ArcGIS Developer Help

IZ Interface

Provides access to members that identify geometric objects that can have 3D coordinates and defines operations on such objects. Note: the IZ interface has been superseded by IZ2. Please consider using the more recent version.

Product Availability

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

Description

IZ contains methods for setting Zs through interpolation based on existing Z values, Z values set at the From and To Points, and Z values from a FunctionalSurface. Z values may also be set to a single constant value. IZ also contains a method for determining if consecutive vertices exhibit a vertical relation.

Members

	Name	Description
	CalculateNonSimpleZs	Calculates the non-simple Z values by extrapolation/interpolation for polylines and interpolation for polygons.
	InterpolateFromSurface	Use the specified functional surface to generate Z values for the vertices of this object.
	InterpolateZsBetween	Generate Z values by linear interpolation for all vertices in the range [start+1, end-1].
	MultiplyZs	Multiplies all the Z values by a factor.
	OffsetZs	Offsets all the Z values by an offset value.
	SetConstantZ	Sets Z coordinates at all vertices to zLevel.
	ZMax	The maximum Z value.
	ZMin	The minimum Z value.
	ZVertical	Indicates if at least two consecutive vertices of this polyline or polygon have the same x and y values, but distinct z values.

Inherited Interfaces

Interfaces	Description
IZCollection	Provides access to operations on Z-aware geometries.

Classes that implement IZ

Classes	Description
Polygon	A collection of rings ordered by their containment relationship; optionally has measure, height and ID attributes.
Polyline	An ordered collection of paths; optionally has measure, height and ID attributes.