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Write a polygon clipping algorithm to clip a polygon against rectangular clipping are.
Read the vertices of polygon to be clipped. 2. Read the coordinates of the rectangular clipping area against which it has to be clipped. 3. Considering the edge of rectangular area one at a time we apply the following algorithm. 4. /* p is the input vertex, vertex under consideration S is the previous vertex. F is the first point. E is the edge under consideration (of rectangular 7 area against which it has to be clipped) */ Input vertex P 5. If P is the point store it in a variable say F and proceed to step 7. 6. If P is not the first point then if edge 5t5 intersect edge E under consideration. Computer the intersection point 1 Output vertex 1 else proceed to step 7. 7. Store P in variable S (S=P) 8. If S is on left side of edge E output vertex S. 9. Repeat steps 4 to 8 till all the vertices are processed 10. /* for closing polygon */ if 3f intersect E Computer intersection point 1 output vertex 1 11. Repeat the above steps (4 to 10) with new output polygon obtained from step 10 for other edges of rectangular area under consideration.
Determine the advantages of raster-scan systems (i) Rasterisation is now performed faster since a special purpose processor is used. (ii) The CPU is not slowed down by the
Write about area subdivision method
QUESTION 1. You are a consultant in the field of video production and video editing. You haven been requested to participate in a debate over analog and digital video. Write
What are the advantages of rendering by patch splitting? i. It is fast-especially on workstations with a hardware polygon-rendering pipeline. ii. Its speed can be varied b
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Describe briefly Sutherland Cohen line clipping algorithm. OR Describe Cohen Sutherland line clipping algorithm. Cohen Sutherland line clipping algorithm In this algorith
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