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POMoving markers in Google Maps API v3 without being so processor intensive?
 

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  1. POMoving markers in Google Maps API v3 without being so processor intensive?
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    <p>I'm trying to move a marker on a GoogleMap to simulate real time object movements. At present the JavaScript pseudo code for how I do this is:</p> <pre><code>var marker = new google.maps.Marker({ position: myLatlng, map: map }); var myMovementArray[] = new movementArray(startPoint, endPoint); drawMovement(int pos){ marker.setPosition(myMovementArray[pos]["lat"], myMovementArray[pos]["lng"]); pos++; if (pos &lt; myMovementArray.length()){ setTimeout('drawMovement('+pos+')', 33); } } init(){ drawMovement(0); } </code></pre> <p>Where each element in the movement array is calculated through:</p> <pre><code>deltaLat = (endPos.lat - startPos.lat)/frames; deltaLng = (endPos.lng - startPos.lng)/frames; myMovementArray[i]["lat"] = startPos.lat + (deltaLat * i); myMovementArray[i]["lng"] = startPos.lng + (deltaLng * i); </code></pre> <p>For reference, the full JavaScript file I am using is up at: <a href="http://spad.es/js/com.kamkash.locateme.viewer.dev.js" rel="nofollow">http://spad.es/js/com.kamkash.locateme.viewer.dev.js</a></p> <p>The problem I have is that this method of moving markers on Google maps seems to be quite processor intensive. I've searched around to see if the Google Maps API has a clean way of animating marker movement from point A to point B, but can't find anything. And the other most referenced method for doing this that I've found is exemplified at <a href="http://www.geocodezip.com/v3_animate_marker_directions.html" rel="nofollow">http://www.geocodezip.com/v3_animate_marker_directions.html</a> but then that uses the same method I have deployed.</p> <p>The code is used in practice at: www.spad.es/random</p> <p>Does anybody have a more processor-efficient/cleaner way of doing this?</p> <p>Thanks</p>
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    1. COI have also seen this entry: http://stackoverflow.com/questions/665193/how-to-animate-a-custom-google-maps-marker-along-a-route but it does not answer the question on if there is a more processor friendly approach. The example of the car with directions uses a GIcon which seems less intensive, but then I am not sure if I can attach an accuracy radius (google.maps.Circle object) to it
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    2. COGoogle Maps API renders markers much more efficiently if they are set via KML. Not sure if that improves performance for moving a marker as well, but it seems plausible.
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