Parallel Object

This command can be applied to any open or closed polygon. The command is either available as an action on the Modify Object dialog or directly from the context menu of an object.

This command generates a new object of the selected type parallel to the selected object. It can be defined whether the new object shall be generated to the left or to the right or to both sides of the selected object. Furthermore, the distance of the new object from the geometrical axis of the selected object has to be specified. The meaning of „left“ and „right“ refers when looking from the first to last point.

Distance (m)

The distance refers to the entered polygon line. Particularly in the case of roads, this distance refers to the center axis of the road (and not to the roads curb).

Option „Distance from the curb/border“

Especially in the case of roads and railways, this option considers the specified „additional width“ specified for the appearance of the roads (see Common Input Data in the CadnaA Reference Manual) or the „Additional Width left/right“ entered on dialog Road: Geometry (see Common Input Data, Additional Width left/right in the CadnaA Reference Manual).

Example

Polygon around line-objects

Applying the command Parallel Object to an open polygon, e.g. to a road, and by selecting a closed polygon as object type (e.g. an „Area of Designated Use“), and by selecting both options „Left“ and „Right“ from the object, CadnaA inserts the new closed polygon around the road object.

Station Range

By defining a station range (see Generate Station) the parallel object will just be generated in this defined range. In case the height of the original line object is defined with different heights at the first and the last point, the height of the new parallel object will be interpolated from these two heights, considering the specified station range.