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ISpatialReference.GetZFalseOriginAndUnits Method (ArcObjects .NET 10.4 SDK)
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This document is archived and information here might be outdated. Recommended version. |
| ArcObjects namespaces > Geometry > ESRI.ArcGIS.Geometry > Interfaces > IS > ISpatialReference Interface > ISpatialReference.GetZFalseOriginAndUnits Method (ArcObjects .NET 10.4 SDK) |
Get the Z false origin and units.
[Visual Basic .NET] Public Sub GetZFalseOriginAndUnits ( _ ByRef falseZ As Double, _ ByRef zUnits As Double _ )
[C#] public void GetZFalseOriginAndUnits ( ref double falseZ, ref double zUnits );
[C++]
HRESULT GetZFalseOriginAndUnits(
double* falseZ,
double* zUnits
);
[C++]
Parameters falseZ [out] falseZ is a parameter of type double zUnits [out] zUnits is a parameter of type double
An alternative method to the GetZDomain method. The falseZ value corresponds to the minimum Z value of the Z domain. The zUnits is the same as the precision or scale value. The inverse of the zUnits defines the resolution of the z data stored in the geodatabase. The resolution is used to snap data when it is stored in the geodatabase.
//This code example shows how to get the Z false origin and units of a dataset
//Make sure that the features in the featureClass contain falseZ values
private void GetZFalseOriginAndUnits(IFeatureClass featureClass)
{
IGeoDataset geoDataset=featureClass as IGeoDataset;
//get access to SpatialReference through IGeoDataset
ISpatialReference spatialReference=geoDataset.SpatialReference;
//get the Z false origin and units of the dataset
double falseZ;
double zUnits;
spatialReference.GetZFalseOriginAndUnits(out falseZ, out zUnits);
System.Windows.Forms.MessageBox.Show(falseZ + ", " + zUnits);
}
'This code example shows how to get the Z false origin and units of a 'dataset.
'This example assumes that a valid workspace object has already 'been established.
Sub GetZFalseOriginAndUnits_Example(ByRef pWorkspace As IWorkspace)
Dim pFeatWS As IFeatureWorkspace
pFeatWS=pWorkspace
Dim pFeatDS As IFeatureDataset
pFeatDS=pFeatWS.OpenFeatureDataset("railroad")
Dim pGeoDataset As IGeoDataset
pGeoDataset=pFeatDS
'get access to SpatialReference through IGeoDataset
Dim pSpatRef As ISpatialReference
pSpatRef=pGeoDataset.SpatialReference
'dimension variables that will be used to store the
'Z false origin and units of the dataset
Dim dFalseZ As Double
Dim dZUnits As Double
'get the Z false origin and units of the dataset
pSpatRef.GetZFalseOriginAndUnits(dFalseZ, dZUnits)
Debug.Print(dFalseZ & ", " & dZUnits)
End Sub
ISpatialReference Interface | ISpatialReferenceResolution Interface