Re: [JAVA2D] Print BufferedImage Externally Generated
The clipping is because the imageable area of the paper may be less than
the physical size of the paper.
You need to get the imageable area from the PageFormat and then scale
your rendering (ie the final image) to fit.
You can also control this by specifying the imageable area in the
PageFormat but you'll need to use the javax.print
APIs to find out what is the hard liimit for the device
See
http://java.sun.com/javase/6/docs/api/javax/print/attribute/standard/MediaPrintableArea.html
But
>I'm trying to build up a BufferedImage using its Graphics component,
and then print that image using a Printable
Why? As in I don't know why you aren't rendering directly to the printer ?
If you do what you are doing you will get blocky output, unless you
create a very large image and scale
it to printer resolutions. Even then it means you won't get printer
fonts etc.
So I suspect your approach is costing you in
- output quality
- memory used
- performance
-phil.
[EMAIL PROTECTED] wrote:
Hi, I'm trying to build up a BufferedImage using its Graphics component, and
then print that image using a Printable. The problem is that some of my
operations on the graphics component seem to be lost, and when I print the
image, a lot of it is clipped off around the borders. The code below shows the
gist of what I'm doing.
// this method is in class A
foo(String text, Font font, B b, int x, int y) {
Graphics2D g2d = (Graphics2D) image.getGraphics();
g2d.setColor(Color.black); // this color gets lost when bar is called
g2d.setFont(font); // this font gets lost when bar is called
b.bar(text, x, y);
}
// this method is in class B
bar(String text, int x, int y) {
Graphics2D g2d = (Graphics2D) image.getGraphics();
g2d.drawString(text, x, y); // this does not get lost when the image is
printed
}
// this is the print method for the Printable, the image is passed to the
Printable
print(Graphics g, PageFormat pf, int pageIndex) {
if (pageIndex == 0) {
Graphics2D g2d = (Graphics2D)image.getGraphics();
g2d.translate(pf.getImageableX(), pf.getImageableY());
((Graphics2D)graphics).drawImage(image, null, 0, 0);
return Printable.PAGE_EXISTS;
} else {
return Printable.NO_SUCH_PAGE;
}
}
If I hardcode the color and font in the bar method, then the text actually comes out at the
printer, but if x < 80 or x > 500, it doesn't get printed; same if y < 80 or y
> 600 (these are approximate, I'm just estimating based on what I printed and where it
got cut off). This leaves about a 1 inch margin around the printed text on the paper from
the printer. Ultimately, I want to generate a document image using j2d and send that to
the printer. Any help is greatly appreciated!
Thanks in advance!
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[JAVA2D] Print BufferedImage Externally Generated
Hi, I'm trying to build up a BufferedImage using its Graphics component, and
then print that image using a Printable. The problem is that some of my
operations on the graphics component seem to be lost, and when I print the
image, a lot of it is clipped off around the borders. The code below shows the
gist of what I'm doing.
// this method is in class A
foo(String text, Font font, B b, int x, int y) {
Graphics2D g2d = (Graphics2D) image.getGraphics();
g2d.setColor(Color.black); // this color gets lost when bar is called
g2d.setFont(font); // this font gets lost when bar is called
b.bar(text, x, y);
}
// this method is in class B
bar(String text, int x, int y) {
Graphics2D g2d = (Graphics2D) image.getGraphics();
g2d.drawString(text, x, y); // this does not get lost when the image is
printed
}
// this is the print method for the Printable, the image is passed to the
Printable
print(Graphics g, PageFormat pf, int pageIndex) {
if (pageIndex == 0) {
Graphics2D g2d = (Graphics2D)image.getGraphics();
g2d.translate(pf.getImageableX(), pf.getImageableY());
((Graphics2D)graphics).drawImage(image, null, 0, 0);
return Printable.PAGE_EXISTS;
} else {
return Printable.NO_SUCH_PAGE;
}
}
If I hardcode the color and font in the bar method, then the text actually
comes out at the printer, but if x < 80 or x > 500, it doesn't get printed;
same if y < 80 or y > 600 (these are approximate, I'm just estimating based on
what I printed and where it got cut off). This leaves about a 1 inch margin
around the printed text on the paper from the printer. Ultimately, I want to
generate a document image using j2d and send that to the printer. Any help is
greatly appreciated!
Thanks in advance!
[Message sent by forum member 'wtrpirate' (wtrpirate)]
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Re: [JAVA2D] Poor performance of Java2D
I have only recently found your results from "Swing links of the week" )) I have run this benchmark on Ubuntu 8.10 and the results are rather strange: only OpenGL pipelines allowed to increase performance for both Qt and Java2D. And even Qt pure software rendering is slower then in WinXP with MinGW compiler. Probably something wrong with blitting images in drivers. [Message sent by forum member 'kamre' (kamre)] http://forums.java.net/jive/thread.jspa?messageID=318906 === To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA2D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
Re: [JAVA2D] Poor performance of Java2D
One other minor thing I've noticed: in Renderer.paint move the setting of the AA hint to after fillRect call which fills the bg. No need to have AA set when filling the background. Won't help a whole lot though. Thanks, Dmitri [EMAIL PROTECTED] wrote: Jim, thank you for anwsers. By the way I have slightly improved performance by turning off antialiasing for fill operation if it is followed by draw operation for the same path. It seems that there is no sense to antialias fill in such cases. Also some correction for computation of bounds of gradient was made in order to better correspond to Qt version. Results are here: http://trac-hg.assembla.com/jgears/wiki#Java2D [Message sent by forum member 'kamre' (kamre)] http://forums.java.net/jive/thread.jspa?messageID=318756 === To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA2D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help". === To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA2D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
Re: [JAVA2D] Poor performance of Java2D
Nice job. Worked on my Win2K box with no native acceleration. Java 6u10. Got about 14-15 fps anti-alias -- 24-25 fps not. Noticed that when Gears is iconified it continues to run at full throttle taking 100% of my CPU. [EMAIL PROTECTED] wrote: *laughing* Just did the same thing a month ago: http://linuxhippy.blogspot.com/2008/11/jgears2-rendermark.html [Message sent by forum member 'linuxhippy' (linuxhippy)] http://forums.java.net/jive/thread.jspa?messageID=318832 === To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA2D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help". === To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA2D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
Re: [JAVA2D] Poor performance of Java2D
*laughing* Just did the same thing a month ago: http://linuxhippy.blogspot.com/2008/11/jgears2-rendermark.html [Message sent by forum member 'linuxhippy' (linuxhippy)] http://forums.java.net/jive/thread.jspa?messageID=318832 === To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA2D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
