public FeatureClassV1(Dataset dataset, OSGeo_v1.OGR.Layer layer)
{
_dataset = dataset;
_ogrLayer = layer;
OSGeo_v1.OGR.FeatureDefn defn = layer.GetLayerDefn();
_name = defn.GetName();
if (dataset.ConnectionString.ToLower().EndsWith(".dxf"))
{
try
{
System.IO.FileInfo fi = new System.IO.FileInfo(dataset.ConnectionString);
_name = fi.Name;
}
catch { }
}
_fields = new Fields();
for (int i = 0; i < defn.GetFieldCount(); i++)
{
OSGeo_v1.OGR.FieldDefn fdefn = defn.GetFieldDefn(i);
Field field = new Field(fdefn.GetName());
switch (fdefn.GetFieldTypeName(fdefn.GetFieldType()).ToLower())
{
case "integer":
if (_idFieldName == String.Empty)
{
_idFieldName = field.name;
}
field.type = FieldType.integer;
break;
case "real":
field.type = FieldType.Double;
break;
case "string":
field.type = FieldType.String;
field.size = fdefn.GetWidth();
break;
}
_fields.Add(field);
}
_countFeatures = (int)layer.GetFeatureCount(1);
OSGeo_v1.OGR.Envelope env = new OSGeo_v1.OGR.Envelope();
layer.GetExtent(env, 1);
_envelope = new Envelope(env.MinX, env.MinY, env.MaxX, env.MaxY);
switch (defn.GetGeomType())
{
case OSGeo_v1.OGR.wkbGeometryType.wkbPoint:
_geomType = geometryType.Point;
break;
case OSGeo_v1.OGR.wkbGeometryType.wkbLineString:
case OSGeo_v1.OGR.wkbGeometryType.wkbMultiLineString:
_geomType = geometryType.Polyline;
break;
case OSGeo_v1.OGR.wkbGeometryType.wkbPolygon:
case OSGeo_v1.OGR.wkbGeometryType.wkbMultiPolygon:
_geomType = geometryType.Polygon;
break;
}
}