Subgrade Model Manager

Icon:
Ribbon:	Roads Tab > Modeling Panel > Auto Model dropdown > Subgrade Model Manager

 

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Introduction

This command provides functionality to create subgrade surface models for any design (Auto Model or Model Builder model).

Users can select particular subgrade layers to include or omit in the creation of the subgrade model.  Additionally, users can default the model creation to include only the Datum layer, to build a datum surface.

The Subgrade Model created can be included as a Surface in the drawing, exported as 3D polylines and used to create COGO Points.

The Subgrade Model Manager provides a graphical edting environment displaying the cross sections with each pavement layer (known as a region), the included/excluded section breaklines and the linear Code breaklines.  As well, stations, the design surface and existing surface can be toggled on/off for display.

Users can graphically select and edit:

• Any linear feature (defined by the corners of each subgrade layer extracted as linear breaklines along the string alignment) and choose to Omit or Include as a Linear Breakline.  This will remove/add breaklines to the Subgrade Surface and also be included in a polyline export to the drawing or for point stakeout.
  Users can use this linear feature to project a new Linear Breakline to match the surface (sampled or design) - this is knows as a 'Resolve to Surface' linear breakline
  Users can add additional user breaklines offset vertically and horizontally from this Linear Breakline - this is known as a User Breakline

• Any section (defined as the top/bottom of each layer, drawn perpendicular to the string alignment) and choose to Omit or Include the section as a breakline.  This will remove/add breaklines to the Subgrade Surface.
  A Section can be used to Split the Linear Breakline, for editing over a station range

Both the Linear Breaklines and section lines display differently based on whether they are included or excluded from the model.

A 'Resolve to Surface' and 'User Breakline' can also be displayed differently in the model to distinguish them from other included/excluded linear or sectional breaklines.

When a Linear Breakline or section line is selected it will display bold (and optionally in a different color) in the viewer.  A properties box will also display on the LHS to enable editing of the selected object.  This is a dynamic properties window, displaying inputs relevant to the item selected.

Examples of display when sections and feature lines are selected:

Section Line

Code Feature Line

 

Subgrade Layer Anatomy

The Subgrade Model Manager displays multiple aspects of the subgrade layers, some of which are used to create a Subgrade Model surface.

Below is a screen shot of a single subgrade pavement layer for a path, with the subgrade surface displayed.

The key display elements for creating a subgrade are as follows:

1. Subgrade Regions: these display the cross section material layers at each sampled section on the String.  The layer is displayed if the Code pair exists, as described in the Template.  Optionally users can turn the Region subgrade layer display on/off (both for subgrade layers that are included or not included in the subgrade model output)

2. Sectional Breaklines: these are used in the creation of a Subgrade Model.  Users can select any numbered Layer (described by a pair of Codes) and set whether to Omit (or Include) the bottom - when included this will add a Sectional Breakline for the subgrade layer at the bottom of the layer

3. Code Feature Line (bottom): the feature line for the bottom of any subgrade layer can be included or excluded form the model.  For each numbered layer, users can choose to Omit (or include) the code Linear Breakline for the bottom of the layer

4. Code Feature Line (top): the feature line for the top of any subgrade layer can be included or excluded from the model.  For each numbered layer, users can choose to Omit (or Include) the code Linear Breakline for the top of the layer

Curb type subgrades are also defined by a Code Pair - in this case the two codes would describe the front (lip) and back of the curb.  When those two codes are present the software will provide access to the layers and subgrade details as they are defined in the Template. 

For some subgrade layers, such as for Curbs, it may be desired to include a batter to the surface to describe a vertical/graded cut in the surface.

The key display elements for creating a subgrade with a batter (Resolve to Surface) is as follows:

1. Code Pair: defined by the top front and top back of the curb

2. Code Linear Breaklines (bottom): for a Curb type subgrade the bottom outer code may be an offset horizontally and vertically from the top of curb position.

