增加模块；增加主调用命令

prosail_method/modules/load_coefficients.py

@@ -0,0 +1,32 @@
+import numpy as np
+
+def load_coefficients(filepath):
+    """
+    Load spectral coefficients from a full-format PROSAIL data file (e.g., dataSpec_PDB.txt).
+
+    Returns:
+        wl     : ndarray, wavelength (nm)
+        nr     : ndarray, refractive index of leaf material
+        Kab    : ndarray, absorption coefficient of chlorophyll (a+b)
+        Kcar   : ndarray, absorption coefficient of carotenoids
+        Kant   : ndarray, absorption coefficient of anthocyanins
+        Kbrown : ndarray, absorption coefficient of brown pigments
+        Kw     : ndarray, absorption coefficient of water
+        Km     : ndarray, absorption coefficient of dry matter
+        Rsoil1 : ndarray, dry soil reflectance
+        Rsoil2 : ndarray, wet soil reflectance
+    """
+    data = np.loadtxt(filepath, comments='%', delimiter=None)
+
+    wl     = data[:, 0]
+    nr     = data[:, 1]
+    Kab    = data[:, 2]
+    Kcar   = data[:, 3]
+    Kant   = data[:, 4]
+    Kbrown = data[:, 5]
+    Kw     = data[:, 6]
+    Km     = data[:, 7]
+    Rsoil1 = data[:, 10]
+    Rsoil2 = data[:, 11]
+
+    return wl, nr, Kab, Kcar, Kant, Kbrown, Kw, Km, Rsoil1, Rsoil2