MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

COMPUTER GRAPHICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Any convenient co-ordinate system or Cartesian co-ordinates which can be used to define the picture is called ____
A
spherical co-ordinates
B
vector co-ordinates
C
viewport co-ordinates
D
world co-ordinates
Explanation: 

Detailed explanation-1: -1 Answer. To explain I would say: World Coordinate Systems (WCS) are the type of coordinate systems which describe the physical coordinates associated with a data array, such as sky coordinates. It is also used to denote wavelengths of a spectrum and to draw astronomical images.

Detailed explanation-2: -Any convenient Cartesian coordinate system, referred to as the world-coordinate reference frame, can be used to define the picture.

Detailed explanation-3: -World coordinate system (WCS) is the right handed cartesian co-ordinate system where we define the picture to be displayed. A finite region in the WCS is called the Window. The corresponding coordinate system on the display device where the image of the picture is displayed is called the physical coordinate system.

Detailed explanation-4: -Window to Viewport Transformation is the process of transforming 2D world-coordinate objects to device coordinates. Objects inside the world or clipping window are mapped to the viewport which is the area on the screen where world coordinates are mapped to be displayed.

Detailed explanation-5: -The world coordinate system is a continuous spatial coordinate system that specifies the location in an image independently of the pixel indices of the image. For more information about coordinate systems in Image Processing Toolbox™, see Image Coordinate Systems.

There is 1 question to complete.