| Full Name | MicroStation Drawing |
| Format ID | IG_FORMAT_DGN = 73 |
| File Extension(s) | *.dgn |
| Data Type | Vector image |
| Data Encoding | Binary |
| Color Profile Support | No |
| Multi-Page Support | No |
| Alpha Channel Support | No |
| ImageGear 3D Image Support | Yes |
| ImageGear Raster to Vector Format Conversion Support | No |
| ImageGear Unicode Text Display Support | No |
IG_FLTR_DETECTSUPPORT - autodetection
IG_FLTR_PAGEREADSUPPORT - single page file reading
IG_COMPRESSION_NONE - Vector/CAD data
No
| Filter Control Parameter | Type | Default Value | Available Values | Description |
|---|---|---|---|---|
| BACKCOLOR | AT_INT32 | 0 | Any positive value | This parameter sets view background color for image reading. If 0, black background color is set, otherwise white background color is set. |
| WIDTH | AT_INT32 | 512 | Any positive value | Defines the width of the empty DIB associated with the image after loading. DIB height is calculated using the file's scale factors. See Working with Vector Images. |
DGN is a CAD file format used by Intergraph IGDS CAD software. It is not as commonly used as some other CAD file formats, but it has an open specification.
|
DGN Element |
Supported Attributes |
Imported into ImageGear as: |
|
Shared cell definition |
Cell name |
IG_VECT_ENT_BLOCK entity. |
|
Shared cell instance |
Cell name Transformation matrix |
IG_VECT_ENT_BLOCK entity that appends the shared cell definition to its container and is made current. |
|
Shape |
Points Color Line type |
IG_VECT_ENT_POLYLINE entity. |
|
Cell header |
Cell name |
IG_VECT_ENT_BLOCK entity. |
|
Line string |
Points Color Line type |
IG_VECT_ENT_POLYLINE entity. |
|
Curve |
Points Color Line type |
IG_VECT_ENT_POLYLINE entity. |
|
B-spline surface |
Order Rational flag Poles Knots Rule lines Color Line type |
IG_VECT_ENT_NURBS_SURFACE entity. |
|
Text |
Font Alignment Width Height Rotation Text string Color |
IG_VECT_ENT_TEXT entity. |
|
Arc |
Start angle End angle X Radius Y Radius Rotation Center Color Line type |
IG_VECT_ENT_ARC entity. |
|
Ellipse |
X Radius Y Radius Rotation Center Color Line type |
IG_VECT_ENT_ELLIPSE entity. |
|
Line |
Start point End point Color Line type |
IG_VECT_ENT_EASYLINE entity. |
|
Group data: Named View level |
Origin Matrix |
Several HIG_VECT_VIEW objects. |
|
Group data: Color table level |
256 color values |
Used as a palette internally. |
|
Level symbology |
|
HIG_VECT_LAYER object. |