Polyline
StrokeColor
StrokeColor: string | CanvasPattern | CanvasGradient
StrokeWidth
StrokeWidth: number
ShowArrow
ShowArrow: boolean
Tooltip: string
TextStyle
可選LaterAddToSource
LaterAddToSource?: boolean
可選ReturnType
ReturnType?: "SELF"
可選LineDash
LineDash?: boolean | number[]
線圖素參數。