vent_DXF/drawer/GateDrawer.py

from core import rotate_point_around_another
from ezdxf import math as mt


class GateDrawer:
    def __init__(self, msp, layer, gap, center, route):
        self.layer = layer
        self.msp = msp
        self.gap = gap
        self.center = center
        self.route = route

    def draw_gate(self):
        grid = 0.8 * self.gap
        rad = self.gap * 0.8

        point_center = self.center
        route = self.route
        # 计算第一个门的三个点
        gate1_circle_a = (point_center[0] - grid, point_center[1] + rad)
        gate1_circle_b = (point_center[0] - grid, point_center[1] - rad)
        gate1_circle_c = (point_center[0] - grid + rad, point_center[1])

        # 旋转这些点
        gate1_a = rotate_point_around_another(gate1_circle_a, point_center, route)
        gate1_b = rotate_point_around_another(gate1_circle_b, point_center, route)
        gate1_c = rotate_point_around_another(gate1_circle_c, point_center, route)

        # 创建和添加第一个门的弧和线
        self.add_gate_part(gate1_a, gate1_b, gate1_c)

        # 计算第二个门的三个点
        gate2_circle_a = (point_center[0] + grid, point_center[1] + rad)
        gate2_circle_b = (point_center[0] + grid, point_center[1] - rad)
        gate2_circle_c = (point_center[0] + grid - rad, point_center[1])

        # 旋转这些点
        gate2_a = rotate_point_around_another(gate2_circle_a, point_center, route)
        gate2_b = rotate_point_around_another(gate2_circle_b, point_center, route)
        gate2_c = rotate_point_around_another(gate2_circle_c, point_center, route)

        # 创建和添加第二个门的弧和线
        self.add_gate_part(gate2_a, gate2_b, gate2_c)

    def add_gate_part(self, start_point, end_point, def_point):
        carc = mt.arc.ConstructionArc()
        b = carc.from_3p(start_point=start_point, def_point=def_point, end_point=end_point)
        self.msp.add_arc(center=b.center, radius=b.radius, start_angle=b.start_angle, end_angle=b.end_angle,
                         dxfattribs={"layer": f"图层{self.layer}"})
        # self.msp.add_lwpolyline([(start_point[0], start_point[1], 1), (end_point[0], end_point[1], 0)], format="xyb", dxfattribs={"layer": f"图层{self.layer}"})
        self.msp.add_line(start_point, end_point, dxfattribs={"layer": f"图层{self.layer}"})