Arch227B/D242/D142

Assignment 1: 3D Mathematical Structure

Work in groups of two.

Ask questions to Grace (grace_tsai@yahoo.com) or Kostas (kostas@ucla.edu)

Objective:

• To demonstrate the use of mathematical functions.
• To learn how to compile, run, and publish a java applet/application.
• To demonstrate understanding of 3D concepts.

Description

Write the source code (with comments) for an applet that will display a 100x100 cloud of points created through assigning z values (height) as shown in the code below. Fill in the c1, c2, and c3 variables using mathematical functions to create interesting patterns (for example c1 may look like: int c1 = (int)(255. * Math.sin(Math.PI/180. * i));. ). Then rotate the cloud structure and take snapshots of the display:

. . . .

//*****************************************

public void init(){

MyPoint[] points;

Points = new MyPoint[100*100];

for(int i=0; i<100; i++)

for(int j=0; j<100; j++){

int c1 =

int c2 =

int c3 =

points[i*100+j] = new MyPoint((double)i, (double)j,

(double)((c1+c2+c3)/3));

}

}

. . . .

• Make a 24x36 panel and display the code and output (to be displayed)
• Zip your project and source files and call it yourNames.zip (yourNames is a variable for the two partners last names).
• Send a brief e-mail to grace_tsai@yahoo.com explaining what you did, include the URL address of where your applet is posted and attach the zipped project.

Bonus:

Excessive creativity will be kindly appreciated and highly rewarded.

Deadline:

Thursday Jan 25, 2001 (midnight)