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POAccessor to the Point's information of a placemark to modify the altitude
 

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  1. POAccessor to the Point's information of a placemark to modify the altitude
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    <p>I have a web working with google-earth API where I use multiple KML layers to show data.</p> <p>With the interactions of the user it's necessary to modify some properties of the placemark like styles and names in order to change the placemarks display information.</p> <p>In some cases I would like to modify at the <code>Altitude</code> of the placemarks, information included in the <code>Point</code> information of the geometry specified at the KML. Actually it is <code>clampedToGround</code> and I would like to modify it to any number in order to be in top of other elements.</p> <p>This is an example of how I modify the placemarks information:</p> <pre><code>var pm = ge.getElementByUrl(UrlOfLayer#IdOfPlacemark); pm.setStyleUrl(UrlOfLayer#IdOfStyleMap); pm.setName(NewName); </code></pre> <p>This is working perfectly and all changes are applied without any problem. The structure of the KML placemarks is as it follows:</p> <pre><code>&lt;Placemark id="1"&gt; &lt;name&gt;Name&lt;/name&gt; &lt;visibility&gt;1&lt;/visibility&gt; &lt;open&gt;0&lt;/open&gt; &lt;Point&gt; &lt;extrude&gt;1&lt;/extrude&gt; &lt;tessellate&gt;1&lt;/tessellate&gt; &lt;altitude&gt;clampedToGround&lt;/altitude&gt; &lt;coordinates&gt;1,1,1&lt;/coordinates&gt; &lt;/Point&gt; &lt;styleUrl&gt;#style&lt;/styleUrl&gt; &lt;/Placemark&gt; </code></pre> <p>With this structure and the Placemark in Javascript got by <code>getElementByUrl</code> I can access the fields name, visibility, etc just by <code>getName()</code>, <code>getVisibility()</code>, etc. But, this doesn't work with Point information, since that is included inside the <code>Geometry</code> object of the placemark.</p> <p>I can access the Geometry information by using <code>pm.getGeometry()</code>, but after that, the 'Point' can't be accessed because as Google earth documentation sais: </p> <blockquote> <p>The KmlGeometry object is an abstract object and cannot be used directly. It provides a placeholder object for all derived Geometry objects.</p> </blockquote> <p>Looking at some examples where the Point information is used, it's only used to create a Point and after that include it at the Geometry, but in my case I can't create the point in Javascript because I can't get the coordinates information and the new point would overwrite it.</p> <p>So, is there any accessor I haven't been able to find to accomplish this purpose?</p>
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