我有一个如下的KML文件:
<?xml version="1.0"?><kml xmlns="http://earth.google.com/kml/2.1">
<Document>
<name>MST =T</name>
<description><![CDATA[<p>KML test file</p>
<p>This is a test version.</p>]]></description>
<Style id="spstyle5">
<IconStyle>
<color>ff3EE23E</color>
<Icon><href>http://maps.google.com/mapfiles/kml/paddle/wht-blank.png</href></Icon>
</IconStyle>
<LineStyle>
<color>ff3EE23E</color>
<width>4</width>
</LineStyle>
</Style>
<Folder>
<name>Track5</name>
<visibility>0</visibility>
<name>sp5_sp6_ Track</name>
<description><![CDATA[<i>sp5_sp6_</i> track<br>pantrack id:5]]></description>
<Placemark>
<name>sp5_sp6_ MST</name>
<description><![CDATA[<i> species sp5_sp6_</i> mst<br>long= 648.000 corte 0.250000]]></description>
<styleUrl>#spstyle5</styleUrl>
<MultiGeometry>
<LineString>
<tessellate>true</tessellate>
<altitudeMode>clampToGround</altitudeMode>
<coordinates>
8.000,8.000 6.000,7.000
</coordinates>
</LineString>
<LineString>
<tessellate>true</tessellate>
<altitudeMode>clampToGround</altitudeMode>
<coordinates>
5.000,7.000 6.000,7.000
</coordinates>
</LineString>
<LineString>
<tessellate>true</tessellate>
<altitudeMode>clampToGround</altitudeMode>
<coordinates>
3.000,8.000 5.000,7.000
</coordinates>
</LineString>
<LineString>
<tessellate>true</tessellate>
<altitudeMode>clampToGround</altitudeMode>
<coordinates>
2.000,8.000 3.000,8.000
</coordinates>
</LineString>
</MultiGeometry>
</Placemark>
</Folder>
<Style id="spstyle7">
<IconStyle>
<color>ffBC77DC</color>
<Icon><href>http://maps.google.com/mapfiles/kml/paddle/wht-blank.png</href></Icon>
</IconStyle>
<LineStyle>
<color>ffBC77DC</color>
<width>4</width>
</LineStyle>
</Style>
<Folder>
<name>Track7</name>
<visibility>0</visibility>
<name>sp1_sp2_sp6_ Track</name>
<description><![CDATA[<i>sp1_sp2_sp6_</i> track<br>pantrack id:7]]></description>
<Placemark>
<name>sp1_sp2_sp6_ MST</name>
<description><![CDATA[<i> species sp1_sp2_sp6_</i> mst<br>long= 441.000 corte 0.250000]]></description>
<styleUrl>#spstyle7</styleUrl>
<MultiGeometry>
<LineString>
<tessellate>true</tessellate>
<altitudeMode>clampToGround</altitudeMode>
<coordinates>
11.000,6.000 12.000,6.000
</coordinates>
</LineString>
<LineString>
<tessellate>true</tessellate>
<altitudeMode>clampToGround</altitudeMode>
<coordinates>
12.000,6.000 12.000,4.000
</coordinates>
</LineString>
<LineString>
<tessellate>true</tessellate>
<altitudeMode>clampToGround</altitudeMode>
<coordinates>
12.000,4.000 11.000,3.000
</coordinates>
</LineString>
</MultiGeometry>
</Placemark>
</Folder>
<Style id="spstyle8">
<IconStyle>
<color>ff97287A</color>
<Icon><href>http://maps.google.com/mapfiles/kml/paddle/wht-blank.png</href></Icon>
</IconStyle>
<LineStyle>
<color>ff97287A</color>
<width>4</width>
</LineStyle>
</Style>
<Folder>
<name>Track8</name>
<visibility>0</visibility>
<name>sp3_sp6_sp4_sp6_ Track</name>
<description><![CDATA[<i>sp3_sp6_sp4_sp6_</i> track<br>pantrack id:8]]></description>
<Placemark>
<name>sp3_sp6_sp4_sp6_ MST</name>
<description><![CDATA[<i> species sp3_sp6_sp4_sp6_</i> mst<br>long= 757.000 corte 0.250000]]></description>
<styleUrl>#spstyle8</styleUrl>
<MultiGeometry>
<LineString>
<tessellate>true</tessellate>
<altitudeMode>clampToGround</altitudeMode>
<coordinates>
8.000,8.000 8.000,7.000
</coordinates>
</LineString>
<LineString>
<tessellate>true</tessellate>
<altitudeMode>clampToGround</altitudeMode>
<coordinates>
8.000,7.000 11.000,6.000
</coordinates>
</LineString>
<LineString>
<tessellate>true</tessellate>
<altitudeMode>clampToGround</altitudeMode>
<coordinates>
11.000,6.000 11.000,5.000
</coordinates>
</LineString>
<LineString>
<tessellate>true</tessellate>
<altitudeMode>clampToGround</altitudeMode>
<coordinates>
11.000,6.000 12.000,6.000
</coordinates>
</LineString>
<LineString>
<tessellate>true</tessellate>
<altitudeMode>clampToGround</altitudeMode>
<coordinates>
11.000,5.000 12.000,4.000
</coordinates>
</LineString>
</MultiGeometry>
</Placemark>
</Folder>
</Document>
</kml>
我希望能够分别提取每个标记名称以及与该标记相关联的LineString标签中的所有坐标,从而得到类似以下的结果:
Placemark A
x, y
x, y
x, y
...
Placemark B
x, y
x, y
x, y
我尝试了这里提出的所有解决方案,但它们都无法处理我的数据。事实上,那里的所有解决方案都非常通用,并且没有提供测试数据来验证它们。
更新:使用下面的代码,我已经能够提取所有placemarks和linecoordinates(我只是忘记了该死的命名空间):
from pykml import parser
filename = "output0.kml"
with open(filename) as f:
root = parser.parse(f).getroot()
pms = root.findall('.//{http://earth.google.com/kml/2.1}Placemark')
lst = doc.findall('.//{http://earth.google.com/kml/2.1}LineString')
for pm in pms:
print(pm.name)
for ls in lst:
print(ls.coordinates)
但是仍然无法弄清楚如何提取按Placemark分组的坐标!