Kaha 3D me AutoCAD - Paukū 8

MOKUNA 36: NĀ NUI 3D

Loaʻa nāʻanoʻano 3 mea likeʻole 3D: Nā mea kaulike, nāʻene a me nā kaula. E like me ko mākouʻikeʻana i kekahi manawa ma hope aku, ua loaʻa i kēlā me kēia o lākou nā waiwai a me nā hana hoʻohālikelike e hiki ai ke hui pūʻia e hāʻawi iā mākou i nā mea hana likeʻole no ka hanaʻana o nā pepa.
Eia naʻe, 2D ole e like me laina, arcs, splines, etc., hiki i ke kai piha i loko o ka wahi 3D, ka wā a pau a me ka hapa o kona anahonua ua aia i loko o ka Z (axis) aiee ma kela aoao o ka XY pelane. I ka mea, hoʻowahāwahā i ke ola ana o ka ho'ākāka 'ia i mea 3D ua oleloia, ia mea,ʻaʻole uncommon i kēlā wā i kēia wā mākou i i ke kikoo aku i ka laina a me ka p ÷ ai ma luna o ke kumu hoʻohālike, a mākou i ke manipulate i loko o kēia wahi 3D. No laila, e mākou mua o ka poe ola, nana aku oe i ka wa a ke huki 2D 3D nā mea i loko o ka lewa, no laila, ua hoʻoneʻe mākou koke i ka hana a me ka hoʻololi 3D nä mea like me Autocad mea hana.

Nā 36.1 Lines, nā pale a me nā polyline i ka hanana 3D

E like me ua wehewehe, ua hiki ke unuhi 'âina' ole e like laina, a koʻikoʻi a hanohano, e hoike ana i kona ekolu wahi: X, Y a me Z. E like me ia ma ka hana 2D, ulu ka manaʻo pohihihi o ka unuhi, ua hiki no kuʻu kaumaha aku ia makou iho i na mea no ka hanaʻana i nā mea hou, me nā kānana kiko a me nā kānana kiko. Ua hiki no hoi e malama nei me ka hoʻolālā no ka unuhi, hooholo hou SCP kona wahi Nohie i ka manao paa o ka ekolu-dimensional wahi o ka hou mea. Eia naʻe, ina ua unuhi ae la ia i ka piha kükohu me 2D mea, i ka hopena o ka wireframe ole i ka manao, hoakaka mai ke ano a me ka hoʻoponopono. ʻOiai pēlā, pono mākou eʻike i kekahi hiʻohiʻona e hiki ai iā mākou ke hōʻike i ka mea a mākou e kamaʻilio nei.
Ina i loko o ka aʻe 2D unuhi o ka hale-lumi alodio, ke makemake e ho okumu i ka elevation ma ka wireframe, kona mau pā, pela oe i ke kikoo laina, mai na kihi mai o ka lumi a hiki i ke kiekie o 2.20 huahelu (i aie i ka mika) ma ka iho (axis) Z. e hana i kēia, mua makemake i ka ho nānaina ma ke ala e leie aku mākou eʻike i ke elevation, no ka laʻana i loko o isometric nānaina. A iʻole,ʻoi aku kaʻoi aku o kaʻike hoʻokahi ma kaʻikeʻana i nā'ōkuhi kiʻi. A laila mākou e hana mākou laina hoʻohuiʻia ekolu hana i hoike ia ma luna: wahi kānana, e hoopii mai ai kūmole a me ka hou SCP, iwaena o na mea e ae, e like me loaʻa hoʻoponopono.

E like me kāu eʻike ai, hiki ke hana i kahi o nā mea 2D ma ka 3D ma o ka hopuʻana i nā kuʻuna kūlike a iʻole e hoʻohana i nā kumuhana'ē aʻe e like me nā mea i hōʻike waleʻia. Hiki iā mākou ke hana i nā mea 2D i loko o ka lele o XY ma mua a laila neʻe iā 3D, me ka hoʻohanaʻana i nā mea hoʻoponopono eʻikeʻia ai ma ka paukū e pili nei.

