Update bht_algorithm_3D.py

Corrected three lines, where quadtree instead of octtree was written

jobs/src/bht_algorithm_3D.py

@@ -22,7 +22,7 @@ class MainApp:
             self.rootNode.insert(particle)
 
     def ResetTree(self, particles):
-        """Reset the Quadtree by reinitializing the root node."""
+        """Reset the Octree by reinitializing the root node."""
         # Define the size of the rootNode based on the positions of the particles
         #min_x = min([particle.x for particle in particles])
         #min_y = min([particle.y for particle in particles])
@@ -161,8 +161,8 @@ class TreeNode:
         mid_x = self.x + self.width / 2
         mid_y = self.y + self.height / 2
         mid_z = self.z + self.depth / 2
-        quad_index = (particle.x >= mid_x) + 2 * (particle.y >= mid_y) + 4 * (particle.z >= mid_z)
-        return quad_index
+        oct_index = (particle.x >= mid_x) + 2 * (particle.y >= mid_y) + 4 * (particle.z >= mid_z)
+        return oct_index
 
     def print_tree(self, depth_=0):
         """Print the structure of the Octree.
@@ -363,4 +363,4 @@ class TreeNode:
                 self.mass = total_mass
             else:
                 self.center_of_mass = np.array([0.0, 0.0, 0.0])
-                self.mass = 0
\ No newline at end of file
+                self.mass = 0