def test_irapasc_export_and_import():
"""Export Irap ASCII and binary and import again."""
logger.info("Export to Irap Classic and Binary")
x = xtgeo.RegularSurface(
ncol=120,
nrow=100,
xori=1000,
yori=5000,
xinc=40,
yinc=20,
values=np.random.rand(120, 100),
)
assert_equal(x.ncol, 120)
mean1 = x.values.mean()
x.to_file("TMP/irap2_a.fgr", fformat="irap_ascii")
x.to_file("TMP/irap2_b.gri", fformat="irap_binary")
fsize = os.path.getsize("TMP/irap2_b.gri")
logger.info(fsize)
assert_equal(fsize, 48900)
# import irap ascii
y = xtgeo.RegularSurface()
y.from_file("TMP/irap2_a.fgr", fformat="irap_ascii")
mean2 = y.values.mean()
assert_almostequal(mean1, mean2, 0.0001)
def test_get_randomline_frompolygon(xtgshow):
"""Test randomline with both bilinear and nearest sampling for surfaces."""
fence = xtgeo.Polygons(FENCE1)
xs = xtgeo.RegularSurface(TESTSET1)
# get the polygon
fspec = fence.get_fence(distance=10, nextend=2, asnumpy=False)
assert_almostequal(fspec.dataframe[fspec.dhname][4], 10, 1)
fspec = fence.get_fence(distance=20, nextend=5, asnumpy=True)
arr1 = xs.get_randomline(fspec)
arr2 = xs.get_randomline(fspec, sampling="nearest")
x = arr1[:, 0]
y1 = arr1[:, 1]
y2 = arr2[:, 1]
assert y1.mean() == pytest.approx(1706.7514, abs=0.001)
assert y2.mean() == pytest.approx(1706.6995, abs=0.001)
if xtgshow:
import matplotlib.pyplot as plt
plt.figure()
plt.plot(x, y1)
plt.plot(x, y2)
plt.gca().invert_yaxis()
plt.show()
def test_fence():
"""Test sampling a fence from a surface."""
myfence = np.array(
[
[462174.6191406, 5930073.3461914, 721.711059],
[462429.4677734, 5930418.2055664, 720.909423],
[462654.6738281, 5930883.9331054, 712.587158],
[462790.8710937, 5931501.4443359, 676.873901],
[462791.5273437, 5932040.4306640, 659.938476],
[462480.2958984, 5932846.7387695, 622.102172],
[462226.7070312, 5933397.8632812, 628.067138],
[462214.4921875, 5933753.4936523, 593.260864],
[462161.5048828, 5934327.8398437, 611.253540],
[462325.0673828, 5934688.7519531, 626.485107],
[462399.0429687, 5934975.2934570, 640.868774],
]
)
logger.debug("NP:")
logger.debug(myfence)
print(myfence)
x = xtgeo.RegularSurface(TESTSET1)
newfence = x.get_fence(myfence)
logger.debug("updated NP:")
logger.debug(newfence)
print(newfence)
assert_almostequal(newfence[1][2], 1720.9094, 0.01)
def test_irapasc_import1_engine_python():
"""Import Reek Irap ascii using python read engine"""
logger.info("Import and export...")
xsurf = xtgeo.RegularSurface(TESTSET3, fformat="irap_ascii", engine="python")
assert xsurf.ncol == 1264
assert xsurf.nrow == 2010
assert_almostequal(xsurf.values[11, 0], 1678.89733887, 0.001)
assert_almostequal(xsurf.values[1263, 2009], 1893.75, 0.01)
def test_irapbin_import1():
"""Import Reek Irap binary."""
logger.info("Import and export...")
xsurf = xtgeo.RegularSurface(TESTSET2)
assert xsurf.ncol == 1264
assert xsurf.nrow == 2010
assert_almostequal(xsurf.values[11, 0], 1678.89733887, 0.00001)
assert_almostequal(xsurf.values[1263, 2009], 1893.75, 0.01)
xsurf.describe()
def test_statistics():
"""Find the mean etc measures of the surfaces."""
flist = [TESTSET1A, TESTSET1B]
surfs = xtgeo.Surfaces(flist)
res = surfs.statistics()
res["mean"].to_file(join(TMPD, "surf_mean.gri"))
res["std"].to_file(join(TMPD, "surf_std.gri"))
assert_almostequal(res["mean"].values.mean(), 1720.5029, 0.0001)
assert_almostequal(res["std"].values.min(), 3.7039, 0.0001)
def test_ijxyz_import4_ow_messy_dat():
"""Import some IJ XYZ small set with YFLIP -1 from OW messy dat format."""
