Feature classes are based on pre-defined types. These types define the default properties and geometry of the feature class. Types are defined in the Autodesk.Map.IM.Data.FeatureClassType enumeration. The possible values are:
| Point | Represents a standalone point. |
| Centroid | Represents the geographic center point of the associated polygon feature class. |
| LineString | Represents a polyline - a connected series of line and arc segments. |
| Polygon | Represents a closed figure made of lines, arcs, and LineString elements. |
| Label | Represents a text string located relative to a standalone point location. |
| Collection | Represents a feature class containing a combination of Points, LineStrings, or Polygons. |
| Attribute | Represents a feature class without geometry. |
| CompoundPolygon | Represents multiple Polygon or LineString features, each with different attributes. |
| CompoundLineString | Represents multiple LineString features, each with different attributes. |
| Dimension | Represents a feature class that can store the Dimension Features; t is child from an Attribute feature class and parent from a Label feature class. |