computer graphics c version phần 2 pot

... device inter- face methods is given in the Computer Graphics Interface (CGI) system. And the Computer Graphics Metafile (CGM) system specifies standards for archiv- ing and transporting pictures. ... steps. The constants 2Ay and 2Ay - 2Ax are cal- culated once for each line to be scan convcrtcd, so the arithmetic involves only integer addition and subtraction of these...

Ngày tải lên: 12/08/2014, 11:20

... surface. Figure 14-60 shows a ray-traced scene containing multiple objects and texture patterns. Reducing Object-Intersection Calculations Raysurface intersection calculations can account ... purity with the chromaticity diagram. C, . Color C, can then be represented as a combination of white light C and the spectral color C, . Thus, the dominant wavelength of C, is C, . This...

Ngày tải lên: 12/08/2014, 11:20

... focusing, deflection of the electron beam can be controlled either with electric fields or with magnetic fields. Cathode-ray tubes are now commonl!. constructed with magnetic deflection coils ... focusing effects can be accomplished with a magnetic field set up by a coil mounted around the outside of the CRT envelope. Magnetic lens fc- cusing produces the smallest spot size on the screen...

Ngày tải lên: 12/08/2014, 11:20

... tint n, wcPt2 pts) Draw a connected sequence of n-1 line segments, specified in pts . pCircle (wcPt2 center, float r) Draw a circle of radius r at center. ppillarea (int n, wcPt2 pts) ... where text color piramcter tc specifies an allowable color code. We can adj~~st text size by scaling theoverall dimensions (height and width) of characters or by scaling only the character...

Ngày tải lên: 12/08/2014, 11:20

... = p2.x + (wMax.y - p2.y) / m; else iPt.x = p2.x; break; 1 return (iPt) ; 1 void clippoint (wcPt2 p, Edge b, dcPt dir,, dcPt wNax, wcPt2 Wt, int cnt, wcPt2 first[], wcPt2 ' ... cross (wcPt2 pl, wcPt2 p2, 8dge b, dcPt Min, dcPt wMax) ( if (inside (pl, b, -in, == inside (p2, b, dn, Wax) return (FALSE) ; else return (TRUE); 1 wcPt2 intersect (wcPt2 pl, wcPt2...

Ngày tải lên: 12/08/2014, 11:20

... 1c. O; C& lt;4; c+ +I trnp[r] [cl = a[rl IOI'blO] [cl + alrl Ill'b !I [cl + a[r] [2Ji1 [2! Ic] + alr] [3l*b[3] [cl: for (r=O; r<4: r*+l for (c= S: cc4; c* +) blri lc: ... (p2.x - g1.x) . (p2.x - 1,l.x) + (p2.y - p1.y) ' (p2.y - p1.y) + (p2.z - pl .21 ' ( ~2. 2 - p1.z)); floac cosA .2 = cosf (radianAngle 1 2. 0); floa...

Ngày tải lên: 12/08/2014, 11:20

... track of which surface section is visible on each scan line. This works only if surfaces do not cut through or otherwise cyclically overlap each other (Fig. 13-11). If any kind of cyclic ... in Chapter 14. 13-1 1 CURVED SURFACES Effective methods for determining visibilit$ for objects with curved surfaces in- clude ray-casting and octree methods. With ray casting, we calculate...

Ngày tải lên: 12/08/2014, 11:20

... Computer Graphics, 20 (4), pp. 85-94. YACEL, R., D. COHEN, AND A. KAUFMAN (19 92) . "Discrete Ray Tracing", IEEE Computer Graphics and Applications, 12( 5), pp. 19 -28 . YAMAGUCHI, ... 501 -2 hmSpaI'tIIV, 510 Cohen-Suthnland line-clipping algorithm, 22 6-30 .23 2 Cohemnce. 119 -24 . 471 Color chmmathty. 567 chmmaticlty diagram, 569-71 chmmatic~ty val...

Ngày tải lên: 12/08/2014, 11:20

... and science had to rely on expensive and cumbersome equipment, advances in computer technology have made interactive computer graphics a practical tool. Today, we find computer graphics used ... 20 5 Exercises Ven~cal Focusing Deflection Connector Elr-,:wn ticr~zontal Beam Pins Gun De!lection Plates Figure 2- 4 Electmstatic deflection of the electron beam i...

Ngày tải lên: 04/06/2014, 12:01

... other recipients. Also called: carbon copy. See also e-mail 1 (def- inition 1), header. Compare bcc. CCC n. Acronym for Computer Controlled Character. CCC is generally used in role-playing computer ... beginning arithmetic to advanced mathematics, science, history, computer studies, and spe- cialized topics. Also called: CAL, CAT, computer- aided learning, computer- aided teachin...

Ngày tải lên: 09/08/2014, 09:20