Zolemba ndi Zolepheretsa ndi AutoCAD - Gawo 3

MUTU XUMUMX: ZINTHU ZOPHUNZITSIDWA ZA PARAMETRIC

Tikagwiritsa ntchito cholozera chakumapeto kwa zinthu, mwachitsanzo, zomwe tikuchita ndikukakamiza chinthu chatsopanocho kugawana mfundo ya geometry yake ndi chinthu china chojambula kale. Ngati tigwiritsa ntchito mawu akuti "Parallel" kapena "Perpendicular", zomwe zomwezo zimachitika, tikukakamiza dongosolo la chinthucho chatsopano pokhudza chinthu china, ndiye ngati sichikufanana kapena zofanana, malinga ndi zomwe zikuchitikazo komanso zina. apangidwe
"Parametric restriers" titha kuwonedwa ngati kuwonjezera kwa lingaliro lomwelo lomwe limasonkhezera kutanthauzira pazinthu. Kusiyanako ndikuti makonzedwe a geometric yokhazikitsidwa amakhalabe chofunikira kuti chinthu chatsopanochi chizikumana mokhazikika, kapena,, monga choletsa.
Mwa njira iyi, ngati takhazikitsa mzere monga momwe zingagwiritsire ntchito wina, ndiye kuti ziribe kanthu momwe timasinthira mzere winawo, chinthu choletsedwa chiyenera kukhala chopanda malire.
Mwachiwonekere, kugwiritsa ntchito chiletso kumakhala kosavuta tikasintha chinthu. Izi ndizo, popanda zoletsedwa tikhoza kusintha zojambula, koma monga izi zilipo, kusintha kosatheka kuli kochepa. Ngati ndife chotungira AutoCAD chinthu alipo amene amafuna palibe kusintha, ndiye izo zimapangitsa neza ntchito ngati parametric zojambula chiletso. Ngati, ngati tikupanga kujambula kwa nyumba kapena mawotchi omwe mawonekedwe ake omalizira timayang'ana, ndiye kuti zovuta za parametric zimathandiza kwambiri, popeza zimatilola kukonza mgwirizano pakati pa zinthu, kapena kukula kwake, kuti Chilengedwe chiyenera kutsatira.

Ikani njira ina: zolepheretsa pazomwe zimakhala zofunikira ndizofunikira kwambiri popanga ntchito, chifukwa zimatithandiza kukonza zinthu zomwe ziyanjano zawo kapena maubwenzi ojambulidwa ayenera kukhala nthawi zonse.

Pali mitundu iwiri ya zotsalira za parametric: Geometric ndi Cota. Zoyamba zimatanthauzira zoletsedwa za geometrical za zinthu (perpendicular, kufanana, zowonekera, etc.), pamene kukula kwake kumayambitsa zoletsedwa (kutalika, angles ndi radii ndi mtengo wapadera). Mwachitsanzo, mzere ayenera kukhala 100 mayunitsi kapena mizere iwiri ayenera kupanga ngodya ya 47 °. Poyankha, zopinga womangidwa tingasonyezere monga maikwezhoni, kotero kuti gawo lomaliza la chinthu zachokera makhalidwe a (variable kapena zonse) wa aone kuti pali la wapangidwa.

Popeza ife kuphunzira kusintha zipangizo za zinthu ku mutu 16, onani pano mmene kulenga, view ndi kusamalira zopinga parametric, koma ife tidzabwerera iwo mu mutu umenewo.

Zoletsa za Jiometric ya 12.1

Monga tanenera kumene, zovuta zowoneka bwino zimakhazikitsa dongosolo ndi zinthu zamakono za zinthu ndi ena. Tiyeni tiwone aliyense:

Kugwirizana kwa 12.1.1

Kulepheretsa uku kumachititsa chinthu chachiwiri chosankhidwa kuti chigwirizane ndi mfundo zina ndi chinthu china choyamba. Pamene tikusuntha chosankha, Autocad ikuwunikira mfundo zosiyana za geometry zomwe tingathe kuzigwirizana ndi mfundo ya chinthu china.

12.1.2 Collinear

Amasamukira ku mzere wachiwiri wosankhidwa kukhala collinear motsatira mzera woyamba.

12.1.3 Concentric

Magulu a mabwalo, arcs ndi ellipses kuti agawane pakati pa chinthu choyamba chosankhidwa.