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OpenTunnel Designer Help

OpenTunnel Designer Help
  • OpenTunnel Designer Help
    • What's New
      • What's New in 2026 Release
      • What's New in 2025 Release
      • What's New in 2024 Update 2 Release
      • What's New in 2024 Update 1 Release
    • Let's Begin With OpenTunnel Designer
      • Quick Overview
        • Ribbon Interface
          • Ribbon Controls
        • Quick Access Toolbar
          • Customize Quick Access Toolbar
      • File tab and Backstage View
        • Tools
        • Settings
          • Users
            • Preferences
          • System (PC)
          • File
            • Color Table Dialog
              • Color Book Modify Color Dialog
                • Modify Color Dialog, True Color Tab
                • Modify Color Dialog, Color Book Tab
            • Design File Settings
              • Regression Slues Settings
          • Configuration
        • Properties
        • Print
        • Import
          • Common File Types
          • Exchange File Types
          • 3D Modeling File Types
          • Geospatial File Types
        • Export
          • Common File Types
          • Exchange File Types
          • 3D Modeling File Types
          • Visualization File Types
          • Geospatial File Types
        • Civil Tools
          • Downgrade DGN
          • Civil File Manager
            • Civil File Upgrade
          • DGN Checker
        • Publish iModel
        • Help
      • Important Microstation Concepts
      • ProjectWise Integration
      • Program Limitations
      • Using the Work Page
        • Manage Configuration Dialog
          • New Configuration Dialog
          • Connect to a New Configuration
          • Edit an Existing Configuration
        • Work Page
        • Create WorkSpace Dialog
        • Create WorkSet Dialog
          • WorkSet Templates
        • Edit WorkSet Dialog
        • Assign Project to WorkSet dialog
        • File Open dialog
        • (Technology Preview) Configuration Creator
          • To create a new Configuration
      • Fundamentals
        • Configuration Concepts
      • Subscription Entitlement Service
        • Bentley Licensing Tool
          • Options Dialog
          • To Reserve a License
          • To Release a License
        • Bentley Activation Wizard Dialog
    • OpenTunnel Designer Workflows
      • OpenTunnel Designer Workflow
        • Home
          • Primary
            • Managing Workset Data with Explorer
              • Introduction to Explorer
              • Common Tools
                • To Zoom to an Item
                • Querying Data in Explorer
              • File
              • Items
              • Reports
              • Resources
              • Sheet Index
              • Links
                • Managing Link Set in Explorer
                  • Working with Link Sets
                    • To Create a Link Set
                    • To Copy a Link Set
                    • To Import a Link Set from Another File
                    • To Rename a Link Set
                    • To Delete a Link Set
                  • Create a New Link Set Dialog
            • Attach Tools Dialog
              • References Dialog
              • Raster Manager
              • Point Cloud
              • Reality Mesh Attachments
            • Models Dialog
            • Level Display Dialog
            • Level Manager Dialog
            • Properties Dialog
            • More
          • Selection
            • Element Selection Tool
            • Select All Tool
            • Select None Tool
            • Fence Toolbox
              • Place Fence
              • Modify Fence
              • Manipulate Fence Contents
                • Copy Element
                • Using Handles
                • Using the Reset Pop-Up Menu
                • Working with AccuDraw
                • Special Fence Manipulations
                • Move Element
                • Scale
                • Rotate
                • Mirror
                • Construct Array
                • Using Multi-Lines
                • Stretch Element
                • Levels Configuration Variables
                • Preferences Dialog, Input Category
                • Context Menus
              • Delete Fence Contents
              • Drop Fence Contents
                • Drop Complex Status
              • Save Fence to File
              • Named Boundaries from Fences
            • Lock Tool
            • Unlock Tool
            • Bring to Front Tool
            • Cut Tool
            • Copy Tool
            • Paste Tools
        • Construction
        • Utilities
        • Civil
          • General Tools
            • General Geometry Import / Export
              • Import Geometry
              • Import Horizontal Geometry from ASCII File
              • Import Vertical Geometry From ASCII File
              • Export Geometry
            • General Geometry Design Elements
              • Set Active Profile
              • Set Active Terrain Model
              • Select By Graphical Filter
              • Create Civil Rule Feature
            • General Geometry Standards
              • Set Feature Definition
              • Features Definition Toolbar
              • Match Feature Definition
              • Civil Message Center
              • Set Element Information
            • Civil Accudraw
              • Getting Started with Civil Accudraw
                • Coordinate Display
                • Compass
                • Differences from MicroStation AccuDraw
              • Toolbox Civil Accudraw
                • Pop-up Toolbox
                • Accudraw Shortcuts Key-ins
              • Horizontal Ordinates
              • Z Ordinates
              • Angle Syntax
              • Settings Overview
                • Settings Operations
                • Settings Display
                • Settings Coordinates
                • Settings Favorites
            • Activate Rules
            • Geometry Reports
              • Horizontal Geometry Report
              • Map Check Report
              • Station Offset Report
              • Point Feature Station Offset Elevation Report
              • Station Base Report
              • Superelevation Report
            • Civil Analysis
              • Analyze Point
              • Analyze Between Points
              • Analyze Volume
              • Inverse Points
                • Input Types
                • To Inverse between Points
                • To Inverse Points on an Arc
                • To Inverse Points Radially
                • To Inverse Points Perpendicular between Points
                • To Inverse Points Perpendicular by Element
                • To Inverse Points by Element
              • Analyze Trace Slope
              • Analyze Pond
              • Element Component Quantities
              • Create Cut Fill Volumes
                • To Create Cut and Fill Volumes
              • 3D Drive Through
          • Horizontal
            • Horizontal Geometry Line
              • Line Between Points
              • Line to Element Tools
                • Line to Element
              • Line from Element Tools
                • Line From Element
              • Line between Arcs
              • Chamfer Between Points
            • Horizontal Geometry Arc
              • Circle
              • Arc Between Points
              • Arc to Element Tools
                • Arc to Element
              • Arc from Element Tools
                • Arc From Element
              • Arc Between Elements Tools
                • Arc Between Elements
              • Arc Between Arcs
              • Complex Transition between any Element and Arc
            • Horizontal Geometry Point
              • Place Point
              • Equal Space Points
                • Workflow: To Place a Point
            • Offsets and Tapers
              • Single Offset Entire Element
            • Reverse Curves
              • Reverse Curve by Angle
              • Reverse Transition
            • Horizontal Geometry Spiral
              • Spiral from Element
                • Options
              • Spiral between Elements
            • Horizontal Geometry Modify
              • Start Station
                • To Station an Element
              • Add Station Equation
                • To Add Station Equation
              • Copy Element
              • Insert Fillet
              • Append Element
            • Horizontal Geometry Complex
              • Complex by Element
              • Complex by PI
              • Complex Redefine
              • Define by Best Fit
          • Vertical
            • Open Profile Model
            • Set Active Profile
            • Multiple Profile
              • Open Multiple Profile
              • Multiple Profile Settings
              • Add Zone
              • Tracking and Analysis
                • Synchronize View
                • Tracking and Analysis Report
              • CAD Element
              • Edit Vertical Alignment
            • Profile Creation
              • Profile From Surface
              • Quick Profile From Surface
              • Project Profile to Element
              • Project Profile Range to Element
              • Project Extended Profile
              • Place Profile Intersection Point
            • Vertical Geometry Line
              • Profile Line Between Points
