Re: [xsl] Fwd: fail to alter rendering effects with different pages by appling position() mod 2 = 1

["G. Ken Holman" <gkholman@xxxxxxxxxxxxxxxxxxxx>]

Before your questions can be answered, there are some clarifications needed.

At 2011-09-12 00:22 +0800, team wise wrote:
> My problem being,  the XSL FO cannot be applied differently to
> different pages, for example, on the last page,  the
> axf:background-color attribute and its value should have been applied
> in the resulting PDF.

Of course XSL-FO can be set up such that different properties are 
applied to different pages in a page sequence, including the last page.

> Previoulsy, the following line of code works just fine:

This code that you quote is doing the test in the XSLT, it is not 
setting up the last-page contingencies in the XSL-FO:

> ///////////////////
>   <xsl:if test="$outputformat = 'UG_Booklet_Print'">
>         <xsl:choose>
>           <xsl:when test="position() = last()">
>             <xsl:attribute name="axf:background-color"><xsl:value-of
> select="$background_colour"/></xsl:attribute>
>             <xsl:attribute
> name="color">rgb-icc(#CMYK,0%,0%,0%,0%)</xsl:attribute>
>           </xsl:when>
>           <xsl:when test="position() mod 2 = 1">
>             <xsl:attribute
> name="axf:background-color">rgb-icc(#CMYK,0%,0%,0%,10%)</xsl:attribute>
>             <xsl:attribute
> name="color">rgb-icc(#CMYK,0%,0%,0%,80%)</xsl:attribute>
>           </xsl:when>
>           <xsl:otherwise>
>             <xsl:attribute
> name="color">rgb-icc(#CMYK,0%,0%,0%,80%)</xsl:attribute>
>           </xsl:otherwise>
>         </xsl:choose>
>       </xsl:if>
> //////////////////////////////

So, you are mixing questions of XSLT and questions of XSL-FO.  The 
above code implies that you are forcing (or assuming) one page per 
page sequence, such that you can control the properties of the page 
sequence at the time you create the page sequence.

Typically in XSL-FO one sets up a page-sequence-master with different 
simple-page-master declarations of the use of background colours for 
the regions.  The odd/even is tested using conditional page master 
alternatives.

You have nothing of that in this post, so I can only assume that you 
have chosen to do such testing in your XSLT and force one page per 
page sequence.  You are doing a lot of work that the formatter can do for you.

And for readers of the archive, they may be misled that such problems 
might be solved in XSLT when, in fact, they are better solved by 
letting the formatter deal with them.

>  after the modifications I made to XSLs today, the resulting PDF
> indicates that either position() = last()" or position() mod 2 = 1 can
> work as expected, but not all work simultaneously, subject to proper
> conditions. Specifically,

Specifically, what?  You don't indicate what your modifications are.

> My question , how can I make XSL FO treat different pages differently
> as it used to be?

How can anyone answer your question if you don't indicate what the 
new code is in order to compare it to the old code?

> I greatly appreciate if there is any hint.

I suggest you clarify your question and you justify your use of XSLT 
for such tests rather than setting up the XSL-FO formatter to handle 
page parity (odd/even) and page position (first/last/rest).

I hope this helps.

. . . . . . . . . . . Ken

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