class NodeGapDrawer:

    def __init__(self,msp,point_list,layer_id):
        self.msp = msp
        self.point_list =point_list
        self.layer_id = layer_id

    def draw_gap(self):
        hatch = self.msp.add_hatch(dxfattribs={"layer": f"图层{self.layer_id}"})
        hatch.rgb = (0, 0, 0)
        edge_path = hatch.paths.add_edge_path()
        for i in range(len(self.point_list)):
            if i+1<len(self.point_list): edge_path.add_line(self.point_list[i], self.point_list[i + 1])
        edge_path.add_line(self.point_list[-1], self.point_list[0])