              • Profile Line to Element
              • Profile Line from Element
              • Profile Line between Elements
            • Vertical Geometry Curves
              • Profile Curve Between Points
              • Profile Curve to Element
              • Profile Curve From Element
              • Profile Curve Between Elements
            • Vertical Geometry Element Profiles
              • Quick Profile Transition
              • Profile by Constant Elevation
              • Define Profile by Slope from Point
              • Profile by Slope From Element
              • Profile by Variable Slope from Element
              • Profile by Vertical Offset from Element
              • Profile by 3D Element
            • Vertical Geometry Modify
              • Profile Insert Curve
              • Append Profile Element
            • Vertical Geometry Complex
              • Profile Complex by Elements
              • Profile Complex by PI
              • Define Profiles by Best Fit
              • Profile Insert Curve
              • Append Profile Element
              • Profile Reverse Transition
              • Profile Offset Transition
          • Superelevation
            • Superelevation Overview
              • Superelevation General Workflow
              • Explorer - Superelevation
              • Properties - Superelevation
            • Create
              • Create Superelevation Sections
              • Create Superelevation Lanes
                • Workflow For Through Lanes
                • Workflow For Auxiliary Items
            • Calculate
              • Calculate Superelevation
              • Edit Superelevation Rule File
              • Import Superelevation
              • Assign to Corridor
            • Edit
              • Insert Station Cross Slope
              • Superelevation Editor
            • Superelevation Report
            • Open Superelevation View
          • Open Cross Section View
          • Terrain Model
            • Terrain Import
              • Create From File
                • Create From File Workflow
                • Geographic Coordinate System Dialog
                  • Properties Dialog
                    • To Review or Modify Information About an Element
                • Define Placemark Monument
                • Select Geographic Coordinate System
                • Geographic Coordinate System Properties Dialog
                  • Reprojecting Design Data
                    • To Set Reprojection Settings
                    • Reprojection Settings Dialog
                    • Vertical Datum
                      • To Change the Vertical Datum of a GCS
                  • Local Transforms
                    • Workflow for Local Transforms
                    • Local Transforms and Pushing or Pulling Geographic Coordinate Systems to or from Reference Attachments
                • Select Geographic Coordinate System Dialog
                • Geographic Coordinate System From Placemarks Dialog
                • Geographic Coordinate System From Reference Dialog
                • Set Geographic Coordinate System In References Dialog
                • Reprojection Settings Dialog
              • Create From Graphical Filter
                • Create By Graphical Filter Workflow
                • Terrain Filter Manager
              • Create From Cesium World Terrain
            • Set Active Terrain Model
            • Add Features
            • Remove Features
            • Change Feature Type
            • Edit Model
            • Add Terrain Model Boundary
            • Remove Terrain Model Boundary
          • 3D Geometry
            • Create 3D By Plan Profile
            • Create 3D By Slope To Target
            • Create 3D By Volume
        • Analysis And Reporting
        • View
        • Collaborate
        • Help
      • Rebar Modeler Workflow
      • Geospatial Context Workflow
        • Home Tab
          • Feature Services
            • Feature Service Manager Dialog
            • Query Features
            • Clear Features
            • Clear All Features
            • ArcGIS Enterprise Portal Configuration
            • Esri ArcGIS (TM) REST Map and Image Services - Creating a New Map Dialog
              • ESRI ArcGIS (TM) Map Service Manager Dialog
        • View
        • Drawing
        • Drawing Aids
        • Help
      • Drawing Workflow
        • Home
        • View
        • Annotate
          • Text Toolbox
            • Place Text
              • To Place Text at the Active Angle and Active Text Settings
              • To Bypass the Text Editor Window
              • To Place Fitted Text
              • To Fill In Empty Text Node(s)
              • To Place Text That Wraps to a Graphically-Defined Width
            • Place Text Along
              • To Place Text Above or Below an Element
              • To Place Text on an Element
              • To Place Text Along an Element
            • Place Note
              • To Place a Note
              • To Place a Callout
            • Edit Text
              • To Edit Text
            • Spell Checker
              • To Search for and Correct Spelling Errors in the Active Model
              • To Search for and Correct Spelling Errors in a Text Element, Text Node, Tag, Dimension, Note or Symbol
              • To Search for and Correct Spelling Errors in a Selection Set
              • To Search for and Correct Spelling Errors Within a Fence Contents
              • To Search for and Correct Spelling Errors Before Placing Text
              • To Add a User Defined Dictionary
              • To Add the Currently Flagged Word to the User Dictionary
              • To Add a Word to the User Dictionary
              • To Delete a Word from the User Dictionary
              • Spelling Dialog
              • Manage User Dictionary Dialog
            • Change Text Case
              • To Change the Case of Text
              • To Change the Case of Text with a Fence
            • Display Text Attributes
              • To Display Attributes of a Text Element
            • Match Text Attributes
              • To Match the Active Text Settings to the Attributes of a Text Element
            • Change Text Attributes
              • To Change a Text or Tag Element's Attributes (Those That Are Set to On)
            • Place Text Node
              • To Place a Text Node
            • Copy and Increment Text
              • To Copy and Increment Text
            • Copy Enter Data Field
              • To Copy an Enter Data Field
            • Copy and Increment Enter Data Field
              • To Copy and Increment an Enter Data Field
            • Fill In Single Enter Data Field
              • To Fill In an Enter Data Field
            • Automatic Fill In Enter Data Fields
              • To Automatically Fill In Enter Data Fields
            • Update All Fields
              • To Update All Fields in the Text Element(s)
            • Drop Text
              • To Convert Text to Individual Elements
          • Labels
            • To Place a Label with a Leader
            • To Place a Label Without a Leader
            • Place Label
            • Filtering Cell Names in the Place Label Tool
          • Dimensioning
            • Dimension Elements
            • To Turn On or Off the Display of Dimensions in a View
            • To Turn On or Off the Display of Dimensions in All Open Views
            • Dimension Styles
              • To Create a Dimension Style
              • To Make a Dimension Style the Active Style
              • To Save a Dimension Style to the DGN File
              • To Copy a Dimension Style
              • To Remap Dimension Styles
              • To Delete Dimension Styles
              • To Reset a Dimension Style
              • To Modify Settings for a Single Dimension Style
              • To Modify Settings for Multiple Dimension Styles
              • To Compare Two Dimension Styles
              • To Display Differences Between Two Dimension Styles
              • To Turn the Preview Pane On or Off
              • To Control Dimensions Displayed in the Preview Pane
              • To Turn the Dimension Styles List Box On or Off
              • Dimension Styles Dialog
                • Dimension Styles Dialog Icons
                • Dimension Styles Dialog, Geometry Tab
                • Dimension Styles Dialog, Units Tab
                • Dimension Styles Dialog, Text Tab
                • Dimension Styles Dialog, Symbology Tab
                • Dimension Styles Dialog, Advanced Tab
              • Remap Elements to Dimension Style Dialog
            • Dimension Style Libraries
              • To Save and Modify a Dimension Style from a Library
              • To Compare a Local Dimension Style with the Dimension Style Library
              • To Display Differences Between a Local Dimension Style and the Dimension Style Library
              • To Import Dimension Styles from Another File or DGN Library
              • To Update Dimension Styles from Dimension Style Libraries
            • Aligning Dimension Styles
            • Associating Dimensions with Elements
              • To Place Association Points
            • Dimensions Toolbox
              • Element Dimensioning
                • To Dimension an Element
                • To Label the Length and Direction of a Line
