibuka noma ukulihlela.
2. ACDSee Photo Studio: Lolu hlelo lokusebenza oluklanyelwe ngokukhethekile ukubuka nokuhlela izithombe, futhi likuvumela ukuthi uvule amafayela e-PCD ngokushesha. Kufanele nje uqale uhlelo, iya kokuthi "Ifayela", chofoza u-"Vula" futhi uthole ifayela le-PCD ofuna ukulivula. I-ACDSee Photo Studio iphinde inikeze amathuluzi okuhlelwa kwesithombe okuyisisekelo.
3. I-XnView: Leli thuluzi lamahhala nelivulekile lomthombo kungolunye uhlelo oluhle kakhulu lokuvula amafayela e-PCD. Uma usuyifakile, ungavula uhlelo, ukhethe “Ifayela,” chofoza u-“Vula,” bese upheqa bese ukhetha ifayela le-PCD ofuna ukulivula. I-XnView isekela amafomethi ezithombe ahlukahlukene futhi ikuvumela ukuthi ubuke kalula, uhlele futhi uhlele izithombe zakho.
6. Ukuxazulula izinkinga ezivamile ngokuvula amafayela e-PCD
Kulokhu okuthunyelwe, sizokukhombisa ukuthi ungazilungisa kanjani izinkinga ezijwayelekile lapho uvula amafayela e-PCD. Kwesinye isikhathi uma uzama ukuvula ifayela le-PCD, ungahlangabezana namaphutha noma ubunzima. Lapha sethula izixazululo eziningana Igxathu emvakwe gxathu para resolver estos problemas.
1. Hlola ukuhambisana kohlelo: Isinyathelo sokuqala siwukuqinisekisa ukuthi usebenzisa uhlelo olusekela amafayela e-PCD. Ezinye izinhlelo zokusebenza zokubuka izithombe aziyisekeli le fomethi. Uma ungenalo uhlelo olufanelekile, sincoma ukuthi ulande futhi ufake isibukeli se-PCD esithembekile.
2. Buyekeza isofthiwe: Uma usuvele unesibukeli se-PCD esifakiwe, qiniseka ukuthi sibuyekezelwe enguqulweni yakamuva. Onjiniyela bavame ukukhipha izibuyekezo ukuze balungise izinkinga futhi bathuthukise ukuhambisana. Hlola iwebhusayithi yohlelo ukuze ubone ukuthi izinguqulo ezintsha ziyatholakala yini futhi ubuyekeze ngokufanele.
3. Hlola ubuqotho befayela: Ifayela le-PCD lingase lonakaliswe noma lingaphelele, okwenza kube nzima ukulivula. Zama ukulanda ifayela futhi emthonjeni wangempela noma ucele umthumeli ukuthi akuthumelele futhi. Uma ungakwazi ukulivula, ungazama ukulungisa ifayela usebenzisa amathuluzi athile okulungisa ifayela le-PCD atholakala ku-inthanethi.
Khumbula ukuthi inkinga ngayinye ingaba nezixazululo ezihlukene, ngakho-ke sincoma ukuthi uzame lezi zinketho ngokulandelana kwethulwa. Uma zingekho kulezi zinyathelo ezixazulula inkinga, kungase kudingeke ukuthi uxhumane nochwepheshe bekhompuyutha noma usekelo lwezobuchwepheshe ngohlelo oluthile olusebenzisayo. Sithemba ukuthi lezi zixazululo zikusiza ukuthi uvule amafayela akho PCD ngaphandle kwezinkinga. Ngikufisela inhlanhla!
7. Uguqulela kanjani ifayela le-PCD kwenye ifomethi ehambisanayo
Ukuguqula ifayela le-PCD liye kwenye ifomethi ehambisanayo, kunezindlela ezimbalwa namathuluzi atholakalayo enza inqubo ibe lula. Kulesi sigaba, sizokwethula izinyathelo ezilula zokwenza lokhu kuguqulwa ngempumelelo futhi ngaphandle kwezinkinga.
1. Sebenzisa isofthiwe yokuguqula okukhethekile: Enye inketho ukusebenzisa izinhlelo zokuguqula amafayela, njenge-Adobe Photoshop noma i-Corel PaintShop Pro, ekuvumela ukuthi uvule amafayela e-PCD futhi uwagcine kwamanye amafomethi, njenge-JPEG noma i-TIFF. Lezi zinhlelo ngokuvamile kulula ukuzisebenzisa futhi zinikeza izinketho zokumisa ukuze ulungise ikhwalithi nosayizi wesithombe esiwumphumela.
