Exemplo n.º 1
0
def get_wavelength_solutions_deprecated(thar_echellogram_products, echel,
                             new_orders):
    """
    new_orders : output orders
    """
    from ecfit import get_ordered_line_data, fit_2dspec, check_fit

    from storage_descriptions import THAR_ALIGNED_JSON_DESC

    affine_tr = thar_echellogram_products[THAR_ALIGNED_JSON_DESC]["affine_tr"]

    d_x_wvl = {}
    for order, z in echel.zdata.items():
        xy_T = affine_tr.transform(np.array([z.x, z.y]).T)
        x_T = xy_T[:,0]
        d_x_wvl[order]=(x_T, z.wvl)

    xl, yl, zl = get_ordered_line_data(d_x_wvl)
    # xl : pixel
    # yl : order
    # zl : wvl * order

    x_domain = [0, 2047]
    orders_band = sorted(echel.zdata.keys())
    #orders = igrins_orders[band]
    #y_domain = [orders_band[0]-2, orders_band[-1]+2]
    y_domain = [new_orders[0], new_orders[-1]]
    p, m = fit_2dspec(xl, yl, zl, x_degree=4, y_degree=3,
                      x_domain=x_domain, y_domain=y_domain)

    if 0:
        import matplotlib.pyplot as plt
        fig = plt.figure(figsize=(12, 7))
        check_fit(fig, xl, yl, zl, p, orders_band, d_x_wvl)
        fig.tight_layout()


    xx = np.arange(2048)
    wvl_sol = []
    for o in new_orders:
        oo = np.empty_like(xx)
        oo.fill(o)
        wvl = p(xx, oo) / o
        wvl_sol.append(list(wvl))

    if 0:
        json.dump(wvl_sol,
                  open("wvl_sol_phase0_%s_%s.json" % \
                       (band, igrins_log.date), "w"))

    from storage_descriptions import THAR_WVLSOL_JSON_DESC

    r = PipelineProducts("wavelength solution from ThAr")
    r.add(THAR_WVLSOL_JSON_DESC,
          PipelineDict(orders=new_orders,
                       wvl_sol=wvl_sol))

    return r
Exemplo n.º 2
0
def get_wavelength_solutions(affine_tr_matrix, zdata, new_orders):
    """
    new_orders : output orders

    convert (x, y) of zdata (where x, y are pixel positions and z
    is wavelength) with affine transform, then derive a new wavelength
    solution.

    """
    from ecfit import get_ordered_line_data, fit_2dspec, check_fit

    affine_tr = matplotlib.transforms.Affine2D()
    affine_tr.set_matrix(affine_tr_matrix)

    d_x_wvl = {}
    for order, z in zdata.items():
        xy_T = affine_tr.transform(np.array([z.x, z.y]).T)
        x_T = xy_T[:, 0]
        d_x_wvl[order] = (x_T, z.wvl)

    _xl, _ol, _wl = get_ordered_line_data(d_x_wvl)
    # _xl : pixel
    # _ol : order
    # _wl : wvl * order

    x_domain = [0, 2047]
    #orders = igrins_orders[band]
    #y_domain = [orders_band[0]-2, orders_band[-1]+2]
    y_domain = [new_orders[0], new_orders[-1]]
    p, m = fit_2dspec(_xl,
                      _ol,
                      _wl,
                      x_degree=4,
                      y_degree=3,
                      x_domain=x_domain,
                      y_domain=y_domain)

    if 0:
        import matplotlib.pyplot as plt
        fig = plt.figure(figsize=(12, 7))
        orders_band = sorted(zdata.keys())
        check_fit(fig, xl, yl, zl, p, orders_band, d_x_wvl)
        fig.tight_layout()

    xx = np.arange(2048)
    wvl_sol = []
    for o in new_orders:
        oo = np.empty_like(xx)
        oo.fill(o)
        wvl = p(xx, oo) / o
        wvl_sol.append(list(wvl))

    if 0:
        json.dump(wvl_sol,
                  open("wvl_sol_phase0_%s_%s.json" % \
                       (band, igrins_log.date), "w"))

    return wvl_sol
Exemplo n.º 3
0
def get_wavelength_solutions(thar_echellogram_products, echel):
    from ecfit import get_ordered_line_data, fit_2dspec, check_fit

    from storage_descriptions import THAR_ALIGNED_JSON_DESC

    affine_tr = thar_echellogram_products[THAR_ALIGNED_JSON_DESC]["affine_tr"]

    d_x_wvl = {}
    for order, z in echel.zdata.items():
        xy_T = affine_tr.transform(np.array([z.x, z.y]).T)
        x_T = xy_T[:,0]
        d_x_wvl[order]=(x_T, z.wvl)

