Umgomo osebenzayo wevalvu yebhola ukufeza injongo yokuvula noma yokuvala ivalvu ngokujikeleza izingxenye zokuvula nokuvala (izimbulunga) ezizungeze i-axis yesiqu sevalvu. Ngokukhethekile, lapho isibambo noma idrayivu ijikeleziswa, isiqu sevalvu sizojikeleza ibhola ngaso. Uma isiteshi sangaphakathi sebhola sihlobene nesiteshi sokungena nesokuphuma sevalvu, ivalvu isesimweni sokuvuleka ngokuphelele, futhi i-medium ingadlula kahle.
Uma ibhola lijikeleziswa ngama-degree angu-90, ukuze isiteshi salo sangaphakathi kanye nesiteshi sokungena kanye nesiteshi sokuphuma siqonde phezulu noma siqine, ivalvu isesimweni esivaliwe ngokuphelele, i-medium ayikwazi ukudlula. Ngale ndlela, ngokujikeleza i-sphere, ivalvu ingavulwa futhi ivalwe ukulawula ukugeleza kwe-medium.
Isikhathi sokuthunyelwe: Julayi-30-2024