Edit Feature Settings - Rail Dialog Box

Rail Line Options

Rail Line Object Type

Specifies the object type used for the generated rail lines. Select either 3D Polyline or Feature Line.

Distance Between Rails

Specifies the distance between the left and right rail lines. Click in the Value column and enter a length or click and select a length in the drawing.

From Parent Alignment Start

Generates the rail line from the parent alignment start station. Select Yes or No.

To Parent Alignment End

Generates the rail line to the parent alignment end station. Select Yes or No.

Creation Method

Specifies how the incremental vertices are added to the rail lines. Select either Interval or Tolerance.

Create Left Rail

Generates a rail line to the left of the parent alignment. Select Yes or No.

Create Center Rail

Generates a rail line on the parent alignment. Select Yes or No.

Create Right Rail

Generates a rail line to the right of the parent alignment. Select Yes or No.

Interval Settings

Alignment - Along Tangents

Specifies the insertion frequency for vertices along the tangent portions of a rail line. Click in the Value column and enter a length or click and select a length in the drawing.

Alignment - Along Curves

Specifies how the frequency for inserting vertices along curves is determined.

• By Curvature: Horizontal baseline curves are tessellated using the Mid-Ordinate Distance To Define Curvature value. Stations are created along the tessellated curve at each point where the tessellation touches the curve, as shown in the following illustration:
  
• At An Increment: Stations are placed along the curve at the value specified in the Curve Increment field.
• Both: Uses both the By Curvature option and the At An Increment option.

Alignment - Curve Increment

Specifies the insertion frequency for vertices along curves. The Along Curves setting must be set as At Increment or Both to change this setting. Click in the Value column and enter a length or click and select a length in the drawing.

Alignment - Mid-ordinate Distance to Define Curvature

Specifies the mid-ordinate distance for the rail line segments along curves. Click in the Value column and enter a length or click and select a length in the drawing.

Alignment - Along Spirals

Specifies th insertion frequency along the spiral portion of an alignment. Click in the Value column and enter a length or click and select a length in the drawing.

Note: This setting is not used when a feature line is specified for the horizontal baseline.

Alignment - At Horizontal Geometry Points

Specifies whether the vertices should be inserted at horizontal baseline geometry points where the horizontal baseline geometry changes (such as the start of a curve).

Alignment - At Cant Critical Points

Specifies vertices on the rail line that correspond to the cant critical points on the parent alignment.

Alignment - At Mid of Curve

Specifies vertices on the rail line that correspond to the mid-curve points on the parent alignment.

Alignment - At Sample Line Group Points

Creates vertices on the rail line that correspond to existing sample lines along the parent alignment. Click in the Value field and specify the sample line group to use.

Profile - Along Profile Points

Specifies the insertion frequency of vertices along curve portions of the profile geometry. Click in the Value column and enter a length or click and select a length in the drawing.

Profile - At Profile Geometry Points

Specifies whether the vertices should be inserted at vertical baseline geometry points where the vertical baseline geometry changes.

Profile - At High/Low Points

Specifies whether the vertices should be inserted at the high and low points of the vertical baseline geometry.

Tolerance Settings

Tolerance

Specifies the default tolerance to use when you select the Tolerance option in the Rail Lines dialog box. Click in the Value column and enter a length or click and select a length in the drawing.

Default Styles

Default Name Format

Platform Edge Options