Computer Graphic (CG) Semester 4 (Revised Course) (3 Hours) May 2011

Computer Graphic (CG) Semester 4 (Revised Course) (3 Hours) May 2011
1.	(a)	What are different Application of Computer graphics?	05
	(b)	Explain inside outside test used in filling algorithms.	05
	(c)	Explain in brief Raster-scan display System	10
2.	(a)	Explain with example Scan fill algorithm	10
	(b)	Derive matrix for 2-D Rotation about an arbitrary point.	10
3.	(a)	Derive the transformation matrix, when point P(x,y) is reflected about a line y=mx+c.	10
	(b)	Give the steps along with the transformation matrix for the mapping of the 2-D object from window to viewport.	10
4.	(a)	Give the clipping algorithm which uses area codes for the end points of the line segment. Test it for a line P1P2 Where P1=(9. 9) and P2=(50, 20) against the window with (Xwmin, Ywmin)=(10, 10) and (Xwmax, Ywmax)=(20, 20).	15
	(b)	Explain bit map method for character generation	05
5.	(a)	Develop an algorithm and give the steps for the moving car (side view).	10
	(b)	Develop an algorithm and give the steps to continuously rotate a Triangle about a point.	10
6.	(a)	Give the properties of B-spline curve.	10
	(b)	Explain Cyrus Beck line clipping algorithm	10
7.	Write short notes on :-		20
	(a)	Fractal
	(b)	Back face removal technique
	(c)	Perspective Projections
	(d)	Color models
	(e)	Half toning
	(f)	Octree.