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
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
# ##### 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 #####
# <pep8 compliant>
bl_info = {
"name": "Inset Polygon",
"author": "Howard Trickey",
"version": (0, 3),
"blender": (2, 5, 7),
"api": 36147,
"location": "View3D > Tools",
"description": "Make an inset polygon inside selection.",
"warning": "",
"wiki_url": \
"http://wiki.blender.org/index.php/Extensions:2.5/Py/Scripts/Modeling/Inset-Polygon",
"tracker_url": \
"http://projects.blender.org/tracker/index.php?func=detail&aid=27290&group_id=153&atid=468",
"category": "Mesh"}
if "bpy" in locals():
import imp
else:
from . import geom
from . import model
from . import offset
from . import triquad
import math
import bpy
import mathutils
from bpy.props import *
class Inset(bpy.types.Operator):
bl_idname = "mesh.inset"
bl_label = "Inset"
bl_description = "Make an inset polygon inside selection"
bl_options = {'REGISTER', 'UNDO'}
inset_amount = FloatProperty(name="Amount",
description="Amount to move inset edges",
default=5.0,
min=0.0,
max=1000.0,
soft_min=0.0,
soft_max=100.0,
unit='LENGTH')
inset_height = FloatProperty(name="Height",
description="Amount to raise inset faces",
default=0.0,
min=-10000.0,
max=10000.0,
soft_min=-500.0,
soft_max=500.0,
unit='LENGTH')
region = BoolProperty(name="Region",
description="Inset selection as one region?",
default=True)
scale = EnumProperty(name="Scale",
description="Scale for amount",
items=[
('PERCENT', "Percent",
"Percentage of maximum inset amount"),
('ABSOLUTE', "Absolute",
"Length in blender units")
],
default='PERCENT')
@classmethod
def poll(cls, context):
obj = context.active_object
return (obj and obj.type == 'MESH' and context.mode == 'EDIT_MESH')
def draw(self, context):
layout = self.layout
box = layout.box()
box.label("Inset Options")
box.prop(self, "scale")
box.prop(self, "inset_amount")
box.prop(self, "inset_height")
box.prop(self, "region")
def invoke(self, context, event):
self.action(context)
return {'FINISHED'}
def execute(self, context):
self.action(context)
return {'FINISHED'}
def action(self, context):
save_global_undo = bpy.context.user_preferences.edit.use_global_undo
bpy.context.user_preferences.edit.use_global_undo = False
bpy.ops.object.mode_set(mode='OBJECT')
obj = bpy.context.active_object
mesh = obj.data
do_inset(mesh, self.inset_amount, self.inset_height, self.region,
self.scale == 'PERCENT')
bpy.ops.object.mode_set(mode='EDIT')
bpy.context.user_preferences.edit.use_global_undo = save_global_undo
def do_inset(mesh, amount, height, region, as_percent):
if amount <= 0.0:
return
pitch = math.atan(height / amount)
selfaces = []
selface_indices = []
for face in mesh.faces:
if face.select and not face.hide:
selfaces.append(face)
selface_indices.append(face.index)
m = geom.Model()
# if add all mesh.vertices, coord indices will line up
# Note: not using Points.AddPoint which does dup elim
# because then would have to map vertices in and out
m.points.pos = [v.co.to_tuple() for v in mesh.vertices]
for f in selfaces:
m.faces.append(list(f.vertices))
m.face_data.append(f.index)
orig_numv = len(m.points.pos)
orig_numf = len(m.faces)
model.BevelSelectionInModel(m, amount, pitch, True, region, as_percent)
if len(m.faces) == orig_numf:
# something went wrong with Bevel - just treat as no-op
return
# blender_faces: newfaces but all 4-tuples and no 0
# in 4th position if a 4-sided poly
blender_faces = []
blender_old_face_index = []
for i in range(orig_numf, len(m.faces)):
f = m.faces[i]
if len(f) == 3:
blender_faces.append(list(f) + [0])
blender_old_face_index.append(m.face_data[i])
elif len(f) == 4:
if f[3] == 0:
blender_faces.append([f[3], f[0], f[1], f[2]])
else:
blender_faces.append(f)
blender_old_face_index.append(m.face_data[i])
num_new_vertices = len(m.points.pos) - orig_numv
mesh.vertices.add(num_new_vertices)
for i in range(orig_numv, len(m.points.pos)):
mesh.vertices[i].co = mathutils.Vector(m.points.pos[i])
start_faces = len(mesh.faces)
mesh.faces.add(len(blender_faces))
for i, newf in enumerate(blender_faces):
mesh.faces[start_faces + i].vertices_raw = newf
# copy face attributes from old face that it was derived from
bfi = blender_old_face_index[i]
if bfi and 0 <= bfi < start_faces:
bfacenew = mesh.faces[start_faces + i]
bface = mesh.faces[bfi]
bfacenew.material_index = bface.material_index
bfacenew.use_smooth = bface.use_smooth
mesh.update(calc_edges=True)
# remove original faces
bpy.ops.object.mode_set(mode='EDIT')
save_select_mode = bpy.context.tool_settings.mesh_select_mode
bpy.context.tool_settings.mesh_select_mode = [False, False, True]
bpy.ops.mesh.select_all(action='DESELECT')
bpy.ops.object.mode_set(mode='OBJECT')
for fi in selface_indices:
mesh.faces[fi].select = True
bpy.ops.object.mode_set(mode='EDIT')
bpy.ops.mesh.delete(type='FACE')
bpy.context.tool_settings.mesh_select_mode = save_select_mode
def panel_func(self, context):
self.layout.label(text="Inset:")
self.layout.operator("mesh.inset", text="Inset")
def register():
bpy.utils.register_class(Inset)
bpy.types.VIEW3D_PT_tools_meshedit.append(panel_func)
def unregister():
bpy.utils.unregister_class(Inset)
bpy.types.VIEW3D_PT_tools_meshedit.remove(panel_func)
if __name__ == "__main__":
register()
|
