Blender Python api 顶点、边和面选择

Question

使用我从 获得的以下代码https://blender.stackexchange.com/questions/43127/how-do-i-select-specific-vertices-in-blender-using-python-script。我可以选择顶点，但是当我取消注释边缘或面并注释顶点时，它不起作用。我只是猜测了“edges”和“facees”的拼写，但它正确吗？

import bpy

#clear scene, make mesh
bpy.ops.object.mode_set(mode = 'OBJECT')
bpy.ops.object.select_all(action='SELECT')
bpy.ops.object.delete(use_global=False)
bpy.ops.mesh.primitive_cube_add(size=2, enter_editmode=False, align='WORLD', location=(0, 0, 0), rotation=(1.5708, 1.5708, 0))
obj = bpy.data.objects["Cube"]

#select vertex
obj = bpy.context.active_object
bpy.ops.object.mode_set(mode = 'EDIT') 
bpy.ops.mesh.select_mode(type="VERT")
#bpy.ops.mesh.select_mode(type="EDGE")
#bpy.ops.mesh.select_mode(type="FACE")
bpy.ops.mesh.select_all(action = 'DESELECT')
bpy.ops.object.mode_set(mode = 'OBJECT')
obj.data.vertices[5].select = True
#obj.data.edges[1].select = True
#obj.data.faces[1].select = True
bpy.ops.object.mode_set(mode = 'EDIT') 

Answer 1

我最终用“多边形”一词替换了“面”一词，并且它起作用了。

import bpy

#clear scene, make mesh
bpy.ops.object.mode_set(mode = 'OBJECT')
bpy.ops.object.select_all(action='SELECT')
bpy.ops.object.delete(use_global=False)
bpy.ops.mesh.primitive_cube_add(size=2, enter_editmode=False, align='WORLD', location=(0, 0, 0), rotation=(1.5708, 1.5708, 0))
obj = bpy.data.objects["Cube"]

#select vertex
obj = bpy.context.active_object
bpy.ops.object.mode_set(mode = 'EDIT') 
#bpy.ops.mesh.select_mode(type="VERT")
#bpy.ops.mesh.select_mode(type="EDGE")
bpy.ops.mesh.select_mode(type="FACE")
bpy.ops.mesh.select_all(action = 'DESELECT')
bpy.ops.object.mode_set(mode = 'OBJECT')
#obj.data.vertices[2].select = True
#obj.data.edges[7].select = True
obj.data.polygons[2].select = True
bpy.ops.object.mode_set(mode = 'EDIT') 

Answer 2

在编辑模式下，Blender 使用网格的“副本”，该副本在您退出此模式之前不会保存。在对象模式下，更改是立即的。

bpy.ops.object.mode_set(mode = 'OBJECT')
act_obj = bpy.context.active_object.name
#No need to select to apply transformation
bpy.data.meshes[act_obj].vertices[2].co[2] +=0.1