Create a struct for each polyline found and add necessary data to it
polylines = create_polylines_struct(axes)
cell with axes handles
the figures colormap
struct with polylines data
Creates a struct for each polyline found in any axis and add the following fields: .handle: polyline handle .associated_axis: axis handle which polyline belongs to .visible: polyline visibility (on|off) .data: plotting data representing the polyline .line: struct with fields associated to the line representation Fields in line: style, color.foreground, color.background .mark: struct with fields associated to the mark representation Fields in mark: mode, style, color.foreground, color.background