Consider the following statements with respect to approaches to fill area on raster system: P: To determine the overlap intervals for scan lines that cross the area. Q: To start from a given interior position and paint outward from this point until we encounter the specific boundary conditions.
Both P and Q
P describes scan-line filling: find the interior intervals along each scan line and fill them. Q describes seed filling, such as boundary fill or flood fill: expand from an interior pixel until the stopping condition is met. Both P and Q are valid.
Important Questions from Output Primitives
A/An _____ creates an image directly on paper by spraying ink.
Which of the following is not a component of Memory tube display ?
Which raster locations would be chosen by Bresenham’s algorithm when scan converting a line from (1, 1) to (8, 5) ?
Which of the following graphic primitives are considered as the basic building blocks of computer graphics ?
(a) Points (b) Lines (c) Polylines (d) Polygons
Codes :
The end points of a given line are (0, 0) and (6, 18). Compute each value of y as x steps from 0 to 3, by using equation of straight line :
