Re: How to write equations for FOP ?

John Burgess 13 Sep 2004 16:49:33 -0000

Vasek

below is a message I sent a couple of hours ago which was refused because of the jar. This time I've just attached the source file - it will need to go in a com\riskdecisions\utils folder.

John

Vasek

I attach the jar which you need to put on your class path or otherwise =
make available to your xslt engine.
Then what follows is some simplified extracts from my xslt.


<xsl:stylesheet version=3D"1.0"
xmlns:xsl=3D"http://www.w3.org/1999/XSL/Transform"
xmlns:fo=3D"http://www.w3.org/1999/XSL/Format"
=
xmlns:imgsize=3D"http://xml.apache.org/xslt/Java/com.riskdecisions.utils.=
imagesize.imageSize"
>


<xsl:variable name=3D"dpi" select=3D"150" />


   <xsl:template match=3D"image" >
<xsl:variable name=3D"ifile" >
   <xsl:text>src/images/</xsl:text> <xsl:value-of =
select=3D"@source"/><xsl:text>.jpg</xsl:text>
</xsl:variable>

<fo:block space-before=3D"10pt" space-after=3D"10pt" =
text-align=3D"center" >
     <fo:external-graphic scaling-method=3D"integer-pixels" =
src="">      <xsl:attribute name=3D"width">
       <xsl:variable name=3D"imgt" select=3D'imgsize:new($ifile)'/> =

       <xsl:variable name=3D"img_width" select=3D'imgsize:getWidth( =
$imgt )'/> 
       <xsl:value-of select=3D'$img_width div $dpi'/>in   
   </xsl:attribute>
   </fo:external-graphic>
</xsl:template>

----- Original Message -----

From: Vaclav PEROUTKA

To: [EMAIL PROTECTED]

Sent: Monday, September 13, 2004 3:24 PM

Subject: Re: How to write equations for FOP ?

John,

it would be nice to have it. Then I could use width and height in percent to recompute the scale don't I ?

Anyway I am not sure if I am able to integrate it into FOP because I started with XML and XSLT week ago what my colleagues did not finish...

Thanks,
Vasek

John Burgess wrote:

Vasek

By default fop assumes bitmaps are 72dpi so it will spread a 144x144 pixel
bitmap across 2 inches in width and height.
However, if you tell it the size you want
ie width="1cm" height="1cm"
then it will produce the bitmap at that size.

If your bitmaps are all of different sizes then I have written a java class
for use as an xslt extension that reads the bitmap and reports back the
width and height in pixels.  I can submit the source code and the jar if
there's interest - I've only tested it with jpegs but it should work with
any bitmap type supported by the javax.imageio package.  I believe there is
a plug in that will do GIFs though it's not part of the standard
distribution because of the lzw patent problem.

John



----- Original Message -----
From: "Vaclav PEROUTKA" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, September 13, 2004 2:17 PM
Subject: Re: How to write equations for FOP ?

Hi Pascal,

thanks for an answer but I am not sure if it solves my problem. It still
generates GIF images with resolution of 72dpi. And for this resolution I
see pixels - formulas are very rough. For SVG it looks it is only the
bitmap wrapper, isn't it ?

Vasek

Pascal Sancho wrote:

I have found elsewhere that J.Pietschmann then Jeremias Maerki wrote

respectively following info about MATHML:

There is a FOP MathML extension using JEuclid in the CVS repository.
You can check it out (from the maintenance branch), build FOP and create

a servicec entry for the MathML element mapping (there should be a sample),
it should work then.

The MathML extension is in CVS HEAD under examples/mathml, not in the

maintenance branch. And it will probably take a bit to adjust it for FOP
0.20.5.

http://cvs.apache.org/viewcvs.cgi/xml-fop/examples/mathml/

Pascal

-----Message d'origine-----
De : Pascal Sancho
Envoyé : lundi 13 septembre 2004 14:47
À : [EMAIL PROTECTED]
Objet : RE: How to write equations for FOP ?

Hi,
I think that a good way is to generate svg code embedded in a
fo:instream-foreign-object.
You can visit
http://xml.apache.org/fop/graphics.html#svg-pdf-graphics.
Pascal

-----Message d'origine-----
De : Vaclav PEROUTKA [mailto:[EMAIL PROTECTED]] Envoyé

: lundi 13

septembre 2004 14:24 À : [EMAIL PROTECTED] Objet :

How to write

equations for FOP ?

Hello list,

I would like to know how can I use FOP with math equations

correctly.

I currently process equations in LaTeX and insert images

but FOP has

72dpi resolution. For PDF documents it is useless. How can I set at
least 300dpi resolution or is there any better approach to generate
equations in XML ?

Thanks,
Vasek

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