GRAPHICS

          IMPORTANT      1. Which keys allows user to enter frequently used operations in a single key stroke? a. Function keys b. Cursor control keys c. Trackball d. Control keys => Function key 2. The device which is used to position the screen cursor is ?         A.     Mouse     B.     Joystick     C.     Data glove     D.     None of above => a 3. Which is the device that is constructed with the series of sensors that detects hand and finger motion? a) Digitizers b) Data glove c) Joystick d) Track ball => b 4. Color information can be stored ina) Main memoryb) Secondary memoryc) Graphics cardd) Frame buffer => d 5. The range that specifies the gray or grayscale levels is a) The value range from -1 to 1 b) The value range from 0 to -1 c) The value range from 0 to 1 d) Any one of the above =>...

 PRESENTATION  https://www.slideshare.net/avelraj/lecture-filling-algorithms https://www.slideshare.net/kumar_vic/fill-areaalgorithms   FILL ALGORITHM:   Polygon Fill Algorithm  • Different types of Polygons  – Simple Convex  – Simple Concave  – Non-simple : self-intersecting  – With holes Polygon surfaces  A polygon is an important graphics primitive. A polygon is a closed area of image bounded by straight or curved lines and filled with one solid color.  Since images are two dimensional, a polygon is a closed planar figure.   A polygon can be defined as an image which consists of a finite ordered set of straight boundaries called edges .  The polygon can also be defined by an ordered sequence of vertices , i.e, the corners of the polygon.  The edges of the polygon are then obtained by traversing the vertices in the given order;  Two consecutive vertices define one edg...

DISCUSSION ON : Video, Display Devices, CRT, LCD display devices, Raster-Scan and Random-Scan Systems, Graphics , Monitors and Workstations, Input devices, keyboard, mouse, trackball, data glove, scanners and Hard Copy Devices, Graphics Software.        COMPUTER GRAPHICS   * Computer graphics refers to the creation, storage and manipulation of pictures and drawings using a digital computer.    * A major application of computer graphics is designing, particularly engineering and architectural systems.     Graphic hardware can be divided into three major categories of devices: (1) I nput devices with which the user interacts to generate necessary instruction or data for creating graphics (2) Display systems where the graphics are rendered on the monitor screen (3) Hardcopy devices or printers through which the tangible graphics output is produced.   Based on the logical interaction types the input devices can be broadly classified as ...