多层次的慕尼黑分组
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【中文标题】多层次的慕尼黑分组【英文标题】：Multi-level Muenchian Grouping 【发布时间】：2013-08-03 06:24:28 【问题描述】：我希望有人可以通过 Muenchian 分组为我指明正确的方向来帮助我。
我有以下形式的数据：
<?xml version="1.0" encoding="UTF-16"?>
<LandXML schemaLocation="http://www.landxml.org/schema/LandXML-1.2 http://www.landxml.org/schema/LandXML-1.2.xsd" version="1.2" date="2013-08-01" time="22:10:15.294-00:00" readOnly="false" language="english">
<Application name="ListechStyleSheet" version="1, 0, 0, 0" manufacturer="LISTech Pty Ltd" manufacturerURL="www.liscad.com">
<Author createdBy="Listech Development Team" />
</Application>
<Project name="LISCAD" desc="OLC ANGLES JULY 2013" />
<Units>
<Metric linearUnit="meter" areaUnit="squareMeter" volumeUnit="cubicMeter" temperatureUnit="celsius" pressureUnit="HPA" />
</Units>
<Survey>
<ReducedObservation setupID="liscadGM04" azimuth="70.0112" horizDistance="254.696" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="70.0114" horizDistance="254.696" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="70.0113" horizDistance="254.698" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="252.3441" horizDistance="107.081" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00221">
<TargetPoint pntRef="SAW53" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="252.3429" horizDistance="107.081" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00221">
<TargetPoint pntRef="SAW53" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="309.3846" horizDistance="275.373" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00255">
<TargetPoint pntRef="HB402" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="309.3854" horizDistance="275.374" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00255">
<TargetPoint pntRef="HB402" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="320.3917" horizDistance="287.557" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00258">
<TargetPoint pntRef="GM05" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="320.3913" horizDistance="287.557" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00258">
<TargetPoint pntRef="GM05" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="348.0615" horizDistance="108.041" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00222">
<TargetPoint pntRef="SAW144B" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="348.0627" horizDistance="108.041" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00222">
<TargetPoint pntRef="SAW144B" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="35.4956" horizDistance="174.694" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00235">
<TargetPoint pntRef="SAW144" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="35.4955" horizDistance="174.695" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00235">
<TargetPoint pntRef="SAW144" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="70.0114" horizDistance="254.696" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="70.0112" horizDistance="254.697" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="252.3442" horizDistance="107.081" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00221">
<TargetPoint pntRef="SAW53" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="252.3431" horizDistance="107.081" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00221">
<TargetPoint pntRef="SAW53" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="309.3848" horizDistance="275.374" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00255">
<TargetPoint pntRef="HB402" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="309.3855" horizDistance="275.374" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00255">
<TargetPoint pntRef="HB402" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="320.3917" horizDistance="287.556" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00258">
<TargetPoint pntRef="GM05" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="320.3914" horizDistance="287.557" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00258">
<TargetPoint pntRef="GM05" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="348.0613" horizDistance="108.040" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00222">
<TargetPoint pntRef="SAW144B" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="348.0626" horizDistance="108.040" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00222">
<TargetPoint pntRef="SAW144B" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="35.4955" horizDistance="174.695" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00235">
<TargetPoint pntRef="SAW144" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="35.4954" horizDistance="174.695" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00235">
<TargetPoint pntRef="SAW144" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="70.0111" horizDistance="254.697" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="70.0116" horizDistance="254.698" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="252.3441" horizDistance="107.081" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00221">
