Provides access to members that define two dimensional points.

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

A Point is a zero-dimensional object that represents a specific (X, Y) location in a the two-dimensional XY-Plane. A Point may also have Z, M, and ID attributes associated with it. Existence of attributes does not alter the dimensionality of a Point nor does it alter geometric calculations performed on the Point. Attributes are only considered for attribute calculations when the Point is ZAware, MAware, or PointIDAware. Points may be constructed using PutCoords, individually setting the X and Y properties, or using the IConstructPoint interface.

Description |
||
---|---|---|

Compare | Compares X, Y, M, Z, ID of this point (in that order) with that of the other point. Returns -1 if this point's value is less, 1 if greater, and 0 otherwise. Useful for sorting a group of points. | |

ConstrainAngle | Projects this point to the point on the infinite line defined by anchor and angle (in radians). If allowOpposite is true, then the point can also snap to angle + pi radians. | |

ConstrainDistance | Projects this point to the perimeter of the circle defined by radius and anchor. | |

Dimension | The topological dimension of this geometry. | |

Envelope | Creates a copy of this geometry's envelope and returns it. | |

GeometryType | The type of this geometry. | |

GeoNormalize | Shifts longitudes, if need be, into a continuous range of 360 degrees. | |

GeoNormalizeFromLongitude | Normalizes longitudes into a continuous range containing the longitude. This method is obsolete. | |

ID | The Point ID attribute. | |

IsEmpty | Indicates whether this geometry contains any points. | |

M | The measure attribute. | |

Project | Projects this geometry into a new spatial reference. | |

PutCoords | Sets the X and Y coordinates. | |

QueryCoords | Returns the X and Y coordinates. | |

QueryEnvelope | Copies this geometry's envelope properties into the specified envelope. | |

SetEmpty | Removes all points from this geometry. | |

SnapToSpatialReference | Moves points of this geometry so that they can be represented in the precision of the geometry's associated spatial reference system. | |

SpatialReference | The spatial reference associated with this geometry. | |

X | The X coordinate. | |

Y | The Y coordinate. | |

Z | The Z attribute. |

Interfaces | Description |
---|---|

IGeometry | Provides access to members that describe properties and behavior of all geometric objects. |

CoClasses and Classes | Description |
---|---|

Point | A two dimensional point, optionally with measure, height, and ID attributes. |

IGeometry Interface | IMultipoint Interface | IConstructPoint Interface