+ Computer Graphics Interview Questions and Answers, Question1: What is scan conversion? Question2: Write the properties of video display devices?. COMPUTER GRAPHICS viva questions and answers pdf COMPUTER GRAPHICS lab viva questions with answers pdf cg viva interview. CG Viva+questions+&ANSWERS - Download as Word Doc .doc), PDF File .pdf) , Computer Graphics Viva Questions. Common refresh rate values are
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45 TOP Computer Graphics VIVA Questions and Answers Short Answer Type Questions. Share | Download the pdf version of these notes. Lab I - Core & Advanced underlying computer graphics, Computer Graphics Lab Viva Questions And Answers Pdf Vtu. You are here: Home. Viva Questions: CG & V Lab(10CSL67) Define Computer graphics? Computer graphics are graphics created by computers and, more generally, the A defined common extension to the X Window System allows an OpenGL client on one.
Answer : The reflection is actually the transformation that produces a mirror image of an object.
For this use some angles and lines of reflection. Answer : X shear, y shear.
Find the rotation matrix and the resultant point Question What Is Computer Graphics? Answer : The term computer graphics include almost every thing on computer that is not text or sound. It is an art of drawing pictures, lines. Or we can say that graphics is the representation and manipulation of image data by computer with the help from specialized software and hardware. Graphic designing is done using the various available softwares for computers which can produce the 3D images in the required shape and dimension.
Computer graphics help us in getting the real display experiences. Computer-generated models of physical, financial and economic systems are often used as educational aids.
Question-3 What are the raster and vector graphics?
Raster image are stored in image files with varying formats. VECTOR- Vector graphics is the use of geometrical primitives such as points, lines, curves, and shapes or polygon, which are all based on mathematical expressions, to represent image in computer graphics. Question-4 Write the difference between vector and raster graphics? Answer-Following are the differences between vector and raster graphics- 1. Raster or Bitmap images are resolution dependent because of this its not possible to increase or decrease their size without sacrificing on image quality.
While vector based image are not dependent on resolution. The size of vector image image can be increased or decreased without affecting image quality. Raster or bitmap images are always rectangular in shape, Vector image, however, can have any shape. Question-5 What is scaling in computer graphics? Answer- In computer graphic, image scaling is the process of resizing a digital image. Question-6 What are the hardware devices used for computer graphics? Question-7 What are the features of inkjet printers?
Answer- Features of inkjet printers are- 1. They can print 2 to 4 pages per minute. Therefor better print quality is achieved.
The operating cost is very low. The only part that requires replacement is ink cartridge. Four colors cyan, yellow, magenta, black are available. Question-8 What are the advantages of electrostatic plotters?
Answer- Following are the advantages of electrostatic plotters- 1. They are faster then pen plotters and very high quality printers. Recent electrostatic plotters includes a scan conversion capability. They make multiple passes over the paper to plot color picture.
Question-9 What is meant by scan code? Answer- When a key is pressed on the keyboard, the keyboard controller places a code carry to the key pressed in to the part of the memory called as the keyboard buffer.
This code is called as scan code. Question Define Random and Raster scan displays?
Answer- Random scan is a method in which display is made by electronic beam, which is directed only to the points or parts of the screen where picture is to be drawn.
The Raster scan system is a scanning technique in which the electron sweep from top to bottom and from left to right. The intensity is turned on or off to light and un-light the pixel. Run length encoding is a compression technique used to store the intensity values in the frame buffer, which store search scan line as a set of integer pairs.
One number each pair indicates an intensity value, and second number specifies the number of adjacent pixels on the scan line that are to have that intensity value. What is point in the computer graphics system? Write short notes on lines?
Define Circle? Circle is defined by its center xc, yc and its radius in user coordinate units. What are the various attributes of a line? The line type, width and color are the attributes of the line. The line type include solid line, dashed lines, and dotted lines.
What is anti aliasing? The process of adjusting intensities of the pixels along the line to minimize the effect of aliasing is called anti aliasing. What is Transformation? What is translation? Translation is the process of changing the position of an object in a straight-line path from one coordinate location to another.
Every point x , y in the object must under go a displacement to x ,y. What is rotation? A 2-D rotation is done by re positioning the coordinates along a circular path, in the x-y plane by making an angle with the axes. The transformation is given by: What is scaling? What is shearing? The shearing transformation actually slants the object along the X direction or the Y direction as required. What is reflection? The reflection is actually the transformation that produces a mirror image of an object.
For this use some angles and lines of reflection. What are the two classifications of shear transformation? X shear, y shear. Find the rotation matrix and the resultant point. Differentiate serif and sans serif fonts. Give one example Serif fonts has a little decoration at the end of the letter,but serif font has not. Times, new century schoolbook is the examples of serif fonts. Arial, optima are examples for sanserif fonts.
A portion of a picture that is to be displayed by a window is known as window port.
The display area of the part selected or the form in which the selected part is viewed is known as view port. Define clipping? Clipping is the method of cutting a graphics display to neatly fit a predefined graphics region or the view port. What is the need of homogeneous coordinates? To perform more than one transformation at a time, use homogeneous coordinates or matrixes. They reduce unwanted calculations intermediate steps saves time and memory and produce a sequence of transformations.
Find the rotation matrix and the resultant. Name any three font editing tools. Your email address will not be published.