Labels:bulletin board | reckoner | sky OCR: 2d mouse movement does not map directly to movement in three dimensional sp One scheme for mapping 2d mouse movement to 3d i is the triad mouse Triad mouse operation divides 2d mouse movement into six general "triad vector directions These 2d directions are determined from the current 2d projections of the three 3d axes 2d movement in one of the triad vector directions maps relative 3d movement ur the direction of the corresponding 3d ax Total 3d movement IS the accumulation of movements during a given period During triad mouse operation a 3d "box" cursor replaces the 2d mouse cursor Thi 3d box cursor aids with depth perception and indicates the present triad vector directions Depending on the orientation of the 3d coordinate axes, the triad mouse functions relatively well. Triad mouse ope ...
