ERMsg CShapeFileIndex::Read(const string& filePath)
{
ERMsg msg;
m_recordsInfo.clear();
ifStream file;
msg = file.open(filePath, ios::in | ios::binary);
if (msg)
{
try
{
boost::archive::binary_iarchive io(file, boost::archive::no_header);
msg = CShapeFileHeader::ReadHeader(m_header, io);
if (msg)
{
ASSERT((m_header.GetFileLength() - 50) % 4 == 0);
int nbRecord = ((m_header.GetFileLength() - 50) / 4);
m_recordsInfo.resize(nbRecord);
for (int i = 0; i < nbRecord; i++)
{
m_recordsInfo[i].m_offset = ReadBigEndian(io);
m_recordsInfo[i].m_recordLength = ReadBigEndian(io);
}
}
}
catch (boost::archive::archive_exception e)
{
msg.ajoute(e.what());
}
file.close();
}
return msg;
}
template <typename T> void ReadInteger(T * buf, unsigned short bitCount)
{
ReadBigEndian(buf, bitCount);
};