RE: printing three display components

• To: "'Ugo Taddei'" <p6taug@xxxxxxxxxxx>, "'Rakesh Rathod'" <rock_java@xxxxxxxxx>
• Subject: RE: printing three display components
• From: "Tan Ka Ju" <kaju@xxxxxxxxxxxxx>
• Date: Fri, 25 Jul 2003 16:20:42 +0800

Hello.

Is their in Java any method to know is a line contains or inside an
arbitrary polygon or shape? Or is the any algorithm or mathematics
formula that can solve this problem?

Thanks.
KJ

-----Original Message-----
From: owner-visad-list@xxxxxxxxxxxxx
[mailto:owner-visad-list@xxxxxxxxxxxxx] On Behalf Of Ugo Taddei
Sent: Friday, July 25, 2003 3:47 PM
To: Rakesh Rathod
Subject: Re: printing three display components

Hello,

Curtis Rueden wrote:
> Hi Rakesh,
> 
> I don't know that much about printing in Java, but looking at
> the DisplayImpl.getPrintable() method, it appears you could
> construct a Printable object in whose print() method you create
> a BufferedImage consisting of a synthesis of the three displays
> (in whatever orientation you desire).  Use DisplayImpl.getImage()
> to grab a BufferedImage with the contents of a VisAD Display.
> See DisplayImpl.getPrintable() for an example of using the
> Printable interface to send BufferedImages to the printer.
> 
> There could be an easier way, but that's really more of a Java
> programming question, rather than a VisAD question.

Definitely a Java programming question. Nevertheless, I found code 
snippet lying around on my disk. Feel free to try it (I don't even now 
if it works; it might have worked, some time ago ;-) then let us know 
when you improved it.

NB: Follow Curtis' suggestions, and you'll also need to change

   final JPanel gp = this.getCentralPanel();

to match the panel where all your displays live.


   public Printable getPrintable()
   {
     Printable printer=null;
     final JPanel gp = this.getCentralPanel();

     if (printer == null)
       printer
         new Printable() {
           public int print(Graphics g, PageFormat pf, int pi)
              throws PrinterException
           {
             if (pi >= 1)
             {
                return Printable.NO_SUCH_PAGE;
             }

             pf.setOrientation(PageFormat.LANDSCAPE);
                                         // or: LANDSCAPE

             //JPanel gp =  getcentralPanel();
              Image image = (Image) gp.createImage(gp.getWidth () 
,gp.getHeight());
              Graphics gg = image.getGraphics();
              gp.paint(gg);
              BufferedImage bufImage = (BufferedImage)image;

             //BufferedImage image = DisplayImpl.this.getImage();
             g.drawImage(
                 bufImage,
                 (int) pf.getImageableX(),
                 (int) pf.getImageableY(),
                 gp);
             return Printable.PAGE_EXISTS;
           }
         };
     return printer;
   }


Cheers,

Ugo

• Follow-Ups:
  • AW: printing three display components
    • From: Mathias Stümpert
  • topology question
    • From: Ugo Taddei
  • RE: printing three display components
    • From: Bill Hibbard

• References:
  • Re: printing three display components
    • From: Ugo Taddei