Trivial rejection case of cohen sutherland line clippings, Computer Graphics

Assignment Help:

Trivial Rejection Case of cohen sutherland line clippings

Case: it  is Trivial Rejection Case; if the logical intersection (AND) of the bit codes of the end points P, Q of the line segment is ≠ 0000 then line segment is not observable or is rejected.

Notice that, in figure of various cases of Cohen Sutherland Line Clippings, line 2 is totally on the top of the window but line 3 is neither on top nor at the in bottom plus, either on the left hand side nor on the right hand side of the window. We utilize the standard formula of logical ANDing to test the non visibility of the line segment.

675_Trivial Rejection Case of cohen sutherland line clippings.png

Figure: Cohen Sutherland line clipping

 Consequently, to test the visibility of line 2 and 3 we require calculating the logical intersection of end points for line 2 and lining 3.

Line l2: bit code of end points are 1010 and 1000 logical intersection of end points = (1010) ^ (1000) = 1000 like logical intersection ≠ 0000. Hence line 2 will be invisible.

Line l3: end points have bit codes 0010 and 0101 here logical intersection = 0000, that is, 0010 ^ 0101 = 0000 from the Figure of various cases of Cohen Sutherland Line Clippings, the line is invisible. Likewise in line 4 one end point is on top and another on the bottom therefore, logical intersection is 0000 although then it is partially visible, similar is true along with line 5. Such are exact cases and we will illustrate them in case 3.


Related Discussions:- Trivial rejection case of cohen sutherland line clippings

Tcp connection, what is the opengl code for tcp connection?

what is the opengl code for tcp connection?

Use of interactive multimedia in education, Use of Interactive Multimedia i...

Use of Interactive Multimedia in Education Virtual reality, where 3-D experimental training can simulate real situations. Computer simulations of things too expensive,

How many times will vertex appear in the intersection points, 1. For the po...

1. For the polygon shown in Figure on the next page, how many times will the vertex V 1 appear in the set of intersection points for the scan line passing through that point?  How

Find the normalization transformation, Illustration: Find the normalizatio...

Illustration: Find the normalization transformation N that uses the rectangle W (1, 1), X (5, 3), Y (4, 5) and Z (0, 3) as a window and also the normalized device screen like the

What do you understand by the term contone, Question : (a) What do you...

Question : (a) What do you understand by the term ‘contone'? (b) What are spot colours? (c) You have been asked to prepare an artwork (a magazine) to send to a printer.

Composite transformations - 2-d and 3-d transformations, Composite Transfor...

Composite Transformations - 2-d and 3-d Transformations We can build complicated transformations as rotation regarding to an arbitrary point, mirror reflection about a line, a

Write short notes on active and passive transformations, Write short notes ...

Write short notes on active and passive transformations?  In the active transformation the points x and x| show different coordinates of the similar coordinate system. Here all

Whether cavalier projection is a parallel projection, State whether the fol...

State whether the following statements are true or false. Give reasons/examples to justify your answer.  a)  Cavalier projection is a parallel projection. b)  Angles are not

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd