Creates a predefined parameter.
[Visual Basic .NET] Public Function CreateParameter ( _ ByVal parameterType As Integer _ ) As IParameter
[C#] public IParameter CreateParameter ( int parameterType );
[C++]
HRESULT CreateParameter(
long parameterType,
IParameter** newParameter
);
[C++]Parameters
parameterType parameterType is a parameter of type long newParameter [out, retval]newParameter is a parameter of type IParameter
Product Availability
Description
Use an element from the esriSRParameterType, esriSRParameter2Type, esriSRParameter3Type, or esriSRParameter4Type enumerations as the ParameterType to create a particular predefined parameter.
ISpatialReferenceFactory spatialReferenceFactory = new SpatialReferenceEnvironmentClass(); // Declare an array of IParameters, and for each, create the required Parameter object
// by using ISpatialReferenceFactory::CreateParamater. Then assign the parameter
// a value. Below is an example used for a Transverse Mercator projection
IParameter[] parameterArray = new IParameter[5];
parameterArray[0] = spatialReferenceFactory.CreateParameter((int)esriSRParameterType.esriSRParameter_FalseEasting);
parameterArray[0].Value = 500000;
parameterArray[1] = spatialReferenceFactory.CreateParameter((int)esriSRParameterType.esriSRParameter_FalseNorthing);
parameterArray[1].Value = 0;
parameterArray[2] = spatialReferenceFactory.CreateParameter((int)esriSRParameterType.esriSRParameter_CentralMeridian);
parameterArray[2].Value = -123;
parameterArray[3] = spatialReferenceFactory.CreateParameter((int)esriSRParameterType.esriSRParameter_LatitudeOfOrigin);
parameterArray[3].Value = 0;
parameterArray[4] = spatialReferenceFactory.CreateParameter((int)esriSRParameterType.esriSRParameter_ScaleFactor);
parameterArray[4].Value = 0.9996;
'This example shows you how to declare a safe array of IParameter,
'and for each, create the required Parameter object by using
'ISpatialReferenceFactory::CreateParameter and assign each parameter a value.
'Parameter types can be found in the esriGeometry esriSRParameterType
'enumeration. Below is an example used for a Transverse Mercator projection.
Dim pSpatRefFact As ESRI.ArcGIS.Geometry.ISpatialReferenceFactory
pSpatRefFact = New ESRI.ArcGIS.Geometry.SpatialReferenceEnvironment
Dim aParamArray(5) As ESRI.ArcGIS.Geometry.IParameter
aParamArray(0) = pSpatRefFact.CreateParameter(ESRI.ArcGIS.Geometry.esriSRParameterType.esriSRParameter_FalseEasting)
aParamArray(0).Value = 500000
aParamArray(1) = pSpatRefFact.CreateParameter(ESRI.ArcGIS.Geometry.esriSRParameterType.esriSRParameter_FalseNorthing)
aParamArray(1).Value = 0
aParamArray(2) = pSpatRefFact.CreateParameter(ESRI.ArcGIS.Geometry.esriSRParameterType.esriSRParameter_CentralMeridian)
aParamArray(2).Value = -123
aParamArray(3) = pSpatRefFact.CreateParameter(ESRI.ArcGIS.Geometry.esriSRParameterType.esriSRParameter_LatitudeOfOrigin)
aParamArray(3).Value = 0
aParamArray(4) = pSpatRefFact.CreateParameter(ESRI.ArcGIS.Geometry.esriSRParameterType.esriSRParameter_ScaleFactor)
aParamArray(4).Value = 0.9996
'Below is an example for an Albers projection:
Dim pSpatRefFact As ESRI.ArcGIS.Geometry.ISpatialReferenceFactory
pSpatRefFact = New ESRI.ArcGIS.Geometry.SpatialReferenceEnvironment
Dim aParamArray(6) As ESRI.ArcGIS.Geometry.IParameter
aParamArray(0) = pSpatRefFact.CreateParameter(ESRI.ArcGIS.Geometry.esriSRParameterType.esriSRParameter_FalseEasting)
aParamArray(0).Value = 0
aParamArray(1) = pSpatRefFact.CreateParameter(ESRI.ArcGIS.Geometry.esriSRParameterType.esriSRParameter_FalseNorthing)
aParamArray(1).Value = 0
aParamArray(2) = pSpatRefFact.CreateParameter(ESRI.ArcGIS.Geometry.esriSRParameterType.esriSRParameter_CentralMeridian)
aParamArray(2).Value = -96
aParamArray(3) = pSpatRefFact.CreateParameter(ESRI.ArcGIS.Geometry.esriSRParameterType.esriSRParameter_StandardParallel1)
aParamArray(3).Value = 29.5
aParamArray(4) = pSpatRefFact.CreateParameter(ESRI.ArcGIS.Geometry.esriSRParameterType.esriSRParameter_StandardParallel2)
aParamArray(4).Value = 45.5
aParamArray(5) = pSpatRefFact.CreateParameter(ESRI.ArcGIS.Geometry.esriSRParameterType.esriSRParameter_CentralParallel)
aParamArray(5).Value = 37.5
See Also
ISpatialReferenceFactory Interface | esriSRParameterType Constants | esriSRParameter2Type Constants | esriSRParameter3Type Constants | esriSRParameter4Type Constants