三视图dxf 生成brep 3d图重建 pythonocc solid

 如果投影面闭合图形内有内线，生成对应面会失败导致solid生成失败

三视图dxf 生成brep 3d图重建 pythonocc solid

斜面不支持

这个投影面没什么问题，应该是图连接的问题

from collections import defaultdict
from 三维投影线段寻找 import get_adjusted_clusters,get_clusters,get_intersect_linesdxf_file_path = 'c.dxf'clusters=get_clusters(dxf_file_path)adjusted_clusters,yz中间面线段集,xy上下面线段集,xz左右面线段集  =get_adjusted_clusters(clusters)
intersect_lines=get_intersect_lines(xz左右面线段集,yz中间面线段集,xy上下面线段集)
intersect_lines1,intersect_lines2,intersect_lines3 = intersect_linesimport networkx as nx
from OCC.Core.BRepBuilderAPI import (BRepBuilderAPI_MakePolygon,BRepBuilderAPI_MakeFace,BRepBuilderAPI_MakeShell,BRepBuilderAPI_MakeSolid
)
from OCC.Core.BRep import BRep_Builder
from OCC.Core.TopoDS import TopoDS_Compound, TopoDS_Shellfrom OCC.Core.BRepLib import breplib_BuildCurves3d
from OCC.Core.gp import gp_Pntdef get_closed_subgraphs_in_open_faces(intersect_lines):all_polygons = []G = nx.Graph()G.add_edges_from(intersect_lines)cycles = list(nx.cycle_basis(G))for cycle in cycles:if cycle[0] != cycle[-1]:cycle.append(cycle[0])all_polygons.append(cycle)return all_polygonsdef create_face_from_polygon(points):make_polygon = BRepBuilderAPI_MakePolygon()for pt in points:make_polygon.Add(gp_Pnt(*pt))make_polygon.Close()wire = make_polygon.Wire()breplib_BuildCurves3d(wire)face = BRepBuilderAPI_MakeFace(wire).Face()return facedef create_shell_and_solid(polygons):"""输入：polygons 是所有多边形点集 [[(x, y, z), ...], ...]输出：TopoDS_Solid"""builder = BRep_Builder()shell = TopoDS_Shell()builder.MakeShell(shell)for polygon in polygons:face = create_face_from_polygon(polygon)builder.Add(shell, face)solid_builder = BRepBuilderAPI_MakeSolid(shell)solid = solid_builder.Solid()return solid# 生成所有多边形
polygons1 = get_closed_subgraphs_in_open_faces(intersect_lines1)
polygons2 = get_closed_subgraphs_in_open_faces(intersect_lines2)
polygons3 = get_closed_subgraphs_in_open_faces(intersect_lines3)
all_polygons = polygons1 + polygons2 + polygons3# 构建实体
solid = create_shell_and_solid(all_polygons)
# 显示模块
from OCC.Display.SimpleGui import init_display
display, start_display, add_menu, add_function_to_menu = init_display()
display.DisplayShape(solid, update=True)
start_display()
print("finished.")