Text generation and character generation techniques, Computer Graphics

Assignment Help:

Write short notes on Text generation.   OR Character Generation Techniques 

Character Generation Techniques   Two different representations are used for storing computer fonts. Bitmap font : It uses rectangular grid patterns. Outline font: It uses straight lines and curve sections to describe character shapes.  When the pattern of Fig(a) is copied to an area of the frame buffer, the 1 bits designate which pixel positions are t be displayed on the monitor. To display the character shape in Fig. (b) the interior of the character outline must be filled using the scan line fill procedure. Bitmap fonts free the simplest to define and display. The character grid only needs to be mapped to a frame buffer position. However bitmap fonts require more space because each variation must be stored in a font cache. Outline fonts require less storage since each variation does not require a distinct font cache. Different shapes and sizes can be generated using outline font and are easier to generate. But it takes more time to process the outline fonts because they must be scan converted into the frame buffer.

(1) Text (we point, string) Parameter string is assigned a character sequence which is then displayed at coordinate position we point.

(2) Polymarker (n, we points)  A marker symbol is placed at one of more selected positions. A predefined character is then centered at each of the n coordinate positions in the list we points.                                                                   

 


Related Discussions:- Text generation and character generation techniques

Concept of area subdivision method, Q.   Explain the concept of area subdiv...

Q.   Explain the concept of area subdivision method. Write the conditions, when no further subdivision is needed and how we can test these condition. Ans. Area Subdivision Th

What are the features of inkjet printers, What are the features of Inkjet p...

What are the features of Inkjet printers?  They can print 2 to 4 pages/minutes. Resolution is about 360d.p.i. Thus better print quality is achieved. The operating

Gui and graphics, Newspapers exchange news by using news agencies (such as ...

Newspapers exchange news by using news agencies (such as Reuters and ITARTASS). A newspaper registers at a news agency and sends all its news to the agency. The news agency collect

Problem with interpolated shading - polygon rendering, Problem with Interpo...

Problem with Interpolated Shading There are several more shading models that intermediate in complication among Gouraud and Phong shading, linking the liner interpolation of t

Define clipping, Define clipping and covering (exterior clipping)? Clip...

Define clipping and covering (exterior clipping)? Clipping is the process of cutting a graphics display to neatly fit a predefined graphics region or the view port.  This is

What is the minimum number of control points, Question: A curve shape ha...

Question: A curve shape has three quadratic Bézier curve segments. The curves have been joined sequentially so that continuity of the first derivative of the resulting curve sha

File format-introduction to computer graphics, File format We want an i...

File format We want an image of a Fly. The wings are incompletely transparent and to present that in our presentation what be problematic if suitable file format is not there.

2d clipping, What is 2d clipping in computer graphics

What is 2d clipping in computer graphics

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd