fix: fault interpolation taking a long time

faults were being given too many DOF. because the bounding box was
not correct.

LoopStructural/modelling/fault/fault_builder.py

@@ -32,8 +32,8 @@ def __init__(
 
         StructuralFrameBuilder.__init__(self, interpolator, interpolators, **kwargs)
         self.model = model
-        self.origin = np.zeros(3)  # self.model.bounding_box[0, :]
-        self.maximum = np.zeros(3)  # self.model.bounding_box[1, :]
+        self.origin = np.array([np.nan, np.nan, np.nan])
+        self.maximum = np.array([np.nan, np.nan, np.nan])  # self.model.bounding_box[1, :]
         # define a maximum area to mesh adding buffer to model
         # buffer = .2
         self.minimum_origin = self.model.bounding_box[