This property specifies how the shapes or icons will be rendered in relation to the map feature they are representing.
Possible values are:
- center: only one shape/icon will be drawn at the center of the point, line or the area.
- linear: several shapes/icons will be drawn along the line or along the border of the area. For point features, the shape/icon will be rendered at the center of the point.
- points-only: a shape/icon will be rendered at the center of the point. Shapes/icons will not be rendered for line or area features.
- default: acts as center mode for point and area features and linear mode for line features.
specifies that the linear shape mode will be used.