Initial commit

esbo_etc/classes/optical_component/StrayLight.py

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+from esbo_etc.classes.optical_component.AOpticalComponent import AOpticalComponent
+from esbo_etc.classes.ITransmissive import ITransmissive
+from esbo_etc.classes.SpectralQty import SpectralQty
+import astropy.units as u
+
+
+class StrayLight(AOpticalComponent):
+    """
+    A class to model additional stray light sources e.g. zodiacal light
+    """
+    def __init__(self, parent: ITransmissive, emission: str = None) -> "Atmosphere":
+        """
+        Initialize a new stray light source
+
+        Parameters
+        ----------
+        parent : ITransmissive
+            The parent element from which the electromagnetic radiation is received.
+            This element is usually of type Target or StrayLight.
+        emission : str
+            Path to the file containing the spectral radiance of the stray light source.
+            The format of the file will be guessed by `astropy.io.ascii.read()`.
+        """
+        # Read the emission
+        emission_sqty = SpectralQty.fromFile(emission, wl_unit_default=u.nm,
+                                                       qty_unit_default=u.W / (u.m**2 * u.nm * u.sr))
+        # Create dummy transmittance
+        transmittance_sqty = SpectralQty(emission_sqty.wl, [1] * len(emission_sqty.wl) * u.dimensionless_unscaled)
+        # Initialize the super class
+        super().__init__(parent, transmittance_sqty, emission_sqty)