update

examples/batteries/batteries.py → examples/batteries/01_calculate-batteries.py

@@ -10,7 +10,7 @@
 
 ca = bwa.ContributionAnalysis()
 
-PROJECT = "T-reX-SSP2-cutoff"
+PROJECT = "T-reX-premise-SSP2-cutoff"
 KEY = "market for battery, Li-ion, rechargeable"
 
 KEYWORDS_METHODS = [
@@ -23,8 +23,8 @@
 
 SEARCH_ACTIVITIES = 0
 SEARCH_METHODS = 0
-GET_RESULTS = 1
-GET_SUPPLY_CHAIN_RESULTS = 0
+GET_RESULTS = 0
+GET_SUPPLY_CHAIN_RESULTS = 1
 
 CWD = Path.cwd()
 DIR_DATA = CWD / "data"
@@ -286,8 +286,13 @@ def get_supply_chain_results():
 
     if len(methods_waste) == 0:
         print("\t\t ## No waste methods found ##")
+    else:
+        print(f"\t\t Waste methods: {len(methods_waste)}")
     if len(methods_material) == 0:
         print("\t\t ## No material methods found ##")
+    else:
+        print(f"\t\t Material methods: {len(methods_material)}")
+
 
     dbs = activities.database.unique()
 
@@ -346,9 +351,9 @@ def get_supply_chain_results():
                     df_result = bwa.compare_activities_by_grouped_leaves(
                         df_acts.activity_object,
                         method,
-                        max_level=5,
+                        max_level=3,
                         output_format="pandas",
-                        cutoff=0.025,
+                        cutoff=0.125,
                     )
 
                 df_single = df_act.join(df_result)

examples/batteries/visualisation_scatter.py → examples/batteries/04_visualisation_scatter.py

@@ -121,13 +121,17 @@ def replace_strings_in_string(string, term_replacements):
                 continue
 
             fig, ax = plt.subplots()
-            title_raw = f"{df_methods_2['method_0'].iloc[0]}\n{method_2}"
+            title_raw = f"{df_methods_2['method_0'].iloc[0]}--- material/waste footprints\n{method_1} --- {method_2}"
 
             title = replace_strings_in_string(title_raw, term_replacements)
 
             plt.title(title, fontsize=8)
             ax.set_xlabel("Year", fontsize=7)
             ax.set_ylabel(f"{df_methods_2['unit'].iloc[0]} / kg (battery)", fontsize=7)
+
+            # reduce number of tick labels
+            years = [year for year in years if year % 10 == 0]
+
             ax.set_xticks(years)
             ax.set_xticklabels(years, fontsize=6)
             ax.yaxis.set_tick_params(labelsize=6)
@@ -209,7 +213,7 @@ def replace_strings_in_string(string, term_replacements):
             filename_safe = filename.replace("/", "|")  # Replacing any forward slashes to avoid path issues
             filepath = os.path.join("visualisation/individual-methods", filename_safe)
             plt.savefig(filepath, format="svg", bbox_inches="tight")  # Saving as SVG
-            plt.show()
+            # plt.show()
             plt.close(fig)
 
             # print progress

examples/batteries/visualisation_scatter_combine.py → examples/batteries/04b_visualisation_scatter_combine.py

@@ -44,7 +44,7 @@
 )
 
 # Create a PDF file
-c = canvas.Canvas("combined_methods.pdf", pagesize=(page_width, page_height))
+c = canvas.Canvas("visualisation/scatter-combined_methods.pdf", pagesize=(page_width, page_height))
 
 # Add the title
 c.setFont("Libertine", 16)  # Set Libertine font and size for the title

examples/batteries/similar_methods.py → examples/batteries/04c_similar_methods.py

@@ -49,7 +49,7 @@
 print(f"Total page size set to: {page_width}x{page_height}")
 
 # Create a PDF file
-c = canvas.Canvas("similar_methods.pdf")
+c = canvas.Canvas("visualisation/scatter-similar_methods.pdf")
 c.setPageSize((page_width, page_height))
 
 # Initialize Y-coordinate for drawing
@@ -89,4 +89,4 @@
 
 # Save the PDF
 c.save()
-print("PDF created: similar_methods.pdf")
+print("PDF created: scatter-similar_methods.pdf")

examples/batteries/visualisation_bar.py → examples/batteries/05_visualisation_bar.py

@@ -266,7 +266,7 @@ def replace_strings_in_string(string, term_replacements):
 
             # Plotting setup (title, labels, legend, etc.)
             title_raw = f"Contribution to total by sector for Li-ion battery `{activity}'"
-            method_text = f"LCA Method: ({method[0]}, {method[2]})"
+            method_text = f"LCA Method: ({method[0]}, {method[1]}, {method[2]})"
             ax.text(
                 0.01,
                 1.02,  # x, y coordinates in axes fraction

examples/batteries/README.md

@@ -0,0 +1,22 @@
+# T-reX: Li-ion battery example study
+
+This example study demonstrates the use of T-reX to explore the supply chain material demands and waste generation of five lithium ion batteries from ecoinvent 3.9.1. Also inclusive are two future scenario paths created by premise, forecasting the ecoinvent database until 2100.
+
+
+## Step by step
+
+### Before running this example
+
+1. Install T-reX and its dependencies
+2. Manipulate your brightway project and its databases with T-reX
+3. Change the settings in the case study code to match your project and your needs (i.e. method sets, database names, etc.)
+
+### Running the example
+
+1. Run the `batteries.py` script to generate the results
+   * toggle the component functions, start with generating the `methods.csv' and `activities.csv` files
+   * if the methods and activities look good, then toggle the calculation functions and run the `batteries.py` script again
+   * note that the contribution analysis can take a very long time with many databases, methods, and activities (i.e. hours to days if there are many)
+2. Run the `results.py` script to process the results
+3. Run the `results_significant.py` script
+4. Run the visualisation scripts to generate the plots