Synthesizer load filter test

filter_test.py

import numpy as np
import matplotlib.pyplot as plt

from synthesizer.filters import Filter, FilterCollection


filter_codes = ["JWST/NIRCam.F444W", "JWST/NIRCam.F480M"]
filtcoll = FilterCollection(filter_codes=filter_codes)

fig, ax = filtcoll.plot_transmission_curves(show=False, linestyle='solid')

new_lams = np.linspace(2000, 55000, 1000)

dat = np.loadtxt('F444W.txt')
lam, trans = dat[:,0], dat[:,1]
filt_444 = Filter("F444W_so", transmission=trans, new_lam=lam)

dat = np.loadtxt('F480M.txt')
lam, trans = dat[:,0], dat[:,1]
filt_480 = Filter("F480M_so", transmission=trans, new_lam=lam)

combined_filters = FilterCollection(
    filters=[filt_444, filt_480]
)

combined_filters.plot_transmission_curves(
    show=False, fig=fig, ax=ax, linestyle='dashed'
)

ax.legend()

plt.savefig('filter_response.png')