Hallo NG,
a few jears ago i made myself in c++ a funktion to convert 4 Byte to one
float variable:
//############### ############### ############### ##############
// Make from 4 Bytes one float variable wich is 4 bytes long
//############### ############### ############### ##############
float CAtgGalvanoMach ine::Convert4By tesToFloat(BYTE byte1, BYTE byte2, BYTE
byte3, BYTE byte4)
{
DWORD l,ll,m,e;
float returnvalue=0,m antisse=0;
l = byte1;
l = l << 24;
ll = byte2;
l = l | (ll << 16);
ll = byte3;
l = l | (ll << 8);
ll = byte4;
l = l | ll;
e=l&0x7f800000;
e>>=23;
m=l&0x7fffff;
for(int i=0; i<=23;i++)
{
if(TestBit(m,un signed int(ldexp(1,i)) ))
{
mantisse+=float ((ldexp(1, i-23)));
}
}
returnvalue=flo at(ldexp(1+mant isse, e-127));
return returnvalue;
}
Is their now a ready function in the framework?
and for the other way float to 4 bytes?
Regards
Michael 3 54816
>Is their now a ready function in the framework? and for the other way float to 4 bytes?
Use the System.BitConve rter class.
Mattias
--
Mattias Sjögren [MVP] mattias @ mvps.org http://www.msjogren.net/dotnet/
Please reply only to the newsgroup.
> but how do I Convert this Byte array back into float? Their is a method for double :
BitConvert.ToDo uble(bytearray)
but this requiers a 8 Byte array. Theirs no BitConvert.ToFl oat()
Try BitConverter.To Single()
This is a single precision IEEE-754 floating point number (a float in other
words)
Oscar.
Thanks,
thats it
Regards
Michael
"Oscar Papel" <oe*****@rogers .com> schrieb im Newsbeitrag
news:O6******** ******@TK2MSFTN GP12.phx.gbl... but how do I Convert this Byte array back into float?
Their is a method for double :
BitConvert.ToDo uble(bytearray)
but this requiers a 8 Byte array. Theirs no BitConvert.ToFl oat() Try BitConverter.To Single()
This is a single precision IEEE-754 floating point number (a float in
other words)
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