public static BasFeatureEntity Convert(BasEntity entity)
{
BasFeatureEntity basFeature = new BasFeatureEntity();
basFeature.Offset = entity.Offset;
ReadColumns(basFeature, entity.HeaderResult);
ReadGeometry(basFeature, entity.CoordinatesResult);
ReadAnnocation(basFeature, entity.AnnotationsResult);
return(basFeature);
}
public BasFeatureEntity GetFeatureEntityByOffset(long offset)
{
BasFeatureEntity feature = null;
basReader.BaseStream.Seek(offset, SeekOrigin.Begin);
BasEntity entity = BasEntityParser.Parse(basReader);
if (entity != null)
{
feature = BasEntityToFeatureEntityConverter.Convert(entity);
}
return(feature);
}
public Collection <BasFeatureEntity> GetAllFeatureEntities()
{
Collection <BasFeatureEntity> features = new Collection <BasFeatureEntity>();
basReader.BaseStream.Seek(0, SeekOrigin.Begin);
while (basReader.BaseStream.Position != -1 && basReader.BaseStream.Length - basReader.BaseStream.Position > 80)
{
BasEntity entity = BasEntityParser.Parse(basReader);
if (entity != null)
{
features.Add(BasEntityToFeatureEntityConverter.Convert(entity));
}
}
return(features);
}
public Collection <string> GetColumns()
{
Collection <string> allColumns = new Collection <string>();
basReader.BaseStream.Seek(0, SeekOrigin.Begin);
BasEntity firstRecord = BasEntityParser.Parse(basReader);
if (firstRecord != null)
{
foreach (var column in Enum.GetValues(typeof(BasDefaultColumns)))
{
allColumns.Add(column.ToString());
}
foreach (var column in firstRecord.HeaderResult.VariableData.Keys)
{
allColumns.Add(column);
}
}
return(allColumns);
}
public static BasEntity Parse(BinaryReader br)
{
BasEntity entity = new BasEntity();
entity.Offset = br.BaseStream.Position;
entity.HeaderResult = ReadHeader(br);
if (br.BaseStream.Length - br.BaseStream.Position > 2)
{
br.BaseStream.Seek(2, SeekOrigin.Current); // Skip "\r\n"
}
do
{
BasRecordType.DataType type = BasHelper.GetType(br);
if (type == BasRecordType.DataType.Annotation)
{
entity.AnnotationsResult.Add(ReadAnnotation(br));
}
else if (type == BasRecordType.DataType.Coordinate)
{
entity.CoordinatesResult.Add(ReadCoordinate(br));
}
else
{
break;
}
// Skip "\r\n"
if (br.BaseStream.Length - br.BaseStream.Position > 2)
{
br.BaseStream.Seek(2, SeekOrigin.Current);
}
}while (true);
return(entity);
}
