pymeshlab

import pymeshlab as ml import os # Create a MeshSet object ms = ml.MeshSet() # Example: Load a mesh, apply decimation, and save it # In a real scenario, replace with your actual mesh file path. # For demonstration, we'll assume a 'teapot.ply' exists or skip loading. # Path to a dummy input/output file for demonstration input_path = os.path.join(os.getcwd(), "dummy_input.ply") output_path = os.path.join(os.getcwd(), "dummy_output.ply") # To make this runnable without an actual mesh file, we'll bypass actual file ops for new users # In a real use-case, you'd load an existing mesh: # ms.load_new_mesh(input_path) # For this quickstart, let's create a simple mesh programmatically if no file # This is not common for PyMeshLab, but makes the example runnable. # In a real scenario, you would have loaded an actual mesh file. # If you have a .ply file, uncomment the line below and point it to your file. # ms.load_new_mesh("/path/to/your/mesh.ply") # --- If you don't have a mesh file, this part makes the example executable --- # Create a dummy mesh if no file is loaded (for quickstart execution only) if ms.number_meshes() == 0: print("No mesh loaded, creating a dummy mesh for demonstration...") # This is a highly simplified dummy mesh creation, not typical PyMeshLab usage # It's just to ensure the filter application doesn't fail immediately. try: ms.add_color_sphere(radius=1.0, quality=2) print("Dummy sphere created.") except Exception as e: print(f"Could not create dummy sphere: {e}. PyMeshLab is best used with existing mesh files.") # If even dummy creation fails, then the library isn't working as expected # For this quickstart, we assume it works. # --- End of dummy mesh creation --- if ms.number_meshes() > 0: print(f"Number of meshes before decimation: {ms.current_mesh().vertex_number()}") # Apply a decimation filter (e.g., reduce mesh complexity by 50%) # The parameters are specific to MeshLab filters. ms.meshing_decimation_quadric_edge_collapse(TargetPerc=0.5) print(f"Number of meshes after decimation: {ms.current_mesh().vertex_number()}") # Save the modified mesh # In a real scenario, ensure the output path is valid and writable # ms.save_current_mesh(output_path) # print(f"Decimated mesh saved to: {output_path}") else: print("No mesh available to process. Please load a valid mesh file for actual use.") print("PyMeshLab quickstart complete.")