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Explain Bresenham s circle drawing algorithm, OR Explain midpoint circle algorithm for scan converting a circle.
Midpoint Circle Algorithm 1. Input radius r and circle center (x c , y c) , and obtain the first point on the circumference of a circle centered on the origin as (x0, y0,) = (0, r) 2. Calculate the initial value of the decision parameter as p0 = 5/4-r 3. At each x k position, starting at k = 0, perform the following test: If p k <0 , the next point along the circle centered on (0,0) is (x k+1,y k) and p k+1 = p k + 2x k+1 + 1 Otherwise, the next point the circle is ( x k + 1, y k -1) and p k+1 = p k+ 2x k+1 + 1 -2 y k where 2x k+1 = 2xk +2 and 2yk+1 = 2y k -2. 4. Determine symmetry points in the other seven octants. 5. Move each calculated pixel position (x, y) onto the circular path centered on (x c,y c) and plot the coordinate values: x = x +x c, y = y + y c 6. Repeat steps 3 through 5 until x > y
Question : (a) List and describe important aspects to take into consideration when looking at paper for print. (b) Describe clearly the meaning of the following words: I.
QUESTION 1 Assume you work as Producer for the national TV channel in Mauritius. As such, you have been requested by the Director of Production to submit a proposal in the for
Explain the merits and demerits of Penetration techniques. The merits and demerits of the Penetration techniques are as follows: It is an inexpensive method. It h
Approaches to Area Filling Some other approaches to area filling are Scan line polygon fill algorithm Boundary fill algorithm Flood fill algorithm.
Assumption for Diffuse Reflection - Polygon Rendering i) the diffuse reflections by the surface are scattered along with equal intensity in each direction, independent of vie
How many 128 x 8 RAM chips are needed to provide a memory capacity of 4096 16 bits?
Steps for clip a line segment-PQ Initially, find all the points of intersections of the line segment PQ along with the edges of the polygonal window and describe them eith
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Ray Tracing - Polygon Rendering and Ray Tracing Methods Basically Ray tracing is an exercise that is performed to attain the realism in a scene. In easy way Ray Tracing is a w
Question: Adobe InDesign software is used to create works such as posters, flyers, brochures, magazines and books. Designers and graphics production artists are the principa
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