feat: implemented ability to control reaction direction reversing

src/loadbearing_wall/__init__.py

@@ -5,7 +5,7 @@
 The wall model is parameterizable and can represent any material
 """
 
-__version__ = "0.3.1"
+__version__ = "0.4.0"
 
 from loadbearing_wall.wall_model import LinearWallModel
 from loadbearing_wall import *

src/loadbearing_wall/linear_reactions.py

@@ -63,6 +63,7 @@ class LinearReactionString:
     magnitude_end_key: str
     location_start_key: str
     location_end_key: str
+    reverse_reaction_direction: bool = True
 
     @classmethod
     def from_projected_loads(
@@ -72,28 +73,32 @@ def from_projected_loads(
         magnitude_end_key: str,
         location_start_key: str,
         location_end_key: str,
+        reverse_reaction_direction: bool = True,
     ):
         w0 = magnitude_start_key
         w1 = magnitude_end_key
         x0 = location_start_key
         x1 = location_end_key
+        reverse_direction = -1 if reverse_reaction_direction else 1
         linear_reaction_components = {}
         for load_dir, load_cases in projected_loads.items():
             linear_reaction_components.setdefault(load_dir, {})
             for load_case, applied_loads in load_cases.items():
                 linear_reaction_components[load_dir].setdefault(load_case, [])
                 for applied_load in applied_loads:
                     linear_reaction = LinearReaction(
-                        applied_load[w0],
-                        applied_load.get(w1),
+                        applied_load[w0] * reverse_direction,
+                        applied_load.get(w1) * reverse_direction,
                         applied_load[x0],
                         applied_load.get(x1),
                     )
 
                     linear_reaction_components[load_dir][load_case].append(
                         linear_reaction
                     )
-        return cls(linear_reaction_components, w0, w1, x0, x1)
+        return cls(
+            linear_reaction_components, w0, w1, x0, x1, reverse_reaction_direction
+        )
 
     def extract_reaction_string(self, xa: float, xb: float, case: str, dir: str):
         """

src/loadbearing_wall/wall_model.py

@@ -253,6 +253,7 @@ def get_reactions(
             self.magnitude_end_key,
             self.location_start_key,
             self.location_end_key,
+            self.reverse_reaction_force_direction,
         )
         return lrs.consolidate_reactions(
             flatten=flattened, dir_key=direction_key, case_key=case_key

tests/test_wall_model.py

@@ -46,20 +46,24 @@ def test_wall_model_runs(WM0, WM1):
 
 
 def test_no_spread(WM0):
+    rxn = WM0.get_reactions(flattened=False)
+    assert rxn["Fz"]["D"] == [
+        {"dir": "Fz", "case": "D", "w1": -1 * 10.0, "w2": -1 * 10.0, "x1": 1.00, "x2": 1.75},
+        {"dir": "Fz", "case": "D", "w1": -1 * 210.0, "w2": -1 * 210.0, "x1": 1.750000000001, "x2": 2.249999999999},
+        {"dir": "Fz", "case": "D", "w1": -1 * 10.0, "w2": -1 * 10.0, "x1": 2.250000000001, "x2": 3.0},
+    ]
+    assert rxn["Fz"]["L"] == [
+        {"dir": "Fz", "case": "L", "w1": -1 * 15.0, "w2": -1 * 15.0, "x1": 0.00, "x2": 1.75},
+        {"dir": "Fz", "case": "L", "w1": -1 * 215.0, "w2": -1 * 215.0, "x1": 1.750000000001, "x2": 2.00},
+        {"dir": "Fz", "case": "L", "w1": -1 * 200.0, "w2": -1 * 200.0, "x1": 2.00, "x2": 2.249999999999},
+    ]
+    WM0.reverse_reaction_force_direction = False
     rxn = WM0.get_reactions(flattened=False)
     assert rxn["Fz"]["D"] == [
         {"dir": "Fz", "case": "D", "w1": 10.0, "w2": 10.0, "x1": 1.00, "x2": 1.75},
         {"dir": "Fz", "case": "D", "w1": 210.0, "w2": 210.0, "x1": 1.750000000001, "x2": 2.249999999999},
         {"dir": "Fz", "case": "D", "w1": 10.0, "w2": 10.0, "x1": 2.250000000001, "x2": 3.0},
     ]
-    assert rxn["Fz"]["L"] == [
-        {"dir": "Fz", "case": "L", "w1": 15.0, "w2": 15.0, "x1": 0.00, "x2": 1.75},
-        {"dir": "Fz", "case": "L", "w1": 215.0, "w2": 215.0, "x1": 1.750000000001, "x2": 2.00},
-        {"dir": "Fz", "case": "L", "w1": 200.0, "w2": 200.0, "x1": 2.00, "x2": 2.249999999999},
-
-        # {"dir": "Fz", "case": "L", "w1": 100.0, "x1": 0.5},
-        # {"dir": "Fz", "case": "L", "w1": 15.0, "w2": 15.0, "x1": 0.0, "x2": 2.0},
-    ]
 
 
 def test_45_spread(WM1):
@@ -68,8 +72,8 @@ def test_45_spread(WM1):
         {
             "dir": "Fz",
             "case": "D",
-            "w1": 30.0,
-            "w2": 30.0,
+            "w1": -1 * 30.0,
+            "w2": -1 * 30.0,
             "x1": 0.0,
             "x2": 4.0,
         },
@@ -79,8 +83,8 @@ def test_45_spread(WM1):
         {
             "dir": "Fz",
             "case": "L",
-            "w1": 32.5,
-            "w2": 32.5,
+            "w1": -1 * 32.5,
+            "w2": -1 * 32.5,
             "x1": 0.0,
             "x2": 4.0,
         },