CVA Class

CVA Class

The VA class is the 2-Dimensional analogue to the VV class. When displayed in a database, VA objects are displayed graphically as profiles, one to a cell, and can also be displayed one column of data at a time by specifying an index; e.g. CH[0]. A VA object is declared with a fixed number of columns, which cannot be altered. The number of rows, however can be changed, in the same way that the length of a VV can be changed. Data can be added or extracted using VVs, either by row or column. A VA is used to store an array of data in which each element may have multiple elements. For example, 256-channel radiometric data can be stored in a VA that is 256 elements wide.

Inheritance Hierarchy

SystemObject
GeoEngine.Core.GXNetCHANDLE
GeoEngine.Core.GXNetCVA

Namespace: GeoEngine.Core.GXNet
Assembly: geoengine.core.gxnet (in geoengine.core.gxnet.dll)

Syntax

C++

Copy

public class CVA : CHANDLE

Public Class CVA
	Inherits CHANDLE

public ref class CVA : public CHANDLE

type CVA =  
    class
        inherit CHANDLE
    end

The CVA type exposes the following members.

Methods

	Name	Description
	AddElevationsVVToDepths	Add one VV value to each row of the VA, output true elevation.
	Append	Appends VAs
	Average	Average elements in a VA by row or column
	Copy	Copy one VA to another.
	Copy2	Copy part of a vector into part of another vector.
	Create	Create a VA.
	CreateExt	Create a VA, using one of the GS_TYPESConstant special data types.
	CreateVV	Create a VA using the data in a VV.
	Dispose	Releases the unmanaged resources used by the CVA and optionally releases the managed resources (Overrides CHANDLEDispose(Boolean).)
	GetFullVV	Get the full VV from the VA.
	GetVV	Get a row or column of data as a VV from an array.
	iCheckForRepeating	Window a VA to a VV based on fractional frame
	iCheckForRepeating2	Window a VA to a VV based on fractional frame
	iCol	Return number of columns in VA
	iGetArray	Get an array of data from a VA.
	iGetInt	Get an integer element from a VA.
	IGetString	Get a string element from a VA.
	iLen	Return length (number of rows) in a VA.
	IndexOrder	Reorder a VA based on an index VV
	iSetArray	Set a range of data in an array
	LookupIndex	Lookup a VA from another VA using an index VV.
	RangeDouble	Computes the minimum and maximum range of the data, in doubles, in a vector while ignoring dummies.
	ReFid	Re-sample a VA to a new fid start/icrement
	Reverse	Reverses the order of the rows in a VA.
	rGetFidIncr	Gets the Fiducial increment from a VA
	rGetFidStart	Gets the Fiducial start from a VA
	rGetReal	Get a real element from a VA.
	SetFidIncr	Sets the Fiducial increment of a VA
	SetFidStart	Sets the Fiducial start of a VA
	SetInt	Set an integer element in a VA.
	SetLn	Set the length (number of rows) of the VA
	SetReal	Set a real element in a VA.
	SetString	Set a string element in a VA.
	SetVV	Set a row or column of data in an array from a VV.
	Trans	Translate (VA + base ) * mult
	Window	Window a VA to a VV based in intergral frame
	Window2	Window a VA to a VV based on fractional frame

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Reference

GeoEngine.Core.GXNet Namespace