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import numpy as np
import matplotlib.pyplot as plt

%matplotlib inline


    

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from newdust.graindist import *
from newdust import *


    

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A0  = 10.0
MD  = 1.e22 * constants.m_p * 0.009  # g cm^-2

SIL      = composition.CmSilicate()
GRA_para = composition.CmGraphite(orient='para')
GRA_perp = composition.CmGraphite(orient='perp')


    

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EVALS = np.logspace(-1,np.log10(20.),100)
THVALS = np.logspace(0.0,2.0,5)


    

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plt.plot(EVALS, SIL.ip(EVALS, unit='kev'), 'g', label='Silicate')
plt.plot(EVALS, GRA_para.ip(EVALS, unit='kev'), 'b--', label='Graphite (parallel)')
plt.plot(EVALS, GRA_perp.ip(EVALS, unit='kev'), 'b:', label='Graphite (perpendicular)')
plt.loglog()
plt.xlabel("Energy (keV)", size=14)
plt.ylabel("Imaginary part", size=14)


    

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plt.plot(EVALS, 1.0 - SIL.rp(EVALS, unit='kev'), 'g', label='Silicate')
plt.plot(EVALS, 1.0 - GRA_para.rp(EVALS, unit='kev'), 'b--', label='Graphite (parallel)')
plt.plot(EVALS, 1.0 - GRA_perp.rp(EVALS, unit='kev'), 'b:', label='Graphite (perpendicular)')
plt.loglog()
plt.xlabel("Energy (keV)", size=14)
plt.ylabel("1 - Real part", size=14)


    

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ABIG  = 1.0
big_sil = SingleGrainPop('Grain', 'Silicate', 'Mie', amax=ABIG, md=MD)
big_gra = SingleGrainPop('Grain', 'Graphite', 'Mie', amax=ABIG, md=MD)


    

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%%time
big_sil.calculate_ext(EVALS, unit='kev', theta=THVALS)


    

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%%time
big_gra.calculate_ext(EVALS, unit='kev', theta=THVALS)


    

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ax = plt.subplot(111)
big_sil.plot_ext(ax, 'all')
plt.loglog()
ax.set_ylim(0.01, 2)
plt.title('Silicate')


    

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ax = plt.subplot(111)
big_gra.plot_ext(ax, 'all')
plt.loglog()
ax.set_ylim(0.01, 2)
plt.title('Graphite')


    

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inds = [0, 50, -10]
ms   = dict(zip(inds,['d','o','s']))
for i in inds:
    plt.plot(THVALS, big_sil.int_diff[i], 'g', ls='',
             marker=ms[i], markersize=10, label='%.2f keV' % EVALS[i])
    plt.plot(THVALS, big_gra.int_diff[i], 'b', ls='', marker=ms[i], markersize=10)
plt.loglog()
plt.legend(loc='lower left', frameon=False)


    

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giant_sil = SingleGrainPop('Grain', 'Silicate', 'Mie', amax=A0, md=MD)
giant_gra = SingleGrainPop('Grain', 'Graphite', 'Mie', amax=A0, md=MD)


    

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%%time
giant_sil.calculate_ext(EVALS, unit='kev', theta=THVALS)


    

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%%time
giant_gra.calculate_ext(EVALS, unit='kev', theta=THVALS)


    

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ax = plt.subplot(111)
giant_sil.plot_ext(ax, 'all')
plt.loglog()
ax.set_ylim(0.01, 2)
plt.title('Silicate')


    

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ax = plt.subplot(111)
giant_gra.plot_ext(ax, 'all')
plt.loglog()
ax.set_ylim(0.01, 2)
plt.title('Graphite')


    

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inds = [0, 50, -10]
ms   = dict(zip(inds,['d','o','s']))
for i in inds:
    plt.plot(THVALS, giant_sil.int_diff[i], 'g', ls='',
             marker=ms[i], markersize=10, label='%.2f keV' % EVALS[i])
    plt.plot(THVALS, giant_gra.int_diff[i], 'b', ls='', marker=ms[i], markersize=10)
plt.loglog()
plt.legend(loc='lower left', frameon=False)


    

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ax = plt.subplot(111)
big_gra.plot_ext(ax, 'abs', color='b', lw=1, label='1 um gra')
big_sil.plot_ext(ax, 'abs', color='g', lw=1, label='1 um sil')
giant_gra.plot_ext(ax, 'abs', color='b', lw=2, label='10 um gra')
giant_sil.plot_ext(ax, 'abs', color='g', lw=2, label='10 um sil')
plt.loglog()
plt.xlim(0.1, 20)
plt.ylim(0.001, 2)
plt.title("Absorption")
plt.legend(loc='lower left', frameon=False)