SURFACE

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SUN

ENTITIES Section

Extruded Surface

SURFACE

Surface entity definitions consist of group codes that are common to all surface types, followed by codes specific to the type.

Common Surface group codes
Group code	Description
100	Subclass marker (AcDbModelerGeometry)
70	Modeler format version number (currently = 1)
1	Proprietary data (multiple lines < 255 characters each)
3	Additional lines of proprietary data (if previous group 1 string is greater than 255 characters) (optional)
100	Subclass markar (AcDbSurface)
71	Number of U isolines
72	Number of V isolines

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