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# ##### 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>
import bpy
import bmesh
from mathutils.geometry import intersect_line_plane
def failure_message(self):
self.report({"WARNING"}, 'select 1 face and 1 detached edge')
def extend_vertex(self):
obj = bpy.context.edit_object
me = obj.data
bm = bmesh.from_edit_mesh(me)
verts = bm.verts
faces = bm.faces
planes = [f for f in faces if f.select]
if (len(planes) > 1) or (len(planes) == 0):
failure_message(self)
return
plane = planes[0]
plane_vert_indices = [v for v in plane.verts[:]]
all_selected_vert_indices = [v for v in verts if v.select]
M = set(plane_vert_indices)
N = set(all_selected_vert_indices)
O = N.difference(M)
O = list(O)
if not len(O) == 2:
failure_message(self)
return
(v1_ref, v1), (v2_ref, v2) = [(i, i.co) for i in O]
plane_co = plane.calc_center_median()
plane_no = plane.normal
new_co = intersect_line_plane(v1, v2, plane_co, plane_no, False)
new_vertex = verts.new(new_co)
A_len = (v1 - new_co).length
B_len = (v2 - new_co).length
vertex_reference = v1_ref if (A_len < B_len) else v2_ref
bm.edges.new([vertex_reference, new_vertex])
bmesh.update_edit_mesh(me, True)
class TCEdgeToFace(bpy.types.Operator):
'''Extend selected edge towards projected intersection with a selected face'''
bl_idname = 'tinycad.edge_to_face'
bl_label = 'E2F edge to face'
bl_options = {'REGISTER', 'UNDO'}
@classmethod
def poll(cls, context):
ob = context.object
return all([bool(ob), ob.type == 'MESH', ob.mode == 'EDIT'])
def execute(self, context):
extend_vertex(self)
return {'FINISHED'}
def register():
bpy.utils.register_module(__name__)
def unregister():
bpy.utils.unregister_module(__name__)
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