title: Rotate Google Maps API MarkerImage
body: <p>I have a marker of a rocket on one of my Google Maps apps. Not surprisingly, I need to rotate it depending on where it's headed. How can I do that? Rotating the image with a canvas/VML (like jquery-rotate does) appears to be not an option, because I need to specify a URL as the image source, not an <code>&lt;img&gt;</code> element.</p>