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new addon simple_deform_helper #104464

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EMM wants to merge 29 commits from Guai_Wo_Ge_EMM/blender-addons:simple_deform_helper into main
pull from: Guai_Wo_Ge_EMM/blender-addons:simple_deform_helper
merge into: blender:main

When changing the target branch, be careful to rebase the branch in your fork to match. See documentation.
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# SimpleDeformHelper
# Move to [AIGODLIKE](https://github.com/AIGODLIKE/popoti_align_helper.git)
Simple Deform Modifier Visual adjustment tool
You can modify parameters more intuitively by dragging the gizmo directly
![emm.jpeg](image/emm.jpeg)
To display the gizmo, you need to select the active object and the active modifier is a simple deformation modifier
1. Angle control gizmo
You can drag to control the modifier's value
2. Axial control gizmo
Modify the deformation axis of the active modifier by clicking
Shortcut keys (when dragging the gizmo):
X Y Z: modify the modifier's deformation axis
A: Show deformation axis gizmo
Scroll wheel: switch the origin control mode
Toggle the axial gizmo (displayed only when the mode is bending):
6 directions, each direction has two directions that can be switched
While dragging the upper and lower limits gizmo, you can hold down Ctrl to maintain the relative distance between the upper and lower limits

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# SimpleDeformHelper
Simple Deform Modifier Visual adjustment tool
You can modify parameters more intuitively by dragging the gizmo directly
![emm.jpeg](image/emm.jpeg)
显示Gizmo需要选择活动物体并且活动修改器为简易形变修改器
1.角度控制Gizmo
可通过拖动来控制修改器的值
2.轴向控制Gizmo
通过单击修改活动修改器的形变轴向
快捷键(在拖动Gizmo时):
X Y Z:修改修改器的变形轴
A:显示变形轴Gizmo
滚轮滚动:切换原点控制模式
切换轴向Gizmo(只有在模式为弯曲时才可显示):
6个方向每个方向有两个方向可切换
在拖动上下限Gizmo时可以按住Ctrl 保持上下限之间的相对距离

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# SPDX-License-Identifier: GPL-2.0-or-later
from . import gizmo, operators, preferences, data,timers,translate
bl_info = {
"name": "SimpleDeformHelper",
"author": "AIGODLIKE Community(BlenderCN辣椒,小萌新)",
"version": (0, 1, 1),
"blender": (3, 0, 0),
"location": "3D View -> Select an object and the active modifier is simple deformation",
"description": "Simple Deform visualization adjustment tool",
"doc_url": "https://github.com/Yorha4D/simple_deform_helper/blob/main/README_CN.md",
"wiki_url": "",
"category": "3D View"
}
module_tuple = (
gizmo,
timers,
translate,
operators,
preferences,
)
def register():
data.Data.load_gizmo_data()
for item in module_tuple:
item.register()
def unregister():
for item in module_tuple:
item.unregister()

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from os.path import dirname, basename, realpath
G_MODIFIERS_PROPERTY = [ # copy modifier data
'angle',
'deform_axis',
'deform_method',
'factor',
'invert_vertex_group',
'limits',
'lock_x',
'lock_y',
'lock_z',
'origin',
'show_expanded',
'show_in_editmode',
'vertex_group',
]
G_INDICES = (
(0, 1), (0, 2), (1, 3), (2, 3),
(4, 5), (4, 6), (5, 7), (6, 7),
(0, 4), (1, 5), (2, 6), (3, 7))
G_NAME = 'ViewSimpleDeformGizmo_' # Temporary use files
G_CON_LIMIT_NAME = G_NAME + 'constraints_limit_rotation' # 约束名称
G_ADDON_NAME = basename(dirname(realpath(__file__))) # "simple_deform_helper"
class Data:
G_GizmoCustomShapeDict = {}
G_SimpleDeformGizmoHandlerDit = {}
@classmethod
def load_gizmo_data(cls) -> None:
import json
import os
json_path = os.path.join(os.path.dirname(__file__), "gizmo.json")
with open(json_path, "r") as file:
cls.G_GizmoCustomShapeDict = json.load(file)
@staticmethod
def from_bmesh_get_triangle_face_co(mesh: 'bpy.types.Mesh') -> list:
"""
:param mesh: 输入一个网格数据
:type mesh: bpy.data.meshes
:return list: 反回顶点列表[[co1,co2,co3],[co1,co2,co3]...]
"""
import bmesh
bm = bmesh.new()
bm.from_mesh(mesh)
bm.faces.ensure_lookup_table()
bm.verts.ensure_lookup_table()
bmesh.ops.triangulate(bm, faces=bm.faces)
co_list = [list(float(format(j, ".4f")) for j in vert.co) for face in bm.faces for vert in face.verts]
bm.free()
return co_list

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import bgl
import blf
import bpy
import gpu
from gpu_extras.batch import batch_for_shader
from mathutils import Vector
from .data import G_INDICES, G_MODIFIERS_PROPERTY, G_NAME, Data
from .utils import Pref, Utils
class Handler(Data):
@classmethod
def add_handler(cls):
"""向3d视图添加绘制handler
并将其存储下来
"""
if 'handler' not in cls.G_SimpleDeformGizmoHandlerDit:
cls.G_SimpleDeformGizmoHandlerDit['handler'] = bpy.types.SpaceView3D.draw_handler_add(
Draw3D.draw_bound_box, (), 'WINDOW', 'POST_VIEW')
@classmethod
def del_handler_text(cls):
if 'handler_text' in cls.G_SimpleDeformGizmoHandlerDit:
bpy.types.SpaceView3D.draw_handler_remove(
cls.G_SimpleDeformGizmoHandlerDit['handler_text'], 'WINDOW')
cls.G_SimpleDeformGizmoHandlerDit.pop('handler_text')
@classmethod
def del_handler(cls):
data = bpy.data
if data.meshes.get(G_NAME):
data.meshes.remove(data.meshes.get(G_NAME))
if data.objects.get(G_NAME):
data.objects.remove(data.objects.get(G_NAME))
cls.del_handler_text()
if 'handler' in cls.G_SimpleDeformGizmoHandlerDit:
bpy.types.SpaceView3D.draw_handler_remove(
cls.G_SimpleDeformGizmoHandlerDit['handler'], 'WINDOW')
cls.G_SimpleDeformGizmoHandlerDit.clear()
class Draw3D(Pref, Data):
@classmethod
def draw_3d_shader(cls, pos, indices, color=None, *, shader_name='3D_UNIFORM_COLOR', draw_type='LINES'):
"""
:param draw_type:
:param shader_name:
:param color:
:param indices:
:param pos:
:type pos:list ((0,0,0),(1,1,1))
2D_FLAT_COLOR - 2D_IMAGE - 2D_SMOOTH_COLOR - 2D_UNIFORM_COLOR - 3D_FLAT_COLOR - 3D_SMOOTH_COLOR - 3D_UNIFORM_COLOR - 3D_POLYLINE_FLAT_COLOR - 3D_POLYLINE_SMOOTH_COLOR - 3D_POLYLINE_UNIFORM_COLOR
('POINTS', 'LINES', 'TRIS', 'LINE_STRIP', 'LINE_LOOP','TRI_STRIP',
'TRI_FAN', 'LINES_ADJ', 'TRIS_ADJ', 'LINE_STRIP_ADJ')
`NONE`, `ALWAYS`, `LESS`, `LESS_EQUAL`, `EQUAL`, `GREATER` and `GREATER_EQUAL`
"""
shader = gpu.shader.from_builtin(shader_name)
if draw_type == 'POINTS':
batch = batch_for_shader(shader, draw_type, {'pos': pos})
else:
batch = batch_for_shader(
shader, draw_type, {'pos': pos}, indices=indices)
shader.bind()
if color:
shader.uniform_float('color', color)
batch.draw(shader)
font_info = {
'font_id': 0,
'handler': None,
}
@classmethod
def draw_str(cls):
obj = bpy.context.object
font_id = cls.font_info['font_id']
blf.position(font_id, 200, 80, 0)
blf.size(font_id, 15, 72)
blf.color(font_id, 1, 1, 1, 1)
blf.draw(
font_id,
f'The scaling value of the object {obj.name_full} is not 1,'
f' which will cause the deformation of the simple deformation modifier.'
