private static void ReadDBFFile(string dbffilename,
List <XField> fields, List <XAttribute> attributes)
{
FileStream fsr = new FileStream(dbffilename, FileMode.Open);
BinaryReader br = new BinaryReader(fsr);
DBFHeader dh = (DBFHeader)XTools.FromBytes(br, typeof(DBFHeader));
int FieldCount = (dh.HeaderLength - 33) / 32;
//读字段结构
fields.Clear();
for (int i = 0; i < FieldCount; i++)
{
fields.Add(new XField(br));
}
byte END = br.ReadByte(); //1个字节作为记录项终止标识。
//读具体数值
attributes.Clear();
for (int i = 0; i < dh.RecordCount; i++)
{
XAttribute attribute = new XAttribute();
char tempchar = (char)br.ReadByte(); //每个记录的开始都有一个起始字节
for (int j = 0; j < FieldCount; j++)
{
attribute.AddValue(fields[j].DBFValueToObject(br));
}
attributes.Add(attribute);
}
br.Close();
fsr.Close();
}
public void WriteFile(XLayer layer, string filename)
{
FileStream fsr = new FileStream(filename, FileMode.Create);
BinaryWriter bw = new BinaryWriter(fsr);
//写文件头
WriteFileHeader(layer, bw);
//写图层名称
XTools.WriteString(layer.Name, bw);
//写属性字段结构
foreach (XField field in layer.Fields)
{
XTools.WriteString(field.datatype.ToString(), bw);
XTools.WriteString(field.name, bw);
}
//写空间对象类型
foreach (XFeature f in layer.Features)
{
WriteFeature(f, bw);
}
//关闭文件
bw.Close();
fsr.Close();
}