ARAB OPEN UNIVERSITY Faculty of Computer Studies CS240, Introduction to computer graphics Fall 2015-2016 12-12-2015 Note: This TMA comprises of five questions. The TMA is marked out of 60. All questions should be answered. TMA Marking As per AOU rules and

ARAB OPEN UNIVERSITY
Faculty of Computer Studies
CS240, Introduction to computer graphics
Fall 2015-2016
12-12-2015
Note: This TMA comprises of five questions. The TMA is marked out of 60. All questions should be answered.
TMA Marking
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2
Question one [4 marks]
Computer graphics has two main tasks namely modelling and rendering, briefly define each.
Question Two [4 marks]
State the main steps for programming in JOGL
Question Three [17 marks]
a. Write down a Java 2D Program using Graphics method to plot the following shape [7 marks]
b. Run the following code segment and print the output [10 Marks]
public void paintComponent(Graphics g){
super.paintComponent(g);
Graphics2D g2=(Graphics2D) g;
Shape S1=new Ellipse2D.Double(0, 0, 200, 200);
Shape S2=new Rectangle2D.Double(100, 100, 100, 100);
Shape S3=new Rectangle2D.Double(0, 0, 100, 100);
Area a1;
Area a2;
Area a3;
a2= new Area(S2);
a1= new Area(S1);
a3=new Area(S3);
a2.add(a3);
a1.intersect(a2);
}
(10,8)
(10,50)
(60,50)
(60,8)
3
Question Four [20 marks]
a. Write a Java 2D code to develop the following parametric equation:
Given that a=20 and b=20. [3 marks]
b. Quadratic curves are commonly used to construct flexible graphical shapes. Mention how many points are required to draw a quadratic curve and mention the function used in Java2D to construct such curve discussing the function parameters. [4 marks]
c. Determine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using even Determine (by shading) the interior of following shape using even Determine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using even Determine (by shading) the interior of following shape using even Determine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using even Determine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using even Determine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using even Determine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using even Determine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using even Determine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using even Determine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using even Determine (by shading) the interior of following shape using evenDetermine (by shading) the interior of following shape using even-odd ruleodd ruleodd ruleodd rule odd ruleodd ruleodd rule assuming the path point ordering is as specified on figure assuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figure assuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figure assuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figure assuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figure assuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figure assuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figure assuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figure assuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figure assuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figure assuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figureassuming the path point ordering is as specified on figure . [5 marks]
d. Mention the meaning of each of the following lines [8 marks]
 a1.exclusiveOr(a2);
 g2.translate(180, 0);
 a1.subtract(a2)
 g2.fill(a1);
given that a1,a2 are declared as Area and g2 is declared as Graphics Question Five [15 marks]
a. What is meant by winding rule? Mention and differentiate between two of the winding rules used in Java2D.
[5 marks]
4
b. Write a Java code to draw the following shape using constructive area geometry
[10 marks]
End of questions