Ke kūkulu i nā meaʻimi me AutoCAD - Paukū 2
5.4 Circles
ʻEhia mau ala e hiki ai ke hoʻopiliʻia? Ma ke kula kiʻekiʻe, hoʻohana wau i kahi pāʻalā, kahi hoʻopili'āpana a, aiʻole he mahele hope, he'āpana, he aniani paha, aiʻole kekahi meaʻokoʻa e hiki iaʻu ke kau i ka pepa e alakaʻi i kaʻu penikala. Aia ma Autocad aia nāʻanoʻokoʻaʻeono. E koho i kekahi aiʻole ma muli o kaʻike i loaʻa iā mākou ma ke kiʻi e hana pēlā. ʻO ka loli paʻamau ka wahi o ke kikowaena a me kahi mamao radius, e like me kā mākou i hōʻike mua ai.
Hiki keʻikeʻia nāʻano 5'ē aʻe i nā koho hāʻuleʻana o ke pihiʻaoʻao, aiʻole ma waena o nā koho kauoha ma ka puka laina laina.
ʻO ke koho "Center, Diameter" e nīnau iā mākou i kahi kiko no ke kikowaena a laila kahi mamao e lilo i ke anawaena o ka pōʻai; maopopo he ʻano ʻokoʻa wale nō kēia o ke ʻano mua, ʻoiai ʻo ka radius ka hapalua o ke anawaena.
ʻO ka koho "2 points" e kūkulu i ka pōʻai me ka noʻonoʻo ʻana i ka mamao ma waena o nā kiko ʻelua e like me ka lōʻihi o ke anawaena. Heluhelu ʻo Autocad i ke kikowaena o ka pōʻai ma ka puʻunaue ʻana i ka mamao ma waena o nā kiko ʻelua i ʻelua, akā naʻe, aia kona pono ma ka ʻoiaʻiʻo e hiki ke hoʻoholo ʻia nā helu ʻelua ma ke ʻano o nā mea ʻē aʻe i ke kiʻi, no laila hiki iā mākou ke haʻalele i nā ana kikoʻī. i ke anawaena pili.
Ma kēia hihia, hoʻopukaʻo Autocad i kahi pōʻai e pili ana i kahi pae i nā heluʻekolu i hōʻikeʻia ma ka pakuhi. ʻO ke ala e helu ai i ka pōʻai e pili ana i kēia koi e hiki ke nānā houʻia ma ka weheweheʻana i ho'ākākaʻia e mākou ma ke alakaʻi ma Autocad 2008 a me 2009, hiki ke nānā houʻia maʻaneʻi.
ʻO ke koho "Tangent, tangent, radius", e like me ka hōʻike ʻana o kona inoa, pono mākou e kuhikuhi i ʻelua mau mea, e hoʻopā ʻia e ka pōʻai hou, a me ka waiwai o ka radius; ʻAʻole pili ke ʻano o nā mea ʻē aʻe, hiki iā lākou ke laina, arcs, nā pōʻai ʻē aʻe, a pēlā aku. Pono e hoʻomaopopo ʻia, inā ʻaʻole ʻae ka radius i hōʻike ʻia i ke kahakaha ʻana i kahi pōʻai me nā kiko kikoʻī ʻelua i nā mea i hōʻike ʻia, a laila e loaʻa iā mākou ka memo "ʻAʻole ola ka pōʻai", ma ka puka makani laina kauoha. Hōʻike maʻamau kēia ʻaʻole lawa ka radius i kuhikuhi ʻia e huki i ka pōʻai.
ʻO ka hopena, no keʻano hope loa, pono mākou e kuhikuhi iʻekolu mau mea e hoʻopili kokeʻia e ka pōʻai e kahakahaʻia. ʻIke i keʻano, ua like kēia me ke kāʻeiʻana i ka pōʻai ma luna o nā helu 3. Hoʻoholo houʻia kona pono, i ka hikiʻana iā mākou ke hoʻohana i nā mea'ē aʻe i ke kiʻi.
E nānā i ka hanaʻana i nā hui me nā mea i hōʻikeʻia i kēia manawa.