2. Guqula ku-inthanethi: Kukhona futhi amathuluzi aku-inthanethi amahhala aguqula amafayela e-PCD abe kwamanye amafomethi ngaphandle kokufaka isofthiwe eyengeziwe. Lawa mathuluzi avamise ukuba nesixhumi esibonakalayo esisebenziseka kalula futhi adinga kuphela ukuthi ulayishe ifayela le-PCD bese ukhetha ifomethi yokukhiphayo oyifunayo. Ezinye izibonelo ezidumile yi-Online Convert, Convertio, ne-Zamzar.
8. Ungalivula kanjani ifayela le-PCD ezinhlelweni zokuhlela izithombe
Ukuze uvule ifayela le-PCD ezinhlelweni zokuhlela izithombe, uzodinga ukulandela izinyathelo ezimbalwa ezilula. Okulandelayo, sizokukhombisa ukuthi ungakwenza kanjani:
Isinyathelo 1: Uma ungenalo uhlelo lokuhlela isithombe olusekela amafayela e-PCD, uzodinga ukulanda olusekelayo. Ezinye izinketho ezidumile zifaka i-Adobe Photoshop, iCorel PaintShop Pro, ne-GIMP. Izinhlelo ezinjalo zivame ukutholakala ukuze zilandwe ku-inthanethi.
Isinyathelo 2: Uma usufake uhlelo lokuhlela isithombe ekhompyutheni yakho, luvule bese ubheka inketho ethi "Vula" noma "Ngenisa" kumenyu enkulu. Chofoza le nketho ukuze ubonise iwindi le-pop-up.
Isinyathelo 3: Ngaphakathi kwewindi le-pop-up, zulazula uye endaweni lapho ifayela le-PCD ofuna ukulivula likhona. Khetha ifayela bese uchofoza okuthi “Vula” noma “Ngenisa” ukuze ulilayishe kuhlelo lokuhlela isithombe. Manje ungaqala ukusebenza ngefayela le-PCD, uhlele okuqukethwe kwalo futhi wenze izinguquko ngokwezidingo zakho.
9. Ukuhlola Okungenzeka: Ungalibuka Kanjani Futhi Uliphathe Ifayela Le-PCD
Kulokhu okuthunyelwe, sizohlola amathuba okubuka kanye nokukhohlisa ifayela le-PCD. Ifayela le-PCD, noma i-Point Cloud Data, iwumfanekiso onezinhlangothi ezintathu wamaphuzu avame ukusetshenziswa ekuboneni ngekhompyutha nasezinhlelweni zokucubungula izithombe.
Kunamathuluzi amaningana atholakalayo ukuze ubuke futhi uphathe amafayela e-PCD. Enye yezinketho ezidume kakhulu isoftware yomthombo ovulekile i-PCL (I-Point Cloud Library). I-PCL inikezela ngezinhlobonhlobo zama-algorithms nemisebenzi yokusebenza ngamafayela e-PCD. Ungalanda isoftware mahhala kuwebhusayithi yayo esemthethweni.
Uma usuyifakile i-PCL kukhompyutha yakho, ungaqala ukuhlola amathuba okubuka kanye nokukhohlisa amafayela e-PCD. Ukubuka ifayela le-PCD, ungasebenzisa umsebenzi we-PCL “pcl_viewer”. Leli thuluzi likuvumela ukuthi ulayishe ifayela le-PCD futhi ubuke imodeli efasiteleni le-3D elisebenzisanayo. Ngokungeziwe ekubukeni okuyisisekelo, ungakwazi futhi ukuzungezisa, ukusondeza nokusondeza imodeli ukuze uyihlole usuka kuma-engeli ahlukene.
Ukukhohlisa ifayela le-PCD, ungasebenzisa imisebenzi nama-algorithms ahlinzekwe yi-PCL. Isibonelo, ungasebenzisa umsebenzi we- “pcl::transformPointCloud” ukuze usebenzise uguquko emaphoyintini efayela le-PCD. Lo msebenzi ukuvumela ukuthi usebenzise i-matrix yokuguqula engu-4x4 emaphoyintini, okukuvumela ukuthi wenze imisebenzi efana nokuzungezisa, ukukala, noma ukuhumusha imodeli. Ngaphezu kwalokho, i-PCL iphinde inikeze uchungechunge lwama-algorithms okuhlunga amaphuzu, ukuthola izici, nokwenza eminye imisebenzi ethuthukisiwe kumafayela e-PCD.
