def _rkwquery(gfile, kws, name, swap):
"""Local function for _import_roff_v2, single data."""
kwtypedict = {"int": 1, "float": 2}
iresult = _cxtgeo.new_intpointer()
presult = _cxtgeo.new_floatpointer()
dtype = 0
reclen = 0
bytepos = 1
for items in kws:
if name in items[0]:
dtype = kwtypedict.get(items[1])
reclen = items[2]
bytepos = items[3]
break
logger.debug("DTYPE is %s", dtype)
if dtype == 0:
raise ValueError("Cannot find property <{}> in file".format(name))
if reclen != 1:
raise SystemError("Stuff is rotten here...")
_cxtgeo.grd3d_imp_roffbin_data(
gfile.get_cfhandle(), swap, dtype, bytepos, iresult, presult
)
gfile.cfclose()
# -1 indicates that it is the swap flag which is looked for!
if dtype == 1:
xresult = _cxtgeo.intpointer_value(iresult)
if swap == -1:
if xresult == 1:
return 0
return 1
elif dtype == 2:
xresult = _cxtgeo.floatpointer_value(presult)
return xresult
def _import_segy_xtgeo(sfile,
scanheadermode=False,
scantracemode=False,
outfile=None):
"""Import SEGY via XTGeo's C library. OLD NOT UPDATED!!
Args:
sfile (str): File name of SEGY file
scanheadermode (bool, optional): If true, will scan header
scantracemode (bool, optional): If true, will scan trace headers
outfile (str, optional): Output file for scan dump (default None)
Returns:
A dictionary with relevant data.
"""
# pylint: disable=too-many-statements, too-many-locals
sdata = dict()
logger.info("Import SEGY via XTGeo CLIB")
if outfile is None:
outfile = "/dev/null"
ptr_gn_bitsheader = _cxtgeo.new_intpointer()
ptr_gn_formatcode = _cxtgeo.new_intpointer()
ptr_gf_segyformat = _cxtgeo.new_floatpointer()
ptr_gn_samplespertrace = _cxtgeo.new_intpointer()
ptr_gn_measuresystem = _cxtgeo.new_intpointer()
option = 0
if scantracemode:
option = 0
if scanheadermode:
option = 1
_cxtgeo.cube_scan_segy_hdr(
sfile,
ptr_gn_bitsheader,
ptr_gn_formatcode,
ptr_gf_segyformat,
ptr_gn_samplespertrace,
ptr_gn_measuresystem,
option,
outfile,
)
# get values
gn_bitsheader = _cxtgeo.intpointer_value(ptr_gn_bitsheader)
gn_formatcode = _cxtgeo.intpointer_value(ptr_gn_formatcode)
gf_segyformat = _cxtgeo.floatpointer_value(ptr_gf_segyformat)
gn_samplespertrace = _cxtgeo.intpointer_value(ptr_gn_samplespertrace)
if scanheadermode:
logger.info("Scan SEGY header ... %s bytes ... DONE", gn_bitsheader)
return None
# next is to scan first and last trace, in order to allocate
# cube size
ptr_ncol = _cxtgeo.new_intpointer()
ptr_nrow = _cxtgeo.new_intpointer()
ptr_nlay = _cxtgeo.new_intpointer()
ptr_xori = _cxtgeo.new_doublepointer()
ptr_yori = _cxtgeo.new_doublepointer()
ptr_zori = _cxtgeo.new_doublepointer()
ptr_xinc = _cxtgeo.new_doublepointer()
ptr_yinc = _cxtgeo.new_doublepointer()
ptr_zinc = _cxtgeo.new_doublepointer()
ptr_rotation = _cxtgeo.new_doublepointer()
ptr_minval = _cxtgeo.new_doublepointer()
ptr_maxval = _cxtgeo.new_doublepointer()
ptr_dummy = _cxtgeo.new_floatpointer()
ptr_yflip = _cxtgeo.new_intpointer()
ptr_zflip = _cxtgeo.new_intpointer()
optscan = 1
if scantracemode:
option = 1
logger.debug("Scan via C wrapper...")
_cxtgeo.cube_import_segy(
sfile,
# input
gn_bitsheader,
gn_formatcode,
gf_segyformat,
gn_samplespertrace,
# result (as pointers)
ptr_ncol,
ptr_nrow,
ptr_nlay,
ptr_dummy,
ptr_xori,
ptr_xinc,
ptr_yori,
ptr_yinc,
ptr_zori,
ptr_zinc,
ptr_rotation,
ptr_yflip,
ptr_zflip,
ptr_minval,
ptr_maxval,
# options
optscan,
option,
outfile,
)
logger.debug("Scan via C wrapper... done")
ncol = _cxtgeo.intpointer_value(ptr_ncol)
nrow = _cxtgeo.intpointer_value(ptr_nrow)
nlay = _cxtgeo.intpointer_value(ptr_nlay)
if scantracemode:
return None
nrcl = ncol * nrow * nlay
ptr_cval_v = _cxtgeo.new_floatarray(nrcl)
# next is to do the actual import of the cube
optscan = 0
logger.debug("Import via C wrapper...")
_cxtgeo.cube_import_segy(
sfile,
# input
gn_bitsheader,
gn_formatcode,
gf_segyformat,
gn_samplespertrace,
# result (as pointers)
ptr_ncol,
ptr_nrow,
ptr_nlay,
ptr_cval_v,
ptr_xori,
ptr_xinc,
ptr_yori,
ptr_yinc,
ptr_zori,
ptr_zinc,
ptr_rotation,
ptr_yflip,
ptr_zflip,
ptr_minval,
ptr_maxval,
# options
optscan,
option,
outfile,
)
logger.debug("Import via C wrapper...")
sdata["ncol"] = ncol
sdata["nrow"] = nrow
sdata["nlay"] = nlay
sdata["xori"] = _cxtgeo.doublepointer_value(ptr_xori)
sdata["yori"] = _cxtgeo.doublepointer_value(ptr_yori)
sdata["zori"] = _cxtgeo.doublepointer_value(ptr_zori)
sdata["xinc"] = _cxtgeo.doublepointer_value(ptr_xinc)
sdata["yinc"] = _cxtgeo.doublepointer_value(ptr_yinc)
sdata["zinc"] = _cxtgeo.doublepointer_value(ptr_zinc)
sdata["yflip"] = _cxtgeo.intpointer_value(ptr_yflip)
sdata["zflip"] = _cxtgeo.intpointer_value(ptr_zflip)
sdata["rotation"] = _cxtgeo.doublepointer_value(ptr_rotation)
sdata["minval"] = _cxtgeo.doublepointer_value(ptr_minval)
sdata["maxval"] = _cxtgeo.doublepointer_value(ptr_maxval)
sdata["zmin"] = sdata["zori"]
sdata["zmax"] = sdata["zori"] + sdata["zflip"] * sdata["zinc"] * (nlay - 1)
# the pointer to 1D C array
sdata["cvalues"] = ptr_cval_v
sdata["values"] = None
return sdata