                • To Dimension a Distance Perpendicularly from an Element (at a Separately-Identified Point)
                • To Dimension the Radius of a Circular Element
                • To Dimension the Radius of a Circular Element with an Extended Leader
                • To Dimension the Diameter of a Circular Element
                • To Dimension the Diameter of a Circular Element with an Extended Leader
                • To Dimension Diameter with the Dimension Placed Parallel
              • Linear Dimensioning
                • To Dimension the Distance Between Two Points
                • To Create a Linear Dimension by Selecting Multiple Elements
                • To Create a Stacked Linear Dimension from an Origin
                • To Create a Chained Linear Dimension from an Origin
              • Angular Dimensioning
                • To Dimension an Angle
                • To Dimension an Angle(s) from an Origin
                • To Dimension the Angle Between Two Lines
                • To Dimension the Size of an Arc
                • To Dimension an Arc from an Origin
              • Ordinate Dimensioning
                • To Place an Ordinate Dimension
              • Change Dimension
                • To Change a Dimension to the Active Dimension Attributes
                • To Change a Dimension by Changing the Dimension Style
                • To Change Only Some of a Dimension's Attributes
              • Match Dimension Settings
                • To Match Dimension Settings
              • Drop Dimension Element
                • To Break Up a Dimension Element
                • To Break Up Dimension Elements in the Fence Contents
              • Reassociate Dimension
                • To Recreate a Dimension's Associativity Individually
                • To Recreate Several Dimensions' Associativity Using a Fence
              • Place Center Mark
                • To Place a Center Mark in a Circle or Arc Using the Place Center Mark Tool
            • Angular Dimensions Toolbox
              • Dimension Angle from X-Axis
                • To Dimension an Angle from the X-Axis
              • Dimension Angle from Y-Axis
                • To Dimension an Angle from the Y-Axis
              • Dimension Chamfer
                • To Dimension the Angle of a Chamfer
            • XYZ Text Toolbox
              • Label Point Coordinate
                • To Label Coordinates with a Data Point
              • Label Element Coordinates
                • To Label Coordinates of a Single Element
                • To Label Coordinates of Fenced Elements
                • To Label Coordinates of All Elements in a Design
              • Export Coordinates
                • To Export Coordinates of a Single Element to a Text File
                • To Export Coordinates of Fenced Elements to a Text File
                • To Export All Coordinates of Elements in the Design File to a Text File
              • Import Coordinates
                • To Import Coordinates from a Text File as Points
                • To Import Coordinates from a Text File as Text
                • To Import Coordinates from a Text File as Cells
            • Insert (Dimension) Vertex
              • To Add an Extension Line to a Dimension Element
            • Delete (Dimension) Vertex
              • To Delete an Extension Line
            • Dimensioning Key-ins
              • To Turn Off a Dimension's Extension Line
              • To Turn Off All of a Dimension's Extension Lines
              • To Turn On a Dimension's Extension Line
              • To Turn On All of a Dimension's Extension Lines
              • To Toggle the Display of a Dimension's Extension Lines
              • To Change the View That Determines the Orientation of Dimension Text
              • To Change the Dimension Text Justification
            • Changing Dimension Associations
              • To Drop an Association Point
              • To Reassociate an Extension Line to an Element
            • Modifying a Dimension Element and Dimension Text
              • To Move an Extension Line
              • To Modify the Length of an Extension Line
              • To Modify the Length of Extension Lines
              • To Move Dimension Text
              • To Edit Text in a Dimension Element
            • Dimension Audit
              • To Set Criteria for a Dimension Audit
              • To Find a Dimension Error
              • To Run Dimension Audit from Key-ins
              • Dimension Audit Dialog
          • Detailing
            • Placing Detailing Symbols
              • Detailing Symbol Styles
                • To Provide Custom Cells and Create Placeholder Fields
                • To Create a Detailing Symbol Style Using Custom Cells
                • Detailing Symbol Styles Dialog
              • Placing a Section Callout
                • To Open a Section View from a Callout in the Same View Window
                • To Open a Section View from a Callout in Another View Window
                • To Attach a Section View to a Sheet as a Reference
              • Placing a Section View on a Sheet
              • Placing Detail Callouts on Section View Attachments
              • Placing an Interior Elevation Callout
                • To Add Elevation Callouts to the Existing Interior Elevation Callout
                • To Delete Elevation Callouts in an Interior Elevation Callout
                • To Rotate the Elevation Callout in an Interior Elevation Callout
              • Modifying Properties of a Callout
                • To Modify a Callout by Selecting It
                • To Modify a Callout Through the Properties Dialog
                • To Modify a Callout by Modifying the Saved View
                • To Create a Step or a Gap in a Section or Plan Callout
                • To Merge the Step Handles of a Section or Plan Callout
              • Updating Placeholder Fields of a Callout
                • To Update Placeholder Fields for a 3D Design Model Referenced in a Sheet Model
                • To Update the Placeholder Fields of a Section Callout in a 2D Sheet Model
                • To Update the Placeholder Fields of a Detail Callout in a 2D Sheet Model
            • Detailing Symbols Toolbox
              • Place Section Callout
                • To Place a Section Callout
              • Place Detail Callout
                • To Place a Detail Callout
                • To Place a Detail Callout Using an Existing Element to Define the Detail Area
              • Place Elevation Callout
                • To Place a Single Elevation Callout
                • To Place an Interior Elevation Callout
              • Place Plan Callout
                • To Place a Plan Callout
              • Place Drawing Boundary
                • To Place a Drawing Boundary by Two Points
                • To Place a Drawing Boundary by Element
              • Place Title Text
                • To Place Title Text
            • Overview of Callouts in 3D
              • Workflow for Using Callouts in a Project
              • Association Lines
            • Using Callouts in 3D
              • To Display Sheet Annotations in a 3D Design Model
              • To Open a Reference Sheet Model from a Marker in a 3D Design Model
              • To Clip a Model from a Callout in a 3D Design Model
              • To Open a 3D Design Model from a Callout in a Sheet Model
              • To Open a Sheet Model from a Drawing Boundary Displayed in a 3D Design Model
              • To Open a Drawing Model from a Drawing Boundary in a Sheet Model
            • Mini Toolbar for Callouts
              • Apply View
                • To Apply the Saved View From a Callout in a 3D Design Model
              • Create Drawing
                • To Create a Saved View
              • Show Callouts
                • To View Callouts in a Design or Sheet Model
              • Place View on Drawing or Sheet
                • To Place a Saved View on a Drawing Model
            • Numbering Sheets and Drawings
              • To Navigate to a Drawing Boundary on a Sheet
              • To Change a Drawing Identifier in a Sheet Composition
            • Capturing Graphics in Dynamic Views
          • Cloud Toolbox
            • Cloud By Points
              • To Place a Revision Cloud
            • Cloud By Element
              • To Create a Revision Cloud from an Existing Closed Element
              • To Create Revision Clouds from Multiple Elements
          • Using Cells
            • Using Cells in 3D
            • Cells Toolbox
              • Place Active Cell
                • To Place the Active Cell
                • To Place Content from a Web Page as a Cell
              • Web-Drop Settings Dialog
              • Place Active Cell Matrix
                • To Place a Matrix of the Active Cell
              • Select and Place Cell
                • To Select and Place a Cell
              • Define Cell Origin
                • To Define a Cell Origin
              • Identify Cell
                • To Display a Cell's Name and Level
              • Place Active Line Terminator
                • To Place the Active Line Terminator
              • Replace Cells
                • Replacing Parametric Cells
                • To Update Cells from the Active Cell Library
                • To Replace Cells Individually or Globally
                • To Replace Individual or Multiple Cells Inside a Fence
