OptionalstartStart-marker style override.
OptionalendEnd-marker style override.
OptionalviaIntermediate-stop style override.
⚠️ A via is NOT derived, and cannot be: nothing in a LineString says which of its
vertices are stops. Via points are read from the bound layer's own Point features when
they carry properties.role — which is what a routing plugin publishes through
Layers.setData. Deriving them would mean inventing them.
OptionalshowShow the start marker (default true).
OptionalshowShow the end marker (default true).
OptionalshowShow the intermediate-stop markers (default true).
Per-layer binding: how a polyline layer's endpoints are shown.