Using custom point markers in Matlab Mapping Toolbox

I'm trying to find out if it's possible to create custom point markers (from some image files) in Matlab with Mapping Toolbox.

So far, I didn't find anything about this in their documentation. Online searches only yielded:

No. The marker shapes are hard-coded and you can开发者_如何学编程not add new ones. If you want a custom marker, then at each point you want the marker, you will have to use line() or equivalent to draw the marker or image() or equivalent to draw in an image.

(Source: http://groups.google.com/group/comp.soft-sys.matlab/browse_thread/thread/4fe4e31f191f7080)

PS: I also cross-posted this to https://gis.stackexchange.com/questions/3413/using-custom-point-markers-in-matlab-mapping-toolbox

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How about this? Image Markers: Plots an image and superimposes a binary image as a colored marker.