f' Please apply the scaling before deformation')
if obj.scale == Vector((1, 1, 1)):
Handler.del_handler_text()
@classmethod
def draw_text(cls, x, y, text='Hello Word', font_id=0, size=10, *, color=(0.5, 0.5, 0.5, 1), dpi=72, column=0):
blf.position(font_id, x, y - (size * (column + 1)), 0)
blf.size(font_id, size, dpi)
blf.draw(font_id, text)
blf.color(font_id, *color)
@classmethod
def draw_box(cls, data, mat):
pref = cls._pref()
coords = Utils.matrix_calculation(mat,
cls.data_to_calculation(data))
cls.draw_3d_shader(coords, G_INDICES, pref.bound_box_color)
@classmethod
def data_to_calculation(cls, data):
((min_x, min_y, min_z), (max_x, max_y, max_z)) = data
return (
(max_x, min_y, min_z),
(min_x, min_y, min_z),
(max_x, max_y, min_z),
(min_x, max_y, min_z),
(max_x, min_y, max_z),
(min_x, min_y, max_z),
(max_x, max_y, max_z),
(min_x, max_y, max_z))
@classmethod
def draw_limits_bound_box(cls):
pref = cls._pref()
handler_dit = cls.G_SimpleDeformGizmoHandlerDit
if 'draw_limits_bound_box' in handler_dit:
# draw limits_bound_box
mat, data = handler_dit['draw_limits_bound_box']
bgl.glEnable(bgl.GL_DEPTH_TEST)
coords = Utils.matrix_calculation(mat, cls.data_to_calculation(data))
cls.draw_3d_shader(coords,
G_INDICES,
pref.limits_bound_box_color)
@classmethod
def draw_limits_line(cls):
handler_dit = cls.G_SimpleDeformGizmoHandlerDit
if 'draw_line' in handler_dit:
line_pos, limits_pos, = handler_dit['draw_line']
bgl.glDisable(bgl.GL_DEPTH_TEST)
# draw limits line
cls.draw_3d_shader(limits_pos, ((1, 0),), (1, 1, 0, 0.5))
# draw line
cls.draw_3d_shader(line_pos, ((1, 0),), (1, 1, 0, 0.3))
# draw pos
cls.draw_3d_shader([line_pos[1]], (), (0, 1, 0, 0.5),
shader_name='3D_UNIFORM_COLOR', draw_type='POINTS')
@classmethod
def draw_deform_mesh(cls, ob, context):
pref = cls._pref()
handler_dit = cls.G_SimpleDeformGizmoHandlerDit
active = context.object.modifiers.active
# draw deform mesh
if 'draw' in handler_dit:
pos, indices, mat, mod_data, limits = handler_dit['draw']
if ([getattr(active, i) for i in G_MODIFIERS_PROPERTY] == mod_data) and (
ob.matrix_world == mat) and limits == active.limits[:]:
bgl.glEnable(bgl.GL_DEPTH_TEST)
cls.draw_3d_shader(
pos, indices, pref.deform_wireframe_color)
@classmethod
def draw_scale_text(cls, ob):
if (ob.scale != Vector((1, 1, 1))) and ('handler_text' not in cls.G_SimpleDeformGizmoHandlerDit):
cls.G_SimpleDeformGizmoHandlerDit['handler_text'] = bpy.types.SpaceView3D.draw_handler_add(
cls.draw_str, (), 'WINDOW', 'POST_PIXEL')
@classmethod
def is_draw_box(cls, context):
obj = context.object # 活动物体
matrix = obj.matrix_world # 活动物体矩阵
modifier = context.object.modifiers.active # 活动修改器
pref = cls._pref()
simple_poll = Utils.simple_deform_poll(context)
bend = modifier and (modifier.deform_method == 'BEND')
display_switch_axis = False == pref.display_bend_axis_switch_gizmo
cls.draw_scale_text(obj)
Utils.update_co_data(obj, modifier)
co_data = Utils.generate_co_data()
if simple_poll and ((not bend) or display_switch_axis):
# draw bound box
cls.draw_box(co_data, matrix)
cls.draw_deform_mesh(obj, context)
cls.draw_limits_line()
cls.draw_limits_bound_box()
elif simple_poll and (bend and not display_switch_axis):
bgl.glDisable(bgl.GL_DEPTH_TEST)
cls.draw_box(co_data, matrix)
Utils.new_empty(obj, modifier)
@classmethod
def draw_bound_box(cls):
gpu.state.blend_set('ALPHA')
gpu.state.line_width_set(1)
bgl.glEnable(bgl.GL_BLEND)
bgl.glEnable(bgl.GL_ALPHA)
bgl.glDisable(bgl.GL_DEPTH_TEST)
context = bpy.context
if Utils.simple_deform_poll(context):
cls.is_draw_box(context)
else:
Handler.del_handler()

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import bpy
import math
from bpy_extras import view3d_utils
from mathutils import Vector, Euler
from bpy.types import (
Gizmo,
GizmoGroup,
)
from .draw import Handler
from .utils import Utils, Pref
from .data import Data
class CustomGizmo(Gizmo, Utils, Handler, Data):
"""绘制自定义Gizmo"""
bl_idname = '_Custom_Gizmo'
def setup(self):
self.draw_type = 'None_GizmoGroup_'
if not hasattr(self, 'custom_shape'):
self.custom_shape = {}
for i in self.G_GizmoCustomShapeDict:
self.custom_shape[i] = self.new_custom_shape(
'TRIS', self.G_GizmoCustomShapeDict[i])
self.add_handler()
def draw(self, context):
self.draw_custom_shape(self.custom_shape[self.draw_type])
def draw_select(self, context, select_id):
self.draw_custom_shape(
self.custom_shape[self.draw_type], select_id=select_id)
def invoke(self, context, event):
return {'RUNNING_MODAL'}
def modal(self, context, event, tweak):
self.add_handler()
self.update_bound_box(context.object)
self.update_empty_matrix()
return {'RUNNING_MODAL'}
class ViewSimpleDeformGizmo(Gizmo, Utils, Handler, Data, Pref):
"""显示轴向切换拖动点Gizmo(两个点)
"""
bl_idname = 'ViewSimpleDeformGizmo'
bl_target_properties = (
{'id': 'up_limits', 'type': 'FLOAT', 'array_length': 1},
{'id': 'down_limits', 'type': 'FLOAT', 'array_length': 1},
{'id': 'angle', 'type': 'FLOAT', 'array_length': 1},
)
__slots__ = (
'mod',
'up',
'down',
'up_',
'down_',
'draw_type',
'mouse_dpi',
'ctrl_mode',
'empty_object',
'init_mouse_y',
'init_mouse_x',
'custom_shape',
'int_value_angle',
'value_deform_axis',
'int_value_up_limits',
'int_value_down_limits',
'rotate_follow_modifier',
)
def update_gizmo_rotate(self, axis, mod):
if self.rotate_follow_modifier:
rot = Euler()
if axis == 'X' and (not self.is_positive(mod.angle)):
rot.z = math.pi
elif axis == 'Y':
if self.is_positive(mod.angle):
rot.z = -(math.pi / 2)
else:
rot.z = math.pi / 2
elif axis == 'Z':
if self.is_positive(mod.angle):
rot.x = rot.z = rot.y = math.pi / 2
else:
rot.z = rot.y = math.pi / 2
rot.x = -(math.pi / 2)
rot = rot.to_matrix()
self.matrix_basis = self.matrix_basis @ rot.to_4x4()
def update_draw_limits_bound_box(self, data, mod, axis, mat, up_, down_):
top, bottom, left, right, front, back = data
if mod.origin:
vector_axis = self.get_vector_axis(mod)
origin_mat = mod.origin.matrix_world.to_3x3()
axis_ = origin_mat @ vector_axis
point_lit = [[top, bottom], [left, right], [front, back]]
for f in range(point_lit.__len__()):
i = point_lit[f][0]
j = point_lit[f][1]
angle = self.point_to_angle(i, j, f, axis_)
if abs(angle - 180) < 0.00001:
point_lit[f][1], point_lit[f][0] = up_, down_