3. The inner Code Linear Breakline (closest to the centreline) or outer Code feature line (furthest from the centreline) can have a batter (Resolve to Surface) applied.  This wil add another feature line by projecting from the selected Code feature line to the surface (design or sampled) at a defined slope.  These breaklines can be represented differently on screen.

Note: Where no layer has been set for a section of the template, no Subgrade Breaklines or Code Feature Lines will be included in the model.  Adding a zero depth layer will trigger options to include the section breakline and code feature line/s.

Subgrade Linear Breaklines and Surface Models

In order to support the creation of a surface from the subgrade layers, where there may be elevation changes occuring at a Code, the software extracts Code linear features for each subgrade layer and between each code pair, with a small separate (0.005) to facilitate surface triangulation.

At each Code location, there may be two subgrade layer feature lines displayed.  One for the section left of the Code and one for the seciton right of the Code.  It may be required to select both left/right feature strings for changing the omit status at each subgrade layer.  Example below showing the Code for the lip of curb.  There is a code feature line for each subgrade label left and right of the Code location to support the layer depths being different left/right of the Code.

 

Interface

The Subgrade Model Manager form is made up of the following components:

1	Ribbon.  Create and manage subgrade models.  Establish settings and styles, turn display on/off, import and export
2	Dynamic Properties panel.  Displays when an object is selected in the graphical window.  Contents and options depends on the objects selected by the users
3	Graphical enviroment.  This is aninteractive display of the subgrade model breaklines (feature code breaklines and sectional breaklines), subgrade surface and other sectional data. Click on a Linear Breakline or Section Breakline to include, omit or edit the feature.

 

Navigation

There are navigation tools at the top of the graphical display.  When selected, that single nativigation mode will apply (except for the far right icon, which applies a Zoom Extents).

When no particular navigation mode is selected (highlighted), navigation is controlled as follows:

• Orbit (hold down the middle mouse button)

• Zoom (roll the middle mouse button)

• Dymamic Zoom (Shift+middle mouse button)

• Pan (Ctrl+middle mouse button)

• Select (left click mouse button)

• Edit menu (right click mouse button)

Subgrade Model Creation vs Editing

At the time of creation, users are prompted to select a Subgrade Section Style.  This Style establishes which Code/s and which pavement (subgrade) layer/s to include or omit from the model.  The Style also controls which Code/s need a 'Resolve to Surface' to be applied.

To simplify the setup, some default Subgrade Section Styles have been included with the initial install, aimed at creating a valid subgrade model automatically for most design situations.

When no particular navigation mode is selected (highlighted), navigation is controlled as follows:

• Orbit (hold down the middle mouse button)

• Zoom (roll the middle mouse button)

• Dymamic Zoom (Shift+middle mouse button)

• Pan (Ctrl+middle mouse button)

• Select (left click mouse button)

• Edit menu (right click mouse button)

Video Resources

These videos, hosted on Youtube, provide an overview of the software fucntionality for Subgrade modeling, including details around using Subgrade Model Manager: https://www.youtube.com/watch?v=BUV7Ifne5UU&list=PLa40O20aqztMssAKlSwFAF1nbcOb8WlGi&index=2

Details

Upon selecting the command the following form is displayed (if no model is created, the screen will display only a background):

