The topological dimension of a geometry.

Constant | Value | Description |
---|---|---|

esriGeometry0Dimension |
1 | A zero dimensional geometry (such as a point or multipoint). |

esriGeometry1Dimension |
2 | A one dimensional geometry (such as a polyline). |

esriGeometry2Dimension |
4 | A two dimensional geometry (such as a polygon). |

esriGeometry25Dimension |
5 | A 2.5D geometry (such as a surface mesh). |

esriGeometry3Dimension |
6 | A 3D geometry. |

esriGeometryNoDimension |
-1 | The dimension is unknown or unspecified. |

#### Product Availability

#### Remarks

Describes the dimensionality of the geometry object. Each dimension corresponds to a direction of orthogonal movement. Therefore, Zero Dimensions describes a point with no extent beyond the point itself. One Dimension describes a line where the dimension of movement extends along the length of the line. Two Dimensions describes a surface where the movement can occur along two parametric orthogonal axes to create an Area. Three Dimensions describes a space with three parametric directions of movement (height, width, and depth). 2.5 Dimensions is a pseudo-dimensional construct that refers to a functional surface, represented by a planar Two Dimensional object with Z attributes. A No Dimensional object (not to be confused with a Zero Dimensional point) is an object for which dimensionality is not properly defined.

**esriGeometry0Dimension =** Points and Multipoints

**esriGeometry1Dimension =** Segments, Paths, and Polylines

**esriGeometry2Dimension =** Envelopes, Rings, Polygons and Multipatches

**esriGeometry25Dimension =** ZAware esriGeometry2Dimension objects

**esriGeometry3Dimension =** New upcoming geometry type

**esriGeometryNoDimension = **GeometryBags