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random bright coloe

Posted on 2003-02-20
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i can generate random color but sometimes the  color gets to dark anyway to solve this problem? below is how random color is generated

int red =  ( int ) ( Math.random ( ) * 256 );
etc
etc
0
Question by:bobbybuilder
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LVL 86

Expert Comment

ID: 7988733
0

LVL 86

Expert Comment

ID: 7988743
The idea being, you can leave the brightness high and simply vary the hue and saturation
0

Author Comment

ID: 7994939
i have tried it, my attempt is below is that the way to go about it. i still have to fiddle with the numbers as i still get dark colors

int red =  ( int ) ( Math.random ( ) * 256 ); <-should these be float or it does not matter
int blue =   ( int ) ( Math.random ( ) * 256 );
int green = ( int ) ( Math.random ( ) * 256 );

Color c = new Color(red,blue,green);

c.getHSBColor( (float) 500 ,(float) 0.1 , (float) 1.0);
0

LVL 86

Accepted Solution

CEHJ earned 200 total points
ID: 7996252
This is the sort of thing i mean:

import java.awt.*;
import java.awt.image.*;
import java.awt.geom.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;

public class RandomColor {

public static void main(String[] args){
JFrame f = new JFrame();
ShapePanel shapePanel = new ShapePanel();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setSize(300, 200);
f.setVisible(true);
}

}

class ShapePanel extends JPanel implements Runnable {
boolean highlighted;
Shape shape;
Paint currentPaint;

public ShapePanel() {
super();
shape = new Rectangle2D.Float(0.f, 0.f, 100.f, 50.f);
currentPaint = Color.red;
}

public void paintComponent(Graphics _g) {
Graphics2D g = (Graphics2D)_g;
g.setPaint(currentPaint);
g.fill(shape);
g.draw(shape);
}

public Paint getCurrentPaint() {
return Color.getHSBColor((float)Math.random(), (float)Math.random(), 1.0f);
}

public void run() {
while (true) {
try {
currentPaint = getCurrentPaint();
repaint();
}
catch(Exception e){
e.printStackTrace();
}
}
}

}
0

Author Comment

ID: 7996517
thxs
0

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