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- import math
- from ezdxf import math as mt
- from core import rotate_point_around_another
- class FanSystemDrawer:
- def __init__(self, msp, gap, center, route):
- self.msp = msp
- self.gap = gap
- self.center = center
- self.route = route
- def draw_fan_system(self):
- rad = self.gap / 2
- carc = mt.arc.ConstructionArc()
- # 初始化扇形起始和结束点
- fan_a_start = (self.center[0], self.center[1] + rad)
- fan_b_start = (self.center[0] - rad / 2, self.center[1] + rad / 2)
- # 绘制中心圆
- self.msp.add_circle(self.center, rad)
- # 绘制每个扇形
- for i in range(3):
- fan_a = rotate_point_around_another(fan_a_start, self.center, self.route + i * (2 / 3) * math.pi)
- fan_b = rotate_point_around_another(fan_b_start, self.center, self.route + i * (2 / 3) * math.pi)
- fan_carc_3p = carc.from_3p(start_point=fan_a, def_point=fan_b, end_point=self.center)
- self.msp.add_arc(center=fan_carc_3p.center, radius=fan_carc_3p.radius,
- start_angle=fan_carc_3p.start_angle, end_angle=fan_carc_3p.end_angle)
- # 绘制中心到扇形起点的线段
- self.msp.add_line(fan_a, self.center)
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