| OCR Text |
Show 92 ponts in similar a the angle projection ray through and perpendicular X Xn X Zn (which the the + Z Zn Z Xn ( To (X = Xn to first onto the plane. perpendicular plane (X Y Z) as this in the through into P=(O Y) this plane as its is then components This ray. can 90° rotated ray Z I I Xn Zn I = sin a 1 X Z 1 I Xn Zn 1 X Z 1 I Xn Xn Zn X Zn)sin8 than y=o - I other vector scan we perpendicularaly into vector the to (Z + components which ray lies in 30. figure is vector Y (X be X this parallel normal can angle I normal resolve and to passes -Z Then be cos a planes scan the project to = Zn)cos8 Z + to ) the itesslf. ray Zn and is function generalize this need At of by assumed projection z)· (Xn Zn) X (- Z X). (xn = sin(8-a) = the 1 the have we case vector normal to product with definition the G(u,v) dot the the Thus (Xn,Zn) cosine and parallel perspective by taking the dot product with the be done and th eye resolving by computed the sine The 0,0,0). the between measuring at for manner and Z) normal - p P [xn Zn). axis The and The scan plane the vector has projection of (N. p) I = X the vector. N N (Xn Yn P 12 Y(YYn+ZZn) y2+Z2 Z (YYn+ZZn) y2+Z2 1 N onto |
