Ngokubanzi, ubume bejethi etyibilikayo okanye umlomo wombhobho weflethi onobume bokuphambuka unemingxunya ejikelezileyo. Umngxunya wejethi wombhobho weflethi oqhelekileyo awuyiyo isangqa esiqhelekileyo, uya kuba yi-ellipsoid enamacala amathathu. Ke ngoko, ububanzi bomngxunya awunakusetyenziselwa ukubala ukuhamba ngeli xesha, kodwa inani elinemilinganiselo emithathu kufuneka liguqulwe libe sisangqa esifanayo, emva koko ukuhamba kubalwe ngokusekwe kububanzi bomngxunya wesetyhula.

Njengoko umlomo uneeparamitha ezimbini: inaliti ye-angle kunye nokuhamba kwenqanaba, isantya sokuhamba kwemilomo asinakubalwa ngokulingana ngobubanzi bomngxuma wombhobho. Ngokubanzi, kuya kubakho ulungelelwaniso lokuhamba ngaphakathi kwemilomo, ke ngoko ubukhulu bemilomo kuphela kuqikelelo lobungakanani bokuhamba kwenqanaba kwaye ayinakusetyenziswa njengeparameter echanekileyo. Sinetafile eneenkcukacha zokuhamba ngokuthe ngqo kokuhamba ngqo kunye ne-engile, unokusibuza nangaliphi na ixesha.