logger.info("Import and export...")
xsurf = xtgeo.RegularSurface()
xsurf.from_file(TESTSET4D, fformat="ijxyz")
xsurf.describe()
assert_almostequal(xsurf.values.mean(), 5037.5840, 0.001)
assert xsurf.ncol == 51
assert xsurf.yflip == -1
assert xsurf.nactive == 2578
xsurf.to_file(os.path.join(TMPD, "ijxyz_set4d.gri"))
def test_ijxyz_import1():
"""Import some IJ XYZ format, typical seismic."""
logger.info("Import and export...")
xsurf = xtgeo.RegularSurface()
xsurf.from_file(TESTSET4A, fformat="ijxyz")
xsurf.describe()
assert_almostequal(xsurf.xori, 600413.048444, 0.0001)
assert_almostequal(xsurf.xinc, 25.0, 0.0001)
assert xsurf.ncol == 280
assert xsurf.nrow == 1341
xsurf.to_file(os.path.join(TMPD, "ijxyz_set4a.gri"))
def test_ijxyz_import2(tmpdir):
"""Import some IJ XYZ small set with YFLIP -1."""
logger.info("Import and export...")
xsurf = xtgeo.RegularSurface()
xsurf.from_file(TESTSET4B, fformat="ijxyz")
xsurf.describe()
assert_almostequal(xsurf.values.mean(), 5037.5840, 0.001)
assert xsurf.ncol == 51
assert xsurf.yflip == -1
assert xsurf.nactive == 2578
xsurf.to_file(join(tmpdir, "ijxyz_set4b.gri"))
def test_value_from_xy():
"""
get Z value from XY point
"""
x = xtgeo.RegularSurface()
x.from_file(TESTSET1, fformat="irap_binary")
z = x.get_value_from_xy(point=(460181.036, 5933948.386))
assert_almostequal(z, 1625.11, 0.01)
# outside value shall return None
z = x.get_value_from_xy(point=(0.0, 7337128.076))
assert z is None
def test_smoothing():
"""Smooth the the surface"""
srf = xtgeo.RegularSurface()
srf.from_file(TESTSET1, fformat="irap_binary")
mean1 = srf.values.mean()
assert_almostequal(mean1, 1698.65, 0.1)
srf.smooth(iterations=1, width=5)
mean2 = srf.values.mean()
assert_almostequal(mean2, 1698.65, 0.3) # smoothed ~same mean
assert mean1 != mean2 # but not exacly same
def test_swapaxes():
"""Import Reek Irap binary and swap axes."""
xsurf = xtgeo.RegularSurface(TESTSET5)
xsurf.describe()
logger.info(xsurf.yflip)
xsurf.to_file("TMP/notswapped.gri")
val1 = xsurf.values.copy()
xsurf.swapaxes()
xsurf.describe()
logger.info(xsurf.yflip)
xsurf.to_file("TMP/swapped.gri")
xsurf.swapaxes()
val2 = xsurf.values.copy()
xsurf.to_file("TMP/swapped_reswapped.gri")
valdiff = val2 - val1
assert_almostequal(valdiff.mean(), 0.0, 0.00001)
assert_almostequal(valdiff.std(), 0.0, 0.00001)
def test_minmax_rotated_map():
"""Min and max of rotated map"""
logger.info("Import and export...")
x = xtgeo.RegularSurface()
x.from_file(TESTSET1, fformat="irap_binary")
assert_almostequal(x.xmin, 454637.6, 0.1)
assert_almostequal(x.xmax, 468895.1, 0.1)
assert_almostequal(x.ymin, 5925995.0, 0.1)
assert_almostequal(x.ymax, 5939998.7, 0.1)
def test_surfaces_apply():
"""Test apply function."""
base = xtgeo.RegularSurface(TESTSET1A)
base.describe()
base.values *= 0.0
bmean = base.values.mean()
surfs = [base]
for inum in range(1, 101):
tmp = base.copy()
tmp.values += float(inum)
surfs.append(tmp)
so = xtgeo.Surfaces(surfs)
res = so.apply(np.nanmean)
assert_almostequal(res.values.mean(), bmean + 50.0, 0.0001)
res = so.apply(np.nanpercentile, 10, axis=0, interpolation="nearest")
assert_almostequal(res.values.mean(), bmean + 10.0, 0.0001)
def test_get_surfaces_from_3dgrid():
"""Create surfaces from a 3D grid."""
