forked from Jrome90/Make_Corner_End
/
make_corner.py
219 lines (168 loc) · 8.66 KB
/
make_corner.py
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from typing import *
from collections import defaultdict
import bpy
from bpy.props import FloatProperty, BoolProperty
import bmesh
from bmesh.types import *
from mathutils.geometry import intersect_line_line, intersect_point_line
from .utils import (get_selected_edges,
get_selected_verts,
get_face_loops_for_vert,
get_face_with_verts,
get_vertex_shared_by_edges,
get_face_with_edges,
bmesh_subdivide_edge,
get_addon_preferences,
)
class MCE_OT_MakeCorner(bpy.types.Operator):
bl_idname = "mce.make_corner"
bl_label = "make corner"
bl_options = {'REGISTER', 'UNDO'}
bl_description = "Make a quad corner."
position: FloatProperty(name="Position", default=0.0, description="")
uneven_spacing: BoolProperty(name="Uneven spacing", default=False, description="")
@classmethod
def poll(cls, context):
return (
context.active_object is not None
and context.active_object.type == "MESH"
and context.active_object.mode == 'EDIT'
)
def execute(self, context):
self.execute_make_corner(context)
return {'FINISHED'}
def invoke(self, context, event):
return self.execute(context)
@staticmethod
def make_corner(bm, verts, fac=0.0):
face = get_face_with_verts(verts)
if face is not None and len(face.edges) == 6:
done = False
loop_a = None
loop_b = None
for vert in verts:
face_loops = get_face_loops_for_vert(vert, face)
for loop in face_loops:
if loop.vert in verts:
loop_a = loop
if loop.link_loop_next.link_loop_next.vert in verts:
loop_b = loop.link_loop_next
done = True
break
if done:
break
if loop_a is not None and loop_b is not None:
edge_a = loop_a.link_loop_prev.link_loop_prev.edge
edge_b = loop_b.link_loop_next.link_loop_next.edge
edge_a_mid = edge_a.verts[0].co.lerp(edge_a.verts[1].co, 0.5)
edge_b_mid = edge_b.verts[0].co.lerp(edge_b.verts[1].co, 0.5)
p1 = loop_b.edge.other_vert(loop_b.vert).co.lerp(edge_a_mid, 0.5)
p2 = loop_a.vert.co.lerp(edge_b_mid, 0.5)
center_vert_co = p1.lerp(p2, 0.5)
connect_vert = get_vertex_shared_by_edges([edge_a, edge_b])
center_vert_co = center_vert_co.lerp(connect_vert.co, fac)
# Make the corner geometry
center_vert: BMVert = bm.verts.new(center_vert_co)
bm.verts.index_update()
new_edge1 = bm.edges.new([verts[0], center_vert])
new_edge2 = bm.edges.new([verts[1], center_vert])
new_edge3 = bm.edges.new([connect_vert, center_vert])
bm.edges.index_update()
bm.faces.ensure_lookup_table()
bm.edges.ensure_lookup_table()
bm.verts.ensure_lookup_table()
bmesh.utils.face_split_edgenet(face, [new_edge1, new_edge2, new_edge3])
def make_corner_alt(self, bm, verts, fac=0.5):
face = get_face_with_verts(verts)
if face is not None and len(face.edges) == 6:
done = False
loop_a = None
loop_b = None
for vert in verts:
face_loops = get_face_loops_for_vert(vert, face)
for loop in face_loops:
if loop.vert in verts:
loop_a = loop
if loop.link_loop_next.link_loop_next.vert in verts:
loop_b = loop.link_loop_next
done = True
break
if done:
break
if loop_a is not None and loop_b is not None:
edge_a = loop_a.link_loop_prev.link_loop_prev.edge
edge_b = loop_b.link_loop_next.link_loop_next.edge
vert_a = loop_a.vert
vert_b = loop_b.edge.other_vert(loop_b.vert)
edge_a_point, _ = intersect_point_line(vert_b.co, edge_a.verts[0].co, edge_a.verts[1].co)
edge_b_point, _ = intersect_point_line(vert_a.co, edge_b.verts[0].co, edge_b.verts[1].co)
isect_point = intersect_line_line(edge_a_point, vert_b.co, edge_b_point, vert_a.co)
if isect_point is not None:
center_vert_co = isect_point[0]
shared_vert = get_vertex_shared_by_edges([loop_a.edge, loop_b.edge])
connect_vert = get_vertex_shared_by_edges([edge_a, edge_b])
center_vert_co = center_vert_co.lerp(connect_vert.co, fac)
# Make the corner geometry
center_vert: BMVert = bmesh.ops.create_vert(bm, co=center_vert_co)["vert"][0]
bm.faces.ensure_lookup_table()
bm.edges.ensure_lookup_table()
bm.verts.ensure_lookup_table()
new_edge_a = bm.edges.new([vert_a, center_vert])
new_edge_b= bm.edges.new([vert_b, center_vert])
new_edge_c = bm.edges.new([center_vert, connect_vert])
bmesh.utils.face_split_edgenet(face, [new_edge_a, new_edge_b, new_edge_c])
def execute_make_corner(self, context):
# Get the active mesh
obj = context.active_object
mesh = obj.data
bm = bmesh.from_edit_mesh(mesh)
bm.select_mode = {'EDGE'}
bm.select_flush_mode()
face_set = set()
vert_pairs = []
for edge in get_selected_edges(bm):
# A simple check to prevent accidental edge dissolves. This can still fail.
if (len(edge.link_faces) == 2) and \
(len(edge.link_faces[0].edges) == 3 or len(edge.link_faces[1].edges) == 3) and \
(len(edge.link_faces[0].edges) == 5 or len(edge.link_faces[1].edges) == 5):
vert_pairs.append(list(edge.verts))
face_set.update([face.index for face in edge.link_faces])
bmesh.ops.dissolve_edges(bm, edges=[edge])
face_vert_map = defaultdict(list)
for vert in get_selected_verts(bm):
for face in vert.link_faces:
if face.index not in face_set:
face_vert_map[face.index].append(vert)
for verts in face_vert_map.values():
if len(verts) == 2:
vert_pairs.append(verts)
for vert_pair in vert_pairs:
if not self.uneven_spacing:
self.make_corner(bm, vert_pair, fac=self.position)
else:
self.make_corner_alt(bm, vert_pair, fac=self.position)
if get_addon_preferences().use_with_quads:
# Are we in edge select mode?
if context.scene.tool_settings.mesh_select_mode[1] == True:
for i in range(0, len(bm.select_history), 2):
selected_edges = [bm.select_history[i], bm.select_history[i+1]]
face = get_face_with_edges(selected_edges)
if face is not None and len(face.edges) == 4:
new_geom_a = bmesh_subdivide_edge(bm, bm.select_history[i], 1)
new_vert_a = list(filter(lambda element : isinstance(element, BMVert), new_geom_a))
new_geom_b = bmesh_subdivide_edge(bm, bm.select_history[i+1], 1)
new_vert_b = list(filter(lambda element : isinstance(element, BMVert), new_geom_b))
vert_pair = [new_vert_a[0], new_vert_b[0]]
if not self.uneven_spacing:
self.make_corner(bm, vert_pair, fac=self.position)
else:
self.make_corner_alt(bm, vert_pair, fac=self.position)
bm.faces.ensure_lookup_table()
bm.edges.ensure_lookup_table()
bm.verts.ensure_lookup_table()
bm.edges.index_update()
bm.verts.index_update()
bm.faces.index_update()
bm.select_flush_mode()
bm.normal_update()
bmesh.update_edit_mesh(mesh)