                • To Individually Replace Cells Containing User Data
                • To Replace Cells from the System Command Line
              • Place Cell Index
                • To Create and Place a Cell Index
              • ANNOTATIONSCALE
                • To Select All Elements That Use Annotation Scale
            • Cell Library Dialog
              • Create Cell Dialog
              • Update Parametric Cell
                • To Update a Parametric Cell in a DGN with a Newer Version Having Updated Item Type and Parametric Information
                • To Place a Parametric Cell Containing Updated Versions of the Current Item Type Libraries in a DGN
              • Extract Cell Model
                • To overwrite a cell definition while extracting a cell model
            • Cells Configuration Variables
            • Hatching and Patterning
              • Controlling the Display of Patterns
                • To Turn the Display of Patterns On or Off in One or More Views
                • To Turn the Display of Patterns On or Off in All Open Views
              • Placing Patterns in the Design
              • Associative Patterns
              • Snappable Patterns
              • Excluding Areas Inside a Patterned Area from Patterning
              • Patterning Disjointed Regions
              • Cells Used for Patterning
                • Pattern Cells Supplied with the Product
                • Guidelines for Creating Pattern Cells
            • Patterning Toolbox
              • Hatch Area
                • To Hatch the Area Inside a Closed Element
                • To Hatch the Area Between Multi-Line Components
                • To Hatch a Fenced Area
                • To Hatch the Intersection or Union of Closed Elements
                • To Hatch the Difference Between Elements
                • To Hatch an Area Enclosed by Bounding Elements
                • To Hatch an Area Containing Nested Elements Within the Bounding Elements
                • To Hatch an Area Bounded by Intersecting Segments of Elements
                • To Hatch an Area Defined by Data Points
              • Crosshatch Area
              • Pattern Area
                • To Pattern the Area Inside a Closed Element Using a Cell
                • To Pattern the Area Inside a Closed Element Using a Pattern from a PAT File
                • To Pattern the Area Between Multi-Line Components
                • To Pattern a Fenced Area
                • To Pattern the Intersection or Union of Closed Elements
                • To Pattern the Difference Between Elements
                • To Pattern an Area Enclosed by Bounding Elements
                • To Pattern an Area Defined by Data Points
                • To Replace a Pattern Applied to an Area
                • To Modify the Settings for a Pattern Applied to an Area
              • Linear Pattern
                • To Pattern a Linear Element
              • Show Pattern Attributes
                • To Display the Angle and Scale of a Pattern Element
              • Match Pattern Attributes
                • To Match the Active Pattern Settings to Those of an Existing Pattern Element
              • Change Pattern
                • To Change an Existing Pattern to the Current Settings
              • Drop Associative Pattern
                • To Drop an Associative Pattern or Hatching
              • Delete Pattern
                • To Delete Patterning
          • Terrain Model Toolbox
            • Import LandXML Terrain Model
              • To Import a LandXML File
              • LandXML Import Dialog
            • Label Terrain Contours
              • To Label Terrain Contours
            • Label Terrain Spots
              • To Label Terrain Spots
        • Attach Tab
          • References, Raster Images, Point Clouds, and Reality Mesh
            • Attaching References
              • To Attach a Single Reference
              • To Attach a Model Reference from the Models Dialog
              • To Attach a Model Reference from the Explorer Dialog
              • To Attach a Saved View Reference from the Saved Views Dialog
              • To Attach a Saved View Reference from the Explorer Dialog
              • Attaching References with Recommended Settings
                • To Attach a Model Reference with Recommended Settings Using Drag-and-Drop Operation
                • To Attach a Model Reference with Recommended Settings Using the Attach Reference Dialog
                • To Attach a Saved View Reference with Recommended Settings
              • Attaching References Coincident to the Active Model
                • To Attach a Reference Coincident
                • To Attach Multiple References from a Single Directory
                • To Attach Multiple References from Multiple Folders
                • To Attach References Interactively by Using Drag-and-Drop Operation
                • To Attach a Model as a Coincident Reference Using Drag-and-Drop Operation
                • To Attach the Active Model to Itself as a Reference (Self-Reference)
              • Attaching References Using Views and Named Boundaries
                • To Attach a Reference by Using Standard Views
                • To Attach a Reference by Using a Named Boundary
                • To Attach a Reference by Using a Saved View
              • Making Portable Reference Attachments
                • To Attach a Model as a Reference Residing in a Directory Specified by a Configuration Variable
              • Locating Attachments
              • Locating Lost Attachments
                • To Update a Reference When OpenTunnel Designer Cannot Locate the File
              • Attaching Remote References
                • To Attach a Remote Reference
            • Reference Update Sequence
              • Adjusting the Update Sequence
                • To Modify the File Update Sequence
                • To Restore the Default Update Sequence
                • To Override the Custom Update Sequence with the Default
            • Working with Attached References
              • Clipping References
                • To Define a Reference Clipping Boundary by Using a Fence
                • To Define a Reference Clipping Boundary by Using a Named Fence
                • To Define a Reference Clipping Boundary by Using an Element
                • To Mask a Reference
                • To Selectively Delete Reference Clipping
                • To Define a Reference Front Clipping Plane (3D Only)
                • To Define a Reference Back Clipping Plane (3D Only)
                • Modifying Reference Clip Boundaries and Masks
                  • To Adjust a Single Vertex of a Reference Clip Boundary and Mask
                  • To Adjust Multiple Vertices of a Reference Clip Boundary and Mask
              • Manipulating References
                • Using Standard Tools to Manipulate References
                • Using the Reference Tools to Manipulate References
                  • To Move a Reference Selected from the References Dialog List
                  • To Move a Reference by Using a Fence
                  • To Copy Elements from a Reference to the Active DGN File
                  • To Copy References Selected from the References Dialog List
                  • To Copy References by Using a Fence
                  • To Scale References Selected from the References Dialog List
                  • To Scale References Selected by Using a Fence
                  • To Rotate References Selected from the References Dialog List
                  • To Rotate References by Using a Fence
                  • To Mirror References Selected from the References Dialog List
                  • To Mirror References by Using a Fence
                  • To Copy and Fold a Reference About a Horizontal or Vertical Line
                  • To Copy and Fold a Reference About a Specified Line
                • Manipulating Masked Area of a Reference
                  • To Enable Manipulating Masked Area of a Reference
                • Temporarily Activating a Reference for In-Place Editing
                  • To Activate a Reference for In-Place Editing by Selecting an Element in the Reference
                  • To Activate a Reference for In-Place Editing from the References Dialog List
                  • To Deactivate a Reference and Release Its Lock
                  • To Deactivate a Reference Without Releasing Its Lock
                  • To Release the Lock on a Deactivated Reference
                • Manipulating Elements in a Cached Reference
                  • To Hide Elements in a Cached Reference
                  • To Copy and Manipulate Elements in a Cached Reference
                • Exchanging to a Reference
                  • To Exchange to a Reference Selected from the References Dialog List
                  • To Exchange to a Reference by Selecting a Referenced Element
                  • To Exchange to a Reference from a Key-in by Using the References Dialog
                  • To Exchange to a Reference Selected Graphically
                  • To Exchange to a Reference by Using a Key-in
              • Setting Reference Presentation
                • To Set Presentation Options for a Reference
              • Reloading References
                • To Reload a Reference
                • To Reload All Attached References
                • To Update Reference Elements in a View