    xl, yl, zl = get_ordered_line_data(d_x_wvl)
    # xl : pixel
    # yl : order
    # zl : wvl * order

    x_domain = [0, 2047]
    orders_band = sorted(echel.zdata.keys())
    #orders = igrins_orders[band]
    y_domain = [orders_band[0]-2, orders_band[-1]+2]
    p, m = fit_2dspec(xl, yl, zl, x_degree=4, y_degree=3,
                      x_domain=x_domain, y_domain=y_domain)

    if 0:
        import matplotlib.pyplot as plt
        fig = plt.figure(figsize=(12, 7))
        check_fit(fig, xl, yl, zl, p, orders_band, d_x_wvl)
        fig.tight_layout()


    xx = np.arange(2048)
    wvl_sol = []
    for o in orders_band:
        oo = np.empty_like(xx)
        oo.fill(o)
        wvl = p(xx, oo) / o
        wvl_sol.append(list(wvl))

    if 0:
        json.dump(wvl_sol,
                  open("wvl_sol_phase0_%s_%s.json" % \
                       (band, igrins_log.date), "w"))

    from storage_descriptions import THAR_WVLSOL_JSON_DESC

    r = PipelineProducts("wavelength solution from ThAr")
    r.add(THAR_WVLSOL_JSON_DESC,
          PipelineDict(orders=orders_band,
                       wvl_sol=wvl_sol))

    return r
Exemplo n.º 4
0
def get_wavelength_solutions2(affine_tr, zdata, new_orders):
    """
    new_orders : output orders
    """
    from ecfit import get_ordered_line_data, fit_2dspec, check_fit

    d_x_wvl = {}
    for order, z in zdata.items():
        xy_T = affine_tr.transform(np.array([z.x, z.y]).T)
        x_T = xy_T[:, 0]
        d_x_wvl[order] = (x_T, z.wvl)

    xl, yl, zl = get_ordered_line_data(d_x_wvl)
    # xl : pixel
    # yl : order
    # zl : wvl * order

    x_domain = [0, 2047]
    orders_band = sorted(zdata.keys())
    #orders = igrins_orders[band]
    #y_domain = [orders_band[0]-2, orders_band[-1]+2]
    y_domain = [new_orders[0], new_orders[-1]]
    p, m = fit_2dspec(xl,
                      yl,
                      zl,
                      x_degree=4,
                      y_degree=3,
                      x_domain=x_domain,
                      y_domain=y_domain)

    if 0:
        import matplotlib.pyplot as plt
        fig = plt.figure(figsize=(12, 7))
        check_fit(fig, xl, yl, zl, p, orders_band, d_x_wvl)
        fig.tight_layout()

    xx = np.arange(2048)
    wvl_sol = []
    for o in new_orders:
        oo = np.empty_like(xx)
        oo.fill(o)
        wvl = p(xx, oo) / o
        wvl_sol.append(list(wvl))

    if 0:
        json.dump(wvl_sol,
                  open("wvl_sol_phase0_%s_%s.json" % \
                       (band, igrins_log.date), "w"))

    return wvl_sol
Exemplo n.º 5
0
def get_wavelength_solutions2(affine_tr, zdata,
                              new_orders):
    """
    new_orders : output orders
    """
    from ecfit import get_ordered_line_data, fit_2dspec, check_fit


    d_x_wvl = {}
    for order, z in zdata.items():
        xy_T = affine_tr.transform(np.array([z.x, z.y]).T)
        x_T = xy_T[:,0]
        d_x_wvl[order]=(x_T, z.wvl)

    xl, yl, zl = get_ordered_line_data(d_x_wvl)
    # xl : pixel
    # yl : order
    # zl : wvl * order

    x_domain = [0, 2047]
    orders_band = sorted(zdata.keys())
    #orders = igrins_orders[band]
    #y_domain = [orders_band[0]-2, orders_band[-1]+2]
    y_domain = [new_orders[0], new_orders[-1]]
    p, m = fit_2dspec(xl, yl, zl, x_degree=4, y_degree=3,
                      x_domain=x_domain, y_domain=y_domain)

    if 0:
        import matplotlib.pyplot as plt
        fig = plt.figure(figsize=(12, 7))
        check_fit(fig, xl, yl, zl, p, orders_band, d_x_wvl)
        fig.tight_layout()


    xx = np.arange(2048)
    wvl_sol = []
    for o in new_orders:
        oo = np.empty_like(xx)
        oo.fill(o)
        wvl = p(xx, oo) / o
        wvl_sol.append(list(wvl))

    if 0:
        json.dump(wvl_sol,
                  open("wvl_sol_phase0_%s_%s.json" % \
                       (band, igrins_log.date), "w"))

    return wvl_sol