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Pub. No.:    WO/2003/001458    International Application No.:    PCT/JP2002/006159
Publication Date: 03.01.2003 International Filing Date: 20.06.2002
G06T 3/00 (2006.01)
Applicants: HI CORPORATION [JP/JP]; 6-5, Higashiyama 1-chome Meguro-ku, Tokyo 153-0043 (JP) (For All Designated States Except US).
TANIOKA, Yasuhisa [JP/JP]; (JP) (For US Only).
TSUTSUMI, Junya [JP/JP]; (JP) (For US Only).
KAWABATA, Kazuo [JP/JP]; (JP) (For US Only).
ODA, Kazutoshi [JP/JP]; (JP) (For US Only)
Inventors: TANIOKA, Yasuhisa; (JP).
TSUTSUMI, Junya; (JP).
KAWABATA, Kazuo; (JP).
ODA, Kazutoshi; (JP)
Agent: UDAKA, Katsuki; No.2 Azuma Bldg. 14, Kandasakumacho 1-chome Chiyoda-ku, Tokyo 101-0025 (JP)
Priority Data:
2001-187619 21.06.2001 JP
Abstract: front page image
(EN)When the variation (1) of the x coordinate with respect to the y coordinate of a line passing through point P1(x1, y1) and point P2(x2, y2) on a two−dimensional plane is calculated for rasterization of drawing of a three−dimensional image, constant µ expressed by (2) is related to the variation of the y coordinate and stored in a memory. To calculate &Dgr;x, µ corresponding to the variation of the y coordinate is read from the memory to determine &Dgr;x’ = µ*(x2 − x1); by multiplication, and the result is used as &Dgr;x.
(FR)Lorsque la variation (1) de la coordonnée x par rapport à la coordonnée y d'une ligne passant par un point P1 (x1, y1) et un point P2 (x2, y2) sur un plan bidimensionnel est calculé par tramage du dessin d'une image tridimensionnelle, $g(m) constant exprimé par (2) est lié à la variation de la coordonnée y et stocké dans une mémoire. Pour calculer $g(D)x, $g(m) correspondant à la variation de la coordonnée y est lu dans la mémoire pour déterminer $g(D)'x = $g(m) (x2 x1) par multiplication et le résultat est utilisé comme $g(D)x.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, OM, PH, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)