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- import math
- import core
- from drawer.BaseDrawer import VentGraphDrawer
- class FanMainDrawer(VentGraphDrawer):
- def initialize_data(self):
- pass
- def draw_obj(self, center, route):
- rad = 0.5 * self.obj.width
- a = math.pi / 8
- b = 10 / 3 * rad
- self.msp.add_circle(center=center, radius=rad, dxfattribs={"layer": f"图层{self.obj.layer_id}"})
- A = (rad * math.cos(a) + center[0], rad * math.sin(a) + center[1])
- C = (rad * math.cos(a) + center[0], -rad * math.sin(a) + center[1])
- B = ((b / 2) / math.tan(a) + center[0], (b / 2) + center[1])
- D = ((b / 2) / math.tan(a) + center[0], -(b / 2) + center[1])
- A = core.rotate_point_around_another(A, center, route)
- B = core.rotate_point_around_another(B, center, route)
- C = core.rotate_point_around_another(C, center, route)
- D = core.rotate_point_around_another(D, center, route)
- self.msp.add_line(A, B, dxfattribs={"layer": f"图层{self.obj.layer_id}"})
- self.msp.add_line(B, D, dxfattribs={"layer": f"图层{self.obj.layer_id}"})
- self.msp.add_line(C, D, dxfattribs={"layer": f"图层{self.obj.layer_id}"})
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