example for concentric layers of rings

[shimwell]

We can make concentric rings with the following approach, perhaps we should have and example for this as it is useful for fission reactors and hex latices

import paramak

components = []
hexagon_length= 10
height = 5
channel_radius=5

for ring_number in range(3,13):
    total_number = 3*ring_number*(ring_number+1)+1
    number_in_previous_layers = 3*(ring_number-1)*ring_number+1
    number_in_layer=total_number-number_in_previous_layers

    component=paramak.CoolantChannelRingStraight(
        name=f'ring_number_{ring_number}',
        workplane="XY",
        rotation_axis="Z",
        height=height,
        channel_radius=channel_radius,
        number_of_coolant_channels=number_in_layer,
        start_angle=(360/number_in_layer)*(ring_number%2)/2,
        ring_radius=hexagon_length*ring_number,
        rotation_angle=180
    )
    
    components.append(component)

c= paramak.Reactor(components)
c.show()