Exemplo n.º 1
0
def test_save_instrument_file():
    """Tests instrument object saving
    """
    instr = Instrument()
    try:
        save_instrument(instr, 'test.out', filetype='ascii', overwrite=True)
        save_instrument(instr, 'test.out', filetype='hdf5', overwrite=True)
        save_instrument(instr, 'test.out', filetype='taz', overwrite=True)
    except Exception:
        pytest.fail('Instrument saving failed')

    with pytest.raises(ValueError):
        save_instrument(instr, 'test.out', filetype='hdf5', overwrite=False)
Exemplo n.º 2
0
import numpy as np
import matplotlib.pyplot as plt
from matplotlib import cm
from neutronpy import Instrument, Sample
from neutronpy.functions import resolution

EXP = Instrument()
EXP.arms = [1560, 600, 260, 300]
EXP.method = 1

hkle = [1., 1., 0., 5.]
EXP.sample.u = [1,0,0]
EXP.sample.v = [0,1,0]
EXP.calc_projections(hkle)

x, y = np.meshgrid(np.linspace(-0.05, 0.05, 101), np.linspace(-0.05, 0.05, 101), sparse=True)

R0, RMxx, RMyy, RMxy = EXP.get_resolution_params(hkle, 'QxQy', mode='project')
p = np.array([0., 0., 1., 0, 0, R0, RMxx, RMyy, RMxy])
z = resolution(p, (x, y))

fig = plt.figure(facecolor='w', edgecolor='k')

plt.pcolormesh(x, y, z, cmap=cm.jet)

[x1, y1] = EXP.projections['QxQy'][0]
plt.fill(x1, y1, 'r', alpha=0.25)
[x1, y1] = EXP.projections['QxQySlice'][0]
plt.plot(x1, y1, 'w--')

plt.xlim(-0.05, 0.05)
Exemplo n.º 3
0
def test_currat_axe():
    with warnings.catch_warnings(record=True) as w:
        spurion.currat_axe_peaks(Instrument(), [[0.8, 0.8, 0], [1.2, 1.2, 0], 17], [[1, 1, 0]], angle_tol=1)
        assert (len(w) == 3)
Exemplo n.º 4
0
import numpy as np
import matplotlib.pyplot as plt
from matplotlib import cm
from neutronpy import Instrument, Sample
from neutronpy.functions import resolution

EXP = Instrument()

hkle = [1., 1., 0., 5.]
EXP.calc_projections(hkle)

x, y = np.meshgrid(np.linspace(-0.05, 0.05, 101), np.linspace(-0.05, 0.05, 101), sparse=True)

R0, RMxx, RMyy, RMxy = EXP.get_resolution_params(hkle, 'QxQy', mode='project')
p = np.array([0., 0., 1., 0, 0, R0, RMxx, RMyy, RMxy])
z = resolution(p, (x, y))

fig = plt.figure(facecolor='w', edgecolor='k')

plt.pcolormesh(x, y, z, cmap=cm.jet)

[x1, y1] = EXP.projections['QxQy'][0]
plt.fill(x1, y1, 'r', alpha=0.25)
[x1, y1] = EXP.projections['QxQySlice'][0]
plt.plot(x1, y1, 'w--')

plt.xlim(-0.05, 0.05)
plt.ylim(-0.05, 0.05)

plt.show()
Exemplo n.º 5
0
from neutronpy import Instrument

EXP = Instrument()
EXP.plot_ellipsoid([1, 1, 0, 0])
Exemplo n.º 6
0
from neutronpy import Instrument
from numpy import linspace

EXP = Instrument()
EXP.plot_projections([1., 1., 0., linspace(0, 15, 7)])
Exemplo n.º 7
0
from neutronpy import Instrument

EXP = Instrument()
EXP.arms = [1560, 600, 260, 300]
EXP.plot_instrument([1,1,0,0])