COMP4033 计算机图形

COMP4033 Assignment 1 - Basic Computer Graphics (5%)
Due: 11:59pm, 13 March 2021
Complete the following two exercises by writing a Java program for each:

1. Draw a set of concentric pairs of squares, each consisting of a square with horizontal and vertical edges
   and one rotated through 45°. Except for the outermost square, the vertices of each square are the
   midpoints of the edges of its immediately surrounding square, as Figure 1 shows. It is required that all
   lines are exactly straight, and that vertices of smaller squares lie exactly on the edges of larger ones.
   Figure 1. Concentric squares
2. Write a program that draws a pattern of hexagons, as shown in Figure 2. The vertices of a (regular)
   hexagon lie on its so-called circumscribed circle. The user must be able to specify the radius of this circle
   by clicking a point near the upper-left corner of the drawing rectangle. Then the distance between that
   point and that corner is to be used as the radius of the circle just mentioned. There must be as many
   hexagons of the specified size as possible and the margins on the left and the right must be equal. The
   same applies to the upper and lower margins, as Figure 2 shows.
   Note: you should try to minimize the number of lines that are drawn more than once. You can see the
   repeated lines by using a different foreground color for each round of drawing, or better, by using the
   XOR writing mode with the foreground color being black (if you know how to use XOR mode).
   Figure 2. Hexagons
   Put the 2 Java source programs in a ZIP file and name it as “Ass1_1234567890" (replace
3. with your student ID number). Submit your ZIP file through iSpace before the due
   time. Late submissions will NOT be accepted.