bjoern@0: Possible types
bjoern@0: ==============
bjoern@0: 
bjoern@0: * 3D Character Marker Symbol (deferred)
bjoern@0: * 3D Marker Symbol (deferred)
bjoern@0: * 3D Simple Marker Symbol (defeferred)
bjoern@0: * Arrow Marker Symbol
bjoern@0: * Character Marker Symbol
bjoern@0: * Picture Marker Symbol
bjoern@0: * Simple Marker Symbol
bjoern@0:   * Style:
bjoern@0:      * Circle
bjoern@0:      * Square
bjoern@0:      * Cross
bjoern@0:      * X
bjoern@0:      * Diamond