36.1.1 Hoʻoponopono i nā meaʻuʻuku i 3D

Hapanui hoʻoponopono kauoha a mākou i aʻo ma ka mokuna 17 3D hana me ka mea, akā, koi Z nā loina a me ka hanaia'na hoi o SCP e puku i ka Z (axis) o ka SCU, ma ka iho (axis) o ka XY pelane ua kūlike loa i oleloia. E noonoo oukou i kumu hana, ke hoʻohana i ka typical pae'ōnaehana ma 2D E neenee kauoha, akā, e hoike ana i ka piha waiwai no ka Z (axis) ma luna o kekahi wireframe.

Ka Symmetry eiiaiaea hana me ka 3D mea, akā, i ka symmetry koʻi lipi manawa e orthogonal i kaʻikena XY pelane, pela no ka mea pono e ao e pili ana i SCP He kaila, a loaa unexpected hopena. Ma nā'ōlelo'ē aʻe, hikiʻole iā mākou keʻimi i kahi kikowaena ma ka māhele 3D e like me ko mākou makemake, no ka mea, me kēia kauoha ua paʻa i ka paukū 2D. No laila, hiki iāʻoe ke hana i ka mea like o kekahi mea 3D ma kekahiʻaoʻao, akā, e hana muaʻoe i kahi SCP nona ka paepae XY ma kaʻaoʻao. A iʻole, hiki iāʻoe ke hoʻohana i ke kauoha Simetria3D, a mākou eʻike ai ma kēia mokuna.
No kona hapa, o ka'ōpū mai equidistance kauoha mai no hoi ia i pili i kaʻikena XY pelane, me ka noonoo ole Z, no laila, e like mamua, e mālama ana i ka pono UCS, a me ka nānā 'oe i ka hoʻohana' ana. Ma muli o kēlā hui pū, hiki paha iāʻoe ke loaʻa i nā leka uila.
E noʻonoʻo i nā kauoha Trim and Stretch. Ma kāna hana maʻamau, hoʻopili wale ke kauoha Trim i nā mea e kū ana i kahi mokulele 2D. ʻAʻole hiki ke ʻoki i kahi laina me ka hoʻohana ʻana i kahi laina ʻē aʻe e like me ke ʻoki ʻoki. Hoʻonui ke kauoha Extend i ka laulā o kahi laina a i ʻole arc i nā palena i hoʻonohonoho ʻia e kekahi mea. Ma lalo o kēia mau kūlana hana, ʻelua laina ʻaʻole i hui maoli i kahi kiko 3D ʻaʻole hiki ke hui. Eia naʻe, loaʻa nā kauoha ʻelua i ke koho "Projection" e hiki ai, pololei, e hoʻopololei i nā laina a hiki i ka loaʻa ʻana o nā kuʻina kuhi e ʻoki a hoʻolōʻihi i nā mea. Loaʻa i kēlā mau kuʻina kuhi hewa ʻelua mau kumu: ka ʻike a i ʻole ka SCP o kēia manawa. E noʻonoʻo i ka wireframe like o nā hiʻohiʻona mua, kahi a mākou i hoʻohui ai i kahi laina ʻaʻole i hoʻopā maoli iā ia, akā ma ka ʻike mua e hana i nā intersections a ma kona ʻike kiʻekiʻe e lilo ia i palena e hoʻolōʻihi i nā laina ʻē aʻe. hiki iā mākou ke ho'āʻo i ke koho "Projection" o nā kauoha ʻelua.

I kekahi hihia, no ka mea he kuhi kūpono ia i ka nānā a iʻole SCP paha, hiki ke hoʻohana pololei i kēia mau kauoha i pololei, no laila, i ka hoʻohanaʻana iā lākou, ponoʻoe e noʻonoʻo i kēia nāwaliwali.
ʻO ka hope, hana ka Chamfer lāuaʻo Splice e like me ko mākouʻike iā lākou, no laila, e pili wale ana i nā mea i hana maoli i nā poʻomanaʻo. Inā makemake mākou e hoʻopili i kahi pahu kuhi, pono mākou e pilikia nui, no ka mea, ua maʻalahi ka hoʻohanaʻana i nā kauoha kiko'ī no ka hoʻoponoponoʻana i nā mea kaulike.