This document is archived and information here might be outdated. Recommended version.

IHVDatum Interface (ArcObjects .NET 10.5 SDK)

ArcObjects Library Reference (Geometry)

IHVDatum Interface

Indicator interface for a horizontal or vertical.

Product Availability

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

Description

A vertical coordinate system has two types. It can either be gravity-related, which requires a VerticalDatum; or ellipsoid/spheroid-based which requires a horizontal Datum. A horizontal Datum is the same as one used for a geographic coordinate system. The IHVDatum interface supports both datum types, so the IVerticalCoordinateSystem::Define method uses IHVDatum, rather than IVerticalDatum or IDatum.

CoClasses that implement IHVDatum

CoClasses and Classes	Description
Datum	Creates a datum.
VerticalDatum	Creates a vertical datum.

.NET Related Topics

Creating a custom vertical coordinate system