Drawing sinusoidal wave

Posted on 1998-12-18
Medium Priority
Last Modified: 2008-03-10
Hi all again!! do you have a function which draws a sin wave using the sin method of Math class? Or at least, can you guide me in programming that function by myself?

Thanks a lot in advance
Question by:skel
1 Comment

Accepted Solution

malexiev earned 200 total points
ID: 1229731
Try this:

  import java.awt.*;  
  import java.applet.*;
  public class Test
  extends Applet {  
    private final double scale = 50;
    private double step = 1 / scale;
    public Test() {
    public void drawSin(Graphics g, double x0, double x1) {
      int i = 0;      
      int y0 = getBounds().height >> 1;
      for (double f = x0; f < x1; f += step,i++) {
        g.drawLine(i, (int)((Math.sin(f)) * scale + y0),
                   i, (int)((Math.sin(f)) * scale + y0));
    public void paint(Graphics g) {
      drawSin(g, -Math.PI, Math.PI);

Hope this helps.

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Introduction This article is the last of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers our test design approach and then goes through a simple test case example, how …
Basic understanding on "OO- Object Orientation" is needed for designing a logical solution to solve a problem. Basic OOAD is a prerequisite for a coder to ensure that they follow the basic design of OO. This would help developers to understand the b…
Viewers learn about the “for” loop and how it works in Java. By comparing it to the while loop learned before, viewers can make the transition easily. You will learn about the formatting of the for loop as we write a program that prints even numbers…
Video by: Michael
Viewers learn about how to reduce the potential repetitiveness of coding in main by developing methods to perform specific tasks for their program. Additionally, objects are introduced for the purpose of learning how to call methods in Java. Define …

624 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question