mygrid = xtgeo.Grid(TESTSETG1)
surfs = xtgeo.Surfaces()
surfs.from_grid3d(mygrid, rfactor=2)
surfs.describe()
assert_almostequal(surfs.surfaces[-1].values.mean(), 1742.28, 0.04)
assert_almostequal(surfs.surfaces[-1].values.min(), 1589.58, 0.04)
assert_almostequal(surfs.surfaces[-1].values.max(), 1977.29, 0.04)
assert_almostequal(surfs.surfaces[0].values.mean(), 1697.02, 0.04)
for srf in surfs.surfaces:
srf.to_file(join(TMPD, srf.name + ".gri"))
def test_irapbin_io():
"""Import and export Irap binary."""
logger.info("Import and export...")
x = xtgeo.RegularSurface()
x.from_file(TESTSET1, fformat="irap_binary")
x.to_file("TMP/reek1_test.fgr", fformat="irap_ascii")
logger.debug("NX is %s", x.ncol)
assert_equal(x.ncol, 554)
# get the 1D numpy
v1d = x.get_zval()
logger.info("Mean VALUES are: %s", np.nanmean(v1d))
zval = x.values
# add value via numpy
zval = zval + 300
# update
x.values = zval
assert_almostequal(x.values.mean(), 1998.648, 0.01)
x.to_file("TMP/reek1_plus_300_a.fgr", fformat="irap_ascii")
x.to_file("TMP/reek1_plus_300_b.gri", fformat="irap_binary")
mfile = TESTSET1
# direct import
y = xtgeo.RegularSurface(mfile)
assert_equal(y.ncol, 554)
# semidirect import
cc = xtgeo.RegularSurface().from_file(mfile)
assert_equal(cc.ncol, 554)
def test_irapbin_import_metadatafirst():
"""Import Reek Irap binary, first with metadata only, then values."""
logger.info("Import and export...")
nsurf = 10
sur = []
t1 = xtg.timer()
for ix in range(nsurf):
sur.append(xtgeo.RegularSurface(TESTSET2, values=False))
t2 = xtg.timer(t1)
logger.info("Loading %s surfaces lazy took %s secs.", nsurf, t2)
assert sur[nsurf - 1].ncol == 1264
t1 = xtg.timer()
for ix in range(nsurf):
sur[ix].load_values()
t2 = xtg.timer(t1)
logger.info("Loading %s surfaces actual values took %s secs.", nsurf, t2)
assert sur[nsurf - 1].ncol == 1264
assert sur[nsurf - 1].nrow == 2010
assert_almostequal(sur[nsurf - 1].values[11, 0], 1678.89733887, 0.00001)
def test_dataframe_more():
"""Get a pandas Dataframe object, more detailed testing"""
xmap = xtgeo.RegularSurface(TESTSET1)
xmap.describe()
dfrc = xmap.dataframe(ijcolumns=True, order="C", activeonly=True)
dfrf = xmap.dataframe(ijcolumns=True, order="F", activeonly=True)
dfrc.to_csv(os.path.join(TMPD, "regsurf_df_c.csv"))
dfrf.to_csv(os.path.join(TMPD, "regsurf_df_f.csv"))
xmap.to_file(os.path.join(TMPD, "regsurf_df.ijxyz"), fformat="ijxyz")
assert_almostequal(dfrc["X_UTME"][2], 465956.274, 0.01)
assert_almostequal(dfrf["X_UTME"][2], 462679.773, 0.01)
dfrcx = xmap.dataframe(ijcolumns=False, order="C", activeonly=True)
dfrcx.to_csv(os.path.join(TMPD, "regsurf_df_noij_c.csv"))
dfrcy = xmap.dataframe(
ijcolumns=False, order="C", activeonly=False, fill_value=None
)
dfrcy.to_csv(os.path.join(TMPD, "regsurf_df_noij_c_all.csv"))
def test_more_statistics():
"""Find the mean etc measures of the surfaces."""
