我正在尝试编写一个Python脚本,将三角形网格对象转换为四边形网格对象。
例如,图像 (a) 将是我的输入 (
.obj/.stl
) 文件,图像 (b) 将是输出。
我是网格算法或它们如何协同工作的菜鸟。到目前为止,这是我写的脚本:
import bpy
inp = 'mushroom-shelve-1-merged.obj'
# Load the triangle mesh OBJ file
bpy.ops.import_scene.obj(filepath=inp,
use_smooth_groups=False,
use_image_search=False)
# Get the imported mesh
obj = bpy.context.selected_objects[0]
# Convert triangles to quads
# The `beauty` parameter can be set to False if desired
bpy.ops.object.mode_set(mode='EDIT')
bpy.ops.mesh.select_all(action='SELECT')
bpy.ops.mesh.tris_convert_to_quads(beauty=True)
bpy.ops.object.mode_set(mode='OBJECT')
# Export to OBJ with quads
bpy.ops.export_scene.obj(filepath='quad_mesh.obj')
这会导致以下错误:
Traceback (most recent call last):
File "/home/arrafi/mesh-convert-application/test.py", line 8, in <module>
bpy.ops.import_scene.obj(filepath=inp,
File "/home/arrafi/mesh-convert-application/venv/lib/python3.10/site-packages/bpy/4.0/scripts/modules/bpy/ops.py", line 109, in __call__
ret = _op_call(self.idname_py(), kw)
AttributeError: Calling operator "bpy.ops.import_scene.obj" error, could not be found
任何有关我在这里做错的事情的帮助将不胜感激。
结果
bpy.ops.import_scene.obj
在 bpy==4
处被删除,这是 python 的最新的 Blender-api,因此出现错误。在bpy>4
中你必须使用bpy.ops.wm.obj_import(filepath='')
我刚刚降级为
bpy==3.60
以直接在当前场景中导入对象。
pip install bpy=3.6.0
我还修改了我的脚本,以在三角形网格中输入
.obj
文件,然后将网格转换为四边形,然后导出为 stl
和 obj
。这是我的工作脚本:
def convert_tris_to_quads(obj_path, export_folder):
try:
filename = os.path.basename(obj_path).split('.')[0]
logging.info(f"Importing {obj_path}")
bpy.ops.object.select_all(action='DESELECT')
bpy.ops.object.select_by_type(type='MESH')
bpy.ops.object.delete()
bpy.ops.import_scene.obj(filepath=obj_path)
print("current objects in the scene: ", [obj for obj in bpy.context.scene.objects])
for obj in bpy.context.selected_objects:
bpy.context.view_layer.objects.active = obj
logging.info("Converting mesh")
bpy.ops.object.mode_set(mode='EDIT')
bpy.ops.mesh.select_all(action='SELECT')
bpy.ops.mesh.tris_convert_to_quads()
bpy.ops.object.mode_set(mode='OBJECT')
# Export to OBJ
obj_export_path = export_folder + filename + '_quad.obj'
logging.info(f"Exporting OBJ to {obj_export_path}")
bpy.ops.export_scene.obj(filepath=obj_export_path, use_selection=True)
# Export to STL
stl_export_path = export_folder + filename + '_quad.stl'
logging.info(f"Exporting STL to {stl_export_path}")
bpy.ops.export_mesh.stl(filepath=stl_export_path, use_selection=True)
except Exception as e:
logging.error(f"Error processing {obj_path}: {e}")
return False
这可能仍然不是最好的方法,所以如果有人知道更好的方法,请告诉我。