All Line Parameters

Basic Line Parameters

Basic Appearance Line
Line Visibility	Tick to activate the line visibility and show lines in the map view.
Line Color	Choose the line color, use the Color Picker.
Line Transparancy	Set the transparency percentage of the line from opaque to completely transparent.

Line

Line
Line Width	Enter a line width and select a size unit.
Line Style	Select a line style.
Style Length	Enter a style length repetition and select a size unit.
Join Type	Select the Join Type for corners
Cap Type	Select the Cap Type for line-ends

Join Type / Cap Type

Join Type and Cap Type almost have no influence for thin lines. For a thicker line they have more impact.
The Cap Type also has his influence on the visibility of the Line Style.

Join Type	Cap Type

Symbol Repetition

Symbol Repetition
Visibility	Sets the symbol repetition on/off
Type	Select the type of repetition (interval, joins, endpoints, part middle and segement middle). See Symbol Repetition Type.
Interval	Enter the interval length and select a size unit.
Offset	Enter the offset length and select a size unit. The offset is the distance between the beginning of the line and the the appearance of the first symbol of the symbol repetition. See Wikipedia Offset (computer science).
Orientation Type	Select the symbol orientation (Absolute, Relative, RelativeAlternate). See Symbol Repetition Orientation Type.

Click on the “Symbol” button to modify All Point or Symbol Parameters.

Symbol Repetition Type

Type
Interval	Place symbol at regular intervals.
Joins	Place symbols on each point or vertex.
Endpoints	Place symbol on the line ends.
Part Middle	Place symbol on the line middle.
Segment Middle	Place symbol on each segment middle.

Symbol Repetition Orientation Type

Orientation Type
Absolute	A constant orientation.
Relative	An orientation related towards the orientation of the line at each spot a symbol is drawn.
RelativeAlternate	As relative, but alternating with a 180 DEG switch for consecutive symbols.

Examples

Used Symbol:

Absolute	Relative	RelativeAternate