              • Detaching References
                • To Detach References
                • To Detach All References
              • Controlling Reference Settings
                • To Turn On or Off the Display of a Reference
                • To Disable Reference Level Property Changes from Remaining in Effect Across Sessions
                • To Turn On or Off Snapping to Elements in a Reference
                • To Control Whether Elements in a Reference Can Be Identified (for Construction)
                • To Change a Reference's Logical Name or Description
                • Adjusting Reference Colors
                  • To Dim All Elements in a Reference
                  • To Make All Elements in a Reference the Same Color
                • Reference Transparency
                  • To Set Reference Transparency from the Transparency Dialog
                  • To Set Reference Transparency from the Adjust Colors Dialog
                • Reference (Display) Priority for 2D References
                  • To Set the (Display) Priority for References in a 2D Model
              • Identifying References
                • To Identify a Reference
              • Working with Nested References
                • Modifying Attributes of Nested References
                • Adjusting Nested References Colors
                • Controlling the Reference Color Table
              • Merging References into the Active Model
                • To Merge the Active Model and Attached References
                • To Merge an OpenPlant Modeler File into a Master File
                • To Merge into Master file in a Sheet View
              • References Tools for Drawing Creation
              • Reference Toolbox
              • Attach Reference
              • Set Reference Clip Boundary
              • Set Reference Clip Mask
              • Delete Reference Clip
              • Set Reference Back Clip Plane
              • Set Reference Front Clip Plane
              • Reload Reference
              • Move Reference
              • Copy References
              • Scale References
              • Rotate Reference
              • Mirror Reference
              • Copy Reference By Folding
              • Set Reference Presentation
              • Hidden Line Settings Dialog
                • Hidden Line Settings Dialog, General Tab
                • Hidden Line Settings Dialog, Hidden Tab
                • Hidden Line Settings Dialog, Visible Tab
              • Cached Visible Edges Settings Dialog
                • Cached Visible Edges Settings Dialog, General Tab
                • Cached Visible Edges Settings Dialog, Symbology Tab
              • Detach Reference
              • REFERENCE UPDATE
              • References Key-ins
                • References Key-in Format
                • Reference Settings Key-ins
                • Visible Edges Display Key-ins
                • Miscellaneous References Key-ins
                • Reinstating Level Display On and Off Settings After Switching References Outside the Product
            • Reference Configuration Variables
            • Raster Manager Overview
              • Using Raster Manager
                • Raster Manager Dialog
                  • Attach Raster Reference Dialog
                  • Save Raster As Dialog
                  • Raster Convert Dialog
                  • Raster Save As Settings Dialog
                  • Cache Manager Dialog
                  • Image Server Settings Dialog
                  • WMS Map Editor Dialog
                    • WMS Map Editor Dialog, Map Layers Section
                    • WMS Map Editor Dialog, Settings Tab
                      • Select Coordinate System Dialog
                    • WMS Map Editor Dialog, Preview Tab
                    • WMS Service Manager Dialog
                  • WMTS Attachments (Web Map Tile Service)
                    • WMTS Map Editor Dialog (Web Map Tile Service)
                      • WMTS Map Editor Dialog, Map Layers Section
                      • WMTS Map Editor Dialog, Settings Tab
                      • WMTS Map Editor Dialog, Preview Tab
                      • WMTS Service Manager Dialog
                  • Layer Display Dialog
                • To Show or Hide a Field in the Raster Manager Dialog
              • Printing Raster Images
              • Batch Raster File Conversion
                • Syntax for MSBatch Raster File Conversion
              • Supported Output File Formats
            • Raster Manager Tools
              • Raster Toolbox
              • Raster Display Toolbox
              • Bring to Front
                • To Bring a Raster Image to the Front of the Display
                • To Bring a Raster Image Forward One Position in the Display
              • Send to Back
                • To Send a Raster Image to the Back of the Display
                • To Send a Raster Image Back One Position in the Display
              • Fit to View
                • To Fit All Raster Images to a View(s)
                • To Fit Selected Raster Images to a View(s)
              • Actual Resolution (1:1)
                • To Fit a Raster Image to Its Actual Resolution
              • Contrast/Brightness
                • To Adjust the Contrast/Brightness Display of an Attached Raster File
              • Raster Control Toolbox
              • Attach
                • To Attach a Raster Reference
              • Raster Selection
                • To Select, Interactively, One or More Raster References
              • Transform Raster
                • To Move an Image
                • To Scale an Image
                • To Rotate an Image
              • Move Raster
                • To Move a Raster
              • Scale Raster
                • To Scale an Image Using Active Scale
                • To Scale an Image Using 3 Points Scale
              • Rotate Raster
                • To Rotate an Image to a Specified Angle
              • Mirror Raster
                • To Mirror an Image Using the Mirror Tool
                • To Reverse an Image Using a Mirror Creating a New Output Image
              • Raster Warp
                • To Warp a Raster Reference
              • Clip
                • To Crop a Raster Image Using an Element to Define the Boundary
                • To Crop a Raster Image Using a Fence to Define the Boundary
                • To Crop a Raster Image Using a Block to Define the Boundary
                • To Mask an Area of a Raster Image Using an Element to Define the Boundary
                • To Mask Part of a Raster Image Using a Fence to Define the Boundary
                • To Mask Part of a Raster Image Using a Block to Define the Boundary
              • Modify Clip
                • To Modify a Clipping Polygon
              • Unclip
                • To Delete All Clipping Polygons from a Raster Image
                • To Delete Selected Clipping Polygons from a Raster Image
            • Managing Raster Image Files
              • Raster Image Display
                • Attaching Raster Files
                  • To Attach a Raster Reference Based on the Image's Own Positioning Information
                  • To Attach a Raster Reference Interactively
                • Selecting Raster Files to Modify or Manipulate
                  • To Select One Image in a View
                  • To Select Additional Images in a View
                  • To Select One Raster Image from the List
                  • To Select Additional Raster Images from the List
                  • To Select Several Consecutive Raster Images from the List
                  • To Deselect Images
                  • To Deselect All Images in a View
                  • To Deselect All Raster Files from the List
                • Detaching Raster Files
                  • To Detach Selected Raster Files
                  • To Detach All Raster References
                • Image Server
                  • To Set a New Image Server
                  • To Attach a File from a Server
                • WMS Attachments
                  • To Create a New WMS Attachment
                  • To Attach an Existing WMS
                • ECWP Image Server
                  • To Attach a File from an ECWP Image Server
                • Bing Maps
                  • To Attach Bing Maps
              • Raster Attachment Options Dialog
              • Default Raster Attachment Options Dialog
              • Supported Image Input File Formats
                • Image Formats Supported in Read-Only Mode
              • Controlling the Display of Images in Views
                • To Change the Views in Which an Image Is Displayed
                • Changing the Display Order of Raster Image Files
                  • Using the Raster Manager Dialog?s Menus
                    • To Bring One or More Images to the Front in the List
                    • To Send One or More Images to the Back in the List
                    • To Bring One or More Images Forward One Place in the List
                    • To Send One or More Images Backward One Place in the List
                    • To Change the Display Order in the List Interactively
                  • Using the Raster Group of the Attach Tab in the Drawing Workflow
                    • To Bring One Image to the Front of the Display in a View
                    • To Bring Several Images to the Front of the Display in a View
