I need to view a polyline constructed from waypoints of a gps track that has self intersections in curves; like an exit loop from a highway.
I need to visualize it in a way that shows which part is above the other in the intersection.
Option 1: Style with solid color
This does not work, as the intersection is filled without delimiting the side of the path.
Option 2: Style with some predefined road from QGIS:
Almost doesn't work, as each segment is surrounded by the line, not only at both sides but also in the head and tail of the segment.
Option 3: Enabling symbol levels:
This does not fit my need as it merges the intersections, thus preventing from seeing the precedence.
I've managed to do the some styling after finding this article in http://planet.qgis.org: http://nathanw.net/2012/07/22/qgis-style-tricks-using-styles-to-help-fix-kerb-line-directions/
The key for me was as easy as using a style of a marker line, with a single triangle marker, and a solid line. Then, I applied transparency so that street names are visible.
This is the result:
What other option could I try?