<TargetPoint pntRef="SAW53" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="252.3433" horizDistance="107.081" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00221">
<TargetPoint pntRef="SAW53" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="309.3848" horizDistance="275.374" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00255">
<TargetPoint pntRef="HB402" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="309.3857" horizDistance="275.374" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00255">
<TargetPoint pntRef="HB402" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="320.3917" horizDistance="287.557" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00258">
<TargetPoint pntRef="GM05" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="320.3911" horizDistance="287.557" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00258">
<TargetPoint pntRef="GM05" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="348.0614" horizDistance="108.041" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00222">
<TargetPoint pntRef="SAW144B" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="348.0627" horizDistance="108.040" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00222">
<TargetPoint pntRef="SAW144B" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="35.4957" horizDistance="174.695" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00235">
<TargetPoint pntRef="SAW144" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="329.0304" horizDistance="138.077" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00228">
<TargetPoint pntRef="SAW61" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="148.0017" horizDistance="133.943" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00227">
<TargetPoint pntRef="GM06" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="148.0026" horizDistance="133.944" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00227">
<TargetPoint pntRef="GM06" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="149.1505" horizDistance="249.106" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00250">
<TargetPoint pntRef="SAW59" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="149.1451" horizDistance="249.106" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00250">
<TargetPoint pntRef="SAW59" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="160.2644" horizDistance="260.353" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00252">
<TargetPoint pntRef="SAW159" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="160.2659" horizDistance="260.353" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00252">
<TargetPoint pntRef="SAW159" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="244.5944" horizDistance="52.087" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00210">
<TargetPoint pntRef="SAW60" />
</ReducedObservation>
等等……
我正在尝试获得如下分组的输出：
liscadGM04
pntRef GM03 Min azimuth=:”70.0109”
pntRef GM03 Max azimuth=:”70.0117”
liscadGM04
pntRef SAW53 Min azimuth=:”107.3429”
pntRef SAW53 Max azimuth=:”107.3442”
liscadGM04
pntRef HB402 Min azimuth=:”309.3845”
pntRef HB402 Max azimuth=:”309.3857”
Etc…..
liscadSAW160
pntRef SAW61 Min azimuth=:”10.0112”
pntRef SAW61 Max azimuth=:”70.0112”
Etc…
我正在努力获得这样的 XSL 代码嵌套，这是我迄今为止的微弱尝试的摘录：
<!-- Define a key that uses our element or attribute for grouping -->
<xsl:key name="SetUp" match="LandXML/Survey/ReducedObservation" use="@setupID" />
<!--<xsl:key name="Target" match="LandXML/Survey/ReducedObservation/TargetPoint" use="@pntRef" />-->
<xsl:key name="Target" match="LandXML/Survey/ReducedObservation/TargetPoint" use="concat(@setupID, '|', @pntRef)" />
<xsl:template match="/">
<html>
<!-- Create a node set for the current Row item (.) and the first
item in the Key of the Current item Category. Then we check the count to see is it 1 or 2..
If 1, So we've the same item in the node set; We have a new Category.-->
<xsl:for-each select="LandXML/Survey/ReducedObservation[count(. | key('SetUp', @setupID)[1]) = 1]">
<!--<xsl:for-each select="LandXML/Survey/ReducedObservation/TargetPoint[count(. | key('Target', @pntRef)[1]) = 1]">-->
<!-- Sort by the Category -->
<xsl:sort select="@setupID" />
<xsl:sort select="TargetPoint/@pntRef" />
<xsl:sort select="@azimuth"/>
<xsl:value-of select='substring(@setupID,7)' />
<br />
<!-- Now loop on the items of this Category, We get them from the Key we defined -->
<xsl:for-each select="key('SetUp', @setupID)">
<!--<xsl:for-each select="key('Target', @pntRef)">-->
<!-- Sort by the item Value -->
<xsl:if test="position() = 1">
Min
<xsl:value-of select="TargetPoint/@pntRef"/>:
<xsl:value-of select="@azimuth"/><br />
</xsl:if>
<xsl:if test="position() = last()">
Max
<xsl:value-of select="TargetPoint/@pntRef"/>:
<xsl:value-of select="@azimuth"/>
</xsl:if>
<!--</xsl:for-each>-->
</xsl:for-each>
<hr />
<br />
</xsl:for-each>
谁能指出我正确的方向？
谢谢
李莫尔斯
【问题讨论】：
【参考方案1】：你必须使用 Muenchian 方法吗？我告诉我的学生，对于多级分组，我发现基于变量的分组方法更容易编写。
t:\ftemp>type land.xml
<?xml version="1.0" encoding="UTF-16"?>
<LandXML version="1.2" date="2013-08-01" time="22:10:15.294-00:00" readOnly="false" language="english">