                    • To Send One Image to the Back of the Display in a View
                    • To Send Several Images to the Back of the Display in a View
              • Fitting Images to a View
                • To Fit a Single Image to a View
                • To Fit All Images to a View
              • Displaying an Image at Full Resolution
                • To Display an Image at Its Full Resolution with the Actual Resolution (1:1) Tool
                • To Display an Image at Its Full Resolution from the Raster Manager Dialog
              • Changing the Display Characteristics of Raster Images
                • To Change the Contrast or Brightness of an Image
                • To Change the Display Gamma Setting for an Image(s)
              • Raster Images and DWG Workmode
                • Raster Manager and DWG Workmode
                • General Raster Features Disabled in DWG Workmode
                • File-type Dependant Raster Features Disabled in DWG Workmode
                • Supported Raster Image File Types in DWG Workmode
                • Troubleshooting Rasters and DWG Workmode
              • Raster Manager and Binary Workmode
              • Enhanced Dynamic Rubber Bands
            • Modifying Raster File Attachments
              • Clipping Raster Image Files
                • To Crop an Image Interactively
                • To Crop an Image Using an Existing Fence or Closed Element
                • To Mask Part of an Image Interactively
                • Modifying Clipping Polygons
                  • To Modify a Raster Clipping Polygon
                • Deleting Clipping Polygons
                  • To Delete Selected Clipping Polygons from a Raster Image
              • Moving, Warping, and Resizing Image Files
                • Using the Transform Tool
                  • To Rotate an Image Interactively
                  • To Scale an Image Interactively
                  • To Move an Image Interactively
                • Using the Warp Tool
                  • To Match an Image Feature to a Design File Element
              • Image Draping
                • Draping and Rendering
                • 3D Surfaces and Raster Manager
                • Integration with Rendered Objects
                • Draping Supported in Some Products
                • Associating an Image to a 3D Surface
                  • Overview of a Draping Process
              • Reprojecting Images
                • Reprojection Workflow
                  • Rasters Attached in a Model in a Reference
                  • Rasters Attached in the Master Model
                • Changing the Geographic Coordinate System of the DGN
                • Copy and Paste a Raster (including Merge to Master)
                • Applying a GCS to a Raster (Resampling)
                • Editing Tools and Reprojected Rasters
            • Raster Configuration Variables
            • Using Point Clouds
              • Point Cloud Toolbox
                • Point Clouds Dialog
                • Convert Dialog
              • Attaching Point Cloud Data
                • Attach Point Cloud
                  • To Attach a Point Cloud
                  • To Convert a Point Cloud File
                  • To Batch Convert Multiple Point Cloud Files to a Single POD File
                  • To Batch Convert Multiple Point Cloud Files to Individual POD Files
                • Detach Point Cloud
                  • To Detach a Point Cloud
                  • To Detach a Point Cloud from the Point Clouds Dialog
              • Modifying Point Cloud Data
                • Clip Point Cloud
                  • To Apply a Clip to a Point Cloud Using a Block
                  • To Apply a Clip to a Point Cloud by Boundary
                  • To Apply a Clip to a Point Cloud by Mask
                • Delete Point Cloud Clip
                  • To Delete a Clip from a Point Cloud
              • Displaying the Point Cloud Data
                • Point Cloud Styles
                • To Filter the Point Cloud by Classification
                • To Colorize Points by Elevation
                • To Display Point Cloud Data by Intensity
              • Reviewing Point Cloud Data
                • To Visually Inspect the Point Cloud
                • To Change the Size of the Points in a Point Cloud
                • To Measure Distance in a Point Cloud
              • Referencing a Point Cloud
              • Printing a Point Cloud
                • To Print a Point Cloud
            • Reality Mesh Files Support
              • Attach Reality Mesh
                • To Attach a Reality Mesh
                • Scalable Mesh File Support
                • Reality Management Browser
                  • Reality Management Dialog
              • Remove Reality Mesh Clipping
              • Reality Mesh Attachments Dialog
              • (Technology Preview) 3SM Clip Tool
                • (Technology Preview) To clip or mask the reality mesh using different methods
              • Reality Model Classification
                • Working with Reality Model Classifiers
                • Attach Classifier to Reality Mesh
                  • To Attach Classification to a Reality Mesh
            • Feature Info dialog
          • References
          • References Dialog
            • Reload Reference
          • Display of Rendered Views
          • View Attributes Dialog
            • View Attributes Dialog, Presentation Section
            • View Attributes Dialog, View Setup Section
            • View Attributes Dialog, Point Cloud Styles Section
            • View Attributes Dialog, Clip Volume Section
            • View Attributes Dialog, View Seed Options Section
            • View Attributes Dialog, Background Map Section
          • References
          • External Database Interface
            • Managing Non-Graphical Data
              • Associating Elements to Non-Graphical Data
              • Tag to Database Converter
              • What Is the Database Interface?
              • Why Use the Database Interface?
              • What Is a Relational Database?
              • Why Use a Relational Database?
              • Database Server
                • Supported Database
              • Selection Factors
              • Database Product Families
                • Oracle
                  • Oracle Product Descriptions
                • ODBC Database Interface
                • OLE DB Database Interface
                  • Using Oracle Data Provider (ODP) With OLEDB and BUDBC Connections
            • Connecting to Databases
              • Setting Up the Database Interface
                • Connecting to ODBC
                  • To Set Up the ODBC Interface
                  • To Connect to an ODBC Database from the Connect to Database Dialog
                  • To Connect to an ODBC Database from the Product Properties Dialog
                • Connecting to Oracle
                  • Setting Up Oracle
                  • To Set Up the GIS Example Database
                  • To Connect to an Oracle Database from the Connect to Database Dialog
                  • To Connect to an Oracle Database from the Product Properties Dialog
                  • Windows Notes
                • Connecting to an OLE DB Data Source
                  • Setting Up OLE DB
                  • To Create a UDL File in Windows
                  • To Create a UDL File in OpenTunnel Designer
                  • To Edit a UDL File
                  • To Connect to an Existing OLE DB Data Source
                • Connecting to BUDBC
                  • To Connect to a BUDBC Database
                • MS_LINKTYPE
                  • OLEDB Configuration Variables
                  • Copying Elements with Attached Linkages
              • Database Configuration Variables
              • Troubleshooting Database Connections
              • Connect to Database Dialog
              • Key-in to Disconnect a Database
            • Linking Database Rows to Elements
              • Database Tools Available in OpenTunnel Designer
              • Visual SQL Query Builder
                • Visual SQL Query Builder Dialog Overview
                • Building Simple SELECT Statements
                  • To Use the Visual SQL Query Builder to Build a Query: Example 1
                  • To Use the Visual SQL Query Builder to Build a Query: Example 2
                  • Joining Tables
                    • To Use the Visual SQL Query Builder to Build a Query: Example 3
                    • To Use the Visual SQL Query Builder to Build a Query: Example 4
                • Creating Linkages Using the Visual SQL Query Builder
                  • To Link a Database Row to a Graphic Element
                • Reviewing Database Attributes
                • Database Form Dialogs
                  • To Create a New Form Dialog Containing All Items
                  • To Perform a Review from a Form Dialog
                  • Locating Linked Elements
                    • To Display the Design Element Linked to One of the Records
                  • Opening, Editing, and Saving Form Dialogs
                    • To Save or Customize the Form Generated from the Visual SQL Query Builder
                    • To Open a Saved Form
                    • To Open a Saved Form by Using a Key-in
              • Using SQL
                • Opening and Saving Query Statements
