ó ŭ™xTc@ s‡ddlmZddlZddlmZdefd„ƒYZedkrƒddlZx&ejdD]Z ej e ƒGHqhWndS(i˙˙˙˙(tdivisionN(tFormatTIFFRayonixtFormatTIFFRayonixESRFcB s8eZdZed„ƒZd„Zd„Zd„ZRS(srA class for reading TIFF format Rayonix images, and correctly constructing a model for the experiment from this.cC s=tj|ƒ\}}}}}ddl}ddlm}ddlm}m} id|6d| 6|} d} ||j| d|| d | d !ƒƒ} d | } d ||j| d|| d | d!ƒƒ}d||j| d|| d| d!ƒƒ}|d| d}|ddko<|ddko<|d kS(sœCheck to see if this looks like an Rayonix TIFF format image, i.e. we can make sense of it. Returns true if the beam center is specified in pixels.i˙˙˙˙N(tcol(t LITTLE_ENDIANt BIG_ENDIANtitiiiPiXgà?gíµ ÷Ĉ°>ii güİñÒMbP?i„iŒii( Rtget_tiff_headertstructt scitbx.matrixRtdxtbx.format.FormatTIFFHelpersRRtunpack(t image_filetwidththeighttdepthtordertbytesR RRRtformattoffsettdetector_size_pixelstdetector_center_pxtdetector_pixel_sz_mmtheader_beam_centert disagreement((sP/public2/ftp/pub/ccp4/6.5/ccp4-6.5/lib/py2/dxtbx/format/FormatTIFFRayonixESRF.pyt understands  + )) cC s)|j|ƒst‚tj||ƒdS(scInitialise the image structure from the given file, including a proper model of the experiment.N(RtAssertionErrorRt__init__(tselfR((sP/public2/ftp/pub/ccp4/6.5/ccp4-6.5/lib/py2/dxtbx/format/FormatTIFFRayonixESRF.pyR3scC s%|jƒ\}}}}|jjƒS(s°Return a model for goniometer corresponding to the values stored in the image header. In the first instance assume this is a single axis annd raise exception otherwise.(t_get_rayonix_scan_anglest_goniometer_factoryt single_axis(RtstartstendsRR((sP/public2/ftp/pub/ccp4/6.5/ccp4-6.5/lib/py2/dxtbx/format/FormatTIFFRayonixESRF.pyt _goniometer<scC sltj|j|jdd!ƒd \}}tj|j|jdd!ƒd \}}|d||d|fS(s Get the beam x, y positions which are defined in the standard to be in pixels. X and Y are not defined by the documentation, so taking as a given that these are horizontal and vertical. N.B. the documentation states that the horizontal direction is fast.i„iŒiii iè(R R t_iit_tiff_header_bytes(Rtbeam_xtbeam_ytpixel_xtpixel_y((sP/public2/ftp/pub/ccp4/6.5/ccp4-6.5/lib/py2/dxtbx/format/FormatTIFFRayonixESRF.pyt_get_rayonix_beam_xyPs ##(t__name__t __module__t__doc__t staticmethodRRR$R+(((sP/public2/ftp/pub/ccp4/6.5/ccp4-6.5/lib/py2/dxtbx/format/FormatTIFFRayonixESRF.pyRs  t__main__i( t __future__RR tdxtbx.format.FormatTIFFRayonixRRR,tsystargvtargR(((sP/public2/ftp/pub/ccp4/6.5/ccp4-6.5/lib/py2/dxtbx/format/FormatTIFFRayonixESRF.pyt s K