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Rune Zedeler · Guest

Not sure whether this is the right group. Help on that appreciated as well.

I need to draw lines in subpixelprecision. Downscaling the canvas from
Graphics2D should imho do that.

The program

import java.awt.*;
import javax.swing.*;
public class TestGfx2D extends JPanel {
public TestGfx2D() {
JFrame f = new JFrame();
setPreferredSize(new Dimension(16,16));
f.add(this);
f.pack();
f.setVisible(true);
}
public void paint(Graphics g) {
Graphics2D g2 = (Graphics2D)g;
g2.scale(.25,.25);
for(int i=0; i<6; i++) {
g2.drawLine(0,9*i,40,10+9*i);
}
}
public static void main(String[] args) {
new TestGfx2D();
}
}

thus should yield:

|XXXX
| XXXX
|XXX XXX
| XXXX
|XX XXXX
| XXXX
|X XXXX
| XXXX X
| XXXX
|XXXX XX
| XXXX
|XXX XXX
| XXXX
| XXXX

- men it /yields/ on my system (sun java 5, ubuntu):

|XXX
| XXXXX
|XXX XXX
| XXXXX
|XX XXX
| XXX
|XX XXXX
| XXX XX
| XXXX
|XXX XX
| XXXXX
|XXX XXX
| XXXXX
| XXX

I tried setting renderinghints, but I cannot get subpixelprecision
without getting antialias at the same time :-(

Are others experiencing the same, and does anybody know a workaround?
(Really not into having to implement my own subpixel-stuff)

-Rune