elif abs(angle) < 0.00001:
point_lit[f][0], point_lit[f][1] = up_, down_
[[top, bottom], [left, right], [front, back]] = point_lit
else:
top, bottom, left, right, front, back = self.get_up_down_return_list(
mod, axis, up_, down_, data)
data = top, bottom, left, right, front, back
(top, bottom, left, right, front,
back) = self.matrix_calculation(mat.inverted(), data)
self.G_SimpleDeformGizmoHandlerDit['draw_limits_bound_box'] = (
mat, ((right[0], back[1], top[2]), (left[0], front[1], bottom[2],)))
def update_matrix_basis_translation(self, co, mat, up_, down_):
if 'angle' == self.ctrl_mode:
self.matrix_basis.translation = mat @ Vector((co[1]))
elif 'up_limits' == self.ctrl_mode:
self.matrix_basis.translation = up_
elif 'down_limits' == self.ctrl_mode:
self.matrix_basis.translation = down_
def update_gizmo_matrix(self, context):
ob = context.object
mat = ob.matrix_world
mod = context.object.modifiers.active
axis = mod.deform_axis
if mod.origin:
self.matrix_basis = mod.origin.matrix_world.normalized()
else:
self.matrix_basis = ob.matrix_world.normalized()
co = self.generate_co_data()
self.update_gizmo_rotate(axis, mod)
# calculation limits position
top, bottom, left, right, front, back = self.each_face_pos(mat)
(up, down), (up_, down_) = self.get_limits_pos(
mod, (top, bottom, left, right, front, back))
self.update_matrix_basis_translation(co, mat, up_, down_)
self.up = up
self.down = down
self.up_ = up_
self.down_ = down_
self.G_SimpleDeformGizmoHandlerDit['draw_line'] = (
(up, down), (up_, down_))
data = top, bottom, left, right, front, back
self.update_draw_limits_bound_box(data, mod, axis, mat, up_, down_)
def setup(self):
self.generate_co_data()
self.draw_type = 'None_GizmoGroup_'
self.ctrl_mode = 'angle' # up_limits , down_limits
self.mouse_dpi = 10
self.rotate_follow_modifier = True
if not hasattr(self, 'custom_shape'):
self.custom_shape = {}
for i in self.G_GizmoCustomShapeDict:
item = self.G_GizmoCustomShapeDict[i]
self.custom_shape[i] = self.new_custom_shape('TRIS', item)
self.add_handler()
def draw(self, context):
self.add_handler()
self.update_gizmo_matrix(context)
self.draw_custom_shape(self.custom_shape[self.draw_type])
def draw_select(self, context, select_id):
self.update_gizmo_matrix(context)
self.draw_custom_shape(
self.custom_shape[self.draw_type], select_id=select_id)
def invoke(self, context, event):
self.init_mouse_y = event.mouse_y
self.init_mouse_x = event.mouse_x
mod = context.object.modifiers.active
limits = mod.limits
up_limits = limits[1]
down_limits = limits[0]
if 'angle' == self.ctrl_mode:
self.int_value_angle = self.target_get_value('angle')
elif 'up_limits' == self.ctrl_mode:
self.int_value_up_limits = up_limits
self.target_set_value('up_limits', self.int_value_up_limits)
elif 'down_limits' == self.ctrl_mode:
self.int_value_down_limits = down_limits
self.target_set_value('down_limits', self.int_value_down_limits)
return {'RUNNING_MODAL'}
def exit(self, context, cancel):
context.area.header_text_set(None)
if cancel:
if 'angle' == self.ctrl_mode:
self.target_set_value('angle', self.int_value_angle)
elif 'deform_axis' == self.ctrl_mode:
self.target_set_value('deform_axis', self.value_deform_axis)
elif 'up_limits' == self.ctrl_mode:
self.target_set_value('up_limits', self.int_value_up_limits)
elif 'down_limits' == self.ctrl_mode:
self.target_set_value(
'down_limits', self.int_value_down_limits)
def delta_update(self, context, event, delta):
if ('draw_line' in self.G_SimpleDeformGizmoHandlerDit) and (self.ctrl_mode in ('up_limits', 'down_limits')):
x, y = view3d_utils.location_3d_to_region_2d(
context.region, context.space_data.region_3d, self.up)
x2, y2 = view3d_utils.location_3d_to_region_2d(
context.region, context.space_data.region_3d, self.down)
mouse_line_distance = math.sqrt(((event.mouse_region_x - x2) ** 2) +
((event.mouse_region_y - y2) ** 2))
straight_line_distance = math.sqrt(((x2 - x) ** 2) +
((y2 - y) ** 2))
delta = mouse_line_distance / \
straight_line_distance + 0
v_up = Vector((x, y))
v_down = Vector((x2, y2))
limits_angle = v_up - v_down
mouse_v = Vector((event.mouse_region_x, event.mouse_region_y))
mouse_angle = mouse_v - v_down
angle_ = mouse_angle.angle(limits_angle)
if angle_ > (math.pi / 2):
delta = 0
return delta
def set_down_value(self, data, mu):
up_limits, down_limits, delta, middle, min_value, max_value, limit_scope, difference_value, event, origin_mode = data
value = self.value_limit(delta, max_value=mu -
limit_scope if middle else max_value)
self.target_set_value('down_limits', value)
if event.ctrl:
self.target_set_value(
'up_limits', value + difference_value)
elif middle:
if origin_mode == 'LIMITS_MIDDLE':
self.target_set_value('up_limits', mu - (value - mu))
elif origin_mode == 'MIDDLE':
self.target_set_value('up_limits', 1 - value)
else:
self.target_set_value('up_limits', up_limits)
else:
self.target_set_value('up_limits', up_limits)
def set_up_value(self, data, mu):
up_limits, down_limits, delta, middle, min_value, max_value, limit_scope, difference_value, event, origin_mode = data
value = self.value_limit(delta, min_value=mu +
limit_scope if middle else min_value)
self.target_set_value('up_limits', value)
if event.ctrl:
self.target_set_value(
'down_limits', value - difference_value)
elif middle:
if origin_mode == 'LIMITS_MIDDLE':
self.target_set_value('down_limits', mu - (value - mu))
elif origin_mode == 'MIDDLE':
self.target_set_value('down_limits', 1 - value)
else:
self.target_set_value('down_limits', down_limits)
else:
self.target_set_value('down_limits', down_limits)
def set_prop_value(self, data):
up_limits, down_limits, delta, middle, min_value, max_value, limit_scope, difference_value, event, origin_mode = data
mu = (up_limits + down_limits) / 2
if 'angle' == self.ctrl_mode:
value = self.int_value_angle - delta
self.target_set_value('angle', value)
elif 'up_limits' == self.ctrl_mode:
self.set_up_value(data, mu)
elif 'down_limits' == self.ctrl_mode:
self.set_down_value(data, mu)
def update_header_text(self, context, mod, origin, up_limits, down_limits):
t = lambda a: bpy.app.translations.pgettext(a)
if (mod.deform_method in ('TWIST', 'BEND')) and (self.ctrl_mode in ('angle',)):
text = t("Angle") + ':{}'.format(math.degrees(mod.angle))
