Note: This functionality is only available in AutoTURN and AutoTURN Pro.

Edits 2D turn simulations by adding, moving, or deleting nodes or by making small offset, radius, or sweep angle adjustments to corner path or oversteer corner path simulations. 2D turn simulations generated with rear steered vehicles can also be edited to adjust the rear steered part in the simulation. Nodes can occur at the start and ends of simulations as well as in the midpoints of arc path simulations and in the corner portion of corner path and oversteer corner path simulations.

Note: Simulations that contain at least one section created with the IntelliPath or Place Adaptive Simulation tools, or that use the Force Straight Line option, are not supported.

The Path Control tool is intended for making relatively minor adjustments to simulations. For example, if the vehicle runs too close to an object or runs slightly over a curb line, this tool can be used to make the necessary correction without having to recreate the simulation; however, for larger scale changes it is recommended that other editing tools such as Delete Last Section and Continue Simulation be used.

To edit a 2D turn simulation with the Path Control tool, click Path Control on the ribbon or toolbar, pick the simulation you want to edit, and then move the pointer over the simulation to display the nodes that can be manipulated. The following table describes the various actions that can be performed:

Symbol	Tooltip	Description
	Move Node	Moves the selected node to a new location, adjusting the simulation accordingly.
	Add Node	Adds a node to the simulation.
	Delete Node	Deletes a node from the simulation.
	Adjust Start Angle	Adjusts the start angle of the first vehicle position at the start of the simulation. This node is only available in the first vehicle position of 2D arc, corner, or oversteer corner path turn simulations and only for single part vehicles and the first part of multi-part vehicles. This node is not available for simulations generated with vehicles with rear steering.
	Adjust Articulating Angle	Adjusts the articulating angle of the second or subsequent part of the first vehicle position at the start of the simulation. Requires a simulation that was generated with a multi-part vehicle. This node is not available for simulations generated with vehicles with rear steering.
	Adjust Radius	Adjusts the radius of a corner in a corner or oversteer corner path simulation. Entry and exit tangents must be of sufficient length to support modifying the radius. In other words, if the radius needs to be increased, the length of the entry and/or exit tangent must first be increased. This node is not available for reverse corner or reverse oversteer corner path simulations that were generated with multi-part vehicles.
	Adjust Offsets	Adjusts the entry and exit offsets of a corner in a corner or oversteer corner path simulation. Entry and exit tangents must be of sufficient length to support modifying entry and exit offsets. In other words, if the exit offset needs to be increased, the length of the exit tangent must first be increased. This node is not available for reverse corner or reverse oversteer corner path simulations that were generated with multi-part vehicles.
	Adjust Position and Angle	Adjusts the exit tangent length and sweep angle of corner or oversteer corner path simulation.
	Adjust Rear Steering	Adjusts the rear steered part’s path in the simulation. Requires a simulation that was generated with a vehicle with rear steering. Corner and oversteer corner path simulations are not supported.

Notes and Limitations

• Changes are limited by the vehicle's turn limitations and speed.
• The vehicle must pass through all original nodes. This may result in large fluctuations if the vehicle is in continuous motion, traveling faster than a very slow speed, or if the existing nodes are relatively close together. This may be alleviated to some extent by making relatively small alternating adjustments to adjacent nodes.
• Performance may be sluggish for longer simulations if the editing is being done near the beginning of the simulation. This is because all the sections after the edit point must be continuously regenerated as the mouse is moved.
• The vehicle angle at the start position is fixed; however, the start position may be moved.
• The vehicle angle at the end position of the simulation is not fixed; however, its range of variation is limited to 60 degrees from its original angle.
• AutoTURN Pro tools, except Path Control, will not interact with a turn simulation if ERROR is displaying somewhere within the simulation.