<Application name="ListechStyleSheet" version="1, 0, 0, 0" manufacturer="LISTech Pty Ltd" manufacturerURL="www.liscad.com">
<Author createdBy="Listech Development Team" />
</Application>
<Project name="LISCAD" desc="OLC ANGLES JULY 2013" />
<Units>
<Metric linearUnit="meter" areaUnit="squareMeter" volumeUnit="cubicMeter" temperatureUnit="celsius" pressureUnit="HPA" />
</Units>
<Survey>
<ReducedObservation setupID="liscadGM04" azimuth="70.0112" horizDistance="254.696" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="70.0114" horizDistance="254.696" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="70.0113" horizDistance="254.698" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="252.3441" horizDistance="107.081" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00221">
<TargetPoint pntRef="SAW53" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="252.3429" horizDistance="107.081" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00221">
<TargetPoint pntRef="SAW53" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="309.3846" horizDistance="275.373" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00255">
<TargetPoint pntRef="HB402" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="309.3854" horizDistance="275.374" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00255">
<TargetPoint pntRef="HB402" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="320.3917" horizDistance="287.557" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00258">
<TargetPoint pntRef="GM05" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="320.3913" horizDistance="287.557" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00258">
<TargetPoint pntRef="GM05" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="348.0615" horizDistance="108.041" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00222">
<TargetPoint pntRef="SAW144B" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="348.0627" horizDistance="108.041" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00222">
<TargetPoint pntRef="SAW144B" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="35.4956" horizDistance="174.694" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00235">
<TargetPoint pntRef="SAW144" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="35.4955" horizDistance="174.695" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00235">
<TargetPoint pntRef="SAW144" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="70.0114" horizDistance="254.696" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="70.0112" horizDistance="254.697" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="252.3442" horizDistance="107.081" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00221">
<TargetPoint pntRef="SAW53" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="252.3431" horizDistance="107.081" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00221">
<TargetPoint pntRef="SAW53" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="309.3848" horizDistance="275.374" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00255">
<TargetPoint pntRef="HB402" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="309.3855" horizDistance="275.374" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00255">
<TargetPoint pntRef="HB402" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="320.3917" horizDistance="287.556" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00258">
<TargetPoint pntRef="GM05" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="320.3914" horizDistance="287.557" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00258">
<TargetPoint pntRef="GM05" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="348.0613" horizDistance="108.040" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00222">
<TargetPoint pntRef="SAW144B" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="348.0626" horizDistance="108.040" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00222">
<TargetPoint pntRef="SAW144B" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="35.4955" horizDistance="174.695" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00235">
<TargetPoint pntRef="SAW144" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="35.4954" horizDistance="174.695" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00235">
<TargetPoint pntRef="SAW144" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="70.0111" horizDistance="254.697" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="70.0116" horizDistance="254.698" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="252.3441" horizDistance="107.081" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00221">
<TargetPoint pntRef="SAW53" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="252.3433" horizDistance="107.081" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00221">
<TargetPoint pntRef="SAW53" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="309.3848" horizDistance="275.374" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00255">
