The export function also exports the line type (dash pattern) definition into the DXF/DWG file. For that reason the line types in AutoCAD are conform to the dash patterns in Hull.

In AutoCAD the line types are indicated with names instead of numbers. With 'AutoCADLineType' these names are specified.

Already in AutoCAD defined line types with corresponding names are overruled with the dash pattern definitions of Hull. So, it can be important to match these dash patterns to each other.