Optional
[markerInternal unique marker ID. This ID is used to identify markers in the annotation when updating, etc.
Optional
notesAdditional information about the marker.
Optional
opacityMarker's opacity.
Optional
strokeMarker's stroke (outline) color.
Optional
strokeMarker's stroke (outline) dash array.
Optional
strokeMarker's stroke (outline) width.
Marker's type name.
x coordinate for the first end-point.
x coordinate for the second end-point.
y coordinate for the first end-point.
y coordinate for the second end-point.
Represents the state of the arrow marker.