1COMEDI_TO_PHYSICAL(3) Comedi reference COMEDI_TO_PHYSICAL(3)
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6 comedi_to_physical - convert sample to physical units using polynomials
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9 #include <comedilib.h>
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11 double comedi_to_physical(lsampl_t data,
12 const comedi_polynomial_t * conversion_polynomial);
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15 Converts data given in Comedi's integer sample values (lsampl_t,
16 between 0 and maxdata) into physical units (double). The
17 conversion_polynomial parameter is obtained from either
18 comedi_get_hardcal_converter or comedi_get_softcal_converter. No range
19 checking of the input data is performed. It is up to you to check for
20 data values of 0 or maxdata if you want to detect possibly out-of-range
21 readings.
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24 Physical value corresponding to the input sample value.
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27 David Schleef <ds@schleef.org>
28 Author.
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30 Frank Mori Hess <fmhess@users.sourceforge.net>
31 Author.
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33 Herman Bruyninckx <Herman.Bruyninckx@mech.kuleuven.ac.be>
34 Author.
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36 Bernd Porr <tech@linux-usb-daq.co.uk>
37 Author.
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39 Ian Abbott <abbotti@mev.co.uk>
40 Author.
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42 Éric Piel <piel@delmic.com>
43 Author.
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46 Copyright © 1998-2003 David Schleef
47 Copyright © 2001-2003, 2005, 2008 Frank Mori Hess
48 Copyright © 2002-2003 Herman Bruyninckx
49 Copyright © 2012 Bernd Porr
50 Copyright © 2012 Ian Abbott
51 Copyright © 2012, 2015 Éric Piel
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53 This document is part of Comedilib. In the context of this document,
54 the term "source code" as defined by the license is interpreted as the
55 XML source.
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57 This library is free software; you can redistribute it and/or modify it
58 under the terms of the GNU Lesser General Public License as published
59 by the Free Software Foundation, version 2.1 of the License.
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61 This library is distributed in the hope that it will be useful, but
62 WITHOUT ANY WARRANTY; without even the implied warranty of
63 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
64 General Public License for more details.
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66 You should have received a copy of the GNU Lesser General Public
67 License along with this library; if not, write to the Free Software
68 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
69 USA.
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74Comedi 05/11/2017 COMEDI_TO_PHYSICAL(3)