RIBBON TABS
Home Tab	Includes core controls for managing the display and general operations
Refresh	If 'Dynamic Update' is unticked, click this button to update the subgrade model following a change to the design model
Manage Models Panel
Sub Model	Select the Sub Model to be displayed.
Dynamic Update	If ticked on the Sub Model will update as changes are made in the drawing.
Build Surface
Create Sub Model	Upon selecting the command the following form is displayed:   Model Name Type to set the name of the new sub model. Description   Base Model Select the model for the sub model to be built from. Sampled Surface   Section Style   Section Filter Rate   Include Grading Strings If ticked on, grading strings will be included in the sub model. Surface Creation Panel      Build Surface If ticked on, a surface will be created from the Sub Model.    Include Sectional Breaklines      Apply Boundary Retraction      Max. Triangle Length   OK Save and exit.
Model Properties	Click to edit the properties of the currently Sub Model. See Create Sub Model for details.
Display Panel
Style	Set the style to control how the sub model is displayed.
Regions	If ticked on,
Omitted Regions	If ticked on,
Sectional Breaklines	If ticked on, sectional breaklines are displayed.
Linear Breaklines	If ticked on, linear breaklines are displayed.
Omitted Breaklines	If ticked on, breaklines that have been omitted from the sub model are displayed.
Existing Surface	If ticked on, the existing surface is displayed at each section.
Design Surface	If ticked on, the design or base surface is displayed at each section.
Subgrade Surface	If ticked on, the subgrade surface is displayed.
Station Labels	If ticked on, station labels are displayed at each section.
Section Labels	If ticked on, labels are displayed for materials and depths at each section.
String Labels	If ticked on, labels are displayed with the string names.
Display Manager	Upon selecting the command the following form is displayed:   File Menu      Import Styles      Export Styles   General Tab      Background Click to select a color for the Subgrade Model Manager background.    Selection Color Click to select a color to display items selected in Subgrade Model Manager.    Existing Surface Style Select a Style to display the Existing Surface.    User Breakline Style Select a Style to display the User Breaklines.    Surface Resolve Style Select a Style to calculate the Surface Resolve.    Section Label Style Select a Style to display the Section Labels.    String Label Style Select a Style to display the String Labels.    Design Surface Style Select a Style to display the Design Surface.    Subgrade Surface Style Select a Style to display the Subgrade Surface.    Station Label Panel         Station Label Style Select a Style to display the Station Labels.       Label Prefix Type to set a prefix for Station Labels.       Label Offset Type to set the offset of Station Labels.    Performance Mode      Show All Sampled Sections      Set Current Viewer Settings as Default      Reset Display   Materials Tab    Material List Click delete to remove a material, change style in drop down ect...    Add Materials Click to add a new material to the list. The following form is displayed:   Enter name for new Line Style Type to set the name of the new Material. OK Click to create the new Material. Cancel Exit without saving.    Add Materials From Model      Material Groups Click to open the Material Groups Editor. Line Styles Tab    Name Select the Line Style to apply and/or edit.    Add New Line Style   Click to create a new line style. The following form is displayed:   Enter name for new Line Style Type to set the name of the new Material. OK Click to create the new Material. Cancel Exit without saving.    Delete Line Style   Click to delete the selected line style.    Line Pattern Click to select the line pattern.    Line Weight Type to set the line weight.    Color Click to set the color of the line. Line Patterns Tab    Name Select the Line Pattern to apply and/or edit.    Add New Line Pattern   Click to create a new line pattern. The following form is displayed:   Enter name for new Line Pattern Type to set the name of the new Line Pattern. OK Click to create the new Line Pattern. Cancel Exit without saving.    Delete Line Pattern   Click to delete the current line pattern.    Is Solid      Pen Down Length      Pen Up Length   Text Styles Tab    Name Select the Text Style to apply and/or edit.    Add New Text Style Click to create a new Text Style. The following form is displayed:   Enter name for new Text Style Type to set the name of the new Text Style. OK Click to create the new Text Style. Cancel Exit without saving.    Delete Text Style Click to delete a text style. (The Default style cannot be deleted)    Font Select the text font used for labels.    Style Select the text Style used for labels.    Height Type to set the height of text for labels.    Color Click to select the text color for labels.    Subgrade Text Displays a preview of the text font, style, height and color selected. Save and Close Save and exit.
