def plot_qs(self):
length = 0.2 * M
aper = 30 * MM
g = 10.0
L = 0
lc = LocalCoordinateSystem()
qs = QS(lc, length, g, L, aper)
Plot3.plot_qs(qs)
def test_quad_1(self):
"""
测试 qs 四极场
Returns
-------
"""
length = 0.2 * M
aper = 30 * MM
g = -45.7
L = 0
lc = LocalCoordinateSystem(P3(), -P3.x_direct(), P3.y_direct())
qs = QS(lc, length, g, L, aper)
m = qs.magnetic_field_at(P3(10 * MM, 0.1, 0))
self.assertTrue(m == P3(0.0, 0.0, 0.457))
m = qs.magnetic_field_at(P3(15 * MM, 0.1, 0))
self.assertTrue(m == P3(0.0, 0.0, 0.6855))
m = qs.magnetic_field_at(P3(15 * MM, 0.1, 5 * MM))
self.assertTrue(m == P3(0.2285, 1.399158968025851e-17, 0.6855))
def test_quad_0(self):
"""
测试 qs 四极场
Returns
-------
"""
length = 0.2 * M
aper = 30 * MM
g = 10.0
L = 0
lc = LocalCoordinateSystem(P3(), -P3.x_direct(), P3.y_direct())
qs = QS(lc, length, g, L, aper)
m = qs.magnetic_field_at(P3(10 * MM, 0.1, 0.0))
self.assertTrue(m == P3(0.0, 0.0, -0.1))
m = qs.magnetic_field_at(P3(15 * MM, 0.1, 0.0))
self.assertTrue(m == P3(0.0, 0.0, -0.15))
m = qs.magnetic_field_at(P3(15 * MM, 0.1, 5 * MM))
self.assertTrue(m == P3(-0.05, -3.061616997868383e-18, -0.15))
from cctpy import M, MM, LocalCoordinateSystem, QS, Plot3, P3 length = 0.2 * M aper = 30 * MM g = 10.0 L = 0 lc = LocalCoordinateSystem(P3(), -P3.x_direct(), P3.y_direct()) qs = QS(lc, length, g, L, aper) Plot3.plot_qs(qs) Plot3.show() m = qs.magnetic_field_at_cpu(P3(10 * MM, 0.1, 0.0)) print(m)