DGN (DGN)

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 Imaging Pro toolkits. Read support for this format is provided in the Document and Medical Imaging toolkits.

LEADTOOLS supports DGN versions 1, 2 and 3.

LEADTOOLS supports loading this format as a raster image, vector image, or SVG (Scalable Vector Graphics) document.

The file constants associated with this file format are:

Constant	Read Support	Write Support	Description
FILE_INTERGRAPH_VECTOR	Yes	Yes	[123] Intergraph MicroStation and Interactive Graphics Design.

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.