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Subject: RE: [xsl] value-of select - then multiply : For X3D From: "Michael Kay" <mike@xxxxxxxxxxxx> Date: Wed, 18 Jun 2008 14:04:22 +0100 |
Let's try to be more precise:
> add 5 if there is a previous record with the same value
By "record" I assume you mean a <work> element?
By "value" do you mean a <Work_Location_longitude> value? Or the combination
of longitude and latitude? Or something else?
By "previous" do you mean any previous <work> element, or must the elements
with the same value be adjacent?
Subject to these provisos, it's something like this:
<xsl:template match="work">
<Group>
<Transform>
<xsl:attribute name="translation">
<xsl:apply-templates select="Work_Location_longitude"/>
<xsl:text> </xsl:text>
<xsl:apply-templates select="Work_Location_latitude"/>
<xsl:text> </xsl:text>
<xsl:apply-templates select="Work_Year"/>
<xsl:text> </xsl:text>
</xsl:attribute>
...
</xsl:template>
<xsl:template
match="Work_Location_longitude[../preceding-sibling::work/Work_Location_long
itude[. = current()]]">
<xsl:value-of select=". - 1.4 + 5"/>
</xsl:template>
<xsl:template match="Work_Location_longitude">
<xsl:value-of select=". - 1.4"/>
</xsl:template>
etc.
Michael Kay
http://www.saxonica.com/
> -----Original Message-----
> From: j milo taylor [mailto:milo@xxxxxxxxxx]
> Sent: 18 June 2008 12:54
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: [xsl] value-of select - then multiply : For X3D
>
> Sorry for not being clear.
> I'm working on a XSLT for X3D, and this node deals with x,y,z
> co-ordinates within such a 3d world, derived from
> <Work_Location_longitude>, <Work_Location_latitude>, and
> <Work_Year> respectively - each of which are elements in the
> XML source file.
>
> Here's an edited version of the source XML:
>
> /////
>
> <?xml version="1.0" encoding="iso-8859-1" ?> <?xml-stylesheet
> type="text/xsl" href="X3D-XSLT_Work_Year.xsl"?> <works>
> <work>
> <Work_Year>1981</Work_Year>
> <Work_Name>Rainfall at Launching Place</Work_Name>
> <Work_Location>Australia</Work_Location>
> <Work_Location_longitude>133</Work_Location_longitude>
> <Work_Location_latitude>-27</Work_Location_latitude>
> </work>
> <work>
> <Work_Year>1981</Work_Year>
> <Work_Name>A Walk Through the City</Work_Name>
> <Work_Location>Canada</Work_Location>
> <Work_Location_longitude>-95</Work_Location_longitude>
> <Work_Location_latitude>60</Work_Location_latitude>
> </work>
> <work>
> <Work_Year>1981</Work_Year>
> <Work_Name>Five Silent Studies</Work_Name>
> <Work_Location>Canada</Work_Location>
> <Work_Location_longitude>-95</Work_Location_longitude>
> <Work_Location_latitude>60</Work_Location_latitude>
> </work>
>
> etc
> etc
>
> <works>
> /////
>
> I want to get the <Work_Location_longitude> values for each
> record, -1.4 from this, and if there are previous records,
> offset each of the subsequent results by 5. This will
> determine the x value of the node position.
>
> Similarly,
>
> I want to get the <Work_Location_latitude> values for each
> record, -2.2 from this, and if there are previous records,
> offset each of the subsequent results by 5. This will
> determine the y value of the node position.
>
> Here's the XSLT (shortened version)
>
> /////
>
> <?xml version="1.0" encoding="UTF-8"?>
>
> <xsl:stylesheet version="1.0"
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
> <xsl:output media-type="model/x3d=xml"
> doctype-system="http://www.web3d.org/specifications/x3d-3.2.dtd";
> method="xml" encoding="UTF-8" indent="yes"
> omit-xml-declaration="yes"/>
>
> <xsl:template match="/">
>
> <X3D profile="Immersive">
>
> <head> <title/></head>
> <Scene>
> <xsl:apply-templates/>
> </Scene>
> </X3D>
>
> </xsl:template>
> <xsl:template match="works">
>
> <Group>
> <xsl:for-each select="work">
> <Group>
>
> <Transform translation='0 0 0'> /<!-- i.e the
> x,y,z co-ords for the node>/
>
> <xsl:attribute name="translation">
> <xsl:value-of select="Work_Location_longitude"/>/ <!-- get
> this value-of select, -1.4, and add 5 if there is a previous
> record with the same value value-of select
> "Work_Location_longitude">/ <xsl:value-of
> select="Work_Location_latitude"/>/<!-- get this value-of
> select, -2.2, and add 5 if there is a previous record with
> the same value-of select "Work_Location_latitude">/
> <xsl:value-of select="Work_Year div 10"/></xsl:attribute>
>
> <Shape>
> <Appearance>
> <Material />
> </Appearance>
> <xsl:element name="Text"><xsl:attribute name="string">
> <xsl:value-of select="Work_Year"/> </xsl:attribute> </xsl:element>
> </Shape>
> </Transform>
> </Group>
> </xsl:for-each>
> </Group>
>
> etc
> etc
> etc
>
> </xsl:template>
>
> </xsl:stylesheet>
>
> /////
>
> And the output i want would be something like this:
>
> /////
>
> <!DOCTYPE X3D SYSTEM
> "http://www.web3d.org/specifications/x3d-3.2.dtd";>
> <X3D profile="Immersive">
> <head>
> <title/>
> </head>
> <Scene>
> <Group>
>
> <Group>
> <Transform translation="*131.6 -29.2 198.1*"> /<!-- i.e
> longitude -1.4, latitude -2.2, year / 10>/ <Shape>
> <Appearance> <Material/> </Appearance> <Text
> string=""Rainfall at Launching Place""></Text>
> <!-- Text string="Australia"></Text> --> </Shape>
> </Transform> </Group>
>
> <Group>
> <Transform translation="*-93.6 57.8 198.1*"> /<!-- i.e
> longitude -1.4, latitude -2.2, year / 10>/ <Shape>
> <Appearance> <Material/> </Appearance> <Text string="A Walk
> Through the City"></Text>
> <!-- <Text string="Canada"></Text> -->
> </Shape>
> </Transform>
> </Group>
>
> <Group>
> <Transform translation="*-88.6 62.8 198.1*"> /<!-- i.e longitude -1.4
> +5, latitude -2.2 +5, year / 10>/
> <Shape>
> <Appearance>
> <Material/>
> </Appearance>
> <Text string="Five Silent Studies"></Text>
> <!-- <Text string="Canada"></Text> -->
> </Shape>
> </Transform>
> </Group>
>
> etc
> etc
>
> </Group>
> </Scene>
> </X3D>
>
> ////
>
> Can anyone shed any light on this?
>
> Best Regards
> Milo
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