Tools Tab	Includes tools for managing the calculation of the sub model.
Tools Panel	Contains tools to edit and reset the Subgrade Model.
Linear Breakline Editor	Click to open the Linear Breakline Editor form:   String Name Select the string to list breaklines for. Filter 1 Select True or False to apply to the chosen filter. Filter 2 Select a filter to apply from the following: None   Code   Is Bottom?   Omitted? Filter by whether the Breakline is omitted from the Sub Model. Resolves to Surface? Filter by whether the Breakline resolves to the surface. Surface (Cut) Filter by the surface the Breakline resolves to in Cut situations. Grade (%) (Cut) Filter by the Surface Resolve slope of the breakline in Cut situations. Depth Offset (Cut)   Surface (Fill) Filter by the surface the Breakline resolves to in Fill situations. Grade (%) (Fill) Filter by the Surface Resolve slope of the breakline in Fill situations. Depth Offset (Fill)   Show Omitted When ticked on, breaklines omitted from the sub model are displayed in the table. Show Included   Sub Breakline Data   Click to open the Sub Breakline Data form:   Refresh Click to refresh the data in the table. Plot to Drawing Click to create the table in the Drawing, then click in the drawing to place the AutoCAD Table. Export Click to export the table to a .csv file. Table Displays a list of segments for the selected breakline.    Easting      Northing      Elevation      Code   Override Allows the user to override the settings of breaklines selected in the table.    True or False?      Filter      Apply   Omitted On/Off Click to change the omitted status of the breaklines selected in the table. Surface Resolve On/Off Click to change the Surface Resolve status of the breaklines selected in the table. Reset to Bottom Datum   Close Save and exit.
Compute Section Style	Click to reset all strings to the current Section Style. The following form is displayed:   Yes Click to apply and exit. No Click to exit without making changes.
Reset All (Bottom Datum)	Click to reset all strings to use the bottom datum. The following form is displayed:   Yes Click to apply and exit. No Click to exit without making changes.
Reset Surface Resolve	Click to reset surface resolve parameters for all strings. The following form is displayed:   Yes Click to apply changes and exit. No Click to exit without making changes.
Styles Panel
Section Style	Click to open the Subgrade Section Styles form:   Style Select the Subgrade Section Style to apply and/or edit. Add Style Click to create a new Subgrade Section Style. The following form will be displayed:   Enter name for new Subgrade Section Style Type to set the name of the new Subgrade Section Style. OK Click to create the new Subgrade Section Style. Cancel Exit without saving. Delete Style Click to delete the selected Subgrade Section Style. Include Bottom Layer Only (first load)   Only process listed code pairs   Check Section Intersects (on surface resolve)   Add top breaklines for disconnected sections   Table Lists code pairs and their associated styles.    Code 1 Lists the first code in the code pair.    Code 2 Lists the second code in the code pair.    Layer Index      Included Style Select the line style for breaklines included in the Sub Grade Model.    Omitted Style Select the line style for breaklines omitted from the Sub Grade Model.    Layer (CAD)      Surface Resolve When ticked on, breaklines for the code pair will resolve to the surface.    Surface Set the surface for the breakline to resolve to.    Resolve Type Select the surface resolve type: Inner   Outer   Both      Surface Slope      Default Omit Bottom      Default Omit Top      Include Section Breakline When ticked on, section breaklines for the selected code pair are included in the Sub Grade Model. Add Section Click to add a new Section to the table. The following form will be displayed:   Enter Code 1 Type to set the first code for the section Code Pair. OK Click to proceed. Cancel Exit without saving.   Enter Code 2 Type to set the second code for the section Code Pair. OK Click to proceed. Cancel Exit without saving.   Enter Layer Index Type to set the Layer Index for the section. OK Click to proceed. Cancel Exit without saving.   Yes Click to toggle on Default Bottom Omit for the section. No Click to toggle off Default Bottom Omit for the section.   Yes Click to toggle on Default Top Omit for the section. No Click to toggle off Default Top Omit for the section. Add from Model Click to read Section Breakline code pairs from a Model and add them to the table. The following form will be displayed:   Model List Select the Model to read section breakline code pairs from. Select Click to confirm the selected Model. Add Default   Save and Close Save, exit and rebuild the Sub Model.
