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Made comedi::calibration default constructible. Added wrapper classes

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for comedi_to/from_physical.
This commit is contained in:
Frank Mori Hess 2008-03-26 19:22:38 +00:00
parent 959b2ebcad
commit 0e3150e577
1 changed files with 33 additions and 0 deletions
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33
c++/include/comedilib.hpp
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@ -32,6 +32,36 @@ namespace comedi
{
class subdevice;
// wrapper for comedi_to_physical()
class to_physical
{
public:
to_physical(const comedi_polynomial_t &polynomial):
_polynomial(polynomial)
{}
double operator()(lsampl_t data) const
{
return comedi_to_physical(data, &_polynomial);
}
private:
comedi_polynomial_t _polynomial
};
// wrapper for comedi_from_physical()
class from_physical
{
public:
from_physical(const comedi_polynomial_t &polynomial):
_polynomial(polynomial)
{}
lsampl_t operator()(double physical_value) const
{
return comedi_from_physical(physical_value, &_polynomial);
}
private:
comedi_polynomial_t _polynomial
};
class device {
public:
device() {}
@ -175,6 +205,7 @@ namespace comedi
class calibration
{
public:
calibration() {}
calibration(const device &dev)
{
init(dev.default_calibration_path());
@ -222,6 +253,7 @@ namespace comedi
}
void apply_hard_calibration(unsigned channel, unsigned range, unsigned aref, const calibration &cal)
{
if(cal.c_calibration() == 0) throw std::invalid_argument(__PRETTY_FUNCTION__);
int retval = comedi_apply_parsed_calibration(comedi_handle(), index(),
channel, range, aref, cal.c_calibration());
if(retval < 0)
@ -456,6 +488,7 @@ namespace comedi
comedi_polynomial_t softcal_converter(unsigned channel, unsigned range,
enum comedi_conversion_direction direction, const calibration &cal)
{
if(cal.c_calibration() == 0) throw std::invalid_argument(__PRETTY_FUNCTION__);
comedi_polynomial_t result;
int retval = comedi_get_softcal_converter(index(),
channel, range, direction, cal.c_calibration(), &result);