Referenzi uye Zvipingamupinyi ne AutoCAD - Chikamu 3

CHITSAUKO 15: NZVIMBO YEMUNHU WAKANYANYA

Muchikamu che 3 chemufambiro uyu, tinodzidza urongwa hwehutungamiri, chikonzero chekutanga chekutora mifananidzo chaiyo, kwete muAustocad chete, asi mune zvigadzirwa zvebudiriro muhuwandu. Muchitsauko ichocho takadzidzawo kuti tingatanga sei maCallesian uye polar, mhedziso uye nhengo dzehukama. Saka zviri pachena kuti nemhaka Cartesian ndege kana kuti vanoronga hurongwa, tinotsnangura nzvimbo ipi pfungwa pamusoro chidzitiro pamusoro pfungwa anonzi mavambo chete nemararamiro ari X akabatana uye Y akabatana ari maviri-dimensional mufanidzo uye achiwedzera Z inosangana mumaturo matatu.
Nokuwedzera, mukudhindwa nezvinhu zvinenge zvasikwa, nzvimbo yepfungwa inobva kune iyo yakafanana. Ndiko, kana isu kusarudza kuti chero nguva iri chidzitiro ane Coordonatele X = 0, Y = Z = 0 0 uye ipapo Coordonatele vose dzimwe pfungwa dziri mufanidzo kwedu akazoziva zvokuisa ruremekedzo kuti kunobva. Muchidimbu, kuti User Coordinate System (UCS), kuti kukwanisa kupa Coordonatele upi pfungwa bhuku, asi kutsanangura zvinorehwa nerimwe Cartesian namasanhu iri munhu zvichienderana. Ndicho chikonzero kune zvakawanda zvingasarudzwa zvekusika kweSCP. Asi ngationei yakarongeka.

15.1 The SCP icon

The UCS Icon ari default inowanikwa Autocad, iri munzvimbo dzakaderera rworuboshwe kukona chidzitiro chaiyo kutoda mavambo apo X = Y = 0 0 uye. Kubva ipapo, kuti X akabatana ane tsika zvakwakanakira kurudyi uye Y akabatana kumusoro, kureva chidzitiro rinoenderana quadrant 1 sezvinotaurwa munyaya chikamu 3.2. Uyewo, iyo Z akabatana ane zvekufungidzira mutsetse perpendicular kuti chidzitiro, zvakanaka tsika dziri kurutivi rokushandisa maziso kubva mundege inoumbwa pechiso chete chidzitiro. Zvisinei, UCS kuvake kunogonawo configured kuti nguva dzose kuramba yepazasi rworuboshwe pakona chidzitiro, kunyange kana Coordonatele vavo hachibatsiri panguo zvinokosheswa mavambo, saka kuti icon nguva dzose kuzadzikisa ayo chemuTestamente mirayiridzo namasanhu avo mumifananidzo. Izvi nezvimwe zvinogona kugadziridzwa nemuongorori wemamiriro ezvinhu anowanikwa pakusarudza icon pachayo.

Apo patinoshandisa 2D version yemufananidzo, maZ axis anomira kuoneka, izvi zvinonyatsooneka patinoshandisa maonero ekuyerera emudhidhi.

Muchidimbu chemaviri-maviri, sezvinogona kuonekwa, kushandiswa kweimwe kana imwe chiratidzo kunonyatsonyatsoitika. Asi izvozvi hazvikwanisi kutaurwa nokuda kweC2D icon mumutambo wematatu. Zvisinei, kuchinja zvidavado iri nhaurirano iri nyore kuti inodzidzisa zvichaita nyore kushandisa munhu kuti zvifambe neimwe nyaya. Vamwe zvaidiwa nhaurirano dziri anenge anecdotal, sezvo paine achakwanisa corroborate: chii ruvara uchida kuti icon iri womuenzaniso nzvimbo uye pepa (nyaya dziri kuongororwa muna 29 chitsauko) nzvimbo, sei nemvumi uchida kuti mitsetse yeiyo icon mu 3D uye kuti ndeiyasi iyo ichava nayo pahwindo.
All izvi nzira kuvake hakuiti pacharo kusika chinhu anoishandisa batanidza maitiro nekuti havadi kuchinja zvachose pfungwa mavambo, asi zvakanga zvakakosha kuongorora nokuti icon kuti kucharatidza nyore kwatiri kuti tiri kushandisa Coordinate System. Kuumba SCP tichashandisa murairo kana zvishandiso zvechikamu chinotevera.