Hi Thomas, I managed to insert the white rectangle. Now some different questions :
1.Why can't the image be seen if a compress it ? My code for doing this is the following : TIFFImageEncoder enc = new TIFFImageEncoder(output.getOutputStream(), null); TIFFEncodeParam tiffParams = new TIFFEncodeParam(); tiffParams.setCompression(TIFFEncodeParam.COMPRESSION_PACKBITS); // Just an example, I have tried ALL compression groups tiffParams.setWriteTiled(false); // I have also tried to have setWriteTiled(true) , but I got the same result enc.setParam(tiffParams); enc.encode(rimg); 2.When I want to see the image, the text can't be seen. It's very fuzzy, as if it was scaled in some way. Any ideas ? And as usual, big thanks for helping me. If it would be possible, I would definitely buy you a beer for all the help you have given me :=) Regards /Gergely -----Original Message----- From: Thomas DeWeese [mailto:[EMAIL PROTECTED] Sent: Friday, December 05, 2003 6:53 PM To: Batik Users Subject: Re: How to use "org.apache.batik.ext.awt.image.codec.tiff " ? Gergely Hajdu wrote: > I misunderstood you, thinking #1 was not so easy either. But I'll > go for that suggestion.I am almost ashamed to ask, but how do you > that, and when...? Sorry, but I'm really a novice on graphics, and > all thats concerning with it. This is all DOM stuff (more or less of the top of my head so it may not compile right away). String svgns = "http://www.w3.org/2000/svg";; Element rect = document.createElementNS(svgns, "rect"); rect.setAttribute("x", "0"); rect.setAttribute("y", "0"); rect.setAttribute("width", "100%"); rect.setAttribute("height", "100%"); rect.setAttribute("fill", "white"); Element root = document.getRootElement(); root.insertBefore(rect, root.getFirstChild()); > I think it will be enough to add the rectangle on the fly, just for > the transcoding purposes. Where should this code be inserted and how > does the lines to be inserted look line in TiledImageEncoder ? Or is > it a big task to creata the rectangle ? Add it before calling the baseclass transcode method. > > And again, great thanks for helping me. > /Gergely > > -----Original Message----- > From: Thomas DeWeese [mailto:[EMAIL PROTECTED] > Sent: Thursday, December 04, 2003 7:01 PM > To: Batik Users > Subject: Re: How to use "org.apache.batik.ext.awt.image.codec.tiff " ? > > > Gergely Hajdu wrote: > > >>Honestly, my needs are absolutely not so big at all concerning the quality >>of the TIFF. Actually I just plain text I want to visualise, on >>white/transparent background with black text. So as long as the text >>can be seen, I wil be satisfied :=) >> >>Huh, isn't there any easier way to achieve this than the two suggestions >>you are giving :=) ? Otherwise, I am afraid I will mailbomb this/other >>forum for a while... > > > I gave three, add a white rectangle to the SVG (perhaps on the fly > only for transcoding purposes), use software that understands alpha > channels and write code to flatten (implement the background color > hint basically). > > I can understand that #2 may be out, #3 may be more work than you > want to do (although it might open the door for other enhancements > like going to 1bpp), but what is wrong with #1? > > > >>As I mentioned, I just need to be able to see the text. In the "worst" > > case > >>maybe other colors can be used to than black/white if it makes a solution >>easier. >> >>Regards >>/Gergely >> >>-----Original Message----- >>From: Thomas DeWeese [mailto:[EMAIL PROTECTED] >>Sent: Thursday, December 04, 2003 5:11 PM >>To: Batik Users >>Subject: Re: How to use "org.apache.batik.ext.awt.image.codec.tiff " ? >> >> >>Gergely Hajdu wrote: >> >> >> >>>Finally Thomas, I've managed to run the program :=) >>>But there are just a small bit missing....The created >>>TIFF-image can't be viewed, I just see a black background. >> >> >> Actually you are seeing opaque black text on a transparent black >>background :) You either need to insert an opaque white rectangle >>into the SVG source (before everything else). Use software that >>understands alpha channels, or write code to 'flatten the image' >>(* this is non-trivial). >> >> >> >>>tit.addTranscodingHint( ImageTranscoder.KEY_BACKGROUND_COLOR, // ADDED >> >>MYSELF >> >> >>> Color.white ); >> >> >> This would be one of the bells and whistles not supported by the >>tiled transcoder. >> >> >> >>>The TIFF is now just 14000 byte ( suspiciously small...). What does the >>>KEY_WIDTH and KEY_HEIGHT mean ? >> >> >> This is the size of the image in pixels. So you are generating >>a 100x100 pixel image with 4 channels of 8 bits (1byte) each: >> >> 100*100*4*1 = 40,000 bytes uncompressed I could easily >>believe 14,000 bytes compressed. Although 100x100 may not be close >>to big enough for your needs. >> >> >> >>>By the way, setting the background Color.white is not seen in the result. >>> >>>Again, million thanks for your help ! Now it's just the final step left. >> >>So >> >> >>>if you could help me with this, I would be REALLY happy :=) >>> >>>Regards >>>/Gergely >>> >>>-----Original Message----- >>>From: Thomas DeWeese [mailto:[EMAIL PROTECTED] >>>Sent: Thursday, December 04, 2003 3:41 PM >>>To: Batik Users >>>Subject: Re: How to use "org.apache.batik.ext.awt.image.codec.tiff " ? >>> >>> >>>Gergely Hajdu wrote: >>> >>> >>> >>> >>> >>>>You are right, I meant baseclass method. I have removed the >>>>batik.jar from FOP, but then I just got some other error. >>>> >>>>java.lang.NoClassDefFoundError: org/apache/batik/i18n/Localizable >>>> at java.lang.ClassLoader.defineClass0(Native Method) >>> >>>>[...] >>> >>> >>>>Exception in thread "main" >>>> >>>>The jar's I've included to the classpath is the follow >>>> >>>>batik-1.5.zip/batik-1.5/*.jar >>>>batik-1.5.zip/batik-1.5/lib/*.jar >>> >>> >>> Are you sure you have all of these (there are a lot of them). >>>In particular the above mentioned class is from 'lib/batik-util.jar' >>> >>> >>> >>> >>>>batik-1.5.zip/batik-1.5/extensions/*.jar >>>> >>>>When I removed the batik.jar ( FOP version ) I could find the >>> >>>"KEY_INDEXED" >>> >>> >>> >>>>field as well. >>>> >>>>I really appreciate your help ! >>> >>> >>> >>> >>> >>> >>>--------------------------------------------------------------------- >>>To unsubscribe, e-mail: [EMAIL PROTECTED] >>>For additional commands, e-mail: [EMAIL PROTECTED] >>> >>> >>> >>> >>>--------------------------------------------------------------------- >>>To unsubscribe, e-mail: [EMAIL PROTECTED] >>>For additional commands, e-mail: [EMAIL PROTECTED] >>> >> >> >> >> >> >>--------------------------------------------------------------------- >>To unsubscribe, e-mail: [EMAIL PROTECTED] >>For additional commands, e-mail: [EMAIL PROTECTED] >> >> >> >> >>--------------------------------------------------------------------- >>To unsubscribe, e-mail: [EMAIL PROTECTED] >>For additional commands, e-mail: [EMAIL PROTECTED] >> > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
