Hi Andrew,
Really thanks for taking time out and helping me with this. Thanks for the reply I will look into that. I am stuck with HeadlessException now.Am also searchin in google for any solution , In case you have time please have a look @ this.
However I have another exception now.
I have a class Test that extends
public class Test extends JApplet {
//Draws a composite image into a BufferedImage object and then writes it to the file.
}
public class Test extends JApplet {
//Draws a composite image into a BufferedImage object and then writes it to the file.
}
When i run this file outside my webapplication {Jboss server} it runs fine and it creates a temp file which has the composite image i need However when i run from my webapp i get java.awt.HeadlessException .
Now when i run it in my webapp by instantiating the class
Test render= new Test ();
render.getComposite();
There is no constructor defined in my class Test.
Any help on this is appreciated
Thanks again.
Deepak
On 6/14/06, Andrew Brygin <[EMAIL PROTECTED]> wrote:
Hi Deepak,
To be able write GIF files you must have recent beta of jdk 6.0
You can download it from http://download.java.net/jdk6/binaries/.
If using jdk 6.0 is not option for you then you might consider
using JAI plugins. For more information on JAI have a look at
https://jai-imageio.dev.java.net/.
Thanks,
Andrew
Deepak Jain wrote:
> Hi Andrew,
> Bingo it worked, But I need to save the file as jpeg instead of gif. Any
> ideas how can I save it as gif file.
> Thanks
> Deepak
>
>
> On 6/14/06, *Deepak Jain* <[EMAIL PROTECTED]
> <mailto: [EMAIL PROTECTED]>> wrote:
>
> Hi Andrew,
> Thanks for the reply , I am using jdk 1.5.0_06.
> Here are the steps I tried
> 1. First I created the BufferedImage object
> BufferedImage buffered_image =
> new BufferedImage (600, 300, BufferedImage.TYPE_INT_RGB);
> 2. Now I create a Graphics2D object fromt the buffer so that I can
> write it into this bufferedImage object.
> Graphics2D buf_image_graphics = buffered_image.createGraphics ();
> 3. Now once I have the graphics2d object I call
> drawImage() method using it and construct a composite image.
> Once done drawing, I need write the constructed composite image in
> the buffer object it to the file.
> 4.Now I create a new file using
> File f = new File ("c:\\anImage.gif");
> and write BufferedImage object into the file using
>
> try {
> ImageIO.write (buffered_image, "gif", f);
> } catch (IOException e) {
> // TODO Auto-generated catch block
> e.printStackTrace();
> }
>
> After excuting the above progrm,
> A new file c:\\anImage.gif is created but this file is empty?
> I dont know where did I go wrong.
> Any help is appreciated.
> Thanks
> Deepak
> On 6/13/06, *Andrew Brygin* <[EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]>> wrote:
>
> Hi Deepak,
>
> What version of jdk are you using?
>
> ImageIO plugin for writing GIF images is available only starting
> from jdk 6.0 b39.
> If you are using older version please try latest jdk 6.0 beta.
>
> Also note that GIF image format directly supports only images
> with color palette. You are using TYPE_INT_RGB image that does
> not have palette.
> In such case palette will be constructed automatically but such
> palette might be not ideal especially if original image has more
> than 256 colors.
>
> If GIF is not strict requirement for you I'd suggest to use PNG.
> It should work fine with your images (without any quality issues)
> and it is available since 1.4.2 .
>
> Thanks,
> Andrew
>
> Deepak Jain wrote:
> > Hi,
> > I am completely lost with Java2d. I have some how managed to
> construct a
> > composite image and i dont understand how i did it. Please
> find the code
> > below, I was working on one of ur examples.Now i need to dump this
> > composite image to a temp file so that i can display it on the
> > web-browser using the <img> tag of html. I tried BufferedImage
> but I am
> > not able to understand what BufferedImage does, read java doc but
> > failed to understand. Please let me know any solution for this.