<TargetPoint pntRef="HB402" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="309.3857" horizDistance="275.374" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00255">
<TargetPoint pntRef="HB402" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="320.3917" horizDistance="287.557" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00258">
<TargetPoint pntRef="GM05" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="320.3911" horizDistance="287.557" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00258">
<TargetPoint pntRef="GM05" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="348.0614" horizDistance="108.041" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00222">
<TargetPoint pntRef="SAW144B" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="348.0627" horizDistance="108.040" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00222">
<TargetPoint pntRef="SAW144B" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="35.4957" horizDistance="174.695" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00235">
<TargetPoint pntRef="SAW144" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="329.0304" horizDistance="138.077" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00228">
<TargetPoint pntRef="SAW61" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="148.0017" horizDistance="133.943" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00227">
<TargetPoint pntRef="GM06" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="148.0026" horizDistance="133.944" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00227">
<TargetPoint pntRef="GM06" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="149.1505" horizDistance="249.106" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00250">
<TargetPoint pntRef="SAW59" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="149.1451" horizDistance="249.106" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00250">
<TargetPoint pntRef="SAW59" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="160.2644" horizDistance="260.353" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00252">
<TargetPoint pntRef="SAW159" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="160.2659" horizDistance="260.353" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00252">
<TargetPoint pntRef="SAW159" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="244.5944" horizDistance="52.087" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00210">
<TargetPoint pntRef="SAW60" />
</ReducedObservation>
</Survey>
</LandXML>
t:\ftemp>call xslt land.xml land.xsl
liscadGM04
pntRef GM03 Min azimuth:70.0111
pntRef GM03 Max azimuth:70.0116
liscadGM04
pntRef SAW53 Min azimuth:252.3429
pntRef SAW53 Max azimuth:252.3442
liscadGM04
pntRef HB402 Min azimuth:309.3846
pntRef HB402 Max azimuth:309.3857
liscadGM04
pntRef GM05 Min azimuth:320.3911
pntRef GM05 Max azimuth:320.3917
liscadGM04
pntRef SAW144B Min azimuth:348.0613
pntRef SAW144B Max azimuth:348.0627
liscadGM04
pntRef SAW144 Min azimuth:35.4954
pntRef SAW144 Max azimuth:35.4957
liscadSAW160
pntRef SAW61 Min azimuth:329.0304
pntRef SAW61 Max azimuth:329.0304
liscadSAW160
pntRef GM06 Min azimuth:148.0017
pntRef GM06 Max azimuth:148.0026
liscadSAW160
pntRef SAW59 Min azimuth:149.1451
pntRef SAW59 Max azimuth:149.1505
liscadSAW160
pntRef SAW159 Min azimuth:160.2644
pntRef SAW159 Max azimuth:160.2659
liscadSAW160
pntRef SAW60 Min azimuth:244.5944
pntRef SAW60 Max azimuth:244.5944
t:\ftemp>type land.xsl
<?xml version="1.0" encoding="US-ASCII"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0">
<xsl:output method="text"/>
<xsl:template match="/">
<xsl:variable name="obs" select="LandXML/Survey/ReducedObservation"/>
<xsl:for-each select="$obs">
<xsl:if test="generate-id(.)=
generate-id($obs[@setupID=current()/@setupID][1])">
<xsl:variable name="setups"
select="$obs[@setupID=current()/@setupID]"/>
<xsl:variable name="thisSetup" select="@setupID"/>
<xsl:for-each select="$setups">
<xsl:if test="generate-id(.)=
generate-id($setups[TargetPoint/@pntRef=
current()/TargetPoint/@pntRef][1])">
<xsl:value-of select="$thisSetup"/>
<xsl:text>
</xsl:text>
<xsl:variable name="points"
select="$setups[TargetPoint/@pntRef=
current()/TargetPoint/@pntRef]"/>
<xsl:variable name="azimuths"
select="$points/@azimuth"/>
<xsl:text> pntRef </xsl:text>
<xsl:value-of select="TargetPoint/@pntRef"/>
<xsl:text> Min azimuth:</xsl:text>
<xsl:value-of select="$azimuths[not(.>$azimuths)][1]"/>
<xsl:text>
 pntRef </xsl:text>
<xsl:value-of select="TargetPoint/@pntRef"/>
<xsl:text> Max azimuth:</xsl:text>
<xsl:value-of select="$azimuths[not(.<$azimuths)][1]"/>
<xsl:text>
</xsl:text>
</xsl:if>
</xsl:for-each>
</xsl:if>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>
t:\ftemp>rem Done!
【讨论】：
您好，感谢您的回复。不，我不必使用 Muenchian Grouping。从我一直在阅读的内容来看，这似乎是建议的方式。我试过你的代码。在 Altova XMLSpy 中单步执行它似乎正在工作并生成代码，但是如果我让它运行应用程序挂起，Dreamweaver 中的结果类似。不知道为什么。原始 XML 文件长约 50,000 行，我想知道循环是否效率低下？你能给我解释一下代码吗？我在执行操作时遇到了一些麻烦，谢谢 Lee 您是否创建了一个测试 XML 文件，例如 1,000 行并用它运行它？我怀疑你只是内存不足。当您这样做时，我将创建一个使用密钥的解决方案。基于变量的方法确实会消耗大量内存，而基于键的方法会消耗更少的内存。对于您的特定情况，这可能是最重要的因素。 基于变量的方法建立被分组在变量中的项目的总体，然后通过遍历变量并检查每个成员从变量中找到“文档顺序中的第一个”。将此与基于键的方法（Muenchian）进行对比，其中“文档顺序中的第一个”是通过查找键值来确定的。我告诉我的学生，多级分组可以使用基于键的方法来完成，但是键的确定可能是一个挑战。此外，当您的人口跨越多个输入文档时，不能使用键，但变量可以。 嗨，是的，我已经在一个小型设备上运行过它并且它确实有效，但完整的一个正在苦苦挣扎。感谢您的所有帮助，非常宝贵！【参考方案2】：好的，试试这个基于密钥的解决方案。事实证明，由于您没有按 setupID 进行分组，因此它只是单级分组，而不是多级分组，因此只需要一个键。当我开始根据您的问题标题进行基于变量的分组时，我没有注意到这一点。它产生与我的基于变量的解决方案相同的结果。它将占用更少的内存，希望更少的内存足以在您的环境中工作。