5.5'Apau
ʻO nā'āpana he mau'āpana o ka'āpana, a inā he mau pūnaewele ellipiptical, me ke kauohaʻo Autocad Arc mākou e pili wale ana i kēiaʻano arc,ʻaʻole nā mea'ē aʻe. No ke kūkuluʻana iā lākou, e koiʻia nā helu e like me ka hoʻomaka, ka hopena a waena paha. Hiki hiki ke hana iā lākou i ka hoʻohanaʻana i nāʻikepili e like me ke aniani o ke aniani, ke aho, ke lōʻihi, ke kuhikuhiʻana o ke kuʻi, a pēlā aku nō. Hiki keʻikeʻia nā hui pūnaewele o kēia mauʻikepili no ke hukiʻana i nā kikowaena ma ke kī o ke peʻapona,ʻo ka koho,ʻoiaʻiʻo, e hilinaʻiʻia ma nāʻikepili i hāʻawiʻia e nā mea i kēia manawa ma ke kiʻi.
Pono e hoʻomaopopo ʻia ʻelua mau mea: ke kaha mākou i kahi arc me ka hoʻohana ʻana i ka waiwai angle, ʻoi aku ka maikaʻi o ka counter-clockwise, e like me kā mākou i ʻōlelo ai. Ma ka ʻaoʻao ʻē aʻe, i ka wā e hoʻohana ai mākou i ke koho "Length", pono mākou e kuhikuhi i ka laina laina e uhi ʻia ka ʻāpana arc.
Inā mākou e hoʻokō i ka kauoha Arc ma ke kākauʻana i ka puka kauoha, e nīnau maiʻo Autocad iā mākou no ka hoʻomakaʻana a iʻole ke kikowaena, e like me ka mea iʻikeʻia ma ka laina kauoha. A laila, e hilinaʻi ana i nā koho o nā helu a mākou e koho ai, e hoʻopau loa mākou i ka hanaʻana i ke kikowaena me kahi hui pūnaewele e like me nā mea i heluʻia ma ka papa inoa. ʻO ka hoʻokaʻawaleʻana ma waena o ka hoʻohanaʻana i kekahi o nā hui pūʻulu o ka papa inoa a iʻole ka papa kauohaʻo Arc ma ka papa koho ua koho mākou i nāʻikepili a mākou e hāʻawi ai a me keʻano o ke kaʻina, me ke kauoha e pono mākou e hele e koho i nā koho ma ka laina kauoha.
5.6'Ellipses
ʻO ka'ōlelo maʻamau,ʻo kahi ellipse kekahi mea i loaʻa nā wahi 2 i kapaʻiaʻo foci. ʻO ka huina o ka mamao mai kekahi wahi o ka ellipse i kekahi o ka foo, me ka mamao mai kēlā wahi ai kekahi mea'ē aʻe, e like mau ka nui o kekahi wahi'ē aʻe ma ka ellipse. ʻO kēia kona hōʻailona kūlana. Eia naʻe, no ka hanaʻana i kahi ellipse me ke Kaipopo,ʻaʻole pono e hoʻoholo i ka foci. Hiki i ke geometry o ka ellipse ke kau i kahi axis liʻiliʻi a me kahi axis nui. Ke kuʻina o ka nui iho (axis), a me nā nīnūnē (axis) mea ma ka liʻiliʻi loa no Autocad, i ka piko o ka ellipse, no laila, he papa hana e huki ellipses me ka miomio e hoike ana i ke-oaio? A, laila, i ka mamao a hiki i ka pauʻana o kekahi o na pua a laila ka mamao mai ke kikowaena a hiki i ka hopena o kahi axis. ʻO keʻano o kēiaʻano,ʻo ia ke huki i ke kumu hoʻomaka a me ka hopena o kahi axis a laila ka mamao i kekahi.
Ia manawa, elliptical arcs i ellipse Hoʻohana i hiki ke kūkulu i ka like me ka ellipse, ma ka hopena wale mākou hōʻike i ka loiloi mua a me ka hope waiwai o ka huina o ka olelo mai arcs. E hoomanao i ka paʻamau palapala koho Autocad, 0 waiwai no ka huina o ka ellipse coincides me ka nui iho (axis) a me ka piʻi pū i loko o counterclockwise, e like me ka hiki ke ike koke: