/// <summary>
// 创建要素数据集
/// </summary>
/// <param name="workspace"></param>
/// <param name="code"></param>
/// <param name="datasetName"></param>
/// <returns></returns>
public IFeatureDataset CreateFeatureClass(IWorkspace workspace, int code, string datasetName)
{
IFeatureWorkspace featureWorkspace = (IFeatureWorkspace)workspace;
//创建一个要素集创建一个投影
ISpatialReferenceFactory spatialRefFactory = new SpatialReferenceEnvironmentClass();
ISpatialReference spatialReference = spatialRefFactory.CreateProjectedCoordinateSystem(code);
//确定是否支持高精度存储空间
Boolean supportsHighPrecision = false;
IWorkspaceProperties workspaceProperties = (IWorkspaceProperties)workspace;
IWorkspaceProperty workspaceProperty = workspaceProperties.get_Property
(esriWorkspacePropertyGroupType.esriWorkspacePropertyGroup,
(int)esriWorkspacePropertyType.esriWorkspacePropSupportsHighPrecisionStorage);
if (workspaceProperty.IsSupported)
{
supportsHighPrecision = Convert.ToBoolean(workspaceProperty.PropertyValue);
}
//设置投影精度
IControlPrecision2 controlPrecision = (IControlPrecision2)spatialReference;
controlPrecision.IsHighPrecision = supportsHighPrecision;
//设置容差
ISpatialReferenceResolution spatialRefResolution = (ISpatialReferenceResolution)spatialReference;
spatialRefResolution.ConstructFromHorizon();
spatialRefResolution.SetDefaultXYResolution();
ISpatialReferenceTolerance spatialRefTolerance = (ISpatialReferenceTolerance)spatialReference;
spatialRefTolerance.SetDefaultXYTolerance();
//创建要素集
IFeatureDataset featureDataset = featureWorkspace.CreateFeatureDataset(datasetName, spatialReference);
return(featureDataset);
}
public static bool IsConnectedToGeodatabase(IWorkspace iworkspace_0)
{
IWorkspaceProperties properties = (IWorkspaceProperties)iworkspace_0;
return
(Convert.ToBoolean(
properties.get_Property(esriWorkspacePropertyGroupType.esriWorkspacePropertyGroup, 7).PropertyValue));
}