What is midpoint line clipping algorithm?
Mid Point Subdivision Line Clipping Algorithm: It is used for clipping line. The line is divided in two parts. Mid points of line is obtained by dividing it in two short segments. Again division is done, by finding midpoint.
Why the mid point sub division line clipping algorithm is better than Cohen Sutherland algorithm?
The midpoint subdivision algorithm does not require any floating point operation to determine the point of intersection. This reduces the complexity of the algorithm and hence increases the speed of the algorithm. The accuracy is also higher in midpoint subdivision algorithm when compared to Cohen sutherland algorithm.
What is Cohen Sutherland clipping algorithm?
The Cohen–Sutherland algorithm is a computer-graphics algorithm used for line clipping. The algorithm divides a two-dimensional space into 9 regions and then efficiently determines the lines and portions of lines that are visible in the central region of interest (the viewport).
What is Cyrus Beck line clipping algorithm?
The Cyrus–Beck algorithm is a generalized line clipping algorithm. It was designed to be more efficient than the Cohen–Sutherland algorithm, which uses repetitive clipping. By this we select the point of intersection of line and clipping window where (dot product is 0) and hence clip the line.
Which of the following technique is used in midpoint subdivision algorithm?
Discussion Forum
| Que. | Which of the following technique is used in Midpoint Subdivision algorithm? |
|---|---|
| b. | Bubble sort |
| c. | Binary search |
| d. | Linear search |
| Answer:Binary search |
How do you draw a circle using the midpoint algorithm?
Mid-Point Circle Drawing Algorithm
- Find the mid-point p of the two possible pixels i.e (x-0.5, y+1)
- If p lies inside or on the circle perimeter, we plot the pixel (x, y+1), otherwise if it’s outside we plot the pixel (x-1, y+1)
Which line clipping algorithm is better?
The Liang-Barsky algorithm is a line clipping algorithm. This algorithm is more efficient than Cohen–Sutherland line clipping algorithm and can be extended to 3-Dimensional clipping. This algorithm is considered to be the faster parametric line-clipping algorithm.
Which line clipping algorithm is best?
Cohen-Sutherland Line Clipping Algorithm : In which 2-D space (in which line resides) is divided into 9 regions and then the lines and portions of lines which are visible in the central region of interest are determined efficiently. It quickly detects and dispenses with two common and trivial cases.
How many methods of text clipping are there?
Method of Text Clipping There are three following methods to perform text clipping. All or none string clipping: In this method, we only consider the string that is entirely inside the view pane (window).
How do you decide a given line to be clipped?
Clipping Case: If the line is neither visible case nor invisible case. It is considered to be clipped case. First of all, the category of a line is found based on nine regions given below. All nine regions are assigned codes.
How is midpoint subdivision used for line clipping?
It is used for clipping line. The line is divided in two parts. Mid points of line is obtained by dividing it in two short segments. Again division is done, by finding midpoint. This process is continued until line of visible and invisible category is obtained.
Which is more powerful algorithm for line clipping?
Sometimes it performs needless clipping. The algorithm was introduced by “You-Dong Liang” and “Brian A. Barsky.” It is used for line clipping. It is a more powerful algorithm than the Cohen-Sutherland algorithm. We can use the parametric equation of line and inequalities.
How do you find midpoint of a line?
The line is divided in two parts. Mid points of line is obtained by dividing it in two short segments. Again division is done, by finding midpoint. This process is continued until line of visible and invisible category is obtained.
How does line clipping work in computer graphics?
The line clipping process is implemented by following line clipping algorithms – This algorithm was named by “Danny Cohen” and “Ivan Sutherland.” The algorithm will work in the following steps: In this algorithm, we will divide the view pane into nineequal segments (as shown in the below figure) that only serve the viewport.