Steps:
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Screen capture from Navionics ChartViewer
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Follow procedure Image Overlay Google Earth - YouTube (if transparency not working disable “Use photorealistic atmosphere rendering”)
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Make points in Google Earth and export them to kml file.
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In Mission planner “Load KML file”
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Recreate waypoints in desired direction
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Export .txt or .waypoints file
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Import exported file into QGroudcontrol
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Delete content from poi.txt file