computer graphics c version phần 7 pdf

... orthographic projection is callcd a \hri :Gi13. Engineering and architectr~ral drawings commonly employ these orthographic projritions, because lengths and angles are accurately de- yictc,d and can ... 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*...

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 ... of Fractals Fractal Dimension Geometric Construction of Deterministic Self-Similar Fractals Geometric Construction of Statistically Self-Similar Fractals Affine Fractal-Construction Method...

Ngày tải lên: 12/08/2014, 11:20

... geometric components of pictures. Additional output primitives that can be used to construct a picture include circles and other conic sections, quadric surfaces, spline curves and surfaces, polygon ... 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 tra...

Ngày tải lên: 12/08/2014, 11:20

... the cirmlar arc, as 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, ... 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 cha...

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

... these coherence methods are used, we need to be careful to keep track of which surface section is visible on each scan line. This works only if surfaces do not cut through or otherwise cyclically ... In these packages, plane parameters A, B, C: and D can be calculated from polygon vertex coordinates specified in a clockwise direction (instead of the counterclockwise direction used...

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

... 575 Color model, 565.568 additive, 569, 572 CMY, 571 -75 m, 579 -80 HSB (srr HSV model) HSV, 575 -77 HSV-RGB conversion, 578 -79 RGB, 572 -73 RGBCMY mnvenion, 575 XYZ, 569 na 574 Color-tableanimation, ... Graphics Interface (CGI), 79 Computer Graphio Metafile (CGM), 79 Concatenahon (matrix), 191,612-13 Concave polygon splitting, 235- 37 Cone filter, 174 , 175...

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 ... 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 deflecti...

Ngày tải lên: 04/06/2014, 12:01

... hex; static const fmtflags internal; static const fmtflags left; static const fmtflags oct; static const fmtflags right; static const fmtflags scientific; static const fmtflags showbase; static const ... 1995 27. 4.2 Template struct ios_traits // 27. 4.2.4 conversions: static char_type to_char_type(int_type); static int_type to_int_type (char_type); static char_type* copy(char_type* dst , con...

Ngày tải lên: 09/08/2014, 12:22