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DGN (also RDL) is a file format common to Intergraph's MicroStation and Interactive Graphics Design System (IGDS) CAD applications running on Intergraph workstations and PCs.
This file format is not supported in the non-vector toolkits. Read support for this format is provided in the LEADTOOLS Vector Imaging Pro toolkit and is unlocked when the Vector features are unlocked.
LEADTOOLS supports DGN versions 1, 2 and 3.
The file constants associated with this file format are:
| Constant | Read Support | Write Support | Description |
| IntergraphVector | Yes | Yes | Intergraph MicroStation and Interactive Graphics Design (DGN). |
When DGN files are rasterized, they are 24 BPP.
The following table indicates which objects LEAD can load and which objects it can save:
| Object: | Load: | Save: |
| Arc | Supported | Not Supported. Saved as polyline. |
| Ellipse | Supported | Not Supported. Saved as polyline. |
| Lines | Supported | Not Supported. Saved as polyline. |
| Polygons | Supported | Supported |
| Polyline | Supported | Supported |
| Raster | Supported | Supported |
| Text | Supported | Not Supported. |
| Elliptical Arc | Supported | Not Supported. Saved as polyline. |
| Circle | Supported | Not Supported. Saved as ellipse. |
Required DLL: Leadtools.Vector.dll and Leadtools.Codecs.Dgn.dll. For a listing of the exact DLLs needed, based on the toolkit version, refer to Files To Be Included With Your Application .
Related Formats: CGM - Computer Graphics Metafile, CMX - Corel Presentation Exchange Format, DRW - Micrografx Designer DRaWing, DWF - DWF Format, DWG - DWG Format, DXF - Drawing Interchange Format, EMF - Windows Metafile Formats, GBR - Gerber Format, PCL - Printer Command Language Format, PCT - Macintosh Pict Format, PDF - Portable Document Format, PLT - PLT / HPGL Format, PS - PostScript Document Format, RTF - Rich Text Format, SHP - ESRI Shape Format, SVG - Scalable Vector Graphics Format, WPG - WordPerfect Vector Format, WMF - Windows Metafile Formats, WMZ - Compressed Windows Metafile Format, NAP - North American Presentation Layer Protocol Syntax (NAPLPS), E00 - ArcInfo Interchange File Format, MIF - MapInfo Interchange File Format.
Platforms: .NET 2/3, .NET 4