M\lC l\lc ChliOfi81.Md d~u 1.1 1.2 Yell du thtfc t6va ly thtfc hic$nd~ tai M1,1ctieu d~ tai " 1.3 So luQcv~ cac k6t qua nghien CUlltrong va ngoai nuoc CtlVONG2 T~o l~p va 11mtru du li~u anh vector 2.1 Thi6t k6 dli lic$u 2.1.1 Winged-edge topology: " 2.1.2 Cac dip topology co sa dli lic$u 2.1.3 Qui uoc chung cho cac bang dli lic$u 2.1.4 M6 ta cac d6i tuQngco sa 2.1.5 Chi m1,1ckh6ng gian (spatial index) 2.1.6 MQtvi d1,1v~ vic$et~o cay chi m1,1ckh6ng gian 2.2 T~o dli lic$uant vector 2.2.1 Vector boa ant bitmap 2.2.2 TIm ph~n giao eua hai da giac ba't ky 2.3 Tom t~t : l " :.8 ll 15 16 23 26 34 34 43 56 ChUOfi83 Phep bie'n d6i Radon & Hough xac dinh d6i tu'