Profile String

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Profile String

Icon:

Introduction

This type of String can be used to create sampling of surfaces for output of Long Sections and Cross Sections.

A String includes the following:

Reference to an alignment - this provides a name for the String as well as horizontal geometry controls

Sampling of sections - users can set a spacing (and add sampling at specific stations) to display the elevations of the surface/s in cross sections (surface elevations shown perpendicular to the alignment).

Reference Surface - the String will adopt the elevations of the Reference Surface (for attachment of a Template - see below)

Section Width - here the user determines how far left and right of the alignment to store elevation information

Template - this is completely optional. A Template can be attached to the String and calculated at each cross section sampled. Templates let users extract offset linework relative to the attachment to the alignment (horizontal control) and the Reference Surface (vertical control)

Once a String is created, this command lets users publish Profile View and Cross Section information for the string, referencing the surface selected. Other surfaces can be displayed at the time of plotting.

The station display of information along the profile view, and what cross sections are shown, is dependent on the geometry of the alignment and the String sampling selected. All horizontal geometry points are automatically shown on the profile view and used for setting which cross sections to display.

Once created, the Profile String can be accesed from the Toolspace under the Profile String object collection.

Note: String elevations will be set to adopt the selected surface at each sampled section.

Details

Upon selecting the command the following form is displayed:

Template
Default is None (no template).
Select a Template to attach to the String if desired.
Click on the icon to the right of the picklist to open the Template editor.

Sampled Surface
Select a surface to reference for String elevations.

Elevation Adjustment
Type in a value to set the String elevations a fixed distance above or below the Sampled Surface.

Sample Rate
Sets the sampling along the String. The sampling is used for establishing sections and is used for display of profile view information and cross sections

Tangent
Distance along the tangents to sample the string.

Arc
Distance along arcs to sample the string.

Spiral
Distance along spirals to sample the string.

Section Widths
Surface information is extracted and stored on the sections. This sets the width left and right to store surface data

Left
Distance left of the alignment (positive to the left) to store surface elevations.

Right
Distance right of the alignment (positive to the right) to store surface elevations.

Create/Update String
Create the String.


Template	Default is None (no template). Select a Template to attach to the String if desired. Click on the icon to the right of the picklist to open the Template editor.
Sampled Surface	Select a surface to reference for String elevations.
Elevation Adjustment	Type in a value to set the String elevations a fixed distance above or below the Sampled Surface.
Sample Rate	Sets the sampling along the String. The sampling is used for establishing sections and is used for display of profile view information and cross sections
Tangent	Distance along the tangents to sample the string.
Arc	Distance along arcs to sample the string.
Spiral	Distance along spirals to sample the string.
Section Widths	Surface information is extracted and stored on the sections. This sets the width left and right to store surface data
Left	Distance left of the alignment (positive to the left) to store surface elevations.
Right	Distance right of the alignment (positive to the right) to store surface elevations.
Create/Update String	Create the String.