                  • To Open a Query Statement
                  • To Save a Query Statement
                • SQL Statements
                  • SELECT SQL Statement
                  • UPDATE SQL Statement
                  • DELETE SQL Statement
                  • INSERT SQL Statement
                  • CREATE TABLE SQL Statement
                  • DROP SQL Statement
                  • COMMIT SQL Statement
                  • ROLLBACK SQL Statement
                • Specific SQL Window Key-ins
                • Using the SQL Window
                  • To Open the SQL Window
                  • To Submit a SQL Statement
                • Command Files
                  • To Create a Command File
                  • To Submit a SQL Statement Stored in a Command File
                  • Alternative Method to Submit a SQL Statement Stored in a Command File
                • Manually Committing SQL Statements
                  • To Activate the Mode in which OpenTunnel Designer Does Not Automatically Commit SQL Statements
                  • To Explicitly Request OpenTunnel Designer to Commit Statements When AUTOCOMMIT Is Set to OFF
                  • To Undo (Negate) the Effect of All Statements to the Last Commit Point
                  • To Reactivate the Default Mode
              • Creating Tables
                • To Create a Table
                • To Add a Table to the MSCATALOG
              • MSCATALOG Table
                • MSCATALOG Structure
                • Creating and Maintaining MSCATALOG
                  • To Create the MSCATALOG Table
                  • To Create an Attribute Table in the Database
                  • To Add a Table to the MSCATALOG Table
                  • To Delete a Table from the MSCATALOG Table
                  • To Drop a Table from the Database
                  • Database Setup (MSCATALOG) Dialog
                    • Add Table Dialog
              • Database Tools
              • Creating Linkages
                • To Create Linkages
                • Defining the Active Entity
                  • To Define the Active Entity Graphically by Using the Database Tool
                  • To Directly Define the Active Entity by Key-in
                  • To Define an Active Entity from a Seed Row
                  • Editing the Active Entity
                    • To Edit the Active Entity by Using an SQL UPDATE Command
                • Setting Linkage Mode
                  • To Set Linkage Mode
                • Attaching Linkages to Cell Libraries
                • Database Dialog
            • Querying and Maintaining the Database
              • Reviewing Attributes
                • To Change the Selection Criteria
                • To Check the Selection Criteria for All Tables (SQLREVIEW Values for All Tables in MSCATALOG)
                • Visual SQL Query Builder Dialog
                  • Visual SQL Query Builder Dialog, Select Tab
                  • Visual SQL Query Builder Dialog, Where Tab
                  • Visual SQL Query Builder Dialog, GroupBy Tab
                  • Visual SQL Query Builder Dialog, OrderBy Tab
                  • Select Table Dialog
                  • Form Dialog
                  • Visual SQL Data Browser Dialog
              • Displaying Database Attributes in the DGN File
                • Displaying Attributes
                • To Create a Displayable Attribute Type
                • To Modify a Displayable Attribute Type
              • Detaching Linkages
              • Verifying Linkages
                • Verify Linkages Dialog
                  • Verify Linkages Dialog Icons
            • Generating Reports
              • Report Tables
                • To Generate Report Tables
                • To Check the Report Table Names for All Tables Listed in MSCATALOG
                • To Change a Report Table Name Specification
              • Fence Filters
                • To Discard Previously Defined Fence Filter Specifications and Disable Fence Filter Selection
                • To Define a Fence Filter and Enable Fence Filter Selection
                • To Highlight Elements in a Fence Using a VBA Macro
              • Report Formatting and Output
            • Change Element Attributes
              • To Change an Element's Attributes (Those That Are Set to On)
              • To Match the Active Attributes to an Element and Use These Settings to Change the Attributes of Other Elements
              • To Change the Attributes of One Element to Match Those of Another, Without Affecting the Active Attributes
            • Database Interface Reference
              • Database Toolbox
                • Connect to Database Tool
                • Open Verify Linkages Tool
                • Open Visual Query Builder Tool
                • Attach Active Entity Tool
                  • To Attach the Active Entity to an Element
                • Show Linkage Mode
                  • To Display the Linkage Mode
                • Show Active Entity Tool
                  • To Display the Active Entity
                • Define Active Entity Graphically Tool
                  • To Set a Database Row as the Active Entity
                • VSQL Review Database Attributes of Element
                  • To Review a VSQL Database Record
                • Review Database Attributes of Element Tool
                  • To Review the Database Attributes of an Element
                • Detach Database Linkage
                  • To Detach Database Rows from an Element
                • Attach Displayable Attributes Tool
                  • To Designate a Displayable Attribute Text Node
                • Load Displayable Attributes Tool
                  • To Load a Displayable Attribute Text Node
                  • To Load a Displayable Attribute on Use Fence Mode
                • Generate Report Table Tool
                  • To Generate a Report Table
              • ACTIVE DATABASE (DB=)
                • To Connect OpenTunnel Designer to an Oracle Database
                • To Connect OpenTunnel Designer to ODBC
                • To Check the Name of the Database to Which OpenTunnel Designer is Connected
              • ACTIVE ENTITY (AE=)
                • To Define the Active Entity
              • ACTIVE REPORT (RS=)
                • To Name a Report Table
                • To Display the Active Report Table Names in the SQL Window
              • ACTIVE REVIEW (RA=)
                • To Select Which Row Can Be Reviewed
                • To Display the Active Review SELECT Statements in the SQL Window
              • DEFINE SEARCH (DS=)
                • To Specify and Activate a Fence Filter
                • To Display the Current Fence Filters in the SQL Window
                • To Disable All Fence Filters
              • EDIT AE
                • To Edit the Active Entity
              • FIND (FI=)
                • To Select a Row and Set It as the Active Entity
              • SESSION AUTOCOMMIT [OFF|ON]
              • SESSION DEBUG [OFF|ON]
                • List Database Transaction Details
                • To Discontinue the Transaction Log
              • SET DATABASE
                • To Review and Modify the MSCATALOG Table
              • SQL
              • SQL Window
              • Cell Link
                • To Attach a Linkage to a Cell(s)
                • To Detach Linkages from a Cell(s)
              • Cell Link Dialog
        • Analyze
          • Measure Toolbox
            • Measure Distance
              • To Measure the Linear Distance Between Two Data Points
              • To Measure the Distance Along an Element
              • To Measure Perpendicular Distance from an Element
              • To Measure Perpendicular Distance from a Segment of an Element
              • To Measure the Minimum Distance Between Elements
              • To Measure the Maximum Distance Between Elements
              • To Measure the Minimum Distance to a Surface (3D Only)
              • To Measure Elements in a Reference Considering the Reference Scale
            • Measure Radius
              • To Measure an Element's Radius
            • Measure Angle Between Lines
              • To Measure the Angle Between Two Lines
            • Measure Length
              • To Measure the Length of an Element(s)
            • Measure Area
              • To Measure the Area and Perimeter of One Element
              • To Measure the Area Defined by a Fence
              • To Measure the Area of the Intersection or Union of Closed Elements
              • To Measure the Area of the Difference Between Elements
              • To Measure the Area of Touching Elements or Whose Endpoints Are Within the Maximum Gap
              • To Measure an Area Defined by Data Points
            • Measure Volume
              • To Measure Volume
          • Design Review
            • Using Redline Files
              • To Enable or Disable the Display of an Attached Redline File
              • Redline Toolbox
                • Redline Display
              • Display Redline Files Dialog
              • Redline Off
                • To Detach All Attached Redline Files
            • Annotate Toolbox
              • Place Flag
                • To Place a Flag
              • Show/Edit Flag
                • To Display or Edit a Flag's Explanatory Message from Selected Flag
              • Update Flags
                • To Update a Flag's Display Image
