Use these options when creating a boundary. They are available from the Create Boundary command pane. Options

Type a unique name for the boundary.

Select the layer on which you want to boundary to reside.

You can also select <New> to create a new layer for the boundary.

Polygon - Select this to define the boundary by drawing a polyline around an area.

Alignment corridor - Select this to define the boundary by specifying an offset from a selected alignment.

Polygon options

Pick a point in the view, or type a coordinate or point ID in the box to draw the first line of the boundary.

Pick a point in the view, or type a coordinate or point ID in the box to draw additional lines along the boundary.

Open polygons will be closed when you click in the Name box to begin a new boundary, or when you close the command.

Alignment corridor options

Select the alignment around which to create the boundary corridor.

Pick points in the view, or type distances in the boxes to specify the left and right boundaries of the corridor parallel to the alignment.

Note: Since the alignment itself denotes a zero offset, typically the left offset value will be a negative number, unless you want to create a corridor on only one side of the alignment, such as for a sidewalk.

Check this box to create the boundary only between specific stations along the alignment.

Pick points along the alignment, or type values in the boxes to specify the first and last stations in the corridor.

Boundary appearance options

Select Yes if you want to fill the boundary with a color.

Select the fill color from the list. This option is only available if you have selected Yes in the Draw filled box.

Select the transparency of the boundary fill color. The higher the number the greater the transparency. This option is only available if you have selected Yes in the Draw filled box.