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POTrying to create a Group Selection Box in Google Earth Plugin
 

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  1. POTrying to create a Group Selection Box in Google Earth Plugin
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    <p>I am building a c# application that uses the Google Earth plugin through a web browser control. As part of the application, I need to be able to create a multi-select box around a certain area on the globe (think something similar to drag-selecting multiple files in your file browser).</p> <p>The way I have it set up right now, the c# code keeps track of when I am in select mode, if I am, the first left click pulls the lat-long of that point from the google earth plugin. After that, mouse moves get the lat-long of the opposite corner, and then the c# code calls the following 2 javascript functions:</p> <pre><code>function clearHighlightBox(){ var placemark = ge.getElementById('DARTselectBox'); if(placemark) { ge.getFeatures().removeChild(placemark); } } function setHighlightBox(lat1, long1, lat2, long2){ clearHighlightBox(); var placemark = ge.createPlacemark('DARTselectBox'); var lineString = ge.createLineString(''); var coords = lineString.getCoordinates(); coords.pushLatLngAlt(lat1, long1, 5000); coords.pushLatLngAlt(lat1, long2, 5000); coords.pushLatLngAlt(lat2, long2, 5000); coords.pushLatLngAlt(lat2, long1, 5000); coords.pushLatLngAlt(lat1, long1, 5000); placemark.setGeometry(lineString); ge.getFeatures().appendChild(placemark); } </code></pre> <p>First off, creating the ID for the placemark this way does not seem to work (ge.createPlacemark('DARTselectBox');). If I switch this to clear everything and remove the ID from the create Placemark call, this at least doesn't crash. However, even when I do that, I only see the right vertical leg of my rectangle.</p>
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