Sorry, I omitted to say this is with FOP 0.95 on Fedora Linux. Cheers T
-----Original Message----- From: Trevor Nicholls [mailto:tre...@castingthevoid.com] Sent: Tuesday, 31 August 2010 7:05 a.m. To: fop-users@xmlgraphics.apache.org Subject: edge effects with consecutive colored blocks Hi Where my input XML contains "fragment" elements I am generating fo:blocks with a grey background and black border. Consecutive fragments are coalesced into what looks like a single block with one outer border (but they need to be separate fo:blocks so that page breaks occur at a block boundary). This is working, but I am getting some edge effects. These are apparent as faint ghostly lines where the block boundaries occur - these must be due to some sort of rounding/floating arithmetic as they do not appear consistently at every boundary nor do they appear consistently on all screens/resolutions. I presume I am not the first person to see this kind of artefact, but Google hasn't helped me find a solution. Can anyone here help me? Do I need to overlay the blocks somehow (and how does one do that anyway)? Thanks for any hints Trevor === The relevant xsl-fo templates are these: <xsl:attribute-set name="fragment.base.set"> <xsl:attribute name="font-family">Courier, monospace</xsl:attribute> <xsl:attribute name="white-space-treatment">preserve</xsl:attribute> <xsl:attribute name="white-space-collapse">false</xsl:attribute> <xsl:attribute name="keep-together.within-page">always</xsl:attribute> <xsl:attribute name="font-size">9pt</xsl:attribute> <xsl:attribute name="background-color">#e0e0e0</xsl:attribute> <xsl:attribute name="padding-before">3pt</xsl:attribute> <xsl:attribute name="padding-after">3pt</xsl:attribute> <xsl:attribute name="padding-start">6pt</xsl:attribute> <xsl:attribute name="padding-end">6pt</xsl:attribute> <xsl:attribute name="margin">0</xsl:attribute> <xsl:attribute name="border-style">solid</xsl:attribute> <xsl:attribute name="border-width">0.25mm</xsl:attribute> </xsl:attribute-set> <xsl:attribute-set name="fragment.set" use-attribute-sets="fragment.base.set"> <xsl:attribute name="border-color">black</xsl:attribute> <xsl:attribute name="space-before.minimum">0.4em</xsl:attribute> <xsl:attribute name="space-before.optimum">0.5em</xsl:attribute> <xsl:attribute name="space-before.maximum">0.6em</xsl:attribute> <xsl:attribute name="space-after.minimum">0.4em</xsl:attribute> <xsl:attribute name="space-after.optimum">0.5em</xsl:attribute> <xsl:attribute name="space-after.maximum">0.6em</xsl:attribute> </xsl:attribute-set> <xsl:attribute-set name="fragment.top.set" use-attribute-sets="fragment.base.set"> <xsl:attribute name="border-top-color">black</xsl:attribute> <xsl:attribute name="border-left-color">black</xsl:attribute> <xsl:attribute name="border-right-color">black</xsl:attribute> <xsl:attribute name="border-bottom-color">#e0e0e0</xsl:attribute> <xsl:attribute name="space-before.minimum">0.4em</xsl:attribute> <xsl:attribute name="space-before.optimum">0.5em</xsl:attribute> <xsl:attribute name="space-before.maximum">0.6em</xsl:attribute> <xsl:attribute name="space-after">0em</xsl:attribute> </xsl:attribute-set> <xsl:attribute-set name="fragment.middle.set" use-attribute-sets="fragment.base.set"> <xsl:attribute name="border-top-color">#e0e0e0</xsl:attribute> <xsl:attribute name="border-left-color">black</xsl:attribute> <xsl:attribute name="border-right-color">black</xsl:attribute> <xsl:attribute name="border-bottom-color">#e0e0e0</xsl:attribute> <xsl:attribute name="space-before">0em</xsl:attribute> <xsl:attribute name="space-after">0em</xsl:attribute> </xsl:attribute-set> <xsl:attribute-set name="fragment.bottom.set" use-attribute-sets="fragment.base.set"> <xsl:attribute name="border-top-color">#e0e0e0</xsl:attribute> <xsl:attribute name="border-left-color">black</xsl:attribute> <xsl:attribute name="border-right-color">black</xsl:attribute> <xsl:attribute name="border-bottom-color">black</xsl:attribute> <xsl:attribute name="space-before">0em</xsl:attribute> <xsl:attribute name="space-after.minimum">0.4em</xsl:attribute> <xsl:attribute name="space-after.optimum">0.5em</xsl:attribute> <xsl:attribute name="space-after.maximum">0.6em</xsl:attribute> </xsl:attribute-set> <xsl:template match="fragment[not(preceding-sibling::*[1][self::fragment])]"> <xsl:apply-templates select="." mode="inlist" /> </xsl:template> <xsl:template match="fragment" mode="inlist"> <xsl:choose> <xsl:when test="not(preceding-sibling::*[1][self::fragment])"> <xsl:choose> <xsl:when test="not(following-sibling::*[1][self::fragment])"> <!-- sole fragment --> <fo:block xsl:use-attribute-sets="fragment.set" > <xsl:apply-templates /> </fo:block> </xsl:when> <xsl:otherwise> <!-- first fragment --> <fo:block xsl:use-attribute-sets="fragment.top.set" > <xsl:apply-templates /> </fo:block> </xsl:otherwise> </xsl:choose> </xsl:when> <xsl:otherwise> <xsl:choose> <xsl:when test="not(following-sibling::*[1][self::fragment])"> <!-- last fragment --> <fo:block xsl:use-attribute-sets="fragment.bottom.set" > <xsl:apply-templates /> </fo:block> </xsl:when> <xsl:otherwise> <!-- middle fragment --> <fo:block xsl:use-attribute-sets="fragment.middle.set" > <xsl:apply-templates /> </fo:block> </xsl:otherwise> </xsl:choose> </xsl:otherwise> </xsl:choose> <xsl:apply-templates select="following-sibling::*[1][self::fragment]" mode="inlist" /> </xsl:template> --------------------------------------------------------------------- To unsubscribe, e-mail: fop-users-unsubscr...@xmlgraphics.apache.org For additional commands, e-mail: fop-users-h...@xmlgraphics.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: fop-users-unsubscr...@xmlgraphics.apache.org For additional commands, e-mail: fop-users-h...@xmlgraphics.apache.org
