Question

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

The question was asked in quiz.

This question is from Two Dimensional Viewing in division 2D Transformation and Viewing of Computer Graphics

Answer 1

The correct choice is (d) world co-ordinates

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.