File Formats: Computer Graphics Metafile (CGM)

Computer Graphics Metafile is a format used for the exchange of vector and bitmap data. This file format is supported by Autovue and Corel. LEADTOOLS supports versions 1, 2, 3 and 4 of CGM, as well as the Binary data-encoding format of CGM.

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

The following table indicates which objects LEAD can load and which objects it can save:

Object:	Load:	Save:
Cell Array	Supported	Not Supported
Circle	Supported	Not Supported
3-Point Circular Arc	Not Supported	Not Supported
Circular Arc Center	Supported	Not Supported
Ellipse	Supported	Supported
Elliptical Arc	Supported	Not Supported
Font	Supported	Supported
Lines	Supported	Supported
PolyBezier	Supported	Not Supported
Polygons	Supported	Supported
Polyline	Supported	Supported
Polymarker	Supported	Not Supported
Raster	Supported	Not Supported
Rectangle	Supported	Supported
Restricted Text	Supported	Not Supported
Text	Supported	Supported

Read and write support for this format is provided only in the Document/Medical toolkits.

The default extension used by this file format is: CGM.

This file format does not support layers.

The file constants associated with this file format are:

Constant	Read Support	Write Support	Description
Cgm	Yes	Yes	Computer Graphics Metafile.

When CGM files are rasterized, they are 24 BPP.

Required DLL: Leadtools.Vector.dll and Leadtools.Codecs.Cgm.dll. For a listing of the exact DLLs needed, based on the toolkit version, refer to Files To Be Included With Your Application .