elif 'up_limits' == self.ctrl_mode:
text = t("Upper limit") + ':{}'.format(up_limits)
elif 'down_limits' == self.ctrl_mode:
text = t("Down limit") + ':{}'.format(down_limits)
else:
text = t("Coefficient") + ':{}'.format(mod.factor)
text += ' '
text += t(origin.bl_rna.properties[
'origin_mode'].enum_items[origin.origin_mode].name)
context.area.header_text_set(text)
def event_ops(self, event, ob, origin):
"""通过输入键位来更改属性"""
# event ctrl
data_path = ('object.SimpleDeformGizmo_PropertyGroup.origin_mode',
'object.modifiers.active.origin.SimpleDeformGizmo_PropertyGroup.origin_mode')
if event.type in ('WHEELUPMOUSE', 'WHEELDOWNMOUSE'):
reverse = (event.type == 'WHEELUPMOUSE')
for path in data_path:
bpy.ops.wm.context_cycle_enum(
data_path=path, reverse=reverse, wrap=True)
elif event.type in ('X', 'Y', 'Z'):
ob.modifiers.active.deform_axis = event.type
elif event.type == 'A':
self.pref.display_bend_axis_switch_gizmo = True
return {'FINISHED'}
self.add_handler()
return {'RUNNING_MODAL'}
def modal(self, context, event, tweak):
self.update_bound_box(context.object)
delta = (self.init_mouse_x - event.mouse_x) / self.mouse_dpi
ob = context.object
mod = ob.modifiers.active
limits = mod.limits
up_limits = limits[1]
down_limits = limits[0]
origin = self.get_origin_property_group(mod, ob)
origin_mode = origin.origin_mode
middle = origin_mode in ('LIMITS_MIDDLE', 'MIDDLE')
limit_scope = self.pref.modifiers_limits_tolerance
max_value = up_limits - limit_scope
min_value = down_limits + limit_scope
difference_value = up_limits - down_limits
if 'SNAP' in tweak:
delta = round(delta)
if 'PRECISE' in tweak:
delta /= self.mouse_dpi
delta = self.delta_update(context, event, delta)
if origin_mode != 'NOT' and ('draw_line' in self.G_SimpleDeformGizmoHandlerDit):
self.empty_object, _ = self.new_empty(ob, mod)
self.G_SimpleDeformGizmoHandlerDit['empty_object'] = self.empty_object
data = up_limits, down_limits, delta, middle, min_value, max_value, limit_scope, difference_value, event, origin_mode
self.set_prop_value(data)
self.update_gizmo_matrix(context)
self.update_empty_matrix()
self.update_bound_box(context.object)
self.update_header_text(context, mod, origin, up_limits, down_limits)
self.add_handler()
return self.event_ops(event, ob, origin)
class SimpleDeformGizmoGroup(GizmoGroup, Utils, Handler, Pref, Data):
"""显示Gizmo
"""
bl_idname = 'OBJECT_GGT_SimpleDeformGizmoGroup'
bl_label = 'SimpleDeformGizmoGroup'
bl_space_type = 'VIEW_3D'
bl_region_type = 'WINDOW'
bl_options = {'3D', 'PERSISTENT', }
@classmethod
def poll(cls, context):
pol = cls.simple_deform_poll(context)
pref = cls._pref()
deform_method = (
pol and (context.object.modifiers.active.deform_method != 'BEND'))
display_gizmo = pref.display_bend_axis_switch_gizmo
switch = (not display_gizmo)
return pol and (deform_method or switch)
def generate_gizmo_mode(self, gizmo_data):
"""生成gizmo的上限下限及角度设置
Args:
gizmo_data (_type_): _description_
"""
for i, j, k in gizmo_data:
setattr(self, i, self.gizmos.new(j))
gizmo = getattr(self, i)
for f in k:
if f == 'target_set_operator':
gizmo.target_set_operator(k[f])
elif f == 'target_set_prop':
gizmo.target_set_prop(*k[f])
else:
setattr(gizmo, f, k[f])
def setup(self, context):
sd_name = ViewSimpleDeformGizmo.bl_idname
add_data = (('up_limits',
sd_name,
{'ctrl_mode': 'up_limits',
'draw_type': 'Sphere_GizmoGroup_',
'mouse_dpi': 1000,
'color': (1.0, 0, 0),
'alpha': 0.5,
'color_highlight': (1.0, 1.0, 1.0),
'alpha_highlight': 0.3,
'use_draw_modal': True,
'scale_basis': 0.1,
'use_draw_value': True, }),
('down_limits',
sd_name,
{'ctrl_mode': 'down_limits',
'draw_type': 'Sphere_GizmoGroup_',
'mouse_dpi': 1000,
'color': (0, 1.0, 0),
'alpha': 0.5,
'color_highlight': (1.0, 1.0, 1.0),
'alpha_highlight': 0.3,
'use_draw_modal': True,
'scale_basis': 0.1,
'use_draw_value': True, }),
('angle',
sd_name,
{'ctrl_mode': 'angle',
'draw_type': 'SimpleDeform_GizmoGroup_',
'color': (1.0, 0.5, 1.0),
'alpha': 0.3,
'color_highlight': (1.0, 1.0, 1.0),
'alpha_highlight': 0.3,
'use_draw_modal': True,
'scale_basis': 0.1,
'use_draw_value': True,
'mouse_dpi': 100,
}),
)
self.generate_gizmo_mode(add_data)
data_path = 'object.modifiers.active.deform_axis'
set_enum = 'wm.context_set_enum'
for axis in ('X', 'Y', 'Z'):
# show toggle axis button
gizmo = self.gizmos.new('GIZMO_GT_button_2d')
gizmo.icon = f'EVENT_{axis.upper()}'
gizmo.draw_options = {'BACKDROP', 'HELPLINE'}
ops = gizmo.target_set_operator(set_enum)
ops.data_path = data_path
ops.value = axis
gizmo.color = (0, 0, 0)
gizmo.alpha = 0.3
gizmo.color_highlight = 1.0, 1.0, 1.0
gizmo.alpha_highlight = 0.3
gizmo.use_draw_modal = True
gizmo.use_draw_value = True
gizmo.scale_basis = 0.1
setattr(self, f'deform_axis_{axis.lower()}', gizmo)
self.add_handler()
def refresh(self, context):
pro = context.object.SimpleDeformGizmo_PropertyGroup
self.angle.target_set_prop('angle',
context.object.modifiers.active,
'angle')
self.down_limits.target_set_prop('down_limits',
pro,
'down_limits')
self.down_limits.target_set_prop('up_limits',
pro,
'up_limits')
self.up_limits.target_set_prop('down_limits',
pro,
'down_limits')
self.up_limits.target_set_prop('up_limits',
pro,
'up_limits')
self.add_handler()
def draw_prepare(self, context):
ob = context.object
mat = ob.matrix_world
if 'co' in self.G_SimpleDeformGizmoHandlerDit:
def _mat(f):
co = self.G_SimpleDeformGizmoHandlerDit['co'][0]
co = (co[0] + (max(ob.dimensions) * f), co[1],
co[2] - (min(ob.dimensions) * 0.3))
return mat @ Vector(co)
self.deform_axis_x.matrix_basis.translation = _mat(0)
self.deform_axis_y.matrix_basis.translation = _mat(0.3)
self.deform_axis_z.matrix_basis.translation = _mat(0.6)
self.add_handler()
def invoke_prepare(self, context, gizmo):
self.add_handler()
class SimpleDeformGizmoGroupDisplayBendAxiSwitchGizmo(GizmoGroup, Utils, Handler, Pref):
"""绘制切换变型轴的
变换方向
"""
bl_idname = 'OBJECT_GGT_SimpleDeformGizmoGroup_display_bend_axis_switch_gizmo'
bl_label = 'SimpleDeformGizmoGroup_display_bend_axis_switch_gizmo'
bl_space_type = 'VIEW_3D'
bl_region_type = 'WINDOW'
bl_options = {
'3D',
'PERSISTENT',
}
@classmethod
def poll(cls, context):
pref = cls._pref()
simple = cls.simple_deform_poll(context)
bend = simple and (