还请注意，您的最小/最大计算是多余的，我的两个解决方案都建议使用更简单的方法。
t:\ftemp>type land.xml
<?xml version="1.0" encoding="UTF-16"?>
<LandXML version="1.2" date="2013-08-01" time="22:10:15.294-00:00" readOnly="false" language="english">
<Application name="ListechStyleSheet" version="1, 0, 0, 0" manufacturer="LISTech Pty Ltd" manufacturerURL="www.liscad.com">
<Author createdBy="Listech Development Team" />
</Application>
<Project name="LISCAD" desc="OLC ANGLES JULY 2013" />
<Units>
<Metric linearUnit="meter" areaUnit="squareMeter" volumeUnit="cubicMeter" temperatureUnit="celsius" pressureUnit="HPA" />
</Units>
<Survey>
<ReducedObservation setupID="liscadGM04" azimuth="70.0112" horizDistance="254.696" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="70.0114" horizDistance="254.696" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="70.0113" horizDistance="254.698" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="252.3441" horizDistance="107.081" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00221">
<TargetPoint pntRef="SAW53" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="252.3429" horizDistance="107.081" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00221">
<TargetPoint pntRef="SAW53" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="309.3846" horizDistance="275.373" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00255">
<TargetPoint pntRef="HB402" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="309.3854" horizDistance="275.374" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00255">
<TargetPoint pntRef="HB402" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="320.3917" horizDistance="287.557" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00258">
<TargetPoint pntRef="GM05" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="320.3913" horizDistance="287.557" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00258">
<TargetPoint pntRef="GM05" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="348.0615" horizDistance="108.041" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00222">
<TargetPoint pntRef="SAW144B" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="348.0627" horizDistance="108.041" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00222">
<TargetPoint pntRef="SAW144B" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="35.4956" horizDistance="174.694" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00235">
<TargetPoint pntRef="SAW144" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="35.4955" horizDistance="174.695" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00235">
<TargetPoint pntRef="SAW144" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="70.0114" horizDistance="254.696" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="70.0112" horizDistance="254.697" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="252.3442" horizDistance="107.081" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00221">
<TargetPoint pntRef="SAW53" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="252.3431" horizDistance="107.081" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00221">
<TargetPoint pntRef="SAW53" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="309.3848" horizDistance="275.374" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00255">
<TargetPoint pntRef="HB402" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="309.3855" horizDistance="275.374" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00255">
<TargetPoint pntRef="HB402" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="320.3917" horizDistance="287.556" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00258">
<TargetPoint pntRef="GM05" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="320.3914" horizDistance="287.557" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00258">
<TargetPoint pntRef="GM05" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="348.0613" horizDistance="108.040" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00222">
<TargetPoint pntRef="SAW144B" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="348.0626" horizDistance="108.040" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00222">
<TargetPoint pntRef="SAW144B" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="35.4955" horizDistance="174.695" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00235">
<TargetPoint pntRef="SAW144" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="35.4954" horizDistance="174.695" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00235">
<TargetPoint pntRef="SAW144" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="70.0111" horizDistance="254.697" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="70.0116" horizDistance="254.698" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00251">
