FeatureClassDescription Class
Represents a mechanism to create a
ArcGIS.Core.Data.FeatureClass.
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Creating a FeatureDataset with a FeatureClass in one operation
public void CreateFeatureDatasetWithFeatureClassSnippet(Geodatabase geodatabase)
{
// Creating a FeatureDataset named as 'Parcel_Information' and a FeatureClass with name 'Parcels' in one operation
string featureDatasetName = "Parcel_Information";
string featureClassName = "Parcels";
SchemaBuilder schemaBuilder = new SchemaBuilder(geodatabase);
// Create a FeatureDataset token
FeatureDatasetDescription featureDatasetDescription = new FeatureDatasetDescription(featureDatasetName, SpatialReferences.WGS84);
FeatureDatasetToken featureDatasetToken = schemaBuilder.Create(featureDatasetDescription);
// Create a FeatureClass description
FeatureClassDescription featureClassDescription = new FeatureClassDescription(featureClassName,
new List<FieldDescription>()
{
new FieldDescription("Id", FieldType.Integer),
new FieldDescription("Address", FieldType.String)
},
new ShapeDescription(GeometryType.Point, SpatialReferences.WGS84));
// Create a FeatureClass inside a FeatureDataset
FeatureClassToken featureClassToken = schemaBuilder.Create(new FeatureDatasetDescription(featureDatasetToken), featureClassDescription);
// Build status
bool buildStatus = schemaBuilder.Build();
// Build errors
if (!buildStatus)
{
IReadOnlyList<string> errors = schemaBuilder.ErrorMessages;
}
}
Creating a FeatureClass in existing FeatureDataset
public void CreateFeatureClassInsideFeatureDatasetSnippet(Geodatabase geodatabase)
{
// Creating a FeatureClass named as 'Tax_Jurisdiction' in existing FeatureDataset with name 'Parcels_Information'
string featureDatasetName = "Parcels_Information";
string featureClassName = "Tax_Jurisdiction";
// Create a FeatureClass description
FeatureClassDescription featureClassDescription = new FeatureClassDescription(featureClassName,
new List<FieldDescription>()
{
new FieldDescription("Tax_Id", FieldType.Integer),
new FieldDescription("Address", FieldType.String)
},
new ShapeDescription(GeometryType.Point, SpatialReferences.WGS84));
FeatureDatasetDefinition featureDatasetDefinition = geodatabase.GetDefinition<FeatureDatasetDefinition>(featureDatasetName);
SchemaBuilder schemaBuilder = new SchemaBuilder(geodatabase);
// Create a FeatureClass inside a FeatureDataset using a FeatureDatasetDefinition
schemaBuilder.Create(new FeatureDatasetDescription(featureDatasetDefinition), featureClassDescription);
// Build status
bool buildStatus = schemaBuilder.Build();
// Build errors
if (!buildStatus)
{
IReadOnlyList<string> errors = schemaBuilder.ErrorMessages;
}
}
Adding a Field that uses a domain
public void AddFieldWithDomainSnippet(Geodatabase geodatabase)
{
// Adding a field,'PipeType', which uses the coded value domain to the 'Pipes' FeatureClass
//The FeatureClass to add field
string featureClassName = "Pipes";
SchemaBuilder schemaBuilder = new SchemaBuilder(geodatabase);
// Create a CodedValueDomain description for water pipes
CodedValueDomainDescription pipeDomainDescription =
new CodedValueDomainDescription("WaterPipeTypes", FieldType.String,
new SortedList<object, string> { { "C_1", "Copper" },
{ "S_2", "Steel" } })
{
SplitPolicy = SplitPolicy.Duplicate,
MergePolicy = MergePolicy.DefaultValue
};
// Create a coded value domain token
CodedValueDomainToken codedValueDomainToken = schemaBuilder.Create(pipeDomainDescription);
// Create a new description from domain token
CodedValueDomainDescription codedValueDomainDescription = new CodedValueDomainDescription(codedValueDomainToken);
// Create a field named as 'PipeType' using a domain description
FieldDescription domainFieldDescription = new FieldDescription("PipeType", FieldType.String)
{ DomainDescription = codedValueDomainDescription };
//Retrieve existing information for 'Pipes' FeatureClass
FeatureClassDefinition originalFeatureClassDefinition = geodatabase.GetDefinition<FeatureClassDefinition>(featureClassName);
FeatureClassDescription originalFeatureClassDescription =
new FeatureClassDescription(originalFeatureClassDefinition);
// Add domain field on existing fields
List<FieldDescription> modifiedFieldDescriptions = new List<FieldDescription>(originalFeatureClassDescription.FieldDescriptions) { domainFieldDescription };
// Create a new description with updated fields for 'Pipes' FeatureClass
FeatureClassDescription featureClassDescription =
new FeatureClassDescription(originalFeatureClassDescription.Name, modifiedFieldDescriptions,
originalFeatureClassDescription.ShapeDescription);
// Update the 'Pipes' FeatureClass with domain field
schemaBuilder.Modify(featureClassDescription);
// Build status
bool buildStatus = schemaBuilder.Build();
// Build errors
if (!buildStatus)
{
IReadOnlyList<string> errors = schemaBuilder.ErrorMessages;
}
}
Target Platforms: Windows 11, Windows 10
ArcGIS Pro version: 3.0 or higher.