''' 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. END GPL LICENCE BLOCK ''' import bpy import bmesh from mathutils import geometry from mesh_tinyCAD import cad_module as cm def add_line_to_bisection(self): obj = bpy.context.object me = obj.data bm = bmesh.from_edit_mesh(me) edges = [e for e in bm.edges if (e.select and not e.hide)] if not len(edges) == 2: msg = "select two coplanar non parallel edges" self.report({"WARNING"}, msg) return [[v1, v2], [v3, v4]] = [[v.co for v in e.verts] for e in edges] print('vectors found:\n', v1, '\n', v2, '\n', v3, '\n', v4) dist1 = (v1-v2).length dist2 = (v3-v4).length bdist = min([dist1, dist2]) edge1 = (v1, v2) edge2 = (v3, v4) if not cm.test_coplanar(edge1, edge2): msg = "edges must be coplanar non parallel edges" self.report({"WARNING"}, msg) return # get pt and pick fartest vertex from (projected) intersections pt = cm.get_intersection(edge1, edge2) far1 = v2 if (v1-pt).length < (v2-pt).length else v1 far2 = v4 if (v3-pt).length < (v4-pt).length else v3 # print('intersection: ', pt) dex1 = far1 - pt dex2 = far2 - pt dex1 = dex1 * (bdist / dex1.length) dex2 = dex2 * (bdist / dex2.length) pt2 = pt + (dex1).lerp(dex2, 0.5) # print('bisector point:', pt2) pt3 = pt2.lerp(pt, 2.0) vec1 = bm.verts.new(pt2) vec2 = bm.verts.new(pt) vec3 = bm.verts.new(pt3) bm.edges.new((vec1, vec2)) bm.edges.new((vec2, vec3)) bmesh.update_edit_mesh(me) # print("done") class LineOnBisection(bpy.types.Operator): bl_idname = 'mesh.linetobisect' bl_label = 'bix line to bisector' bl_options = {'REGISTER', 'UNDO'} @classmethod def poll(self, context): obj = context.active_object return all([obj is not None, obj.type == 'MESH', obj.mode == 'EDIT']) def execute(self, context): add_line_to_bisection(self) return {'FINISHED'}