<TargetPoint pntRef="GM03" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="252.3441" horizDistance="107.081" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00221">
<TargetPoint pntRef="SAW53" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="252.3433" horizDistance="107.081" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00221">
<TargetPoint pntRef="SAW53" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="309.3848" horizDistance="275.374" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00255">
<TargetPoint pntRef="HB402" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="309.3857" horizDistance="275.374" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00255">
<TargetPoint pntRef="HB402" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="320.3917" horizDistance="287.557" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00258">
<TargetPoint pntRef="GM05" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="320.3911" horizDistance="287.557" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00258">
<TargetPoint pntRef="GM05" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="348.0614" horizDistance="108.041" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00222">
<TargetPoint pntRef="SAW144B" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="348.0627" horizDistance="108.040" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00222">
<TargetPoint pntRef="SAW144B" />
</ReducedObservation>
<ReducedObservation setupID="liscadGM04" azimuth="35.4957" horizDistance="174.695" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00235">
<TargetPoint pntRef="SAW144" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="329.0304" horizDistance="138.077" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00228">
<TargetPoint pntRef="SAW61" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="148.0017" horizDistance="133.943" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00227">
<TargetPoint pntRef="GM06" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="148.0026" horizDistance="133.944" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00227">
<TargetPoint pntRef="GM06" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="149.1505" horizDistance="249.106" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00250">
<TargetPoint pntRef="SAW59" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="149.1451" horizDistance="249.106" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00250">
<TargetPoint pntRef="SAW59" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="160.2644" horizDistance="260.353" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00252">
<TargetPoint pntRef="SAW159" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="160.2659" horizDistance="260.353" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00252">
<TargetPoint pntRef="SAW159" />
</ReducedObservation>
<ReducedObservation setupID="liscadSAW160" azimuth="244.5944" horizDistance="52.087" azimuthType="measured" azimuthAccuracy="0.000300" distanceAccuracy="0.00210">
<TargetPoint pntRef="SAW60" />
</ReducedObservation>
</Survey>
</LandXML>
t:\ftemp>call xslt land.xml land.xsl
liscadGM04
pntRef GM03 Min azimuth:70.0111
pntRef GM03 Max azimuth:70.0116
liscadGM04
pntRef SAW53 Min azimuth:252.3429
pntRef SAW53 Max azimuth:252.3442
liscadGM04
pntRef HB402 Min azimuth:309.3846
pntRef HB402 Max azimuth:309.3857
liscadGM04
pntRef GM05 Min azimuth:320.3911
pntRef GM05 Max azimuth:320.3917
liscadGM04
pntRef SAW144B Min azimuth:348.0613
pntRef SAW144B Max azimuth:348.0627
liscadGM04
pntRef SAW144 Min azimuth:35.4954
pntRef SAW144 Max azimuth:35.4957
liscadSAW160
pntRef SAW61 Min azimuth:329.0304
pntRef SAW61 Max azimuth:329.0304
liscadSAW160
pntRef GM06 Min azimuth:148.0017
pntRef GM06 Max azimuth:148.0026
liscadSAW160
pntRef SAW59 Min azimuth:149.1451
pntRef SAW59 Max azimuth:149.1505
liscadSAW160
pntRef SAW159 Min azimuth:160.2644
pntRef SAW159 Max azimuth:160.2659
liscadSAW160
pntRef SAW60 Min azimuth:244.5944
pntRef SAW60 Max azimuth:244.5944
t:\ftemp>type land.xsl
<?xml version="1.0" encoding="US-ASCII"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0">
<xsl:output method="text"/>
<xsl:key name="setup-refs" match="ReducedObservation"
use="concat(@setupID,' ',TargetPoint/@pntRef)"/>
<xsl:template match="/">
<xsl:for-each select="LandXML/Survey/ReducedObservation
[generate-id(.)=
generate-id(key('setup-refs',
concat(@setupID,' ',TargetPoint/@pntRef))[1])]">
<xsl:value-of select="@setupID"/>
<xsl:text>
</xsl:text>
<xsl:variable name="azimuths"
select="key('setup-refs',
concat(@setupID,' ',TargetPoint/@pntRef))/
@azimuth"/>
<xsl:text> pntRef </xsl:text>
<xsl:value-of select="TargetPoint/@pntRef"/>
<xsl:text> Min azimuth:</xsl:text>
<xsl:value-of select="$azimuths[not(.>$azimuths)][1]"/>
<xsl:text>
 pntRef </xsl:text>
<xsl:value-of select="TargetPoint/@pntRef"/>
<xsl:text> Max azimuth:</xsl:text>
<xsl:value-of select="$azimuths[not(.<$azimuths)][1]"/>
<xsl:text>
</xsl:text>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>
t:\ftemp>rem Done!
【讨论】：
效果很好！谢谢。以上是关于多层次的慕尼黑分组的主要内容，如果未能解决你的问题，请参考以下文章