Update app.py

app.py

@@ -4,44 +4,41 @@ import numpy as np
 from PIL import Image
 import tempfile
 
-def apply_masked_visuals(section):
+def apply_rust_texture(section):
     # Load the original mesh
     mesh = trimesh.load('train.glb', force='mesh')
-    im = Image.open('rust_steel.png').convert('RGB')
+    rust_texture = Image.open('rust_steel.png').convert('RGB')
 
-    # Calculate the bounding box coordinates
+    # Train body selection logic
     bounds = mesh.bounds
     min_bounds, max_bounds = bounds[0], bounds[1]
-    mid_x = (max_bounds[0] + min_bounds[0]) / 2
-    mid_y = (max_bounds[1] + min_bounds[1]) / 2
-    mid_z = (max_bounds[2] + min_bounds[2]) / 2
-
-    # Define sections with indices
-    sections = {
-        'upper': np.where(mesh.vertices[:, 2] > mid_z)[0],
-        'lower': np.where(mesh.vertices[:, 2] <= mid_z)[0],
-        'middle': np.where((mesh.vertices[:, 0] >= min_bounds[0]) & (mesh.vertices[:, 0] <= max_bounds[0]) &
-                           (mesh.vertices[:, 1] >= min_bounds[1]) & (mesh.vertices[:, 1] <= max_bounds[1]) &
-                           (mesh.vertices[:, 2] >= min_bounds[2]) & (mesh.vertices[:, 2] <= max_bounds[2]))[0],
-        'top': np.where(mesh.vertices[:, 1] > mid_y)[0],
-        'right': np.where(mesh.vertices[:, 0] > mid_x)[0]
-    }
-
-    # Select the indices for the specified section
-    selected_indices = sections[section]
-
-    # Ensure that all indices are valid
+    body_height = max_bounds[2] - min_bounds[2]
+    body_midpoint = (max_bounds + min_bounds) / 2
+
+    # Define more sophisticated criteria for the body selection
+    if section == 'body':
+        # Assuming the body is within certain height and centered horizontally
+        selected_indices = np.where((mesh.vertices[:, 2] >= min_bounds[2]) & 
+                                    (mesh.vertices[:, 2] <= min_bounds[2] + 0.75 * body_height) &
+                                    (mesh.vertices[:, 0] >= min_bounds[0]) &
+                                    (mesh.vertices[:, 0] <= max_bounds[0]))[0]
+
+    elif section == 'roof':
+        # Roof is the top quarter of the height
+        selected_indices = np.where(mesh.vertices[:, 2] > min_bounds[2] + 0.75 * body_height)[0]
+
+    # Ensure indices are within bounds
     valid_indices = selected_indices[selected_indices < len(mesh.vertices)]
 
-    # Create or re-initialize the UV array
+    # Create or initialize UV mapping
     uv = np.random.rand(len(mesh.vertices), 2)
 
-    # Generate new UV coordinates only for the selected section
+    # Apply the rust texture only to the selected indices
     new_uv = np.copy(uv)
     new_uv[valid_indices, :] = np.random.rand(len(valid_indices), 2)
 
-    # Create a new material with the image texture
-    material = trimesh.visual.texture.SimpleMaterial(image=im)
+    # Create a new material with the rust texture image
+    material = trimesh.visual.texture.SimpleMaterial(image=rust_texture)
     new_visuals = trimesh.visual.TextureVisuals(uv=new_uv, material=material)
 
     # Create a new mesh with the updated visuals
@@ -54,12 +51,12 @@ def apply_masked_visuals(section):
     return temp_file.name
 
 with gr.Blocks() as app:
-    gr.Markdown("### 3D Model Texture Application")
+    gr.Markdown("### Apply Rust Texture to Train Body Section")
     original_model = gr.Model3D('train.glb', label="Original Model")
     modified_model = gr.Model3D(label="Textured Model")
 
-    section_dropdown = gr.Dropdown(choices=['upper', 'lower', 'middle', 'top', 'right'], label="Select Section")
-    button = gr.Button("Apply Texture to Section")
-    button.click(apply_masked_visuals, inputs=section_dropdown, outputs=modified_model)
+    section_dropdown = gr.Dropdown(choices=['body', 'roof'], label="Select Section")
+    button = gr.Button("Apply Rust Texture to Section")
+    button.click(apply_rust_texture, inputs=section_dropdown, outputs=modified_model)
 
 app.launch()