Anfang triaxial

ellipsoide.py

@@ -3,7 +3,7 @@ import winkelumrechnungen as wu
 import ausgaben as aus
 
 
-class Ellipsoid:
+class EllipsoidBiaxial:
     def __init__(self, a: float, b: float):
         self.a = a
         self.b = b
@@ -81,3 +81,47 @@ class Ellipsoid:
         for i in range(len(phii)):
             print(f"P3[{i}]: {aus.gms('phi', phii[i], 5)}\th = {round(hi[i], 5)} m")
         return phi, lamb, h
+
+class EllipsoidTriaxial:
+    def __init__(self, ax: float, ay: float, b: float):
+        self.ax = ax
+        self.ay = ay
+        self.b = b
+        self.ex = np.sqrt(self.ax**2 - self.b**2)
+        self.ey = np.sqrt(self.ay**2 - self.b**2)
+        self.ee = np.sqrt(self.ax**2 - self.ay**2)
+
+    @classmethod
+    def init_name(cls, name: str):
+        if name == "BursaFialova1993":
+            ax = 6378171.36
+            ay = 6378101.61
+            b = 6356751.84
+            return cls(ax, ay, b)
+        elif name == "BursaSima1980":
+            ax = 6378172
+            ay = 6378102.7
+            b = 6356752.6
+            return cls(ax, ay, b)
+        elif name == "Eitschberger1978":
+            ax = 6378173.435
+            ay = 6378103.9
+            b = 6356754.4
+            return cls(ax, ay, b)
+        elif name == "Bursa1972":
+            ax = 6378173
+            ay = 6378104
+            b = 6356754
+            return cls(ax, ay, b)
+        elif name == "Bursa1970":
+            ax = 6378173
+            ay = 6378105
+            b = 6356754
+            return cls(ax, ay, b)
+
+    def ell2cart(self, beta, lamb, u):
+        s1 = u**2 - self.b**2
+        s2 = -self.ay**2 * np.sin(beta)**2 - self.b**2 * np.cos(beta)**2
+        s3 = -self.ax**2 * np.sin(lamb)**2 - self.ay**2 * np.cos(lamb)**2
+
+        x = np.sqrt(u**2 + self.ex**2) * np.sqrt(np.cos(beta)**2 + self.ee**2/self.ex**2 * np.sin(beta)**2)