10. Amathiphu nemikhuba engcono kakhulu uma usebenza ngamafayela e-PCD
- Sebenzisa isofthiwe ehambisana namafayela e-PCD: Qiniseka ukuthi usebenzisa isofthiwe esekela ukuvula nokuhlela amafayela e-PCD. Ezinye izinhlelo ezidumile ezisekela le fomethi yi-Adobe Photoshop, CorelDRAW, ne-GIMP. Lawa mathuluzi azokuvumela ukuthi uvule futhi uhlele amafayela e-PCD ngaphandle kwezinkinga.
- Londoloza amafayela e-PCD ngefomethi ehambisanayo: Uma udinga ukwabelana noma ukuthumela amafayela e-PCD, qiniseka ukuthi uwagcina ngefomethi esekelwe. Inketho evamile ukuguqula amafayela e-PCD abe ifomethi yendawo yonke, njenge-JPEG noma i-TIFF. Lokhu kuzoqinisekisa ukuthi abamukeli bangakwazi ukuvula nokubuka amafayela ngaphandle kwezinkinga.
- Qaphela lapho usebenza namafayela e-PCD: Amafayela e-PCD angazwela kakhulu futhi athambekele ekonakaleni uma ephethwe ngokungalungile. Ukuze ugweme izinkinga, qiniseka ukuthi unamakhophi ayisipele amafayela akho angempela ngaphambi kokwenza izinguquko. Futhi, sebenzela ikhophi yefayela kunelokuqala ukuze unciphise noma iyiphi ingozi yokulimala kwengozi.
11. Ukwandisa ulwazi: Amafomethi ezithombe ahlobene ne-PCD
Amafomethi ezithombe ahlobene ne-PCD (I-CD Yesithombe) asetshenziswa kakhulu embonini yezithombe futhi anikezela ngekhwalithi yesithombe ephezulu ukuze kubukwe futhi kudlalwe. Kulesi sihloko, sizokwandisa ulwazi lwethu mayelana nalawa mafomethi futhi sihlole izici ezithile ezibalulekile.
1. Amafomethi wesithombe se-PCD: Kunamafomethi amabili amakhulu ahlobene ne-PCD: Ifomethi yesithombe se-PCD kanye nefomethi yefayela le-PCD. Ifomethi yesithombe se-PCD isetshenziswa ukugcina izithombe kuma-CD-ROM Photo CD discs. Lezi zithombe zingaqukatha imibala efika ezigidini ezingu-16.7 futhi zibe nokulungiswa okungafika kumaphikiseli angu-3072 x 2048. Ngakolunye uhlangothi, ifomethi yefayela le-PCD igcina imininingwane ehlobene nesithombe njengemethadatha nezithonjana.
2. Ukuguqulwa kwefomethi ye-PCD: Uma ufuna ukusebenza ngezithombe ngefomethi ye-PCD, ungase udinge ukuziguqulela kwamanye amafomethi avamile, njenge-JPEG noma i-PNG. Kunamathuluzi ahlukahlukene atholakalayo ku-inthanethi akuvumela ukuthi wenze lokhu kuguqulwa. Inketho ethandwayo yi- Isoftware ye-Adobe I-Photoshop, enikeza ukuhlelwa kwesithombe okuthuthukisiwe nezici zokuguqula.
3. Ukubuka izithombe ze-PCD: Ukubuka izithombe ngefomethi ye-PCD kukhompyutha yakho, ungasebenzisa izibukeli zezithombe ezimbalwa ezisekela le fomethi. Enye yazo yi-Windows Image Viewer, ehlanganiswe ku- isistimu esebenzayo. Ukwengeza, ungathola izinhlelo ezikhethekile ekubukeni izithombe ngefomethi ye-PCD, njengesofthiwe ye-Kodak Photo CD.
Kafushane, amafomethi ezithombe ahlobene ne-PCD anikeza ikhwalithi yesithombe ehlukile futhi asetshenziswa kakhulu embonini yezithombe. Uma udinga ukusebenza ngalezi zinhlobo zamafayela, qiniseka ukuthi unamathuluzi alungile okubuka nokuguqula izithombe ngefomethi ye-PCD. Nweba ulwazi lwakho mayelana nalawa mafomethi futhi ujabulele izithombe zekhwalithi ephezulu!