> >
> >
> >
> > import java.awt.Dimension;
> > import java.awt.Graphics;
> > import java.awt.Graphics2D;
> > import java.awt.Image;
> > import java.awt.MediaTracker;
> > import java.awt.RenderingHints ;
> > import java.awt.Toolkit;
> > import java.awt.event.WindowAdapter ;
> > import java.awt.event.WindowEvent;
> > import java.awt.image.BufferedImage;
> > import java.io.File;
> > import java.io.IOException ;
> >
> > import javax.imageio.ImageIO;
> > import javax.swing.JApplet;
> > import javax.swing.JFrame;
> > /*
> > <applet code="ACImages" width="600" height="300"></applet>
> > */
> > public class ACimages extends JApplet {
> >
> > private String m_backGroundImgName = "emptyEnclosure.gif";
> >
> > private Image backImgObj;
> >
> > private final int []backImgDimen = {240,150};
> >
> > private String dimentionInfo[] =
> > {"server_1X_2Y","server_1X_2Y","server_1X_2Y","server_1X_2Y"
> > ,"server_1X_2Y","server_1X_2Y","server_1X_2Y","server_1X_2Y"};
>
> >
> > private Image eleImgObj[] = new Image[dimentionInfo.length];
> >
> > private final int MAX_NUM_SLOTS_XDIRECT = 8;
> >
> > public void init() {
> > Toolkit tk = getToolkit();
> > backImgObj =
> > tk.getImage(ACimages.class.getResource(m_backGroundImgName));
> > try {
> > MediaTracker tracker = new MediaTracker(this);
> > tracker.addImage (backImgObj, 0);
> > tracker.waitForID (0);
> > } catch (Exception e) {}
> >
> > for(int i = 0; i < dimentionInfo.length; i++) {
> > eleImgObj[i] =
> > tk.getImage (ACimages.class.getResource(dimentionInfo[i] +
> ".gif"));
> > try {
> > MediaTracker tracker = new MediaTracker(this);
> > tracker.addImage(eleImgObj[i], 0);
> > tracker.waitForID(0);
> > } catch (Exception e) {}
> > }
> > }
> >
> > public void drawDemo(int w, int h, Graphics2D g2) {
> >
> > int iw = 24;
> > int ih = 150;
> > float xx = 0, yy = 10;
> > g2.drawImage(backImgObj, (int) xx, (int) yy,
> backImgDimen[0],
> > backImgDimen[1], null);
> > for (int i =0; i < eleImgObj.length ; i++) {
> >
> > if(i>MAX_NUM_SLOTS_XDIRECT-1) {
> > xx = 0;
> > }
> > xx += iw;
> > g2.drawImage(eleImgObj[i], (int) xx, (int) yy, iw,
> ih, null);
> > Image status =getToolkit().getImage(
> > ACimages.class.getResource("Critical" + ".gif"));
> > try {
> > MediaTracker tracker = new MediaTracker(this);
> > tracker.addImage(status, 0);
> > tracker.waitForID(0);
> > } catch (Exception e) {}
> > g2.drawImage(status, (int) xx+6, (int) yy+6, 13,
> 13, null);
> > }
> > }
> >
> >
> > public void paint(Graphics g) {
> > Graphics2D g2 = (Graphics2D) g;
> > Dimension d = getSize();
> > g2.setBackground(getBackground());
> > g2.clearRect(0, 0, d.width, d.height);
> > g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
> > RenderingHints.VALUE_ANTIALIAS_ON);
> > g2.setRenderingHint (RenderingHints.KEY_RENDERING,
> > RenderingHints.VALUE_RENDER_QUALITY );
> > drawDemo( d.width, d.height, g2);
> >
> > }
> >
> > private void writeToFile() {
> > BufferedImage buffered_image =
> > new BufferedImage (600, 300, BufferedImage.TYPE_INT_RGB );
> > Graphics2D buf_image_graphics =
> buffered_image.createGraphics ();
> > System.out.println("buffered_image :"+buffered_image);
> > Dimension d = getSize();
> > buf_image_graphics.setBackground(getBackground());
> > buf_image_graphics.clearRect(0, 0, d.width, d.height);
> >
> buf_image_graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
> > RenderingHints.VALUE_ANTIALIAS_ON);
> > buf_image_graphics.setRenderingHint(
> RenderingHints.KEY_RENDERING,
> > RenderingHints.VALUE_RENDER_QUALITY);
> > drawDemo(d.width, d.height, buf_image_graphics);
> > File f = new File ("c:\\anImage.gif");
> > try {
> > ImageIO.write (buffered_image, "gif", f);
> > } catch (IOException e) {
> > // TODO Auto-generated catch block
> > e.printStackTrace();
> > }
> >
> > System.out.println("buffered_image :"+buffered_image);
> >
> > }
> >
> > public static void main(String argv[]) {
> > final ACimages demo = new ACimages();
> > demo.init();
> > JFrame f = new JFrame("Java 2D(TM) Demo - ACimages");
> > f.addWindowListener (new WindowAdapter() {
> > public void windowClosing(WindowEvent e)
> {System.exit (0);}
> > });
> > f.getContentPane().add("Center", demo);
> > f.pack();
> > f.setSize(new Dimension(600,300));
> > f.show();
> > demo.writeToFile ();
> > }
> > }
> >
> >
> > --
> > Bad boy for life !!!
> >
> ===========================================================================
> > To unsubscribe, send email to [EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]> and include in the
> > body of the message "signoff JAVA2D-INTEREST". For general
> help, send
> > email to [EMAIL PROTECTED] <mailto: [EMAIL PROTECTED]>
> and include in the body of the message
> > "help".
>
>
>
>
> --
> Bad boy for life !!!
>
>
>
>
> --
> Bad boy for life !!!
--
Bad boy for life !!! =========================================================================== 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".