context.object.modifiers.active.deform_method == 'BEND')
switch_axis = (pref.display_bend_axis_switch_gizmo == True)
return switch_axis and bend
def setup(self, context):
_draw_type = 'SimpleDeform_Bend_Direction_'
_color_a = 1, 0, 0
_color_b = 0, 1, 0
self.add_handler()
for na, axis, rot, positive in (
('top_a', 'X', (math.radians(90), 0, math.radians(90)), True),
('top_b', 'X', (math.radians(90), 0, 0), True),
('bottom_a', 'X', (math.radians(90), 0, math.radians(90)), False),
('bottom_b', 'X', (math.radians(90), 0, 0), False),
('left_a', 'Y', (math.radians(90), 0, 0), False),
('left_b', 'Y', (0, 0, 0), False),
('right_a', 'Y', (math.radians(90), 0, 0), True),
('right_b', 'Y', (0, 0, 0), True),
('front_a', 'Z', (0, 0, 0), False),
('front_b', 'X', (0, 0, 0), False),
('back_a', 'Z', (0, 0, 0), True),
('back_b', 'X', (0, 0, 0), True),):
_a = (na.split('_')[1] == 'a')
setattr(self, na, self.gizmos.new(CustomGizmo.bl_idname))
gizmo = getattr(self, na)
gizmo.mode = na
gizmo.draw_type = _draw_type
gizmo.color = _color_a if _a else _color_b
gizmo.alpha = 0.3
gizmo.color_highlight = 1.0, 1.0, 1.0
gizmo.alpha_highlight = 1
gizmo.use_draw_modal = True
gizmo.scale_basis = 0.2
gizmo.use_draw_value = True
ops = gizmo.target_set_operator(
'simple_deform_gizmo.deform_axis')
ops.Deform_Axis = axis
ops.X_Value = rot[0]
ops.Y_Value = rot[1]
ops.Z_Value = rot[2]
ops.Is_Positive = positive
def draw_prepare(self, context):
ob = context.object
mat = ob.matrix_world
top, bottom, left, right, front, back = self.each_face_pos(mat)
rad = math.radians
for_list = (
('top_a', top, (0, 0, 0),),
('top_b', top, (0, 0, rad(90)),),
('bottom_a', bottom, (0, rad(180), 0),),
('bottom_b', bottom, (0, rad(180), rad(90)),),
('left_a', left, (rad(-90), 0, rad(90)),),
('left_b', left, (0, rad(-90), 0),),
('right_a', right, (rad(90), 0, rad(90)),),
('right_b', right, (0, rad(90), 0),),
('front_a', front, (rad(90), 0, 0),),
('front_b', front, (rad(90), rad(90), 0),),
('back_a', back, (rad(-90), 0, 0),),
('back_b', back, (rad(-90), rad(-90), 0),),
)
for i, j, w, in for_list:
gizmo = getattr(self, i, False)
rot = Euler(w, 'XYZ').to_matrix().to_4x4()
gizmo.matrix_basis = mat.to_euler().to_matrix().to_4x4() @ rot
gizmo.matrix_basis.translation = Vector(j)
class_list = (
CustomGizmo,
ViewSimpleDeformGizmo,
SimpleDeformGizmoGroup,
SimpleDeformGizmoGroupDisplayBendAxiSwitchGizmo,
)
register_class, unregister_class = bpy.utils.register_classes_factory(class_list)
def register():
register_class()
def unregister():
Handler.del_handler()
unregister_class()

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import bpy
from bpy.types import Operator
from bpy.props import FloatProperty, StringProperty, BoolProperty
from .utils import Pref
class DeformAxisOperator(Operator,Pref):
bl_idname = 'simple_deform_gizmo.deform_axis'
bl_label = 'deform_axis'
bl_description = 'deform_axis operator'
bl_options = {'REGISTER'}
Deform_Axis: StringProperty(default='X', options={'SKIP_SAVE'})
X_Value: FloatProperty(default=-0, options={'SKIP_SAVE'})
Y_Value: FloatProperty(default=-0, options={'SKIP_SAVE'})
Z_Value: FloatProperty(default=-0, options={'SKIP_SAVE'})
Is_Positive: BoolProperty(default=True, options={'SKIP_SAVE'})
def execute(self, context):
return {'RUNNING_MODAL'}
def invoke(self, context, event):
context.window_manager.modal_handler_add(self)
return {'RUNNING_MODAL'}
def modal(self, context, event):
from .gizmo import Utils
mod = context.object.modifiers.active
mod.deform_axis = self.Deform_Axis
empty, con_limit_name = Utils.new_empty(context.object, mod)
is_positive = Utils.is_positive(mod.angle)
for limit, value in (('max_x', self.X_Value),
('min_x', self.X_Value),
('max_y', self.Y_Value),
('min_y', self.Y_Value),
('max_z', self.Z_Value),
('min_z', self.Z_Value),
):
setattr(empty.constraints[con_limit_name], limit, value)
if ((not is_positive) and self.Is_Positive) or (is_positive and (not self.Is_Positive)):
mod.angle = mod.angle * -1
if not event.ctrl:
self.pref.display_bend_axis_switch_gizmo = False
Utils.update_bound_box(context.object)
return {'FINISHED'}
class_list = (
DeformAxisOperator,
)
register_class, unregister_class = bpy.utils.register_classes_factory(class_list)
def register():
register_class()
def unregister():
unregister_class()

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import os
import bpy
from bpy.props import (FloatProperty,
PointerProperty,
FloatVectorProperty,
EnumProperty,
BoolProperty)
from bpy.types import (
AddonPreferences,
PropertyGroup,
)
from .data import G_ADDON_NAME
from .utils import Pref, Utils
class SimpleDeformGizmoAddonPreferences(AddonPreferences, Pref):
bl_idname = G_ADDON_NAME
deform_wireframe_color: FloatVectorProperty(
name='Deform Wireframe',
description='Draw Deform Wireframe Color',
default=(1, 1, 1, 0.3),
soft_max=1,
soft_min=0,
size=4, subtype='COLOR')
bound_box_color: FloatVectorProperty(
name='Bound Box',
description='Draw Bound Box Color',
default=(1, 0, 0, 0.1),
soft_max=1,
soft_min=0,
size=4,
subtype='COLOR')
limits_bound_box_color: FloatVectorProperty(
name='Upper and lower limit Bound Box Color',
description='Draw Upper and lower limit Bound Box Color',
default=(0.3, 1, 0.2, 0.5),
soft_max=1,
soft_min=0,
size=4,
subtype='COLOR')
modifiers_limits_tolerance: FloatProperty(
name='Upper and lower limit tolerance',
description='Minimum value between upper and lower limits',
default=0.05,
max=1,
min=0.0001
)
display_bend_axis_switch_gizmo: BoolProperty(
name='Show Toggle Axis Gizmo',
default=False,
options={'SKIP_SAVE'})
def draw(self, context):
layout = self.layout
if __name__ is None:
from bpy.types import Panel
layout = Panel.layout
layout.prop(self, 'deform_wireframe_color')
layout.prop(self, 'bound_box_color')
layout.prop(self, 'limits_bound_box_color')
layout.prop(self, 'modifiers_limits_tolerance')
layout.prop(self, 'display_bend_axis_switch_gizmo')
def draw_header_tool_settings(self, context):
layout = self.layout
if Utils.simple_deform_poll(context):
layout.separator(factor=5)
active_mod = context.object.modifiers.active
prop = context.object.SimpleDeformGizmo_PropertyGroup
pref = Pref._pref()
if active_mod.origin:
layout.prop(active_mod.origin.SimpleDeformGizmo_PropertyGroup,
