Hi all,
Couldn't find a specific thread addressing this, so I'll post a new one. It may
just be that I am still naive about Java2D...
I have a simple window which renders stuff and draws a grid on top. I've
recently added code which renders labels for the grid lines; this works fine,
except when the window repaints itself after being obscured or resized; in this
case, the horizontal labels always render properly, but the vertical labels
(which have an AffineTransform applied) do not (see this image:
http://www.typically.net/FTP/2d_grid_bug_all.png ).
The code which renders the labels is:
[code]
double space = grid.getSpacing();
int size = grid.getLabelSize();
Font font = new Font("Courier New", Font.PLAIN, size);
Color c = grid.getLabelColour();
g.setColor(c);
g.setFont(font);
FontRenderContext frc = g.getFontRenderContext();
int margin = 2;
int offset = 1;
String format = NumberFunctions.getReasonableFormat(space);
AffineTransform transform_old = g.getTransform();
for (; x_pos < x_max; x_pos += space){
Point pt = getScreenPoint(new Point2f((float)x_pos, (float)y_min ));
pt.y -= margin;
pt.x -= offset;
TextLayout tl = new TextLayout(arDouble.getString(x_pos, format), font,
frc);
AffineTransform transform = new AffineTransform();
transform.rotate(-Math.PI / 2.0, pt.x, pt.y);
g.setTransform(transform);
tl.draw(g, pt.x, pt.y);
}
g.setTransform(transform_old);
for (; y_pos < y_max; y_pos += space){
Point pt = getScreenPoint(new Point2f((float)x_min, (float)y_pos ));
pt.x += margin;
pt.y -= offset;
TextLayout tl = new TextLayout(arDouble.getString(y_pos, format), font,
frc);
tl.draw(g, pt.x, pt.y);
}
[/code]
Any idea what's going on?
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