增加模块；增加主调用命令

prosail_method/modules/dladgen.py

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+import numpy as np
+from modules.dcum import dcum  # 确保你有这个函数
+
+def dladgen(a, b):
+    """
+    Generate Leaf Inclination Distribution Function (LIDF)
+    using a two-parameter beta distribution.
+
+    Parameters:
+        a, b : shape parameters of beta distribution
+
+    Returns:
+        freq  : frequency (probability) per inclination class (length 13)
+        litab : central inclination angles (degrees)
+    """
+    litab = np.array([5., 15., 25., 35., 45., 55., 65., 75., 81., 83., 85., 87., 89.])
+    freq = np.zeros_like(litab)
+
+    # First 8 bins: 10° steps
+    for i in range(8):
+        t = (i + 1) * 10
+        freq[i] = dcum(a, b, t)
+
+    # Next 4 bins: finer steps from 80° to 89°
+    for i in range(8, 12):
+        t = 80.0 + (i - 8 + 1) * 2.0
+        freq[i] = dcum(a, b, t)
+
+    freq[12] = 1.0  # total cumulative = 1
+
+    # Convert cumulative to class probabilities
+    for i in range(12, 0, -1):
+        freq[i] -= freq[i - 1]
+
+    return freq, litab