'origin_mode',
text='')
else:
layout.prop(prop,
'origin_mode',
text='')
layout.prop(pref,
'modifiers_limits_tolerance',
text='')
if active_mod.deform_method == 'BEND':
layout.prop(pref,
'display_bend_axis_switch_gizmo',
toggle=1)
layout.separator(factor=0.5)
layout.prop(active_mod,
'deform_method',
expand=True)
layout.prop(active_mod,
'deform_axis',
expand=True)
layout.prop(active_mod,
'angle')
layout.prop(active_mod,
'factor')
class SimpleDeformGizmoObjectPropertyGroup(PropertyGroup):
def _limits_up(self, context):
mod = context.object.modifiers
if mod and (mod.active.type == 'SIMPLE_DEFORM'):
mod = mod.active
mod.limits[1] = self.up_limits
up_limits: FloatProperty(name='up',
description='UP Limits(Red)',
default=1,
update=_limits_up,
max=1,
min=0)
def _limits_down(self, context):
mod = context.object.modifiers
if mod and (mod.active.type == 'SIMPLE_DEFORM'):
mod = mod.active
mod.limits[0] = self.down_limits
down_limits: FloatProperty(name='down',
description='Lower limit(Green)',
default=0,
update=_limits_down,
max=1,
min=0)
origin_mode_items = (
('UP_LIMITS',
'Follow Upper Limit(Red)',
'Add an empty object origin as the rotation axis (if there is an origin, do not add it), and set the origin '
'position as the upper limit during operation'),
('DOWN_LIMITS',
'Follow Lower Limit(Green)',
'Add an empty object origin as the rotation axis (if there is an origin, do not add it), and set the origin '
'position as the lower limit during operation'),
('LIMITS_MIDDLE',
'Middle',
'Add an empty object origin as the rotation axis (if there is an origin, do not add it), and set the '
'origin position between the upper and lower limits during operation'),
('MIDDLE',
'Bound Middle',
'Add an empty object origin as the rotation axis (if there is an origin, do not add it), and set the origin '
'position as the position between the bounding boxes during operation'),
('NOT', 'No origin operation', ''),
)
origin_mode: EnumProperty(name='Origin control mode',
default='NOT',
items=origin_mode_items)
class_list = (
SimpleDeformGizmoAddonPreferences,
SimpleDeformGizmoObjectPropertyGroup,
)
register_class, unregister_class = bpy.utils.register_classes_factory(class_list)
def register():
register_class()
Pref._pref().display_bend_axis_switch_gizmo = False
bpy.types.Object.SimpleDeformGizmo_PropertyGroup = PointerProperty(
type=SimpleDeformGizmoObjectPropertyGroup,
name='SimpleDeformGizmo_PropertyGroup')
bpy.types.VIEW3D_MT_editor_menus.append(
SimpleDeformGizmoAddonPreferences.draw_header_tool_settings)
def unregister():
unregister_class()
bpy.types.VIEW3D_MT_editor_menus.remove(
SimpleDeformGizmoAddonPreferences.draw_header_tool_settings)

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import bpy
from bpy.app import timers
def remove_not_use_empty(remove_name: str = "ViewSimpleDeformGizmo__Empty_"):
"""循环场景内的所有物体,找出没用的空物体并删掉
"""
context = bpy.context
for obj in context.scene.objects:
is_empty = obj.type == "EMPTY"
not_parent = not obj.parent
name_ok = obj.name.count(remove_name)
if name_ok and not_parent and is_empty:
bpy.data.objects.remove(obj) # remove object
def update_timers() -> float:
remove_not_use_empty()
return 3
def register():
timers.register(update_timers, persistent=True)
def unregister():
if timers.is_registered(update_timers):
timers.unregister(update_timers)

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import bpy
def origin_text(a, b):
return "Add an empty object origin as the rotation axis (if there is an origin, " + a + \
"), and set the origin position " + b + " during operation"
translations_dict = {
"zh_CN": {
("上下文", "原文"): "翻译文字",
("*", "Show Toggle Axis Gizmo"): "显示切换轴向Gizmo",
("*", "Follow Upper Limit(Red)"): "跟随上限(红色)",
("*", "Follow Lower Limit(Green)"): "跟随下限(绿色)",
("*", "Lower limit(Green)"): "下限(绿色)",
("*", "UP Limits(Red)"): "上限(红色)",
("*", "Minimum value between upper and lower limits"): "上限与下限之间的最小值",
("*", "Upper and lower limit tolerance"): "上下限容差",
("*", "Draw Upper and lower limit Bound Box Color"): "绘制网格上限下限边界线框的颜色",
("*", "Upper and lower limit Bound Box Color"): "上限下限边界框颜色",
("*", "Draw Bound Box Color"): "绘制网格边界框的颜色",
("*", "Bound Box"): "边界框颜色",
("*", "Draw Deform Wireframe Color"): "绘制网格形变形状线框的颜色",
("*", "Deform Wireframe"): "形变线框颜色",
("*", "Simple Deform visualization adjustment tool"): "简易形变可视化工具",
("*", "Select an object and the active modifier is Simple Deform"): "选择物体并且活动修改器为简易形变",
("*", "Bound Middle"): "边界框中心",
("*", origin_text("do not add it", "as the lower limit")):
"添加一个空物体原点作为旋转轴(如果已有原点则不添加),并在操作时设置原点位置为下限位置",
("*", origin_text("do not add it", "as the upper limit")):
"添加一个空物体原点作为旋转轴(如果已有原点则不添加),并在操作时设置原点位置为上限位置",
("*", origin_text("it will not be added", "between the upper and lower limits")):
"添加一个空物体原点作为旋转轴(如果已有原点则不添加),并在操作时设置原点位置为上下限之间的位置",
("*", origin_text("do not add it", "as the position between the bounding boxes")):
"添加一个空物体原点作为旋转轴(如果已有原点则不添加),并在操作时设置原点位置为边界框之间的位置",
("*", "No origin operation"): "不进行原点操作",
("*", "Origin control mode"): "原点控制模式",
("*", "Down limit"): "下限",
("*", "Coefficient"): "系数",
("*", "Upper limit"): "上限",
("*", "3D View -> Select an object and the active modifier is simple deformation"): "3D视图 -> 选择一个物体,"
"并且活动修改器为简易形修改器",
("*", "3D View: SimpleDeformHelper"): "3D 视图: SimpleDeformHelper 简易形变助手",
("*", ""): "",
}
}
def register():
bpy.app.translations.register(__name__, translations_dict)
def unregister():
bpy.app.translations.unregister(__name__)

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import math
import uuid
import bpy
import numpy as np
from bpy.types import AddonPreferences
from mathutils import Vector, Matrix
from .data import G_ADDON_NAME, G_NAME, G_INDICES, G_MODIFIERS_PROPERTY, G_CON_LIMIT_NAME, Data
class Pref:
@staticmethod
def _pref() -> "AddonPreferences":
return bpy.context.preferences.addons[G_ADDON_NAME].preferences
@property
def pref(self=None) -> 'AddonPreferences':
"""
:return: AddonPreferences
"""
return Pref._pref()
class Utils(Data):
@classmethod
def set_reduce(cls, list_a, list_b, operation_type='-') -> list:
"""
:param list_a: 列表a
:type list_a: list or set
:param list_b: 列表b
:type list_b:list or set
:param operation_type :运算方法Enumerator in ['+','-','*','/'].
