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ISpatialReference.GetMDomain Method (ArcObjects .NET 10.5 SDK)
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This document is archived and information here might be outdated. Recommended version. |
| ArcObjects Help for .NET developers > ArcObjects namespaces > Geometry > ESRI.ArcGIS.Geometry > Interfaces > IS > ISpatialReference Interface > ISpatialReference.GetMDomain Method (ArcObjects .NET 10.5 SDK) |
The measure domain extent.
[Visual Basic .NET] Public Sub GetMDomain ( _ ByRef outMMin As Double, _ ByRef outMMax As Double _ )
[C#] public void GetMDomain ( ref double outMMin, ref double outMMax );
[C++]
HRESULT GetMDomain(
double* outMMin,
double* outMMax
);
[C++]
Parameters outMMin [out] outMMin is a parameter of type double outMMax [out] outMMax is a parameter of type double
An alternative method to the GetMFalseOriginAndUnits method. Returns the minimum and maximum allowed measure values for a spatial reference. Use GetMFalseOriginAndUnits to obtain the M precision (1/resolution) value.
//This code example shows how to get the M domain extent of a dataset.
//Make sure that a M domain exists
private void GetMDomain(IFeatureClass featureClass)
{
IGeoDataset geoDataset=featureClass as IGeoDataset;
//get access to SpatialReference through IGeoDataset
ISpatialReference spatialReference=geoDataset.SpatialReference;
//get the M domain extent of the dataset
double mMin;
double mMax;
spatialReference.GetMDomain(out mMin, out mMax);
System.Windows.Forms.MessageBox.Show(mMin + ", " + mMax);
}
'This code example shows how to get the M domain of a dataset.
'This example assumes that a valid workspace object has already been 'established.
Sub GetMDomain_Example(ByVal 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
'M domain of the dataset
Dim dMmin As Double
Dim dMmax As Double
'get the M domain of the dataset
pSpatRef.GetMDomain(dMmin, dMmax)
Debug.Print(dMmin & ", ", dMmax)
End Sub