async static public Task <IFeatureClass> Create(SdeDataset dataset, string name, string multiVersionedViewName)
{
var featureClass = new SdeFeatureClass();
if (dataset.RepoProvider == null)
{
throw new Exception("FeatureClass: Repository not initialized");
}
featureClass._name = name;
featureClass._geomType = await dataset.RepoProvider.FeatureClassGeometryType(featureClass);
featureClass._fields = await dataset.RepoProvider.FeatureClassFields(featureClass);
featureClass._idfield = featureClass._fields.ToEnumerable()
.Where(f => f.type == FieldType.ID)
.FirstOrDefault()?.name;
featureClass._shapefield = featureClass._fields.ToEnumerable()
.Where(f => f.type == FieldType.Shape)
.FirstOrDefault()?.name;
if (!String.IsNullOrEmpty(featureClass._shapefield))
{
switch (featureClass._geomType)
{
case geometryType.Polygon:
featureClass._fields.Add(new Field($"{ featureClass._shapefield }.STArea()", FieldType.Double));
featureClass._fields.Add(new Field($"{ featureClass._shapefield }.STLength()", FieldType.Double));
break;
case geometryType.Polyline:
featureClass._fields.Add(new Field($"{ featureClass._shapefield }.STLength()", FieldType.Double));
break;
}
}
featureClass._dataset = dataset;
if (featureClass._sRef == null && await dataset.RepoProvider.FeatureClassSpatialReference(featureClass) > 0)
{
featureClass._sRef = gView.Framework.Geometry.SpatialReference.FromID("epsg:" + await dataset.RepoProvider.FeatureClassSpatialReference(featureClass));
}
featureClass.MultiVersionedViewName = multiVersionedViewName;
return(featureClass);
}
public SdeFeatureClass(SdeDataset dataset, string name)
{
if (dataset.RepoProvider == null)
{
throw new Exception("FeatureClass: Repository not initialized");
}
_name = name;
_geomType = dataset.RepoProvider.FeatureClassGeometryType(this);
_fields = dataset.RepoProvider.FeatureClassFields(this);
_idfield = _fields.ToEnumerable().Where(f => f.type == FieldType.ID).FirstOrDefault()?.name;
_shapefield = _fields.ToEnumerable().Where(f => f.type == FieldType.Shape).FirstOrDefault()?.name;
_dataset = dataset;
if (_sRef == null && dataset.RepoProvider.FeatureClassSpatialReference(this) > 0)
{
_sRef = gView.Framework.Geometry.SpatialReference.FromID("epsg:" + dataset.RepoProvider.FeatureClassSpatialReference(this));
}
}