:type operation_type :str
:return list: 反回运算后的列表
"""
if operation_type == '-':
return [list_a[i] - list_b[i] for i in range(0, len(list_a))]
elif operation_type == '+':
return [list_a[i] + list_b[i] for i in range(0, len(list_a))]
elif operation_type == '/':
return [list_a[i] / list_b[i] for i in range(0, len(list_a))]
elif operation_type == '*':
return [list_a[i] * list_b[i] for i in range(0, len(list_a))]
@classmethod
def value_limit(cls, value, max_value=1, min_value=0) -> float:
"""
:param value: 输入值
:type value: float
:param max_value: 允许的最大值
:type max_value: float
:param min_value: 允许的最小值
:type min_value: float
:return float: 反回小于最大值及大于最小值的浮点数
"""
if value > max_value:
return max_value
elif value < min_value:
return min_value
else:
return value
@classmethod
def is_positive(cls, number: 'int') -> bool:
"""return bool value
if number is positive return True else return False
"""
return number == abs(number)
@classmethod
def get_depsgraph(cls, obj: 'bpy.context.object'):
"""
:param obj: 要被评估的物体
:type obj: bpy.types.Object
:return bpy.types.Object: 反回评估后的物体,计算应用修改器和实例化的数据
如果未输入物休将会评估活动物体
"""
context = bpy.context
if obj is None:
obj = context.object
depsgraph = context.evaluated_depsgraph_get()
return obj.evaluated_get(depsgraph)
@classmethod
def link_active_collection(cls,
obj: 'bpy.context.object') -> \
'bpy.context.view_layer.active_layer_collection.collection.objects':
context = bpy.context
if obj.name not in context.view_layer.active_layer_collection.collection.objects:
context.view_layer.active_layer_collection.collection.objects.link(
obj)
return context.view_layer.active_layer_collection.collection.objects
@classmethod
def properties_is_modifier(cls) -> bool:
"""
反回活动窗口内是否有修改器属性面板被打开,如果打开则反回True else False
"""
for area in bpy.context.screen.areas:
if area.type == 'PROPERTIES':
for space in area.spaces:
if space.type == 'PROPERTIES' and space.context == 'MODIFIER':
return True
return False
@classmethod
def simple_deform_poll(cls, context: 'bpy.context') -> bool:
"""
:param context:输入一个上下文
:type context:bpy.context
:return bool:反回布尔值,如果活动物体为网格或晶格并且活动修改器为简易形变反回 True else False
"""
obj = context.object
mesh = (obj.type in ('MESH', 'LATTICE')) if obj else False
modifiers_type = (obj.modifiers.active.type ==
'SIMPLE_DEFORM') if (obj and (obj.modifiers.active is not None)) else False
obj_ok = context and obj and modifiers_type and mesh
module_ok = (context.mode == 'OBJECT')
view = context.space_data
show_gizmo = view.show_gizmo
return obj_ok and module_ok and show_gizmo
@classmethod
def bound_box_to_list(cls, obj: 'bpy.context.object') -> tuple:
"""
:param obj:输入一个物体,反回物体的边界框列表
:type obj:bpy.types.Object
:return tuple:
"""
return tuple(i[:] for i in obj.bound_box)
@classmethod
def get_origin_bounds(cls, obj: 'bpy.context.object') -> list:
modifiers_list = {}
for mod in obj.modifiers:
if (mod == obj.modifiers.active) or (modifiers_list != {}):
modifiers_list[mod] = (mod.show_render, mod.show_viewport)
mod.show_viewport = False
mod.show_render = False
matrix_obj = obj.matrix_world.copy()
obj.matrix_world.zero()
obj.scale = (1, 1, 1)
bound = cls.bound_box_to_list(obj)
obj.matrix_world = matrix_obj
for mod in modifiers_list:
show_render, show_viewport = modifiers_list[mod]
mod.show_render = show_render
mod.show_viewport = show_viewport
return list(bound)
@classmethod
def get_mesh_max_min_co(cls, obj: 'bpy.context.object') -> tuple:
if obj.type == 'MESH':
ver_len = obj.data.vertices.__len__()
list_vertices = np.zeros(ver_len * 3, dtype=np.float32)
obj.data.vertices.foreach_get('co', list_vertices)
list_vertices = list_vertices.reshape(ver_len, 3)
elif obj.type == 'LATTICE':
ver_len = obj.data.points.__len__()
list_vertices = np.zeros(ver_len * 3, dtype=np.float32)
obj.data.points.foreach_get('co', list_vertices)
list_vertices = list_vertices.reshape(ver_len, 3)
return tuple(list_vertices.min(axis=0)), tuple(list_vertices.max(axis=0))
@classmethod
def matrix_calculation(cls, mat: 'Matrix', calculation_list: 'list') -> list:
return [mat @ Vector(i) for i in calculation_list]
@classmethod
def get_origin_property_group(cls, mod, ob):
if mod.origin:
return mod.origin.SimpleDeformGizmo_PropertyGroup
else:
return ob.SimpleDeformGizmo_PropertyGroup
@classmethod
def set_empty_obj_matrix(cls, origin_mode, empty_object, up_, down_, up, down):
tow = (2, 2, 2)
if origin_mode == 'UP_LIMITS':
empty_object.matrix_world.translation = Vector(up_)
elif origin_mode == 'DOWN_LIMITS':
empty_object.matrix_world.translation = Vector(
down_)
elif origin_mode == 'LIMITS_MIDDLE':
empty_object.matrix_world.translation = cls.set_reduce(
cls.set_reduce(up_, down_, '+'), tow, '/')
elif origin_mode == 'MIDDLE':
empty_object.matrix_world.translation = cls.set_reduce(
cls.set_reduce(up, down, '+'), tow, '/')
@classmethod
def get_vector_axis(cls, mod):
axis = mod.deform_axis
if 'BEND' == mod.deform_method:
vector_axis = Vector((0, 0, 1)) if axis in (
'Y', 'X') else Vector((1, 0, 0))
else:
vector = (Vector((1, 0, 0)) if (
axis == 'X') else Vector((0, 1, 0)))
vector_axis = Vector((0, 0, 1)) if (
axis == 'Z') else vector
return vector_axis
@classmethod
def point_to_angle(cls, i, j, f, axis_):
if i == j:
if f == 0:
i[0] += 0.1
j[0] -= 0.1
elif f == 1:
i[1] -= 0.1
j[1] += 0.1
else:
i[2] -= 0.1
j[2] += 0.1
vector_value = i - j
angle = (180 * vector_value.angle(axis_) / math.pi)
return angle
@classmethod
def get_up_down(cls, mod, axis, top, bottom, left, right, front, back):
if 'BEND' == mod.deform_method:
if axis in ('X', 'Y'):
return top, bottom
elif axis == 'Z':
return right, left
else:
if axis == 'X':
return right, left
elif axis == 'Y':
return back, front
elif axis == 'Z':
return top, bottom
@classmethod
def get_limits_pos(cls, mod, data):
top, bottom, left, right, front, back = data
up_limits = mod.limits[1]
down_limits = mod.limits[0]
axis = mod.deform_axis
if mod.origin:
vector_axis = cls.get_vector_axis(mod)
origin_mat = mod.origin.matrix_world.to_3x3()
axis_ = origin_mat @ vector_axis
point_lit = [[top, bottom], [left, right], [front, back]]
for f in range(point_lit.__len__()):
i = point_lit[f][0]
j = point_lit[f][1]
angle = cls.point_to_angle(i, j, f, axis_)
if abs(angle - 180) < 0.00001:
up, down = j, i
elif abs(angle) < 0.00001:
up, down = i, j
else:
up, down = cls.get_up_down(mod, axis, top, bottom,
left, right, front, back)
ex = lambda a: cls.set_reduce(down, cls.set_reduce(cls.set_reduce(
up, down, '-'), (a, a, a), '*'), '+')
up_ = ex(up_limits)
down_ = ex(down_limits)
return (up, down), (up_, down_)
@classmethod
def update_bound_box(cls, object):
context = bpy.context
data = bpy.data
obj = object
matrix = obj.matrix_world.copy() # 物体矩阵
# add simple_deform mesh
(min_x, min_y, min_z), (max_x, max_y,
max_z) = cls.get_mesh_max_min_co(object)
vertexes = ((max_x, min_y, min_z),
(min_x, min_y, min_z),
