lsst::afw::fits::detail Namespace Reference

Classes
struct	Bitpix
	FITS BITPIX header value by C++ type. More...
struct	Bitpix< double >
struct	Bitpix< float >
struct	Bitpix< std::int16_t >
struct	Bitpix< std::int32_t >
struct	Bitpix< std::int64_t >
struct	Bitpix< std::uint16_t >
struct	Bitpix< std::uint32_t >
struct	Bitpix< std::uint64_t >
struct	Bitpix< std::uint8_t >
class	PixelArray
	Typed array of pixel values. More...
class	PixelArrayBase
	Abstract base class for an array of pixel values. More...

Functions
template<typename T>
std::shared_ptr< PixelArrayBase >	makePixelArray (int bitpix, ndarray::Array< T, 1, 1 > const &array)
	Create a PixelArray suitable for an image with the nominated BITPIX.
template<typename T, typename... Args>
dafPlistPtr	_readMetadata (T &&fitsparm, bool strip, Args... args)

Function Documentation

_readMetadata()

template<typename T, typename... Args>

dafPlistPtr lsst::afw::fits::detail::_readMetadata	(	T &&	fitsparm,
		bool	strip,
		Args...	args )

Definition at line 1688 of file fits.cc.

                                                                  {
    fits::Fits fp(fitsparm, "r", fits::Fits::AUTO_CLOSE | fits::Fits::AUTO_CHECK);
    fp.setHdu(args...);
    return readMetadata(fp, strip);
}

makePixelArray()

template<typename T>

std::shared_ptr< PixelArrayBase > lsst::afw::fits::detail::makePixelArray	(	int	bitpix,
		ndarray::Array< T, 1, 1 > const &	array )

Create a PixelArray suitable for an image with the nominated BITPIX.

Parameters

[in]	bitpix	Bits per pixel (0,8,16,32,64,-32,-64) for output.
[in]	array	Array with pixel values to convert.

Returns

A new PixelArray.

Definition at line 134 of file fitsCompression.h.

                                                                                             {
    switch (bitpix) {
        case 0:
            return std::make_shared<PixelArray<T>>(array);
        case 8:
            return std::make_shared<PixelArray<std::uint8_t>>(array);
        case 16:
            return std::make_shared<PixelArray<std::int16_t>>(array);
        case 32:
            return std::make_shared<PixelArray<std::int32_t>>(array);
        case 64:
            return std::make_shared<PixelArray<std::int64_t>>(array);
        case -32:
            return std::make_shared<PixelArray<boost::float32_t>>(array);
        case -64:
            return std::make_shared<PixelArray<boost::float64_t>>(array);
        default:
            std::ostringstream os;
            os << "Unrecognized bitpix: " << bitpix;
            throw LSST_EXCEPT(pex::exceptions::InvalidParameterError, os.str());
    }
}