internal static ChannelConversionBlock Read(Mdf mdf, Stream stream, uint position)
{
stream.Position = position;
var block = new ChannelConversionBlock(mdf);
block.Read(stream);
var data = new byte[block.Size - 4];
var read = stream.Read(data, 0, data.Length);
if (read != data.Length)
{
throw new FormatException();
}
block.PhysicalValueRangeValid = BitConverter.ToInt16(data, 0) != 0;
block.MinPhysicalValue = BitConverter.ToDouble(data, 2);
block.MaxPhysicalValue = BitConverter.ToDouble(data, 10);
block.PhysicalUnit = mdf.IDBlock.Encoding.GetString(data, 18, 20).Humanize();
block.ConversionType = (ConversionType)BitConverter.ToUInt16(data, 38);
block.SizeInformation = BitConverter.ToUInt16(data, 40);
if (block.SizeInformation > 0)
{
block.AdditionalConversionData.Data = new byte[ConversionData.GetEstimatedParametersSize(block.ConversionType)];
Array.Copy(data, 42, block.AdditionalConversionData.Data, 0, block.AdditionalConversionData.Data.Length);
}
return(block);
}
internal override void Write(byte[] array, ref int index)
{
base.Write(array, ref index);
var bytesValueRange = BitConverter.GetBytes(PhysicalValueRangeValid);
var bytesMinValue = BitConverter.GetBytes(MinPhysicalValue);
var bytesMaxValue = BitConverter.GetBytes(MaxPhysicalValue);
var bytesPhyUnit = Mdf.IDBlock.Encoding.GetBytes(PhysicalUnit);
var bytesConversionType = BitConverter.GetBytes((ushort)ConversionType);
Array.Copy(bytesValueRange, 0, array, index + 4, bytesValueRange.Length);
Array.Copy(bytesMinValue, 0, array, index + 6, bytesMinValue.Length);
Array.Copy(bytesMaxValue, 0, array, index + 14, bytesMaxValue.Length);
Array.Copy(bytesPhyUnit, 0, array, index + 22, bytesPhyUnit.Length);
Array.Copy(bytesConversionType, 0, array, index + 42, bytesConversionType.Length);
if (AdditionalConversionData.Data != null && AdditionalConversionData.Data.Length > 0)
{
var bytesSizeInformation = BitConverter.GetBytes(ConversionData.GetEstimatedParametersCount(ConversionType));
Array.Copy(bytesSizeInformation, 0, array, index + 44, bytesSizeInformation.Length);
Array.Copy(AdditionalConversionData.Data, 0, array, index + 46, AdditionalConversionData.Data.Length);
}
index += GetSize();
}
private ChannelConversionBlock(Mdf mdf) : base(mdf)
{
AdditionalConversionData = new ConversionData(this);
}
