Kujambula kwa 3D ndi AutoCAD - Gawo 8

Otsatsa a 37.1.5

Kwenikweni, mu Autocad a helix ndi spline ya yunifomu geometry mu 3D malo. Ndilo lotseguka ndi maziko, maziko apamwamba ndi kutalika kwina. Kuti timange helix timagwiritsa ntchito batani lomwe liri ndi dzina lomwelo mu gawo la Zojambula pa tabu la Home. Lamulo lolamulidwa lidzapempha mfundo yapakati pazitsulo, ndiye malo oyambira pansi, ndiye pamwamba pamtunda ndipo, potsiriza, kutalika kwake. Tili ndi mwayi wosankha nambala ya kutembenuka ndi chitsogozo cha kuzunzika, pakati pa ena. Ngati maziko ndi pamwamba ali ofanana, ndiye kuti tidzakhala ndi helicrical helix. Ngati phindu la maziko ndi pamwamba likusiyana, ndiye kuti tidzakhala ndi pulojekiti yodalirika. Ngati maziko oyandikana ndi apamwamba akusiyana ndipo kutalika kuli kofanana ndi zero, ndiye tidzakhala ndi malo mu malo a 2D, monga omwe tinaphunzira mu gawo la 6.5.
Chifukwa ndi spline, zothamanga ziyenera kukhala chifukwa chophunzira gawo la 36.1. Ngakhale mutafufuza mosamala, batani kuti awakokere ndi kujambula zinthu yosavuta 2D, monga rectangles ndi mabwalo. Kodi n'chiyani chimachitika ndi kuti lamulo nthawi pamodzi ndi chindodo 37.1.2 tinaona mu chigawo, kotero kuti angalenge olimba masika monga njira yapafupi ndi kusala. Pachifukwa ichi timagwiritsa ntchito bwalo lomwe limatumikira monga mbiri, ndipo pulogalamuyo imakhala ngati njira.

Makampani a 37.2

Timatchula zinthu zoyambirira zomwe zimakhala zolimba: ndemanga yokhala ndi timagulu ting'onoting'onoting'ono, thambo, silinda, khunyu, mphete ndi toroid. Mukhoza kupeza ndondomeko yotsikayi mu gawo la Modeling la Tsambali la Home, ndi mu gawo loyambirira la tabu lolimba. Monga wowerenga angaganize, pa nthawi yolongosola, lamulo lawindo limapempha zoyenera kuchita malinga ndi zolimba mu funso. Ndipotu, ambiri deta izi ndi ndondomeko imene pempho AutoCAD lifanane ndi anthu a zinthu za 2D amene anachokera. Mwachitsanzo, kuti mupange AutoCAD sphere, mudzapempha kuti malo ndi malo akuwonetseredwe, ngati kuti ndi bwalo. Pankhani ya ndende zamakono, zoyenera kuchita poyamba zimagwirizanitsa ndi zomwe timagwiritsa ntchito kukoka mapiritsi, kuphatikizapo kutalika, ndithudi. Pa mapiramidi timatengera poyoni poyambirira, ndi zina. Kotero kuti si osagwira kuganizira kufunika kwa kudziwa zipangizo 2D zojambula monga chofunika zojambula akutsutsa 3D.
Tiyeni tiwone momwe zigawo zilili zofunika kuti tipeze mitundu yosiyanasiyana ya zilembo zomwe tazilemba. Zilibe zopweteka kuti mupange zopambana pamasamala anu pamakompyuta anu pogwiritsa ntchito njira zomwe aliyense wa iwo angasankhe.

Kumbali ina, ngati tigwiritsa ntchito zojambulajambula zomwe zikuwonetsera mawonekedwe a wireframe, monga tawonera mu gawo la 35.6, ndiye, mwachinsinsi, mawonekedwe a zinthu zolimba amatanthauzidwa ndi mizere ya 4. Kusintha komwe kumatsimikizira nambala ya mizere yomwe imayimirira ndi Isolini. Ngati tilemba zosinthika muwindo lawindo ndikusintha mtengo wake, ndiye zowonjezereka zingayimiridwe ndi mizere yambiri, ngakhale, ndithudi, izo zikhoza kuwononga kufulumira kwa kukonzanso kwa zithunzizo. Kwenikweni kusintha ndiko kusankha, popeza katundu wa olimba sasintha.

Ma Polysolids a 37.3

Kuwonjezera pa wosazindikira, ife angalenge zinthu olimba anachokera ku polylines ndiponso zogwirizana ndi iwo, iwo amatchedwa polisólidos.
Ma polysolids amatha kumveka ngati zinthu zolimba zomwe zimachokera ku extruding, ndi kutalika ndi m'lifupi, mizere ndi arcs. Izi ndizo, tangolani ndi mizere ya malamulo ndi arcs (monga polyline) ndi Autocad zidzasintha kukhala chinthu cholimba ndi kutalika kwake ndi kutalika komwe kungakonzedwe musanayambe chinthucho. Choncho, mwa njira zomwezi, tikhoza kutanthauzira ku polyline, kapena zinthu zina za 2D monga mizere, magulu kapena mabwalo, ndipo izi zidzakhala polysolid. Tiyeni tiwone zitsanzo zomwe zimatilola kugwiritsa ntchito njira zawo zosiyana.

37.4 Chigawo cholimba kwambiri

Zowonjezera zowonjezera zimapangidwa ndi kuphatikizapo zolimba ziwiri kapena zina za mtundu uliwonse: zopanda pake, zowonongeka, zowonjezereka, zowonongeka ndi zowonongeka ndipo zingamangidwe ndi njira zigawo zotsatirazi.

37.4.1 Cut

Monga dzina limatanthawuzira, ndi lamulo ili tikhoza kudula kalikonse pofotokoza ndege yoyendetsa komanso malo omwe ndegeyo idzagwiritsire ntchito. Tiyeneranso kusankha ngati chimodzi mwa magawo awiricho chichotsedwa kapena ngati zonsezi zimasungidwa. Lindo lazowonjezera limasonyeza zonse zomwe mungathe kuti mufotokoze mapulaneti odulidwa, kapena momwe mungagwiritsire ntchito zinthu zina zomwe zimamveka ndegezo.