Draw an image from an array!!!!!!!!!!!!!!!!!!!!!!
Hi all , I have written a code to draw an image from an array using the following function called createimage( ) but I dont see an image in my image panel. Please let me know what is the reason for not getting that image.
// ARRAY OF SIZE 10*10
int w=10,h=10;
int[] line={100, 120, 10, 40, 50, 60, 70, 80, 70, 80,
90, 10, 10, 100, 90, 60, 70, 10, 100, 90,
30, 40, 50,60, 70, 20, 40, 50, 0,0,
70, 80, 90,90, 90, 90, 80, 70, 20, 30,
30, 40, 50,60, 50, 60, 70, 10, 120, 120,
123, 80, 70,60, 20, 10, 20, 30, 40,90,
10 , 60, 70,80, 40, 50, 30, 20, 50, 60,
70, 80, 100, 120, 120,100,110,110,120,110,
105,103, 104, 50, 10, 30, 70, 02, 70, 80,
40, 30, 02, 90, 70, 60, 50, 50, 60, 40,
};
Toolkit tk = Toolkit.getDefaultToolkit();
Image imageline = tk
.createImage(new MemoryImageSource(w, h, line, 0, w));
// DISPLAY THE IMAGE IMAGE LINE
final JFrame f = new JFrame("BlackAndWhite");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container cp = f.getContentPane();
cp.setLayout(new GridLayout(1,2));
cp.add(new JLabel(new ImageIcon(imageline)));
f.pack();
SwingUtilities.invokeLater(new Runnable(){
public void run() {
f.setSize(150,150);
f.setLocationRelativeTo(null);
f.setVisible(true);
}
});
[1394 byte] By [
ephemerala] at [2007-10-3 3:13:40]
Hi,
I don't know where exactly your problem is, but try my code (not exactly mine, I borrowed some pieces from MemoryImageSource class from documentation)
It works quite well so try to do it in the same way
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.image.MemoryImageSource;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingUtilities;
public class ImageTest {
public ImageTest() {
int w = 100;
int h = 100;
int pix[] = new int[w * h];
int index = 0;
for (int y = 0; y < h; y++) {
int red = (y * 255) / (h - 1);
for (int x = 0; x < w; x++) {
int blue = (x * 255) / (w - 1);
pix[index++] = (255 << 24) | (red << 16) | blue;
}
}
final JFrame f = new JFrame("BlackAndWhite");
Image img = f.createImage(new MemoryImageSource(w, h, pix, 0, w));
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container cp = f.getContentPane();
cp.setLayout(new BorderLayout());
f.add(new JLabel(new ImageIcon(img)));
f.pack();
SwingUtilities.invokeLater(new Runnable(){
public void run() {
f.setSize(150,150);
f.setLocationRelativeTo(null);
f.setVisible(true);
}
});
}
public static void main(String[] args) {
new ImageTest();
}
}
Hope this helps
L.P.
lukika at 2007-7-14 21:04:42 >
