Subsystem set Depth to negative value:

In setEndPosition method in Subsystem, when sink is True, and when calling getDepthFromBathymetry, the outputed z is positive (when seabedMod==0 and I'm assuming the same is true for other modes. The bathymetry files I've seen have positive depth values) Therefore, it must be multiplied by a negative sign

moorpy/subsystem.py

@@ -265,7 +265,7 @@ def setEndPosition(self, r, endB, sink=False):
 
         if sink: # set z coordinate on seabed
             z, _ = self.getDepthFromBathymetry(r[0], r[1])
-            r = np.array([r[0], r[1], z])  # (making a copy of r to not overwrite it)
+            r = np.array([r[0], r[1], -z])  # (making a copy of r to not overwrite it)
 
         # set end coordinates in global frame just like for a Line
         if endB == 1: