Sokhtani proeksiyahoi ustuvona va makhrut

• Doi- rahoe, ki dar asoshoi ustuvona va makhrut joygirand, ba hamvorii ufuqii proeksiyaho muvoziand va az in ru, dar in hamvory betagyir chun davra tasvir meshavand. Pro- eksiyahoi frontaly va pahluii ustuvona rostkunjaho va makhrut sekunjahoi barobarpahluand (rasmhoi 82 a va 83 a). Dar naqsha sokhtani in proeksiyahoro az guzaronidani mehvari simmetriya sar mekunand (rasmhoi 82 b va 83 b).

Tarzi sokhtani proeksiyahoi izometrii ustuvona va makhrut qarib yakkhelaand. Baroi in mehvarhoi kh va u-ro guzaronida, dar onho rombe mesozand, ki tarafhoyash ba qutri asosii ustuvona (yo makhrut) barobarand. Andaruni romb bayza (nig. ba rasmi 66) mesozand.yak proeksiya ham tasvir kardan mumkin ast (rasmi 84). An- dozahoi ustuvona va makhrut bo balandy va qutri asoshoi onho muayyan meshavand.