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CS 602-Computer Graphics GDB No.1 Solution and Discussion Fall 2013 Due Date: February 14, 2014

GDB For Computer Graphics (CS602)

Important Instructions:

Ø Your discussion must be based on logical facts.

Ø A concise, coherent and to the point answer is preferred over lengthy comments.

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Topic/Area for Discussion:


You are quite familiar with the clipping concept as discussed in CS602 lectures. You have seen mainly four cases in which clipping are required.

1)   The starting point p1 is outside and ending point p2 lies inside clipping rectangle.

2)   The ending point p2 is inside and starting point p1 lies outside the clipping rectangle.

3)   Whole object with both starting and ending point (p1 & p2) lies inside the clipping rectangle.

4)   Whole object with both starting and ending point (p1 & p2) lies outside the clipping rectangle.

You have learned well how these cases are handled and points are clipped.


Now think critically and read this situation.

“If the object lies inside the clipping rectangle and it’s starting and ending points (p1 & p2) lies outside the clipping rectangle”.


What solution will be adopted to handle above mentioned situation?


Explain and justify your answer with logic.

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Replies to This Discussion

Please discuss here about this GDB.

koi to discuss kro 

Friends please batao p1 and p2 points clipping k bahar ayengay ?? 

Please Discuss here about this GDB.Thanks

Our main purpose here discussion not just Solution

We are here with you hands in hands to facilitate your learning and do not appreciate the idea of copying or replicating solutions.

Object will get new starting and ending points at the boundary of the clipping rectangle.

Because the object lies inside the clipping rectangle, or atleast that's my idea.

For reference look at handouts Page 150 - 154

i think two intersection points bany gy p1' and p2'...if the object is inside the clipping rectangle and p1 and p2 are outside the rectangle.....AM i right??

right sir  no problem..

Muhammad Basil i think ur idea is correct

Dear Students Don’t wait for solution post your problems here and discuss ... after discussion a perfect solution will come in a result. So, Start it now, replies here give your comments according to your knowledge and understandings....

according to above gdb it is the maybe clipping case ... :P 

mjy kch smj nae a rhe 


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