private void hfzWriteHeader(ref EndianBinaryWriter writer, HfzHeader fh)
{
// copy header into buffer
writer.Write(Util.StringToByteArray("HF2", 4));
writer.Write(fh.FileVersionNo);
writer.Write(fh.nx);
writer.Write(fh.ny);
writer.Write(fh.TileSize);
writer.Write(fh.Precis);
writer.Write(fh.HorizScale);
writer.Write(fh.countExtLength());
// put extended header into a buffer
hfzHeader_EncodeExtHeaderBuf(fh, ref writer);
}
private void hfzHeader_EncodeExtHeaderBuf(HfzHeader fh, ref EndianBinaryWriter writer)
{
if (fh.nExtHeaderBlocks == 0)
{
return;
}
if (fh.countExtLength() == 0)
{
// can't have zero length
throw new Exception("Can't have a extended header of zero size");
}
HfzExtHeaderBlock pBlock;
for (int i = 0; i < fh.nExtHeaderBlocks; i++)
{
pBlock = fh.pExtHeaderBlocks.ElementAt(i);
writer.Write(Util.StringToByteArray(pBlock.BlockType, 4));
writer.Write(Util.StringToByteArray(pBlock.BlockName, 16));
writer.Write(pBlock.BlockLength);
if (pBlock.BlockLength > 0)
{
writer.Write(pBlock.pBlockData);
}
}
}