AppletTalk.com Java discussions newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  2DGraphics vs JPEG          AppletTalk.com Forum Index -> Java GUI Toolkits View previous topic :: View next topic   Author Message Mario Guest Posted: Wed Sep 21, 2005 12:03 pm    Post subject: 2DGraphics vs JPEG Maybe I'm someone boring with my questions about way of displaying and printing content of JPanel, but you must understand that all little tests of my application don't give the speed I need and, the other thing is, that examples on Net shows how to display and print pictures (jpg for example) or 2DGraphics. So, what is, memory and speed of displaying and printing, better: 1. g2d.drawRectangle(...); g2d.drawLine(...); g2d.draw... and so on, width: 210 mm x 6 height: 297 mm x 6 or 2. draw all that, saving as a jpg picture with the JAVA ADVANCED IMAGES packages and than displaying and printing as a picture. The content of a JPanel is a diagram which need to be continued (printing) on a next pages, through the x-axis and the y-axis. Back to top Oliver Wong Guest Posted: Wed Sep 21, 2005 1:39 pm    Post subject: Re: 2DGraphics vs JPEG "Mario" <mario_zupan (AT) inet (DOT) hr> wrote Quote: Maybe I'm someone boring with my questions about way of displaying and printing content of JPanel, but you must understand that all little tests of my application don't give the speed I need and, the other thing is, that examples on Net shows how to display and print pictures (jpg for example) or 2DGraphics. So, what is, memory and speed of displaying and printing, better: 1. g2d.drawRectangle(...); g2d.drawLine(...); g2d.draw... and so on, width: 210 mm x 6 height: 297 mm x 6 or 2. draw all that, saving as a jpg picture with the JAVA ADVANCED IMAGES packages and than displaying and printing as a picture. The content of a JPanel is a diagram which need to be continued (printing) on a next pages, through the x-axis and the y-axis. You say you're doing tests, so why not test this as well and give us your results? - Oliver Back to top Roedy Green Guest Posted: Wed Sep 21, 2005 4:39 pm    Post subject: Re: 2DGraphics vs JPEG On Wed, 21 Sep 2005 14:03:20 +0200, Mario <mario_zupan (AT) inet (DOT) hr> wrote or quoted : Quote: 2. draw all that, saving as a jpg picture with the JAVA ADVANCED IMAGES packages and than displaying and printing as a picture. JPGs are for photographs. If you used that technique, you would use PNG format. It depends on how complex the drawing is and how much computation is required to draw it which approach will be faster. You have to take into account transmission time as well. You can do a quick check which will be faster by simply displaying a dummy image and comparing the speed of that with what you are doing now. -- Canadian Mind Products, Roedy Green. http://mindprod.com Again taking new Java programming contracts. Back to top Mario Guest Posted: Thu Sep 22, 2005 8:08 am    Post subject: Re: 2DGraphics vs JPEG Roedy Green wrote: Quote: On Wed, 21 Sep 2005 14:03:20 +0200, Mario <mario_zupan (AT) inet (DOT) hr> wrote or quoted : 2. draw all that, saving as a jpg picture with the JAVA ADVANCED IMAGES packages and than displaying and printing as a picture. JPGs are for photographs. If you used that technique, you would use PNG format. It depends on how complex the drawing is and how much computation is required to draw it which approach will be faster. You have to take into account transmission time as well. You can do a quick check which will be faster by simply displaying a dummy image and comparing the speed of that with what you are doing now. OK. I will try with png. If you don't mind, I would like to send you a JPanel content, just to see it. I tried once before on a [email]look-on (AT) mindprod (DOT) com.inva[/email]lid but without success. So, could you please send me a correct mail address. If you don't mind, of course. Back to top Roedy Green Guest Posted: Thu Sep 22, 2005 8:28 am    Post subject: Re: 2DGraphics vs JPEG On Thu, 22 Sep 2005 10:08:08 +0200, Mario <mario_zupan (AT) inet (DOT) hr> wrote or quoted : Quote: OK. I will try with png. If you don't mind, I would like to send you a JPanel content, just to see it. I tried once before on a [email]look-on (AT) mindprod (DOT) com.inva[/email]lid but without success. So, could you please send me a correct mail address. If you don't mind, of course. That is a munged address containing the instructions of how to find my email address which I don't want publicly posted. It is saying look on http://mindprod.com the .invalid is warning you that is not it itself a legit email address. http://mindprod.com/feedback/feedback.html -- Canadian Mind Products, Roedy Green. http://mindprod.com Again taking new Java programming contracts. Back to top Mario Guest Posted: Thu Sep 22, 2005 8:51 am    Post subject: Re: 2DGraphics vs JPEG I did. When I cath the time I must investigate your interesting site. 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