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Optimize UDDF export
Writing the samples/waypoints to UDDF export in a totally new way. Previously the preparations for approximating waypoints was done for every sample, now only for the events. A few days ago it took 36 seconds for my test set of 8 dives to export to UDDF. This optimization round took it down from 0m4.745s to 0m0.253s. Fixes #508 Signed-off-by: Miika Turkia <miika.turkia@gmail.com> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Miika Turkia
Dirk Hohndel
parent
3e17690525
commit
088017f67c
1 changed files with 165 additions and 150 deletions
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@ -186,34 +186,44 @@
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</informationbeforedive>
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<samples>
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<xsl:for-each select="./divecomputer[1]/sample">
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<!-- Position of previous waypoint -->
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<xsl:for-each select="divecomputer[1]/event | divecomputer[1]/sample">
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<xsl:sort select="substring-before(@time, ':') * 60 + substring-before(substring-after(@time, ':'), ' ')" data-type="number" order="ascending"/>
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<xsl:variable name="events">
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<xsl:value-of select="count(preceding-sibling::event)"/>
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</xsl:variable>
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<xsl:choose>
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<xsl:when test="name() = 'event'">
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<xsl:variable name="position">
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<xsl:value-of select="position() - 1"/>
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<xsl:value-of select="position()"/>
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</xsl:variable>
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<!-- Times of surrounding waypoints -->
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<xsl:variable name="timefirst">
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<xsl:choose>
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<xsl:when test="../sample[position() = $position - 1 - $events]/@time != ''">
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<xsl:call-template name="time2sec">
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<xsl:with-param name="time">
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<xsl:value-of select="../sample[position() = $position]/@time"/>
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<xsl:value-of select="../sample[position() = $position - 1 - $events]/@time"/>
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</xsl:with-param>
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</xsl:call-template>
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</xsl:when>
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<xsl:otherwise>
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<xsl:value-of select="0"/>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:variable>
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<xsl:variable name="timesecond">
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<xsl:choose>
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<xsl:when test="../sample[position() = $position - $events]/@time != ''">
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<xsl:call-template name="time2sec">
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<xsl:with-param name="time">
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<xsl:value-of select="./@time"/>
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<xsl:value-of select="../sample[position() = $position - $events]/@time"/>
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</xsl:with-param>
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</xsl:call-template>
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</xsl:variable>
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<!-- Time difference between surrounding waypoints -->
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<xsl:variable name="delta">
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<xsl:choose>
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<xsl:when test="$timefirst >= 0">
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<xsl:value-of select="$timesecond - $timefirst"/>
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</xsl:when>
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<xsl:otherwise>
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<xsl:value-of select="0"/>
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@ -223,31 +233,39 @@
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<!-- Depths of surrounding waypoints -->
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<xsl:variable name="depthfirst">
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<xsl:choose>
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<xsl:when test="../sample[position() = $position - 1 - $events]/@depth != ''">
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<xsl:call-template name="depth2mm">
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<xsl:with-param name="depth">
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<xsl:value-of select="../sample[position() = $position]/@depth"/>
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<xsl:value-of select="../sample[position() = $position - 1 - $events]/@depth"/>
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</xsl:with-param>
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</xsl:call-template>
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</xsl:when>
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<xsl:otherwise>
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<xsl:value-of select="0"/>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:variable>
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<xsl:variable name="depthsecond">
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<xsl:choose>
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<xsl:when test="../sample[position() = $position - $events]/@depth != ''">
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<xsl:call-template name="depth2mm">
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<xsl:with-param name="depth">
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<xsl:value-of select="./@depth"/>
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<xsl:value-of select="../sample[position() = $position - $events]/@depth"/>
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</xsl:with-param>
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</xsl:call-template>
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</xsl:when>
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<xsl:otherwise>
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<xsl:value-of select="0"/>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:variable>
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<!-- Approximated waypoints -->
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<xsl:variable name="timesec">
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<xsl:call-template name="time2sec">
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<xsl:with-param name="time">
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<xsl:value-of select="./@time"/>
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</xsl:with-param>
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</xsl:call-template>
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<xsl:variable name="time">
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<xsl:value-of select="substring-before(@time, ':') * 60 + substring-before(substring-after(@time, ':'), ' ')"/>
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</xsl:variable>
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<!-- Crafting waypoints for events in-between samples -->
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<xsl:for-each select="preceding-sibling::event[substring-before(@time, ':') * 60 + substring-before(substring-after(@time, ':'), ' ')<$timesec and substring-before(@time, ':') * 60 + substring-before(substring-after(@time, ':'), ' ')>($timesec - $delta)]">
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<xsl:if test="$timesecond != $time">
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<waypoint>
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<depth>
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<xsl:call-template name="approximatedepth">
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@ -273,13 +291,7 @@
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</xsl:call-template>
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</depth>
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<divetime>
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<xsl:call-template name="time2sec">
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<xsl:with-param name="time">
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<xsl:value-of select="@time"/>
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</xsl:with-param>
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</xsl:call-template>
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</divetime>
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<divetime><xsl:value-of select="$time"/></divetime>
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<xsl:if test="@name = 'gaschange'">
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<switchmix>
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@ -302,8 +314,9 @@
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</xsl:if>
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</waypoint>
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</xsl:for-each>
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<!-- Approximated waypoints -->
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</xsl:if>
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</xsl:when>
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<xsl:otherwise>
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<!-- Recorded waypoints and events occurring at the exact same time -->
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<waypoint>
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@ -356,6 +369,8 @@
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</xsl:for-each>
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<!-- Recorded waypoints -->
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</waypoint>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:for-each>
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</samples>
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