How is region code applied in Cohen Sutherland line 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 Abrl region code?
The algorithm divides the 2D space in 9 regions: This is also known as ABRL CODE Figure: 2D space in 9 regions. A (0100) B (0010) AND Operation Then get the new point C (0000) C (0000) B (0010) AND Operation Then get the new point D (0000) Then we have the final line after clipping is CD.
What are limitations of Cohen Sutherland line clipping algorithm?
Limitations of Cohen-Sutherland clipping algorithm
- Clipping window region can be rectangular in shape only and no other polygonal shaped window is allowed.
- Edges of rectangular shaped clipping window has to be parallel to the x-axis and y-axis.
What is Sutherland hodgeman polygon clipping?
It is performed by processing the boundary of polygon against each window corner or edge. First of all entire polygon is clipped against one edge, then resulting polygon is considered, then the polygon is considered against the second edge, so on for all four edges.
What is line clipping give example?
In computer graphics, line clipping is the process of removing lines or portions of lines outside an area of interest. Typically, any line or part there of which is outside of the viewing area is removed. There are two common algorithms for line clipping: Cohen–Sutherland and Liang–Barsky.
What is the advantage of Cohen Sutherland line clipping?
Advantage of Cohen Sutherland Line Clipping: It calculates end-points very quickly and rejects and accepts lines quickly. It can clip pictures much large than screen size.
What is limitations of Cohen-Sutherland line clipping algorithm?
Limitations of Cohen-Sutherland clipping algorithm 1) Clipping window region can be rectangular in shape only and no other polygonal shaped window is allowed. 2) Edges of rectangular shaped clipping window has to be parallel to the x-axis and y-axis.