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# -*- coding: utf-8 -*-
__author__ = "Konstantin Klementiev", "Roman Chernikov"
__date__ = "08 Mar 2016"
import os, sys; sys.path.append(os.path.join('..', '..', '..')) # analysis:ignore
import numpy as np
import matplotlib as mpl
import xrt.backends.raycing as raycing
import xrt.backends.raycing.sources as rs
#import xrt.backends.raycing.apertures as ra
import xrt.backends.raycing.oes as roe
import xrt.backends.raycing.run as rr
#import xrt.backends.raycing.materials as rm
import xrt.plotter as xrtp
import xrt.runner as xrtr
import xrt.backends.raycing.screens as rsc
mGold = None # rm.Material('Au', rho=19.3)
class Cylinder(roe.OE):
def __init__(self, *args, **kwargs):
self.Rm = kwargs.pop('Rm', 10000.) # R meridional
roe.OE.__init__(self, *args, **kwargs)
def local_z(self, x, y):
return self.Rm - np.sqrt(self.Rm**2 - y**2)
def local_n(self, x, y):
a = np.zeros_like(x) # -dz/dx
b = -y * (self.Rm**2 - y**2)**(-0.5) # -dz/dy
c = 1.
norm = (b**2 + 1)**0.5
b /= norm
c /= norm
return [a, b, c]
class CylinderP(Cylinder):
def local_r(self, s, phi):
return self.Rm
def local_n(self, s, phi):
a = np.zeros_like(phi) # -dz/dx
b = -np.sin(phi) # -dz/dy
c = np.cos(phi)
return [a, b, c]
def xyz_to_param(self, x, y, z): # for flat mirror as example
return x, np.arctan(y / (Rm - z)), np.sqrt(y**2 + (Rm - z)**2)
def param_to_xyz(self, s, phi, r): # for flat mirror as example
return s, r * np.sin(phi), Rm - r * np.cos(phi) # x, y, z
E0 = 2000.
L = 190.
Rm = 5000.
isFlat = False
isParametric = True
def build_beamline(nrays=raycing.nrays):
beamLine = raycing.BeamLine(height=0)
rs.GeometricSource(
beamLine, 'GeometricSource', (0, 0, 0),
nrays=nrays, dx=0., dz=0., dxprime=5e-4, dzprime=1e-5,
distE='lines', energies=(E0,), polarization='horizontal')
beamLine.fsm1 = rsc.Screen(beamLine, 'DiamondFSM1', (0, 100, 0))
if isFlat:
fName = 'Flat'
beamLine.cylinder = roe.OE(
beamLine, 'FlatP', [0, 1000, -0.01],
pitch=3e-3, material=mGold, isParametric=isParametric)
else:
fName = 'Cylinder'
limPhysX = [-5, 5]
limPhysY = [0, L]
if isParametric:
CylinderClass = CylinderP
else:
CylinderClass = Cylinder
beamLine.cylinder = CylinderClass(
beamLine, fName, [0, 1000, -0.05],
pitch=3e-3, material=mGold, limPhysX=limPhysX, limPhysY=limPhysY,
Rm=Rm, isParametric=isParametric)
beamLine.fsm2 = rsc.Screen(beamLine, 'DiamondFSM2', (0, 2000, 0))
return beamLine, fName
def run_process(beamLine, shineOnly1stSource=False):
beamSource = beamLine.sources[0].shine()
beamFSM1 = beamLine.fsm1.expose(beamSource)
beamCylinderGlobal, beamCylinderLocalN = \
beamLine.cylinder.multiple_reflect(beamSource, maxReflections=100)
# beamLine.cylinder.reflect(beamSource)
beamFSM2 = beamLine.fsm2.expose(beamCylinderGlobal)
outDict = {'beamSource': beamSource, 'beamFSM1': beamFSM1,
'beamCylinderGlobal': beamCylinderGlobal,
'beamCylinderLocalN': beamCylinderLocalN,
'beamFSM2': beamFSM2}
return outDict
rr.run_process = run_process
def define_plots(beamLine, fName):
# fwhmFormatStrE = '%.2f'
plots = []
pAdd = 'P' if isParametric else ''
plot = xrtp.XYCPlot(
'beamFSM1', (1,), xaxis=xrtp.XYCAxis(r'$x$', '$\mu$m'),
yaxis=xrtp.XYCAxis(r'$z$', '$\mu$m'), title='FSM1_E')
plot.caxis.fwhmFormatStr = None
# plot.caxis.limits = [70, 140]
plots.append(plot)
plot = xrtp.XYCPlotWithNumerOfReflections(
'beamCylinderLocalN', (1,),
xaxis=xrtp.XYCAxis(r'$x$', 'mm'),
yaxis=xrtp.XYCAxis(r'$y$', 'mm'), aspect='auto',
caxis=xrtp.XYCAxis('number of reflections', '', bins=32, ppb=8,
data=raycing.get_reflection_number), title='local')
plot.caxis.fwhmFormatStr = None
plot.xaxis.limits = [-2, 2]
plot.saveName = ['{0}Local{1}.png'.format(fName, pAdd), ]
plots.append(plot)
if isParametric:
plot = xrtp.XYCPlotWithNumerOfReflections(
'beamCylinderLocalN', (1,),
xaxis=xrtp.XYCAxis(r'$s$', 'mm'), aspect='auto',
yaxis=xrtp.XYCAxis(r'$\phi$', 'mrad'),
caxis=xrtp.XYCAxis('number of reflections', '', bins=32, ppb=8,
data=raycing.get_reflection_number),
title='local (s, phi)')
# plot.yaxis.fwhmFormatStr = '%.2f' + r'$ \pi$'
plot.caxis.fwhmFormatStr = None
formatter = mpl.ticker.FormatStrFormatter('%g' + r'$ \pi$')
plot.ax2dHist.xaxis.set_major_formatter(formatter)
plot.saveName = ['{0}LocalPP.png'.format(fName), ]
plots.append(plot)
plot = xrtp.XYCPlotWithNumerOfReflections(
'beamFSM2', (1, 2),
xaxis=xrtp.XYCAxis(r'$x$', 'mm'),
yaxis=xrtp.XYCAxis(r'$z$', 'mm'),
caxis=xrtp.XYCAxis('number of reflections', '', bins=32, ppb=8,
data=raycing.get_reflection_number),
title='FSM2_Es')
plot.xaxis.limits = [-4, 4]
plot.caxis.fwhmFormatStr = None
plot.fluxFormatStr = '%.2e'
plot.saveName = ['{0}Out{1}.png'.format(fName, pAdd), ]
plots.append(plot)
return plots
def main():
beamLine, fName = build_beamline()
plots = define_plots(beamLine, fName)
xrtr.run_ray_tracing(plots, repeats=40, updateEvery=1, beamLine=beamLine,
processes='half')
#this is necessary to use multiprocessing in Windows, otherwise the new Python
#contexts cannot be initialized:
if __name__ == '__main__':
main()
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