RE: [xsl] adding variables

["Michael Kay" <michael.h.kay@xxxxxxxxxxxx>]

> I want to have an offset stored so that I can move
> around all off my components based on this offset. I
> have created a variable:
>
> <xsl:variable name="y_offset">
>   <xsl:value-of select="20"/>
> </xsl:variable>

Much better to write <xsl:variable name="y_offset" select="20"/>. That way
your variable is a number, not a result tree fragment that can be converted
to a number when required.
>
> and want to add to the offset. Something to the effect
> of:
>
> <path d="M 35, {$y_offset} + 25 ....

Close. <path d="M 35, {$y_offset + 25} ..."> should do the trick. The stuff
inside the {} is an XPath expression, the stuff outside is just text.

Mike Kay


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