            • Marking Up a Design
              • Managing Markups
                • To Preview a Markup
                • To Print a Markup to PDF
                • To Print Multiple Markups to One PDF
                • To Delete a Markup
                • To Rename a Markup
                • To Change the Properties of a Markup
                • To Set the Priority of the Markup
                • To Set the Status of the Markup
              • Adding Comments
                • To Manually Add a Comment
              • Using Named Expressions to Name Markups
                • To Customize the Delivered Example Markup Names
                • To Create and Define a New Markup Named Expression
              • Markup Configuration Variables
              • Annotating Markups
                • To Place Markup Text
                • To Redline the Markup Model
              • Markups Dialog
              • Markup Settings Dialog
              • Markup Toolbox
              • Mini Toolbar for Markups
          • Ensuring Standards Compliance
            • Introduction to the Standards Checker
            • Using the Standards Checker
              • Defining Standards Checker Settings
                • To Create Standards Check Settings
                • Standards Checker Configuration Variables
              • Running the Standards Checker Interactively
                • Running an Interactive Standards Check
              • Generating Standards Checker Reports
                • Generating a Standards Check Report
              • Reporting Template Standards Checks in Named Groups
                • To Check Element Templates and Send Results to a Named Group
              • Running Standards Checks on an Individual File
                • To Set Up and Run a Standards Check on an Individual File
              • Running Standards Checks as a Batch Process
                • To Set Up and Run a Standards Check as a Batch Process
                • Syntax for Running Standards Checks in the Batch Process Utility
              • Standards Checker Dialog
              • Standards Checker Settings Dialog
              • Level Checker Settings Dialog
              • Text Style Checker Settings Dialog
              • Dimension Style Checker Settings Dialog
              • Element Template Checker Settings Dialog
              • Line Style Checker Settings Dialog
          • Design File Cleanup
            • To Select Duplicate Elements
            • To Automatically Delete Duplicate Elements
            • To Select or Flag Overlapping Elements
            • To Interactively Examine Overlapping Elements
            • To Select or Flag Gaps Between Elements
            • To Interactively Examine Gaps Between Elements
            • Design File Cleanup Dialog
              • Design File Cleanup Dialog, General Tab
              • Design File Cleanup Dialog, Duplicates Tab
              • Design File Cleanup Dialog, Overlaps Tab
              • Design File Cleanup Dialog, Gaps Tab
          • Reports Dialog
            • Summarize, Groups and Aggregates
              • To Group Columns and Aggregate Column Information
              • To Summarize Information in Report Columns
          • Condition Editor Dialog
            • To Add Conditions to a Display Rule
          • iTwin Design Review Dialog
        • Curves
        • Constraints Tab
        • Utilities Tab
        • Drawing Aids
        • Content
        • Collaborate
        • Help
      • General Workflow
      • Modeling Workflow
        • Home Tabs
        • View
        • Curves
        • Solids
        • Surfaces
        • Mesh
        • Content
        • Analyze
        • Constraints
        • Utilities
        • Drawing Aids
        • Collaborate
        • Help
      • Visualization
        • Home Tab
        • View Tab
        • Animate Tab
        • Drawing Aids
        • Collaborate
        • Help
      • Task Navigation Workflow
        • V8i Task Theme in OpenTunnel Designer
          • To Activate the V8i Task Theme in OpenTunnel Designer CONNECT
      • 2D Sketcher Workflow
        • Profile Tools
          • Tunnel Catalog/Tunnel Templates
          • Portal Catalog/Portal Templates
          • Excavation Subspaces Catalog/Excavation Subspaces Templates
          • Reinforcement Catalog/Reinforcement Templates
          • Jet Grouting - Crown&Floor
          • Forepoles - Circle and Region
          • Fiber Glass and Rock Bolts
          • Auxiliaries Catalog/Auxiliaries Templates
      • Geotechnical Extension
    • Projects
      • To Create a New WorkSpace
      • To Create a New WorkSet
      • To Create a WorkSet from a Template WorkSet
      • ProjectWise Project Association
        • To Assign a ProjectWise Project to a WorkSet
        • Register a ProjectWise Project
      • To create a new project
      • To Add a Tunnel Corridor
      • To Add a Multi Units
      • To Add a Tunnel Unit
      • Civil Elements
        • To Import Civil Geometry
        • To Create Transverse Alignment
        • To Import Soil Meshes
        • To reference civil data
        • To Assign Soil Properties to Imported Meshes
        • To Set the Active Terrain
      • Templates
        • To Create a New Template
        • Template Drawing Rules
        • Tunnel Geometry
        • Geometry Constraints
        • Tunnel Lining
      • To Move a Tunnel Corridor to a New Station
    • Modeling
      • ReferenceLines
        • To Place Referenceline by Midpoint
        • To Place a Parallel Referenceline
        • To Place a Multiple Referencelines
        • To Move a Referenceline
        • To Modify a Referenceline
      • Conventional Tunnels Modeling
        • Tunnel Transition
      • Mechanized (TBM) Tunnels Modeling
        • TBM UTR (Universal Tapered Ring)
        • TBM UTR As Built (Universal Tapered Ring As Built)
      • Tunnel Intersection
        • Erase Tunnel Intersections
      • Tunnel Trim
        • Erase Tunnel Trims
      • Excavation Subspaces Modeling
      • Reinforcement Modeling
        • How to Define Shotcrete as Permanent/Temporary Walls
        • How to Define Jet Grouting
        • How to Define Forepoles
        • How to Define Fiber Glass
        • How to Define Rock Bolts
        • How to Define Piles
        • How to Define Steel Arches
        • How to Place Excavation Subspaces and Reinforcement
      • Construction Scheduler
      • Auxiliary Modeling
        • How to Define Auxiliaries
        • How to Place Auxiliaries
          • Place by Extrusion
          • Place by Path
          • Place by Station
      • Singularities Modeling
        • How to Define Portals
        • How to Define Shafts
        • How to Define Rooms
        • How to Define Custom Complex Singularities Shapes
        • How to Place Portals
        • How to Place Shafts
        • How to Place Rooms
      • Using Clash Detection
        • Calculating Clashes
        • To set up a clash detection job
        • To select criteria for clash detection operation
        • To run a self check clash detection
        • To set up suppression rules
        • To execute the clash detection
        • To review the clash results
        • To group clash results
        • To export clash results to a spreadsheet
        • To export clash results to a GPX File
        • To share clash detection jobs and rules
    • Interoperability
      • Assumptions and Limitations When Exporting to PLAXIS
      • PLAXIS Transfer
        • To Send to PLAXIS 2D
        • To Send to PLAXIS 3D
    • Reports
      • To Generate an Input Echo Report
      • To Generate a Quantities Report
      • To Generate TBM UTR Reports
      • To Generate TBM UTR As Built Reports
      • To Generate Construction Scheduler Report
    • TBM UTR Drawings
      • Settings
      • UTR Unfolded View
      • UTR Ring Positions
    • OpenRoads Designer
    • MicroStation
    • ProStructures
    • Tutorials
    • OpenTunnel Designer Readme
      • Before You Begin
      • What's New
      • General Info
      • Installation
        • Installation Requirements
        • System Requirements
        • QuickInstall Guide
          • Before You Start
          • Configuration Changes
            • The ConfigurationSetup.cfg Configuration File
            • The WorkSpaceSetup.cfg Configuration File
          • Installing OpenTunnel Designer from CONNECTION Client
          • To Install OpenTunnel Designer
          • Redirecting the Package Cache
          • Log Files
          • Command Line Options
          • To Make Changes to the Installed OpenTunnel Designer
          • To Repair OpenTunnel Designer
        • Deployment Guide
          • Deployment Settings
          • To Create a Deployment Image
          • To Install the Application Using the Deployment Image
        • Activating Your Product
      • Legal
        • Trademark Notice
        • Copyright Notice
      • Bentley Information
        • Support Path
        • Bentley Headquarters
      • Links
      • Security Release Notes
  1. OpenTunnel Designer Help
  2. OpenTunnel Designer Workflows
  3. Drawing Workflow
  4. Attach Tab
  5. External Database Interface
  6. Database Interface Reference
  7. Database Toolbox
  8. Show Active Entity Tool
  9. To Display the Active Entity

To Display the Active Entity

Select the Show Active Entity tool.

The database row corresponding to the Active Entity displays in the SQL Window.