Point mark in KML

Put a mark on a point. <Point>

Put a mark at Longitutde 135.2E and Latitude 35.4N.
```
<?xml version="1.0" encoding="UTF-8"?> 
<kml xmlns="http://earth.google.com/kml/2.0"> <Document>

<Placemark> 
 <Point>
  <coordinates>
   135.2, 35.4, 0. 
  </coordinates>
 </Point>
</Placemark>

</Document> </kml>
```
The first two lines and the last line are the begin and end of KML file, respectively. Just keep as they are.
The tags of KML is case sensitive.
Altitude is ignored when "<altitudeMode>", which is discribed below, is not specified.

<?xml version="1.0" encoding="UTF-8"?> 
<kml xmlns="http://earth.google.com/kml/2.0"> <Document>

<Placemark> 
 <name> New point</name> 
 <Point>
  <coordinates>
   135.2, 35.4, 0.
  </coordinates>
 </Point> 
</Placemark>

</Document> </kml>

Description of the marker <description>

<?xml version="1.0" encoding="UTF-8"?> 
<kml xmlns="http://earth.google.com/kml/2.0"> <Document>

<Placemark> 
 <name> New point</name> 
 <description>This is a new point.</description>
 <Point>
  <coordinates>
   135.2, 35.4, 0.
  </coordinates>
 </Point> 
</Placemark>

</Document> </kml>

Change the icon of the marker<Style>, <IconStyle>, <styleUrl>

<?xml version="1.0" encoding="UTF-8"?> 
<kml xmlns="http://earth.google.com/kml/2.0"> <Document>

<Style id="My_Style">
 <IconStyle> <Icon> <href>ball.png</href> </Icon></IconStyle>
</Style> 

<Placemark>
 <name> New point</name> 
 <description>This is a new point to learn KML format.</description>
 <styleUrl> #My_Style</styleUrl> 
 <Point>
  <coordinates>
   135.2, 35.4, 0.
  </coordinates>
 </Point> 
</Placemark>

</Document> </kml>

Save "ball.png" in the same folder with the above kml file.
Image file can be a file on WWW, such as "http://www...../ball.png" .
"styleUrl" can also be a style file on WWW.
To make one file with image files and kml file, combine the kml file and image files with "zip" command, and set the extension ".kmz", such as "test.kmz".

Change the style of "Balloon".<BalloonStyle>, <text>, <![CDATA[, ]]>

<?xml version="1.0" encoding="UTF-8"?> 
<kml xmlns="http://earth.google.com/kml/2.0"> <Document>

<Style id="My_Style">
 <IconStyle> <Icon> <href>ball.png</href> </Icon></IconStyle>
 <BalloonStyle>
  <bgColor>00664422</bgColor> <textColor>fffffff</textColor>
  <text><![CDATA[ $[name] <HR> $[description] <BR>  
   <A HREF="http://www-step.kugi.kyoto-u.ac.jp/">SPEL Home page</A>
  ]]> </text>
 </BalloonStyle>
</Style>

<Placemark>
 <name> New point</name> 
 <description>This is a new point to learn KML format.</description>
 <styleUrl> #My_Style</styleUrl> 
 <Point>
  <coordinates>
   135.2, 35.4, 0.
  </coordinates>
 </Point> 
</Placemark>

</Document> </kml>

"<name>" and "<description>" written in "<Placemark>" can be referred by "$[name]" and "$[description]", resepectively.

Set the time of the marker <TimeSpan>, <begin>, <end>

<?xml version="1.0" encoding="UTF-8"?> 
<kml xmlns="http://earth.google.com/kml/2.0"> <Document>

<Style id="My_Style">
 <IconStyle> <Icon> <href>ball.png</href> </Icon></IconStyle>
 <BalloonStyle>
  <bgColor>00664422</bgColor> <textColor>fffffff</textColor>
  <text><![CDATA[ $[name] <HR> $[description] <BR>  
   <A HREF="http://www-step.kugi.kyoto-u.ac.jp/">SPEL Home page</A>
  ]]> </text>
 </BalloonStyle>
</Style> 

<Placemark>
 <name> New point</name> 
 <TimeSpan> 
  <begin>2010-12-20T03:00:00Z</begin>
  <end>2010-12-21T02:59:59Z</end>
 </TimeSpan>
 <description>This is a new point to learn KML format.</description>
 <styleUrl> #My_Style</styleUrl> 
 <Point>
  <coordinates>
   135.2, 35.4, 0.
  </coordinates>
 </Point> 
</Placemark>

</Document> </kml>

Time in Universal Time (UT) can be set by "YYYY-MM-DDTHH:MM:SSZ".
Start and end time are set by " <begin>" and "<end>”, respectively.

Put a mark at the altitude. <altitudeMode>

<?xml version="1.0" encoding="UTF-8"?> 
<kml xmlns="http://earth.google.com/kml/2.0"> <Document>

<Placemark> 
 <name> Mark in the air</name> 
 <Point>
  <coordinates>
   135.2, 35.4, 1000.
  </coordinates>
  <altitudeMode>absolute</altitudeMode>
 </Point> 
</Placemark>

</Document> </kml>

Unit is meter.
"<altitudeMode>relativeToGround</altitudeMode>" is for the altitude relative to the ground surface.

Draw a vertical line from the marker to the ground. <extrude>

<?xml version="1.0" encoding="UTF-8"?> 
<kml xmlns="http://earth.google.com/kml/2.0"> <Document>

<Placemark> 
 <name> Relative to Ground</name> 
 <Point>
  <coordinates>
   135.2, 35.4, 1000.
  </coordinates>
  <altitudeMode>relativeToGround</altitudeMode>
  <extrude>1</extrude>
 </Point> 
</Placemark>

</Document> </kml>