1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
__author__ = "Nutti <nutti.metro@gmail.com>"
__status__ = "production"
__version__ = "6.3"
__date__ = "10 Aug 2020"
import bpy
from bpy.props import (
BoolProperty,
EnumProperty,
FloatProperty,
)
import bmesh
from .. import common
from ..utils.bl_class_registry import BlClassRegistry
from ..utils.property_class_registry import PropertyClassRegistry
from ..utils import compatibility as compat
def _is_valid_context(context):
obj = context.object
# only edit mode is allowed to execute
if obj is None:
return False
if obj.type != 'MESH':
return False
if context.object.mode != 'EDIT':
return False
# only 'VIEW_3D' space is allowed to execute
for space in context.area.spaces:
if space.type == 'VIEW_3D':
break
else:
return False
return True
@PropertyClassRegistry()
class _Properties:
idname = "unwrap_constraint"
@classmethod
def init_props(cls, scene):
scene.muv_unwrap_constraint_enabled = BoolProperty(
name="Unwrap Constraint Enabled",
description="Unwrap Constraint is enabled",
default=False
)
scene.muv_unwrap_constraint_u_const = BoolProperty(
name="U-Constraint",
description="Keep UV U-axis coordinate",
default=False
)
scene.muv_unwrap_constraint_v_const = BoolProperty(
name="V-Constraint",
description="Keep UV V-axis coordinate",
default=False
)
@classmethod
def del_props(cls, scene):
del scene.muv_unwrap_constraint_enabled
del scene.muv_unwrap_constraint_u_const
del scene.muv_unwrap_constraint_v_const
@BlClassRegistry(legacy=True)
@compat.make_annotations
class MUV_OT_UnwrapConstraint(bpy.types.Operator):
"""
Operation class: Unwrap with constrain UV coordinate
"""
bl_idname = "uv.muv_unwrap_constraint"
bl_label = "Unwrap Constraint"
bl_description = "Unwrap while keeping uv coordinate"
bl_options = {'REGISTER', 'UNDO'}
# property for original unwrap
method = EnumProperty(
name="Method",
description="Unwrapping method",
items=[
('ANGLE_BASED', 'Angle Based', 'Angle Based'),
('CONFORMAL', 'Conformal', 'Conformal')
],
default='ANGLE_BASED')
fill_holes = BoolProperty(
name="Fill Holes",
description="Virtual fill holes in meshes before unwrapping",
default=True)
correct_aspect = BoolProperty(
name="Correct Aspect",
description="Map UVs taking image aspect ratio into account",
default=True)
use_subsurf_data = BoolProperty(
name="Use Subsurf Modifier",
description="""Map UVs taking vertex position after subsurf
into account""",
default=False)
margin = FloatProperty(
name="Margin",
description="Space between islands",
max=1.0,
min=0.0,
default=0.001)
# property for this operation
u_const = BoolProperty(
name="U-Constraint",
description="Keep UV U-axis coordinate",
default=False
)
v_const = BoolProperty(
name="V-Constraint",
description="Keep UV V-axis coordinate",
default=False
)
@classmethod
def poll(cls, context):
# we can not get area/space/region from console
if common.is_console_mode():
return True
return _is_valid_context(context)
def execute(self, context):
obj = context.active_object
bm = bmesh.from_edit_mesh(obj.data)
if common.check_version(2, 73, 0) >= 0:
bm.faces.ensure_lookup_table()
# bpy.ops.uv.unwrap() makes one UV map at least
if not bm.loops.layers.uv:
self.report({'WARNING'}, "Object must have more than one UV map")
return {'CANCELLED'}
uv_layer = bm.loops.layers.uv.verify()
# get original UV coordinate
faces = [f for f in bm.faces if f.select]
uv_list = []
for f in faces:
uvs = [l[uv_layer].uv.copy() for l in f.loops]
uv_list.append(uvs)
# unwrap
bpy.ops.uv.unwrap(
method=self.method,
fill_holes=self.fill_holes,
correct_aspect=self.correct_aspect,
use_subsurf_data=self.use_subsurf_data,
margin=self.margin)
# when U/V-Constraint is checked, revert original coordinate
for f, uvs in zip(faces, uv_list):
for l, uv in zip(f.loops, uvs):
if self.u_const:
l[uv_layer].uv.x = uv.x
if self.v_const:
l[uv_layer].uv.y = uv.y
# update mesh
bmesh.update_edit_mesh(obj.data)
return {'FINISHED'}
|
