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A dashed and dotted line shows a mountain fold (there may be one or two dots per dash depending on the author). The paper is folded behind itself, this is normally done by turning the paper over, folding a valley fold and then turning the paper back over again. A thin line shows where a previous fold has creased the paper.
Isogonic lines, dashed magenta lines, indicating magnetic variation for a given year; Indications of flashing lights (star with Fl) or marine lights (black dot); Local operations such as parachuting, glider, and ultralight (magenta parachute or glider symbol with letter G, H (hang glider), U (ultralight));
Under each actor or system there are long dotted lines, called "lifelines", which are attached to them. Actions are performed with lines that extend between these lifelines. The connection between an action line and a lifeline shows the interaction between the actor or system.
The Tiền Phong newspaper reported that the nine-dash line appears multiple times in the film. [80] [81] Regarding one scene that features a child-like drawing of a world map with dashed lines, the film's distributor, Warner Bros., defended these claims by stating that the map is a children's drawing and has no intended meaning.
Additionally, in South Korea, turning left across the centre line is prohibited, regardless of whether the centre line is solid or dashed. [59] A blue line means bus (or tram) only. Single line: bus-only lane at a rush hour such as 7:00–9:00 and 17:30–19:30 on weekdays; Double line: bus-only lane at additional times such as 5:00–11:0015: ...
This can take the form of a dotted line (extending from the symbol to the dead-reckoned position) or a dotted circle (bounding the zone the object may have reached since, when the direction of movement is unknown or uncertain). Speed leader (field AJ) Depicts the speed and direction of movement of an object. It is identical to the direction of ...
Line colour can be varied to show other information. Line type refers to whether the basic contour line is solid, dashed, dotted or broken in some other pattern to create the desired effect. Dotted or dashed lines are often used when the underlying base map conveys very important (or difficult to read) information.
For a (reflecting) mirror, the real image is on the same side as the object while the virtual image is on the opposite side of, or "behind", the mirror. In diagrams of optical systems, virtual rays (forming virtual images) are conventionally represented by dotted lines, to contrast with the solid lines of real rays.