View Tab	Includes controls for managing the display of cross sections
String Name	Select the string to view.
Station	Select a station to view the cross section.
Camera Length
Camera Height	Type to set the height of the camera.
Previous	Click to view the previous cross section.
Next	Click to view the next cross section.
Import Tab	Includes core controls for managing the display and general operations
Pipe Networks Panel
Show Pipe Networks	If ticked on, Pipe Networks are displayed in the Subgrade Model Manager graphical window.
Setup Pipe Networks	Click to open the Pipe Network Display form:   Network List Displays a list of Pipe Networks. Select a network to edit. Network Panel      Name Type to set the name of the Pipe Network for Subgrade Model Manager.     Display Panel         On Tick to display the Pipe Network in the Subgrade Model Manager.       Off Tick to turn off the display of the Pipe Network.    Color Panel Select either color or material for the display of the Pipe Network.       Color Click to set the color of the Pipe Network.       Material Click to set the material of the Pipe Network.    Structure Type Panel         Cube Tick to display the Network structures as rectangular objects.          Width Type to set the width of the structures.          Height Type to set the height of the structures.       Cylinder Tick to display the Network structures as cylindrical objects.          Radius Type to set the radius of the sturctures.    Label Panel Tick on to display labels in the Subgrade Model Manager.       Structure Labels Select the Structure Label Type to be displayed.       Pipe Labels Select the Pipe Label Type to be displayed. Close Save and exit.
External Files Panel
Import CAD
Load CAD
Manage CAD	Click to open the Manage CAD form:   CAD Files Table Displays a list of    File Name      Load   Remove CAD File   Add Current DWG   Apply
Unload CAD
Export Tab	Includes controls share data outside of Subgrade Model Manager.
General Panel
Export	Export the Sub Grade Model as a .obj, .stl, .las, .html, .pdf, .dwg or .dxf file.
CAD Panel
Polyline Export	Click to open the Polyline Export form:   Prefix   Item 1   Item 2   Item 3   Item 4   Suffix   Seperator   Export Polylines
COGO Point Stakeout	Click to open the Create Cogo Points form:   Code   Add Subbase Code Suffix   Style Panel      Default Point Style      Code Set Table   Create Points Click to create COGO Points.
Sectional Breakline	Graphically select a Sectional Breakline to display the Sectional Breakline Panel.
Station	Displays the station of the breakline along the string.
Code 1	Displays the first Code.
Code 2	Displays the second Code.
Layer Index
Material	Displays the material assigned.
Is Bottom	Indicates whether the selected breakline is the datum.
Create Split
Omit Top
Omit Bottom
Apply to Selection	Click to apply the changes made in the panel to the selected sectional breakline.
Apply Over Range	Click to apply the changes made to sectional breaklines over a range of stations. The following form is displayed:   Start Station Type to set the start station or click the icon to select in the model. End Station Type to set the end station or click the icon to select in the model. Apply Click to apply the edits to all Sectional Breaklines in the specified station range.
Linear Breakline	Graphically select a Linear Breakline to display the Linear Breakline Panel.
Code
Region
Is Bottom	Indicates whether the selected breakline is the datum.
Omitted
Resolve To Surface
Cut Situation Panel	Set the parameters for surface resolve in Cut situations.
Surface	Select the surface to resolve to.
Grade (%)	Type to set the grade for the surface resolve.
Depth Offset
Fill Situation Panel	Set the parameters for surface resolve in Fill situations.
Surface	Select the surface to resolve to.
Grade (%)	Type to set the grade for the surface resolve.
Depth Offset
User Breaklines	Breakline Table Displays a list of User Breaklines.    Code      Start Station      End Station      Slope Type      Slope Value      Offset Type      Offset Value   Add User Breaklines Click to add a User Breakline in the table. Pick Start/End Station Click to select the start and end stations for the selected User Breakline in the model. Add Cut Ranges   Add Fill Ranges   OK Save and exit.
Apply	Click to apply changes to the selected Sectional Breakline.
Sub Breakline Data	Click to open the Sub Breakline Data form.