computer graphics c version phần 1 ppsx

... in computer graphics and Image processing overlap, the amas am concerned with fundamentally different operations. In computer graphics, a computer is used to create a pichue. Image processing, ... 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 defle...

Ngày tải lên: 12/08/2014, 11:20

... 55-54 ,13 2 13 3 text precision. 16 6-1U tophe, 16 4 typefa, 13 2-33, I63 up vector. I65 width. 16 4-65 Charaaeristic polygon, 31 h ourt bar. 11 -12 , 13 7-38 pie. 11 -12 ,13 8-40 be, 11 . 13 Imp, ... plane. 615 Composite I~oN~o~, 44-45 Composition (mstru), 19 1 Computed tomography (CT), 32 Computer- aided design (CAD), 4 -11 Computer- aided surgery.33 Computer...

Ngày tải lên: 12/08/2014, 11:20

... 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. ... by scan con- verting the basic geometric-structure specifications into pixel patterns. Typically, graphics programming packages provide functions to describe a scene in terms of...

Ngày tải lên: 12/08/2014, 11:20

... discussed in Section 3 -10 , we can set the radii for the concentric boundary arcs at r = 14 and r = 17 . Although this method is accurate for generating thick circles, in general, ... the fill color. This occurs because the algo- rithm checks next pixels both for boundary color and for fill color. Encountering a pixel with the fill color can cause a recursive branch to te...

Ngày tải lên: 12/08/2014, 11:20

... lines arc then processed through the intersection calculations, which must solve simultaneous circle-line equations Splitting Concave Polygons We can identify a concave polygon by calculating ... Area Clipping (polygons) Curve Clipping Text Clipp~ng Line and polygon clipping routines are standard components of graphics pack- ages, but many packages accommodate curved objects, pa...

Ngày tải lên: 12/08/2014, 11:20

... paramelric curve .ind wriace represent,ltlons include Bezim (19 7 21, Hurt md Adrl50-i (19 8 .1) . Barsky (19 113 , 19 811 , Korhanek ,ind Bartel5 11 984) F,lrouki ~nd Hinds (IORi!. Huitric 'ind Nahas 11 98 51. ... (1& apos;38 81 Koh and Hearn (19 92). and Barnslev (19 9 31. Shape grammars are d~cc u5wtl In Llassner I 19 9 21, and particle systems are discussed in Rewes (19 811...

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 ca...

Ngày tải lên: 12/08/2014, 11:20

... Object-Intersection Calculations Raysurface intersection calculations can account for as much as 95 percent of the processing time in a ray tracer. For a scene with many objects, most of the pro- cessing ... to reduce intersection calculations, is to use space-subdivision meth- ods. We can enclose a scene within a cube, then we successively subdivide the cube until each subregion (ce...

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 ... F'I~~II~ 1 - I Examples of computer graphics applications. (Courtesy of DICOMED Corpora! ion.) Chapter 1 A Survey of Computer Graphics Figure 1- 10 Vie...

Ngày tải lên: 04/06/2014, 12:01

... Finalizers in Reference Classes 549 Generic Classes 5 51 Generic Interface Classes 554 Generic Collection Classes 555 Summary 5 61 Exercises 562 02_5 719 74 ftoc.qxp 1/ 20/06 11 :22 PM Page xxii The ... Form 10 80 Developing the Dialog Class 10 81 Handling the Click Event for the ChooseMenu 10 83 Summary 10 86 Exercises 10 87 02_5 719 74 ftoc.qxp 1/ 20/06 11 :22 PM Page xxxiii xxv...

Ngày tải lên: 13/08/2014, 18:20