12. Ulabelana kanjani ngefayela le-PCD ngokuphepha nangempumelelo
Yabelana ngefayela le-PCD ngokuphephile futhi ukusebenza kahle kungaba umsebenzi obalulekile uma kuziwa ekuvikeleni ulwazi oluyimfihlo. Nansi inkomba yesinyathelo ngesinyathelo ukuqinisekisa ukuthi amafayela akho e-PCD avikelekile ngesikhathi sokudlulisa:
1. Sebenzisa isofthiwe yokucindezela: Ukuqinisekisa ukusebenza kahle kokudlulisa, kuyatuseka ukusebenzisa isofthiwe yokucindezela efana ne-WinRAR noma i-7-Zip. Lezi zinhlelo zikuvumela ukuthi wehlise usayizi wefayela le-PCD futhi ulivikele ngephasiwedi. Ngale ndlela, ifayela lizoba lula futhi lisheshe ukwabelana futhi abantu abagunyaziwe kuphela abazokwazi ukulifinyelela.
2. Sebenzisa izinsizakalo zokugcina izinto efwini Kuvikelekile: Esikhundleni sokuthumela ifayela le-PCD nge-imeyili nanoma yiziphi ezinye izindlela ezingavikelekile, cabanga ukusebenzisa amasevisi okugcina amafu ngezinyathelo zokuphepha eziqinile, njenge I-Google Drayivu noma iDropbox. Lawa masevisi akuvumela ukuthi wabelane ngefayela ngendlela ebethelwe futhi usethe izimvume zokukhawulela ukufinyelela kwabamukeli abahlosiwe kuphela. Ngaphezu kwalokho, ungaba nokulawula inguqulo nokufinyelela kumafayela noma kunini futhi kunoma iyiphi idivayisi.
13. Uyikhipha kanjani idatha kanye nemethadatha kufayela le-PCD
Ukuze kukhishwe idatha nemethadatha kufayela le-PCD, umtapo wezincwadi we-PCL (Point Cloud Library) ungasetshenziswa. I-PCL iyilabhulali yomthombo ovulekile equkethe imisebenzi eminingi nama-algorithms okucubungula amafu wephoyinti le-3D.
Isinyathelo sokuqala sokukhipha idatha nemethadatha kufayela le-PCD ukufaka i-PCL kusistimu yakho. Imiyalelo yokufaka enemininingwane ingatholakala emibhalweni esemthethweni ye-PCL. Uma i-PCL isifakiwe, ungaqala ukusebenzisa imisebenzi yayo namakilasi kukhodi yakho.
Ukukhipha idatha kufayela le-PCD, ungasebenzisa i-pcl::io::loadPCDFile class. Leli klasi lihlinzeka ngomsebenzi wokulayisha ifayela le-PCD ku-pcl::Into ye-PointCloud. Ngokwesibonelo:
«`cpp
pcl::PointCloud
pcl::io::loadPCDFile
«`
Kule khodi engenhla, sidale into yohlobo lwe-pcl::PointCloud
Ngokungeziwe kudatha, ungaphinda ukhiphe imethadatha kufayela le-PCD. Imethadatha ingabandakanya ulwazi olwengeziwe olufana nesistimu yokuxhumanisa, ukulungiswa, inombolo yamaphoyinti, njll. Ukufinyelela imethadatha yefayela le-PCD, ungasebenzisa i-pcl::Ikilasi le-PCDReader nomsebenzi walo we-getMetadata. Ngokwesibonelo:
«`cpp
pcl::Umfundi we-PCDReader;
pcl::PCDMetaData metadata;
reader.getMetadata("file.pcd", imethadatha);
«`
Kule khodi engenhla, sidale into yohlobo lwe-pcl::PCDReader futhi sasebenzisa umsebenzi we-getMetadata ukuze sithole imethadatha yefayela elithi "file.pcd". Manje, into "yemethadatha" iqukethe imininingwane yemethadatha yefayela le-PCD. Ungafinyelela imethadatha ngokusebenzisa izinhlelo zokufinyelela ezinikezwe ikilasi le-pcl::PCDMetaData.
14. Ikusasa kanye nezitayela zamafayela e-PCD embonini yezithombe
Imboni yezithombe ibone impumelelo ngokuvela kwamafayela e-PCD. Lawa mafayela akuvumela ukuthi uthwebule futhi ulondoloze izithombe zekhwalithi ephezulu, kokubili ezithombeni ezidijithali naseziskeneni. Njengoba umhlaba wedijithali uqhubeka nokuvela, kubalulekile ukuthi uhlale wazi amathrendi esikhathi esizayo ahlobene namafayela e-PCD.
