Line types define the dash pattern used to draw lines and other line-based objects. An object's Line type is typically selected by assigning an object to a layer. All objects on a given layer are drawn using the Line type property of that layer. To learn more about layers and how Line types are associated with layers, see Layer definitions.

By default, when an object is created, its Line type property is set to "By Layer" which means that the object will be drawn using the Line type assigned to that layer. After the object has been created, its Line type property can be overridden using the Properties tool.

Line types for layers are selected by name in the Layer definitions settings panel. Line type overrides for objects are set using the Properties tool. There are several predefined Line types (Solid, Dash, Centerline, etc.). You can modify any of the existing Line types in this settings panel. You can create additional Line types by tapping the Add a new line type button.

Line types are defined as a set of alternating dash and gap segments.

When a Line type is selected from the Line type list in the settings panel, a sample line drawn using the selected Line type is shown at the top of the panel. If the Line type definition is changed, the sample line is redrawn using the new definition.

The following properties can be defined for each layer:

Line type name

Each Line type has a name. This name is used to select the Line type. Line type names must be unique within a drawing. Line types can be renamed in this panel by tapping the name in the list of definitions and entering a new name. Once a Line type has been associated with an object or layer, changing its name will not affect that association.

[Dash, Gap] Lengths

Line types are defined as a series of alternating dash and gap length pairs. This list must have an even number of entries (since it is a list of pairs). A new pair can be added to the list by entering a dash length in the empty text field at the end of the list. A dash/gap pair can be removed by setting its dash length to zero. If a Line type contains no dash/gap pairs it will be rendered as a solid (continuous) line.