A method of providing swing control of a construction machine 53 having a worktool rotatable about a swing axis 60, a controller and a graphical user interface 31. Firstly, the controller displays to the operator, on the graphical user interface, one or more lines 50 providing longitudinal and latitudinal information of a worksite. Then the operator selects one of the one or more lines 51 using the graphical user interface. Then in response to operator inputs, the controller operating to swing the worktool about the swing axis. Finally, the controller automatically stops the swing of the worktool about the swing axis when the worktool reaches a predefined angular orientation relative to the selected line. Optionally, the lines are 2D lines, 3D lines, formed by two surfaces joining, one or more straight lines, one or more curved lines, or more lines do not contain height information. Optionally, controller determines longitudinal and latitudinal information of the construction machine from a location sensor and rotational posture information of the construction machine from a rotational posture sensor.
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