Enye yamathrendi amakhulu alindelwe esikhathini esizayo samafayela e-PCD ukuhambisana kwawo okukhulu ne amadivayisi ahlukene kanye nesofthiwe. Njengamanje, amafayela e-PCD angavulwa futhi ahlelwe ngesofthiwe ethile, kodwa kulindeleke ukuthi esikhathini esizayo esiseduze angabukwa futhi ahlelwe ezinhlobonhlobo zezinhlelo zokuhlela izithombe nezinhlelo zokusebenza. Lokhu kuzovumela ukuguquguquka okukhulu kanye nokusebenziseka kalula kwabasebenzisi.
Omunye umkhuba oqashelwayo ukuthuthukiswa kwama-algorithms athuthuke kakhulu okucindezela nokugcinwa kwezithombe ze-PCD. Njengoba izithombe zedijithali ziba zinkulu futhi zinemininingwane eyengeziwe, kubalulekile ukuthola izindlela ezisebenza kahle zokuminyanisa lezi zithombe ngaphandle kokulahlekelwa yikhwalithi. Ukuthuthuka kobuchwepheshe bokucindezela izithombe kuzovumela ukusebenza okuthuthukisiwe kanye nolwazi lokubuka olushelelayo lwabasebenzisi. Ukwengeza, amafayela e-PCD kulindeleke ukuthi abe angasindi ngokwandayo futhi athathe indawo yokugcina encane, awenze afinyeleleke kalula futhi kube lula ukwabelana ngawo.
Kafushane, ikusasa lamafayela e-PCD embonini yezithombe lithembisa ukujabulisa futhi ligcwele amathuba. Ngokuhambisana okukhulu namadivayisi ahlukahlukene kanye nesoftware, kanye nama-algorithms athuthuke kakhulu okucindezela isithombe nokugcinwa, amafayela e-PCD alungele ukudlala indima ebalulekile emhlabeni wezithombe zedijithali. Ukuhlala unolwazi lwakamuva ngalezi zindlela kubalulekile kochwepheshe bemboni kanye nabathandi bezithombe, njengoba kuzobavumela ukuthi basebenzise ngokugcwele amakhono amafayela e-PCD futhi bahlale bephambili kwezobuchwepheshe.
Sengiphetha, ukuvula ifayela le-PCD kungase kubonakale kuyinselele yobuchwepheshe, kodwa ngamathuluzi afanele nolwazi, kuyinqubo elula. Kuso sonke lesi sihloko, sihlole izindlela ezahlukene zokuvula ifayela le-PCD futhi sanikeza imiyalelo enemininingwane yendlela ngayinye.
Kubalulekile ukuqaphela ukuthi indlela ngayinye inezinzuzo zayo kanye nokulinganiselwa kwayo, ngakho-ke kubalulekile ukukhetha inketho evumelana nezidingo zakho kanye namakhono obuchwepheshe. Kungakhathaliseki ukuthi usebenzisa isofthiwe ekhethekile, iziguquli eziku-inthanethi noma imitapo yolwazi yokuhlela, kunesixazululo esitholakalayo saso sonke isimo.
Ngaphezu kwalokho, sigqamisa ukubaluleka kokuba nesibukeli esifanelekile ukuze sisebenze namafayela e-PCD. Lokhu kuzoqinisekisa ukuthi ungakwazi ukubuka, ukukhohlisa nokuhlaziya idatha ngendlela efanele.
Njengenjwayelo, sincoma ukuthi ugcine izinhlelo zakho zisesikhathini samanje futhi wenze isipele amafayela abalulekile ukuze ugweme noma yikuphi ukulahleka kwedatha. Ukwengeza, sikukhuthaza ukuthi uqhubeke uhlole amakhono amafayela e-PCD futhi usebenzise ngokugcwele amandla awo kumaphrojekthi akho obuchwepheshe.
Sithemba ukuthi lesi sihloko sikunikeze ulwazi oludingekayo kanye nesiqondiso sokuvula amafayela e-PCD ngempumelelo. Uma uneminye imibuzo eyengeziwe noma ukuphawula, ungangabazi ukubheka imibhalo yesofthiwe esetshenzisiwe noma ufune usizo lobuchwepheshe olukhethekile.
Ungangabazi ukuhlola umhlaba omkhulu wamafayela e-PCD futhi uthole wonke amathuba akunikezayo emkhakheni wakho wobungcweti!
Ngingu-Sebastián Vidal, unjiniyela wekhompyutha ozifelayo ngobuchwepheshe kanye ne-DIY. Ngaphezu kwalokho, ngingumdali we tecnobits.com, lapho ngabelana khona ngezifundo zokwenza ubuchwepheshe bufinyeleleke kakhudlwana futhi buqonde wonke umuntu.