Top 550+ Solved Computer Graphics MCQ Questions Answer
Q. when a line with end-points (20,10) and (30,18) is to be drawn using DDA line drawing algrithm, ………is chosen as one raster unit.
a. ??x
b. ??y
c. a or b
d. any of above
Q. when a line is to be drawn from (0,0) to (6,6) using DDA line drawing algorithm, the initial values for x and y are……..
a. 0.5, 0.5
b. (-0.5), (-0.5)
c. 0, (-0.5)
d. 0.5, 0
Q. the DDA line drawing algorithm is …….. Dependent.
a. orientation
b. length
c. end points
d. display
Q. floating point algorithm in DDA algorithm is……..
a. time efficient
b. time consuming
c. fast
d. slow
Q. DDA line drawing algorithm for calculating pixel position is ……… the direct use of equation y = mx + b
a. slower than
b. faster than
c. of equal speed to that of
d. none of these
Q. alorithm those use the outputs of the previous iteration, in the computation of outputs in the current iteration are called
a. successive approximation
b. incremental
c. double-referencing
d. scan-line
Q. the advantage of Bresenham's algorithm over conventional DDA algorithm is …….?
a. no rounding operation
b. use of integer addition and subtraction
c. producing smooth appearance
d. less number of iteration
Q. A dashed line could be displayed by generating_________.
a. inter dash spacing
b. very short dashes
c. both a and b
d. a or b
Q. A dotted line can be displayed by generating
a. very short dashes with spacing equal to and greater than dash size
b. very long dashes with spacing equal to or greater than dash size
c. very short dashes with spacing equal to and greater than dash size
d. dots
Q. In an application program, to set line-type attributes the following statement is used.
a. setlinetype(lt)
b. setlinetype(lt)
c. setlinetype(lt)
d. setline()
Q. The algorithm which displays line-type attributes by plotting pixel spans is
a. raster line algorithm
b. raster scan algorithm
c. random line algorithm
d. random scan algorithm
Q. the line drawn using line drawing algorithm should be displayed with ……brightness.
a. varying
b. constant
c. maximum
d. minimum