I am a script dummy however this is what I use. Just uses cut command to get
rid of everything after the decimal point
temp_integer=`echo $temp_float |cut -f1 -d'.'`
----- Original Message -----
From: Paul Alfille
To: C. Schumann
Cc: [email protected]
Sent: Sunday, July 15, 2007 8:52 AM
Subject: Re: [Owfs-developers] floating point to integer
Hi Christian,
I am well.
There are many answers to your question.
1. "bd" is a venerable command line program that handles real numbers.
2. All the languanges (perl, python, php, tcl, vb, ...) handle owfs (or
owserver) and real numbers
3. It would be easy to add a command line switch to round off.
4. Adding the switch might make for some unexpected results -- suppose you
connect to a bunch of owservers, one of which has the --roundoff flag?
5. Should we round off all real numbers ( temperature, humidity, voltage,
current ) or just temperature?
Paul Alfille
On 7/14/07, C.Schumann wrote:
Dear Paul,
hope you're fine !!
Thanks for your great OWFS projekt !!
I'm in touch with Christian Magnuson at the moment but we're still looking
for a simple solution of a tricky prolblem that shouldn't be any in last
consequece ...
I'm working with X-WRT and the webif2 (great thing for dummies like me) on
an ASUS 500 DL.
I wanna use some 1wire switches depending on different temperature values
of the sensors I've installed within my solar heating system.
The simple script language is only working with integer values for
comparing values but the OWFS is that brilliant giving me floating point values
with sometimes 3 digits after the point.
That's great for measurements but unfortunately I can't use this values for
my script comparements.
Is there a simple way for getting pure integer values out of the OWFS data
?
It would be great also to detect the first digit behind the decimal point
for making a decision to round up or down the value but this only secondary ...
Working with "owread" often gives me "data error" arguments; Think this is
a timing depending story, I'm working with a DS9480 ?? USB interface.
Where do I have to deklare the measurement time (may be 1000 mS); is it to
be deklared in the OWSERVER configsheet or when calling an OWREAD instruction ?
Sorry for bothering on this, may be old story but I didn't found any anwers
until now in the internet; may be I can write down some notes for the OWFS
pages later on to push this very great idea and solution ?
Thanks for your reply at your earliest convencience !!
Christian Schumann, germany
------------------------------------------------------------------------------
-------------------------------------------------------------------------
This SF.net email is sponsored by DB2 Express
Download DB2 Express C - the FREE version of DB2 express and take
control of your XML. No limits. Just data. Click to get it now.
http://sourceforge.net/powerbar/db2/
------------------------------------------------------------------------------
_______________________________________________
Owfs-developers mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/owfs-developers
-------------------------------------------------------------------------
This SF.net email is sponsored by DB2 Express
Download DB2 Express C - the FREE version of DB2 express and take
control of your XML. No limits. Just data. Click to get it now.
http://sourceforge.net/powerbar/db2/
_______________________________________________
Owfs-developers mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/owfs-developers
