Initial Commit

app.py

@@ -0,0 +1,147 @@
+import time
+import shutil
+import gradio as gr
+from data4co import TSPConcordeSolver, draw_tsp_problem, draw_tsp_solution
+
+
+TSP_DEFAULT_PATH = "media/tsp_default.png"
+TSP_PROBLEM_PATH = "media/tsp_problem.png"
+TSP_SOLUTION_PATH = "media/tsp_solution.png"
+
+
+def _handle_tsp_solve(
+    file_path: str,
+    norm: str,
+):
+    # Check file upload status
+    if file_path is None:
+        raise gr.Error("Please upload a '.tsp' file!")
+    if norm == '':
+        norm = "EUC_2D"
+    if norm != "EUC_2D" and norm != "GEO":
+        raise gr.Error("Invaild edge_weight_type! Only support 'GEO' and 'EUC_2D'.")
+    
+    # Begin solve and record the solving time
+    start_time = time.time()
+    solver = TSPConcordeSolver(scale=1)
+    solver.from_tsp(file_path, norm=norm)
+    solver.solve()
+    tours = solver.tours
+    points = solver.points
+    solved_time = time.time() - start_time
+
+    # Draw pictures
+    draw_tsp_problem(
+        save_path=TSP_PROBLEM_PATH,
+        points=points,
+    )
+    draw_tsp_solution(
+        save_path=TSP_SOLUTION_PATH,
+        points=points,
+        tours=tours
+    )
+
+    # Message
+    message = "Successfully solve the TSP problem, using time ({:.3f}s).".format(solved_time)
+    
+    return message, TSP_PROBLEM_PATH, TSP_SOLUTION_PATH
+    
+
+def handle_tsp_solve(
+    file_path: str,
+    norm: str,
+):
+    try:
+        message = _handle_tsp_solve(file_path, norm)
+        return message
+    except Exception as e:
+        message = str(e)
+        return message, TSP_PROBLEM_PATH, TSP_SOLUTION_PATH
+
+
+def handle_tsp_clear():
+    # Replace the original image with the default image
+    shutil.copy(
+        src=TSP_DEFAULT_PATH,
+        dst=TSP_PROBLEM_PATH
+    )
+    shutil.copy(
+        src=TSP_DEFAULT_PATH,
+        dst=TSP_SOLUTION_PATH
+    )
+    message = "successfully clear the files!"
+    return message, TSP_PROBLEM_PATH, TSP_SOLUTION_PATH
+
+
+with gr.Blocks() as tsp_page:
+
+    gr.Markdown(
+        '''
+        This space displays the solution to the TSP problem.
+        ## How to use this Space?
+        - Upload a '.tsp' file from tsplib .
+        - The images of the TSP problem and solution will be shown after you click the solve button.
+        - Click the 'clear' button to clear all the files.
+        ## Examples
+        - You can get the test examples from our [TSP Dataset Repo.](https://huggingface.co/datasets/SJTU-TES/TSP) 
+        '''
+    )
+
+    with gr.Row(variant="panel"):
+        with gr.Column(scale=7):
+            with gr.Row():
+                tsp_file = gr.File(
+                    file_types=[".tsp"],
+                    scale=3
+                )
+                info = gr.Textbox(
+                    value="",
+                    label="Log",
+                    scale=4,
+                )
+            norm = gr.Textbox(
+                label="Please input the edge_weight_type of the TSP file",
+            )
+        with gr.Column(scale=4):
+            tsp_problem_img = gr.Image(
+                value=TSP_PROBLEM_PATH, 
+                type="filepath", 
+                label="TSP Problem", 
+            )
+        with gr.Column(scale=4):
+            tsp_solution_img = gr.Image(
+                value=TSP_SOLUTION_PATH, 
+                type="filepath", 
+                label="TSP Solution", 
+            )
+    with gr.Row():
+        with gr.Column(scale=1, min_width=100):
+            solve_button = gr.Button(
+                value="Solve", 
+                variant="primary", 
+                scale=1
+            )
+        with gr.Column(scale=1, min_width=100):
+            clear_button = gr.Button(
+                "Clear", 
+                variant="secondary", 
+                scale=1
+            )
+        with gr.Column(scale=8):
+            pass         
+    
+    solve_button.click(
+        handle_tsp_solve,
+        [tsp_file, norm],
+        outputs=[info, tsp_problem_img, tsp_solution_img]
+    )
+    
+    clear_button.click(
+        handle_tsp_clear,
+        inputs=None,
+        outputs=[info, tsp_problem_img, tsp_solution_img]
+    )
+
+
+if __name__ == "__main__":
+    tsp_page.launch(debug = True)

