def test_sample_indexes(self):
with segyio.open(self.filename, "r") as f:
indexes = segyio.sample_indexes(f)
step = 4000.0
self.assertListEqual(indexes, [t * step for t in range(len(f.samples))])
indexes = segyio.sample_indexes(f, t0=1.5)
self.assertListEqual(indexes, [1.5 + t * step for t in range(len(f.samples))])
indexes = segyio.sample_indexes(f, t0=1.5, dt_override=3.21)
self.assertListEqual(indexes, [1.5 + t * 3.21 for t in range(len(f.samples))])
def test_sample_indexes():
with segyio.open("test-data/small.sgy") as f:
indexes = segyio.sample_indexes(f)
step = 4000.0
assert indexes == [t * step for t in range(len(f.samples))]
indexes = segyio.sample_indexes(f, t0=1.5)
assert indexes == [1.5 + t * step for t in range(len(f.samples))]
indexes = segyio.sample_indexes(f, t0=1.5, dt_override=3.21)
assert indexes == [1.5 + t * 3.21 for t in range(len(f.samples))]
def _copy_data(segy, variables, dim_names, dim_lens, verbose):
"""Copy the data to the NetCDF file.
Trace data, Time/Depth dimension indices, and trace header values are
copied.
"""
traceIDs = np.reshape(np.arange(segy.tracecount), dim_lens[:-1])
n_trace_dims = len(dim_names[:-1])
for v in variables:
if v.name == "Samples":
if verbose:
click.echo("copying trace data")
v[:] = segy.trace.raw[:].reshape(v.shape)
elif v.name == dim_names[-1]:
if verbose:
click.echo("copying time/depth indices")
v[:] = np.array(segyio.sample_indexes(segy)).reshape(v.shape)
elif v.name in dim_names[:-1]:
if verbose:
click.echo("copying {}".format(v.name))
v_traceIDs = _get_variable_traceIDs(v, n_trace_dims, dim_names,
traceIDs)
header_field = _get_header_field(v.name)
v[:] = segy.attributes(header_field)[v_traceIDs.flatten()
[:]].reshape(v.shape)
else:
if verbose:
click.echo("copying {}".format(v.name))
header_field = _get_header_field(v.name)
v[:] = segy.attributes(header_field)[:].reshape(v.shape)