diff options
Diffstat (limited to 'uv_magic_uv/impl/unwrap_constraint_impl.py')
-rw-r--r-- | uv_magic_uv/impl/unwrap_constraint_impl.py | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/uv_magic_uv/impl/unwrap_constraint_impl.py b/uv_magic_uv/impl/unwrap_constraint_impl.py new file mode 100644 index 00000000..25719798 --- /dev/null +++ b/uv_magic_uv/impl/unwrap_constraint_impl.py @@ -0,0 +1,98 @@ +# ##### 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__ = "5.2" +__date__ = "17 Nov 2018" + +import bpy +import bmesh + +from .. import common + + +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 + + +class UnwrapConstraintImpl: + @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, ops_obj, 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: + ops_obj.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=ops_obj.method, + fill_holes=ops_obj.fill_holes, + correct_aspect=ops_obj.correct_aspect, + use_subsurf_data=ops_obj.use_subsurf_data, + margin=ops_obj.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 ops_obj.u_const: + l[uv_layer].uv.x = uv.x + if ops_obj.v_const: + l[uv_layer].uv.y = uv.y + + # update mesh + bmesh.update_edit_mesh(obj.data) + + return {'FINISHED'} |