example/a280.tsp

@@ -0,0 +1,287 @@
+NAME : a280
+COMMENT : drilling problem (Ludwig)
+TYPE : TSP
+DIMENSION: 280
+EDGE_WEIGHT_TYPE : EUC_2D
+NODE_COORD_SECTION
+  1 288 149
+  2 288 129
+  3 270 133
+  4 256 141
+  5 256 157
+  6 246 157
+  7 236 169
+  8 228 169
+  9 228 161
+ 10 220 169
+ 11 212 169
+ 12 204 169
+ 13 196 169
+ 14 188 169
+ 15 196 161
+ 16 188 145
+ 17 172 145
+ 18 164 145
+ 19 156 145
+ 20 148 145
+ 21 140 145
+ 22 148 169
+ 23 164 169
+ 24 172 169
+ 25 156 169
+ 26 140 169
+ 27 132 169
+ 28 124 169
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+280 280 133
+EOF

example/att48.tsp

@@ -0,0 +1,55 @@
+NAME : att48
+COMMENT : 48 capitals of the US (Padberg/Rinaldi)
+TYPE : TSP
+DIMENSION : 48
+EDGE_WEIGHT_TYPE : ATT
+NODE_COORD_SECTION
+1 6734 1453
+2 2233 10
+3 5530 1424
+4 401 841
+5 3082 1644
+6 7608 4458
+7 7573 3716
+8 7265 1268
+9 6898 1885
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+42 1916 1569
+43 7280 4899
+44 7509 3239
+45 10 2676
+46 6807 2993
+47 5185 3258
+48 3023 1942
+EOF

example/berlin52.tsp

@@ -0,0 +1,60 @@
+NAME: berlin52
+TYPE: TSP
+COMMENT: 52 locations in Berlin (Groetschel)
+DIMENSION: 52
+EDGE_WEIGHT_TYPE: EUC_2D
+NODE_COORD_SECTION
+1 565.0 575.0
+2 25.0 185.0
+3 345.0 750.0
+4 945.0 685.0
+5 845.0 655.0
+6 880.0 660.0
+7 25.0 230.0
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+10 650.0 1130.0
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+12 1220.0 580.0
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+16 725.0 370.0
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+51 1340.0 725.0
+52 1740.0 245.0
+EOF
+

example/ch130.tsp

@@ -0,0 +1,137 @@
+NAME: ch130
+TYPE: TSP
+COMMENT: 130 city problem (Churritz)
+DIMENSION: 130
+EDGE_WEIGHT_TYPE: EUC_2D
+NODE_COORD_SECTION
+1 334.5909245845 161.7809319139
+2 397.6446634067 262.8165330708
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+EOF

example/ch150.tsp

@@ -0,0 +1,157 @@
+NAME: ch150
+TYPE: TSP
+COMMENT: 150 city Problem (churritz)
+DIMENSION: 150
+EDGE_WEIGHT_TYPE: EUC_2D
+NODE_COORD_SECTION
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+2 612.1759508571 494.3166877396
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+EOF

requirements.txt

@@ -0,0 +1,3 @@
+gradio
+data4co
+matplotlib