Mapping Between Geometry and Geometric Types

The FDO API GeometricType enumeration of GeometricProperty gives the client application some knowledge of which geometry types comprise the geometric property so that it can present the user with an intelligent editor for selecting styles for rendering the geometry. In particular, GeometricType relates to shape dimensionality of geometries allowed in FDO geometric properties. The nearest analogues in the Geometry API are:

GisDimensionality, which pertains to ordinate (not shape) dimensionality of geometry values.
GisGeometryType, which has types whose abstract base types map to Geometric Type

The GeometricType enumeration is as follows:

Point = 0x01, // Point Type Geometry
Curve = 0x02, // Line and Curve Type Geometry
Surface = 0x04, // Surface (or Area) Type Geometry
Solid = 0x08, // Solid Type Geometry

NoteThe enumeration defines a bit mask and the GetGeometricTypes and SetGeometricTypes methods take and return an integer. This is to allow a geometry property to be of more than one type. For example, the call: geometricProperty.SetGeometricTypes(Point | Surface); would allow the geometric property to represent either point type geometry or surface type geometry (polygons).