base = xtgeo.RegularSurface(TESTSET1A)
base.values *= 0.0
bmean = base.values.mean()
surfs = []
surfs.append(base)
# this will get 101 constant maps ranging from 0 til 100
for inum in range(1, 101):
tmp = base.copy()
tmp.values += float(inum)
surfs.append(tmp)
so = xtgeo.Surfaces(surfs)
res = so.statistics()
# theoretical stdev:
sum2 = 0.0
for inum in range(0, 101):
sum2 += (float(inum) - 50.0) ** 2
stdev = math.sqrt(sum2 / 100.0) # total 101 samples, use N-1
assert_almostequal(res["mean"].values.mean(), bmean + 50.0, 0.0001)
assert_almostequal(res["std"].values.mean(), stdev, 0.0001)
small = xtgeo.RegularSurface()
so2 = xtgeo.Surfaces()
for inum in range(10):
tmp = small.copy()
tmp.values += 8.76543
so2.append([tmp])
res2 = so2.statistics(percentiles=[10, 50])
assert res2["p10"].values.mean() == pytest.approx(16.408287142, 0.001)
def test_fill():
"""Fill the undefined values for the surface"""
srf = xtgeo.RegularSurface()
srf.from_file(TESTSET1, fformat="irap_binary")
minv1 = srf.values.min()
assert_almostequal(srf.values.mean(), 1698.648, 0.001)
srf.fill()
minv2 = srf.values.min()
assert_almostequal(srf.values.mean(), 1705.201, 0.001)
assert_almostequal(minv1, minv2, 0.000001)
srf = xtgeo.RegularSurface()
srf.from_file(TESTSET1, fformat="irap_binary")
srf.fill(444)
assert_almostequal(srf.values.mean(), 1342.10498, 0.001)
def test_get_xy_values1d():
"""Get the XY coordinate values"""
xmap = xtgeo.RegularSurface()
xcv, _ycv = xmap.get_xy_values1d(activeonly=False, order="C")
assert_almostequal(xcv[1], 0.0, 0.001)
xcv, _ycv = xmap.get_xy_values1d(activeonly=False, order="F")
assert_almostequal(xcv[1], 25.0, 0.001)
xcv, _ycv = xmap.get_xy_values1d(activeonly=True, order="C")
assert_almostequal(xcv[1], 0.0, 0.001)
xcv, _ycv = xmap.get_xy_values1d(activeonly=True, order="F")
assert_almostequal(xcv[1], 25.0, 0.001)
def test_get_xy_values():
"""Get the XY coordinate values as 2D arrays"""
xmap = xtgeo.RegularSurface()
xcv, _ycv = xmap.get_xy_values(order="C")
xxv = xcv.ravel(order="K")
assert_almostequal(xxv[1], 0.0, 0.001)
xcv, _ycv = xmap.get_xy_values(order="F")
xxv = xcv.ravel(order="K")
assert_almostequal(xxv[1], 25.0, 0.001)
xcv, _ycv = xmap.get_xy_values(order="C", asmasked=True)
xxv = xcv.ravel(order="K")
assert_almostequal(xxv[1], 0.0, 0.001)
xcv, _ycv = xmap.get_xy_values(order="F", asmasked=True)
xxv = xcv.ravel(order="K")
assert_almostequal(xxv[1], 25.0, 0.001)
def test_dataframe_simple():
"""Get a pandas Dataframe object"""
xmap = xtgeo.RegularSurface(TESTSET1)
dfrc = xmap.dataframe(ijcolumns=True, order="C", activeonly=True)
assert_almostequal(dfrc["X_UTME"][2], 465956.274, 0.01)
xmap = xtgeo.surface_from_file(TESTSET2)
dfrc = xmap.dataframe()
assert_almostequal(dfrc["X_UTME"][2], 461582.562498, 0.01)
xmap.coarsen(2)
dfrc = xmap.dataframe()
assert_almostequal(dfrc["X_UTME"][2], 461577.5575, 0.01)
def test_twosurfaces_oper():
"""Test operations between two surface in more different ways"""
surf1 = xtgeo.RegularSurface(TESTSET1)
surf2 = xtgeo.RegularSurface(TESTSET1A)
iso1 = surf2.copy()
iso1.values -= surf1.values
iso1mean = iso1.values.mean()
assert_almostequal(iso1mean, 43.71, 0.01)
iso2 = surf2.copy()
iso2.subtract(surf1)
iso2mean = iso2.values.mean()
assert_almostequal(iso2mean, 43.71, 0.01)
assert iso1.values.all() == iso2.values.all()
iso3 = surf2 - surf1
assert iso1.values.all() == iso3.values.all()
assert isinstance(iso3, xtgeo.RegularSurface)
sum1 = surf2.copy()
sum1.values += surf1.values
assert_almostequal(sum1.values.mean(), 3441.0, 0.01)
sum2 = surf2.copy()
sum2.add(surf1)
assert sum1.values.all() == sum2.values.all()
sum3 = surf1 + surf2
assert sum1.values.all() == sum3.values.all()
zrf2 = surf2.copy()
zrf1 = surf1.copy()
newzrf1 = surf1.copy()
newzrf1.values = zrf2.values / zrf1.values
assert newzrf1.values.mean() == pytest.approx(1.0257, abs=0.01)
