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From Jeremias Maerki <...@jeremias-maerki.ch>
Subject Re: Images not resized properly in fop 0.94
Date Sun, 18 Nov 2007 17:19:09 GMT
Done: http://svn.apache.org/viewvc?rev=596100&view=rev

Thanks for the suggestion.

Jeremias Maerki



On 12.11.2007 17:22:06 Puppala, Kumar (LNG-CON) wrote:
> Thanks Jeremias for pointing me to the examples. From the examples, I
> could not find one that suits my testcase. However, I was able to find
> one from another website: 
>   http://www.renderx.net/lists/xep-support/0376.html
> 
> I tried this approach for my image and it worked. The trick is to
> specify the markup as shown below:
> 
>  <fo:external-graphic src="url(img/large-image.gif)" 
>     content-width="scale-to-fit" 
>     content-height="100%" 
>     width="100%"/>
> 
> Since we do not have this particular testcase in the images.fo file, can
> you please add this? It might be helpful for those who wish to scale
> only those images that do not fit in the page.
> 
> Appreciate your help.
> 
> Thanks!!
> 
> -----Original Message-----
> From: Jeremias Maerki [mailto:dev@jeremias-maerki.ch] 
> Sent: Friday, November 09, 2007 5:00 PM
> To: fop-users@xmlgraphics.apache.org
> Subject: Re: Images not resized properly in fop 0.94
> 
> May I suggest that you have a look at "examples/fo/basic/images.fo" in
> the FOP distribution? The example shows various ways to use
> fo:external-graphic. I'm sure you'll find the pattern you need there.
> 
> Good luck!
> 
> Jeremias Maerki
> 
> 
> 
> On 09.11.2007 22:50:23 Puppala, Kumar (LNG-CON) wrote:
> > Thanks for the information. I tried to use both content-height and
> > content-width (setting them to 'scale-to-fit') in my testcase and it
> > still did not work. I think there might be some issue here. Below is
> the
> > code snippet from AbstractGraphicsLayoutManager.java file:
> > 
> >  
> > 
> > In getInlineArea() function:
> > 
> >  
> > 
> > Line 72 onwards...
> > 
> >         int bpd = -1;
> > 
> >         int ipd = -1;
> > 
> >  
> > 
> > The bpd and ipd values are only overwritten if 
> > 
> > Line 129 onwards...
> > 
> >         if ((scaling == EN_UNIFORM) || (cwidth == -1) || cheight ==
> -1)
> > {
> > 
> >             if (cwidth == -1 && cheight == -1) {
> > 
> >                 cwidth = fobj.getIntrinsicWidth();
> > 
> >                 cheight = fobj.getIntrinsicHeight();
> > 
> >             }
> > 
> >  ....
> > 
> > Line 164 onwards...
> > 
> >         if (ipd == -1) {
> > 
> >             ipd = cwidth;
> > 
> >         }
> > 
> >         if (bpd == -1) {
> > 
> >             bpd = cheight;
> > 
> >         }
> > 
> >  
> > 
> > The ipd and bpd values are set as per this flow for my FO file. As
> such,
> > the values are not being scaled. We might be missing something here
> but
> > since I am not an expert in this area, any input to fix this issue
> will
> > be greatly appreciated.
> > 
> >  
> > 
> >  
> > 
> > Thanks,
> > 
> > Kumar Puppala
> > 
> >  
> > 
> > -----Original Message-----
> > From: Andreas L Delmelle [mailto:a_l.delmelle@pandora.be] 
> > Sent: Friday, November 09, 2007 2:21 PM
> > To: fop-users@xmlgraphics.apache.org
> > Subject: Re: Images not resized properly in fop 0.94
> > 
> >  
> > 
> > On Nov 9, 2007, at 20:08, Puppala, Kumar (LNG-CON) wrote:
> > 
> >  
> > 
> > Hi Kumar
> > 
> > > I am running into an issue with both gif and png images in fop  
> > 
> > > 0.94. I am trying to render a big GIF image in my PDF document.  
> > 
> > > Since the image does not fit in a single page, it should be  
> > 
> > > resized. In FOP 0.20.5, I do see the correct behavior and the image
> 
> > 
> > > is rendered properly. However in both 0.93 and 0.94 releases, the  
> > 
> > > image is not truncated and hence only rendered partially. I am  
> > 
> > > hereby attaching the FO file and the outputs from old and new fop.  
> > 
> > > Are there any known issues here?
> > 
> >  
> > 
> > Yes, the behavior in FOP 0.20.5 is non-compliant.
> > 
> >  
> > 
> > Take a look at the fo:external-graphic, and the XSL-FO Rec, more  
> > 
> > precisely:
> > 
> >  
> > 
> > http://www.w3.org/TR/xsl11/#d0e22982 (Area Dimension Properties)
> > 
> >  
> > 
> > You have no explicit (content-)width/height, so:
> > 
> >  
> > 
> > content-width="auto" => intrinsic image width
> > 
> > content-height="auto" => intrinsic image height
> > 
> > height="auto"
> > 
> > width="auto"
> > 
> >  
> > 
> > => the image should not be scaled to fit the viewport, but clipped.
> > 
> >  
> > 
> > The trick is to set content-height and/or content-width explicitly to
> 
> > 
> > "scale-to-fit". That should normally do it.
> > 
> >  
> > 
> > Hope this helps!
> > 
> >  
> > 
> >  
> > 
> > Andreas
> 
> 
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