Hi,
This test neither works. I have no more idea on what parameters I can change
to have better result
the test.fo
...
<fo:external-graphic width="22.8cm" height="19cm"
content-height="scale-to-fit" content-width="scale-to-fit"
src="url('/home/lqzp4386/project/OdisSite/src/site/resources/images/archi.png')"/>
...
the command
~/appli/fop/fop-0.95/fop -fo test.fo -pdf test.pdf
Andreas Delmelle-2 wrote:
>
> On 03 Dec 2008, at 12:28, sandraB wrote:
>
> Hi
>
>> I'm using fop-0.95 to generate a PDF file from an xml template, I
>> have a
>> problem regarding the external-graphic renderer. I never had the
>> correct
>> size in the pdf for gif or png images even if I can modifiy the size
>> by
>> changing the external-graphic attributes. Could you help me to
>> resolve this
>> issue.
>
> To get the most accurate results:
>
>>
>> The xml
>> <!-- The same image (size gived by Gimp) -->
>> img src="images/topic.png" content-width="136mm" content-
>> height="88mm" />
>> img src="images/topic.gif" content-width="13mm" content-
>> height="8mm" />
>> img src="images/topic.gif" content-width="13.652cm" content-
>> height="8.855cm"
>
> Sizes in mm/cm as displayed by image viewers are not always
> dependable. If there is no native resolution present in the image
> file, most viewers default to 96dpi or 120dpi for on-screen display.
> FOP, when using the PDF output target, would on the other hand assume
> a resolution of 72dpi, which would make the same image appear larger
> than an image viewer shows it to be.
>
> What you should look for is the size in pixels /and/ the proper
> resolution (if any).
>
> Once you have those, the calculations become rather straightforward.
> For example:
> default content-width = (intrinsic width in pixels) * (native
> resolution / 72)
>
> If you want to avoid doing any calculations altogether, then use
> height/width to specify the desired size, and 'scale-to-fit' for
> content-width/content-height. No matter what the intrinsic size is,
> FOP will then do its best to scale the image to fit the specified
> height/width.
>
> Example:
>
> <fo:external-graphic
> height="2cm" width="2cm"
> content-height="scale-to-fit" content-width="scale-to-fit"
> src="..." />
>
> The resulting image will never take up more/less space than 2x2cm.
> Starting with FOP 0.95, support was added for 'scale-down-to-fit' if
> you want to keep small images in their intrinsic size.
>
>
> HTH!
>
> Andreas
>
>
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