Auto Guidance Path Configurations
The Preferred Depth and Vertical Clearance settings influence how the chartplotter calculates an Auto Guidance path. If a section of an Auto Guidance path is shallower than the Preferred Depth or lower than the Vertical Clearance settings, the section of the Auto Guidance path appears as a solid orange line or a red striped line in Garmin Navionics+™ and Garmin Navionics Vision+™ charts and appears as a magenta and gray striped line in previous versions. When your boat enters one of those areas, a warning message appears (Route Color Coding).
You can set the parameters the chartplotter uses when calculating an Auto Guidance path.
Select .
- Preferred Depth
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Sets the minimum water depth, based on chart depth data, that your boat can safely travel over.
NOTE: The minimum water depth for the premium charts (made before 2016) is 3 feet. If you enter a value of less than 3 feet, the charts only use depths of 3 feet for Auto Guidance path calculations. - Vertical Clearance
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Sets the minimum height of a bridge or obstacle, based on chart data, that your boat can safely travel under.
- Shoreline Distance
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Sets how close to the shore you want the Auto Guidance path to be placed. The path may move if you change this setting while navigating. The available values for this setting are relative, not absolute. To ensure that path is placed the appropriate distance from shore, you can assess the placement of the path using one or more familiar destinations that require navigation through a narrow waterway (Adjusting the Distance from Shore).