vent_DXF_2/drawer/face_drawer.py

from drawer.BaseDrawer import VentGraphDrawer, BaseDrawer
from entity.Node import Node
from entity.primitives import Empty, Face


class FaceDrawer(BaseDrawer):

    def __init__(self, obj, msp, style):

        self.face_drawers = {
            0: self.draw_face_style_0,
        }

        super().__init__(obj, msp, style)

    def initialize_data(self):
        pass

    def draw_agg(self):
        self.face_drawers[self.style]('agg')

    def draw_div(self):
        self.face_drawers[self.style]('div')

    def draw_face_style_0(self,type):

        assert isinstance(self.obj, Face)

        point_attr = 'agg_point' if type == 'agg' else 'div_point'
        boundary_points = []
        for node in self.obj.node_list:
            node = getattr(node, point_attr)
            boundary_points.append(node)

        hatch = self.msp.add_hatch(color=1)
        hatch.set_pattern_fill(name='JIS_WOOD', scale=20, angle=75)

        # 新版本直接添加多段线路径，无需 flags 参数
        hatch.paths.add_polyline_path(
            boundary_points,
            is_closed=True  # 只需确保闭合即可
        )