fill area primitive A
computer-graphics output primitive that specifies a closed curve to be filled with a solid color
, a hatching, or a pattern.
What is area fill algorithm?
Area Fill Algorithm • If
the boundary of some region is specified
in a single color, we can fill the interior of this region, pixel by pixel, until the boundary color is encountered. This method, called the boundary-fill algorithm, is employed in interactive painting packages, where interior points are easily selected.
What is fill area function?
Filled Area Primitives: Area filling is
a method or process that helps us to fill an object, area, or image
. We can easily fill the polygon. The polygon filling is defined as filling or highlighting all the pixels. The pixels appear inside the polygon shape with any color other than the background color.
What is filled polygon?
Polygon Filling Filling a Polygon is the
process of coloring every pixel that comes inside the Polygon region
.
Which method is used to fill the polygon?
Scan Line Algorithm
Step 1 − Find out the Ymin and Ymax from the given polygon. Step 2 − ScanLine intersects with each edge of the polygon from Ymin to Ymax. Name each intersection point of the polygon. As per the figure shown above, they are named as p0, p1, p2, p3.
What are the types of boundary fill algorithm?
Introduction : Boundary Fill Algorithm starts at a pixel inside the
polygon to be filled
and paints the interior proceeding outwards towards the boundary. This algorithm works only if the color with which the region has to be filled and the color of the boundary of the region are different.
What is line clipping algorithm?
In computer graphics, line clipping is the process of removing lines or portions of lines outside an area of interest. … There are two common algorithms for line clipping:
Cohen–Sutherland and Liang–Barsky
. A line-clipping method consists of various parts.
Which region filling algorithm can be used to fill areas where boundary Colour does not matter?
By this algorithm, we can recolor an area that is not defined within a single color boundary. In this, we can paint such areas by replacing a color instead of searching for a boundary color value. This whole approach is termed as flood fill algorithm.
Which algorithm is a faster method for calculating pixel positions?
Which algorithm is a faster method for calculating pixel positions? Explanation:
The DDA
is a faster method for calculating pixel positions. Explanation: The DDA algorithm takes more time than other algorithm. Explanation: Bresenham's line algorithm is a very efficient and accurate algorithm.
What is seed point in an area filling?
In this method, a point or seed
which is inside region is selected
. This point is called a seed point. … In fill algorithm, we start from a specified interior point (x, y) and reassign all pixel values are currently set to a given interior color with the desired color.
How many types of polygon filling are there?
Three types
of polygon are recognized, figure (1): convex, concave, and complex.
What is flood fill technique?
Flood fill algorithm is also known as a
seed fill algorithm
. It determines the area which is connected to a given node in a multi-dimensional array. This algorithm works by filling or recolouring a selected area containing different colours at the inside portion and therefore the boundary of the image.
Which of the following algorithm is used to fill the interior of a polygon?
| Q. The algorithm used for filling the interior of a polygon is called | B. boundary fill algorithm | C. scan line polygon fill algorithm | D. none of these | Answer» a. flood fill algorithm |
|---|
Is the basic approach used to fill the polygon?
Polygon Filling:-
There are two basic approaches used to fill the polygon. One way to fill polygon is to start from
given “seed”
, point known to be inside the polygon and highlight outward from this point i.e. neigh-bouring pixels until we encounter the boundary pixels.
Which function fills the color in an object?
setfillstyle() and floodfill() in C
h contains
setfillstyle() function
which sets the current fill pattern and fill color. floodfill() function is used to fill an enclosed area. Current fill pattern and fill color is used to fill the area.
What is scanline in computer graphics?
A scan line (also scanline) is one line, or row, in a raster scanning pattern, such as a line of video on a cathode ray tube (CRT) display of a television set or computer monitor. … The term is used, by analogy,
for a single row of pixels in a raster graphics
image.
