MicroStation CAD Graphic

Use

You can import and view MicroStation CAD Graphic (.dgn) files.

DGN (design) is the name used for CAD file formats supported by Bentley Systems MicroStation and Intergraph Interactive Graphics Design System (IGDS) CAD programs. In MicroStation, a document file is called a .dgn file. A .dgn file is composed of one or more models, each of which is represented using elements such as lines, arcs, and shapes.

Supported

  • 2D vector data (text and dimensions)

  • Assembly hierarchy

  • Meshes

  • Material and object names

  • Metadata

  • Tessellation control

  • Textures

  • Layers

  • Views from file

  • Model view creation

Limitations

  • Animation

  • BoM support based on part names

  • Configurations

  • Solids, NURBS

  • UV coordinates

  • Protected files not supported

  • iModel produced DGN files not supported

Features

This format contains import options. You can use them to customize the way in which your file is opened.

Import Interface

Field

Functional Description

Common

Defines the general settings including tessellation (arrangement and density of the polygons)

  • Trim Nodes: Collapses all leaf nodes where they exist for a node

  • Import Hidden Objects: Imports all hidden objects. If you modify any visible objects that contain hidden subobjects after import, those hidden objects are also modified.

  • Display Hidden Objects: Displays all hidden objects in the viewport after importing the file

  • Construction Geometry: Defines settings for the construction geometry

  • Import Wireframes: Imports all wireframes if any exist

  • Import Metadata: Imports file metadata from the original CAD file (stored inside the file as the metadata category CADMetadata)

Tessellation Settings

Defines the tessellation settings

  • Tessellation Level: Applies different resolutions based upon preselected values for chord height ratio and normal tolerances. The available options are: Very Low, Low, Medium Low, Medium, Medium High, High, Very High.

PMI Captures Model Views

Defines settings for PMI

  • Import PMI: Imports any Product Manufacturing Information (PMI) within the file. You can access the PMI data objects from within the 3D Objects list.

  • Import Model Views: Imports any custom model views within the CAD file

Geometry Transformation
Transforms (rotate, position, and scale) the scene along the X, Y, and Z axes:

  • Rotation: Sets the degrees of rotation around each axis from 0 degrees to 360 degrees. The rotation values can be entered with up to 6 decimal places.

  • Scale: Scales the object along the X, Y, and Z axes

  • Position: Sets the position of the scene along the X, Y, and Z axes
Related Information