(max_x, max_y, min_z),
(min_x, max_y, min_z),
(max_x, min_y, max_z),
(min_x, min_y, max_z),
(max_x, max_y, max_z),
(min_x, max_y, max_z))
if data.objects.get(G_NAME):
data.objects.remove(data.objects.get(G_NAME))
if data.meshes.get(G_NAME):
data.meshes.remove(data.meshes.get(G_NAME))
mesh = data.meshes.new(G_NAME)
mesh.from_pydata(vertexes, G_INDICES, [])
mesh.update()
new_object = data.objects.new(G_NAME, mesh)
cls.link_active_collection(new_object)
if new_object.parent != obj:
new_object.parent = obj
new_object.modifiers.clear()
subdivision = new_object.modifiers.new('1', 'SUBSURF')
subdivision.levels = 7
cls.G_SimpleDeformGizmoHandlerDit['modifiers_co'] = {}
cls.G_SimpleDeformGizmoHandlerDit['modifiers_co']['co'] = (
min_x, min_y, min_z), (max_x, max_y, max_z)
for mo in context.object.modifiers:
if mo.type == 'SIMPLE_DEFORM':
simple_deform = new_object.modifiers.new(
mo.name, 'SIMPLE_DEFORM')
simple_deform.deform_method = mo.deform_method
simple_deform.deform_axis = mo.deform_axis
simple_deform.lock_x = mo.lock_x
simple_deform.lock_y = mo.lock_y
simple_deform.lock_z = mo.lock_z
simple_deform.origin = mo.origin
simple_deform.limits[1] = mo.limits[1]
simple_deform.limits[0] = mo.limits[0]
simple_deform.angle = mo.angle
simple_deform.show_viewport = mo.show_viewport
obj = Utils.get_depsgraph(new_object)
cls.G_SimpleDeformGizmoHandlerDit['modifiers_co'][mo.name] = cls.get_mesh_max_min_co(
obj)
new_object.hide_set(True)
new_object.hide_viewport = False
new_object.hide_select = True
new_object.hide_render = True
new_object.hide_viewport = True
new_object.hide_set(True)
ver_len = obj.data.vertices.__len__()
edge_len = obj.data.edges.__len__()
if 'numpy_data' not in cls.G_SimpleDeformGizmoHandlerDit:
cls.G_SimpleDeformGizmoHandlerDit['numpy_data'] = {}
numpy_data = cls.G_SimpleDeformGizmoHandlerDit['numpy_data']
key = (ver_len, edge_len)
if key in numpy_data:
list_edges, list_vertices = numpy_data[key]
else:
list_edges = np.zeros(edge_len * 2, dtype=np.int32)
list_vertices = np.zeros(ver_len * 3, dtype=np.float32)
numpy_data[key] = (list_edges, list_vertices)
obj.data.vertices.foreach_get('co', list_vertices)
ver = list_vertices.reshape((ver_len, 3))
ver = np.insert(ver, 3, 1, axis=1).T
ver[:] = np.dot(matrix, ver)
ver /= ver[3, :]
ver = ver.T
ver = ver[:, :3]
obj.data.edges.foreach_get('vertices', list_edges)
indices = list_edges.reshape((edge_len, 2))
limits = context.object.modifiers.active.limits[:]
modifiers = [getattr(context.object.modifiers.active, i)
for i in G_MODIFIERS_PROPERTY]
cls.G_SimpleDeformGizmoHandlerDit['draw'] = (ver, indices, matrix, modifiers, limits)
@classmethod
def update_co_data(cls, ob, mod):
handler_dit = cls.G_SimpleDeformGizmoHandlerDit
if 'modifiers_co' in cls.G_SimpleDeformGizmoHandlerDit and ob.type in ('MESH', 'LATTICE'):
modifiers_co = cls.G_SimpleDeformGizmoHandlerDit['modifiers_co']
for index, mod_name in enumerate(modifiers_co):
co_items = list(modifiers_co.items())
if mod.name == mod_name:
cls.G_SimpleDeformGizmoHandlerDit['co'] = co_items[index - 1][1] if (index or (index != 1)) else \
modifiers_co['co']
@classmethod
def generate_co_data(cls):
handler_dit = cls.G_SimpleDeformGizmoHandlerDit
if 'co' not in handler_dit:
handler_dit['co'] = cls.get_mesh_max_min_co(
bpy.context.object)
return handler_dit['co']
@classmethod
def new_empty(cls, obj, mod):
origin = mod.origin
if origin is None:
new_name = G_NAME + '_Empty_' + str(uuid.uuid4())
origin_object = bpy.data.objects.new(new_name, None)
cls.link_active_collection(origin_object)
origin_object.hide_set(True)
origin_object.empty_display_size = min(obj.dimensions)
mod.origin = origin_object
else:
origin_object = mod.origin
origin_object.hide_viewport = False
if origin_object.parent != obj:
origin_object.parent = obj
# add constraints
if G_CON_LIMIT_NAME in origin_object.constraints.keys():
limit_constraints = origin.constraints.get(G_CON_LIMIT_NAME)
else:
limit_constraints = origin_object.constraints.new(
'LIMIT_ROTATION')
limit_constraints.name = G_CON_LIMIT_NAME
limit_constraints.owner_space = 'WORLD'
limit_constraints.space_object = obj
limit_constraints.use_transform_limit = True
limit_constraints.use_limit_x = True
limit_constraints.use_limit_y = True
limit_constraints.use_limit_z = True
con_copy_name = G_NAME + 'constraints_copy_rotation'
if con_copy_name in origin_object.constraints.keys():
copy_constraints = origin.constraints.get(con_copy_name)
else:
copy_constraints = origin_object.constraints.new(
'COPY_ROTATION')
copy_constraints.name = con_copy_name
copy_constraints.target = obj
copy_constraints.mix_mode = 'BEFORE'
copy_constraints.target_space = 'WORLD'
copy_constraints.owner_space = 'WORLD'
origin_object.rotation_euler.zero()
origin_object.scale = 1, 1, 1
return origin_object, G_CON_LIMIT_NAME
@classmethod
def co_to_direction(cls, mat, data):
(min_x, min_y, min_z), (max_x, max_y,
max_z) = data
a = mat @ Vector((max_x, max_y, max_z))
b = mat @ Vector((max_x, min_y, min_z))
c = mat @ Vector((min_x, max_y, min_z))
d = mat @ Vector((min_x, min_y, max_z))
def pos_get(a, b):
return cls.set_reduce(cls.set_reduce(a, b, '+'), (2, 2, 2), '/')
top = Vector(pos_get(a, d))
bottom = Vector(pos_get(c, b))
left = Vector(pos_get(c, d))
right = Vector(pos_get(a, b))
front = Vector(pos_get(d, b))
back = Vector(pos_get(c, a))
return top, bottom, left, right, front, back
@classmethod
def each_face_pos(cls, mat: 'Matrix' = None):
if mat is None:
mat = Matrix()
return cls.co_to_direction(mat, cls.G_SimpleDeformGizmoHandlerDit['co'])
@classmethod
def update_matrix(cls, mod, ob):
if mod.deform_method == 'BEND':
cls.new_empty(ob, mod)
if mod.origin:
empty_object = mod.origin
modifiers_co = cls.G_SimpleDeformGizmoHandlerDit['modifiers_co']
for index, mod_name in enumerate(modifiers_co):
co_items = list(modifiers_co.items())
if mod.name == mod_name:
data = co_items[index - 1][1] if (
index or (index != 1)) else modifiers_co['co']
(up, down), (up_, down_) = cls.get_limits_pos(
mod, cls.co_to_direction(ob.matrix_world.copy(), data))
origin_mode = cls.get_origin_property_group(
mod, ob).origin_mode
cls.set_empty_obj_matrix(
origin_mode, empty_object, up_, down_, up, down)
@classmethod
def update_empty_matrix(cls):
ob = bpy.context.object
for mod in ob.modifiers:
if mod.type == 'SIMPLE_DEFORM':
cls.update_matrix(mod, ob)
@classmethod
def get_up_down_return_list(cls, mod, axis, up_, down_, data):
top, bottom, left, right, front, back = data
if 'BEND' == mod.deform_method:
if axis in ('X', 'Y'):
top = up_
bottom = down_
elif axis == 'Z':
right = up_
left = down_
else:
if axis == 'X':
right = up_
left = down_
elif axis == 'Y':
back = up_
front = down_
elif axis == 'Z':
top = up_
bottom = down_
return top, bottom, left, right, front, back
def register():
Pref.load_gizmo_data()
def unregister():
...