一、简介

本文介绍了如何使用python将.stl格式的mesh转为.obj格式的文件。

二、将stl转为obj

1. 使用aspose-3d进行转换

1. 安装 aspose-3d

   pip install aspose-3d
   

2. 将stl转换为obj

   python">import aspose.threed as a3d
   stl_file_path = 'input.stl'
   obj_file_path = 'output.obj'
   scene = a3d.Scene.from_file(stl_file_path)
   scene.save(obj_file_path)
   

2. 使用trimesh进行转换

1. 安装 trimesh

   pip install numpy-stl trimesh
   

2. 将stl转换为obj

   python">#!/usr/bin/env python3
   import numpy as np
   import trimesh
   import trimesh.exchange.export
   import trimesh.exchange.obj
   from stl import meshdef stl_to_obj(stl_file_path, obj_file_path):# Load the STL filestl_mesh = mesh.Mesh.from_file(stl_file_path)# Extract vertices and facesvertices = stl_mesh.vectors.reshape(-1, 3)faces = np.arange(len(vertices)).reshape(-1, 3)# Calculate normals if not presentstl_mesh.update_normals()# Create a Trimesh object from the STL meshtrimesh_mesh = trimesh.Trimesh(vertices=vertices, faces=faces, face_normals=stl_mesh.normals)trimesh_mesh.export(obj_file_path, include_normals=True)print(f"Converted {stl_file_path} to {obj_file_path}")# Example usage
   stl_file_path = 'input.stl'
   obj_file_path = 'output.obj'
   stl_to_obj(stl_file_path, obj_file_path)