Homework #14

(Under Construction)

• Goal: Drawing basic elements such as rectangles and ellipses with different color and hatching styles.
• Please UPLOAD your homework (ZIP or RAR file) to TA at http://ms11.voip.edu.tw/cs102/
• Deadline: 2008/5/23 10:00 AM
• Students 94321014, 94321018, 94321019, 94321021, 94321022, 94321024, 94321027, 94321028, 94321032, 94321036, 94321037, 94321042 must demonstrate their programs to Prof. Wu.
• Assignments:
  1. Hatching Styles
     • Write an SDI application which draws rectangles with different hatching styles as follows. You should use a for-loop to draw the rectangles.
       
     • Hint: In WinDGI.h, these symbolic constants are defined:

       	     /* Hatch Styles */
       	     #define HS_HORIZONTAL       0       /* ----- */
       	     #define HS_VERTICAL         1       /* ||||| */
       	     #define HS_FDIAGONAL        2       /* \\\\\ */
       	     #define HS_BDIAGONAL        3       /* ///// */
       	     #define HS_CROSS            4       /* +++++ */
       	     #define HS_DIAGCROSS        5       /* xxxxx */
       	    
       
       	     /* Pen Styles */
       	     #define PS_SOLID            0
       	     #define PS_DASH             1       /* -------  */
       	     #define PS_DOT              2       /* .......  */
       	     #define PS_DASHDOT          3       /* _._._._  */
       	     #define PS_DASHDOTDOT       4       /* _.._.._  */
       	     #define PS_NULL             5
       	    

  2. Throw the Dice
     • Each dice has face values 1, 2, 3, 4, 5, 6 and the probability that face with value 1 will be on top is 1/6. Assume the probability of each value to be on top is the same.
     • When you throw two dices, the summation of the top two faces will be within the range (inclusive) 2..12. But their probability is not equally likely or 1/12. The probability that the sum will be two is 1/36, but the probability that some will be three is 2/36 and so on.
     • Let N denote the number of throws. Write an SDI application to simulate the occurrence of each value within the range 2..12 when N = 100.
     • Store the occurrence of all values in an integer array, and draw a bar chart showing their heights which is proportional to the number of their occurrence.
     • The usage of random number generator was introduced in HW 9 in last semester.
     • A sample output is shown as below. You may click the "New Document" button in the toolbar to generate new simulation.