ring.cavpts: creation

[lnadolski]

Dear All,

Could you please tell me where ring.cavpts is defined.
Is there a special function to create it after loading a given lattice?
Shall we do it manually?

Best regards,

Laurent.

[lcarver]

Hello,
I normally just define it myself. I am not aware of any in-built function.

cavpts = at.get_value_refpts(ring, at.RFCavity)
Cheers,
Lee

EDIT: This was wrong. Correct one is below.

[lnadolski]

get_value_refpts() missing 1 required positional argument: 'attrname'

[lnadolski]

In [124]: at.version
Out[124]: '0.5.0'

[lcarver]

Sorry this was my mistake.

cavpts = at.get_uint32_index(ring, at.RFCavity)

[lnadolski]

cavpts = ring.get_refpts(at.RFCavity) works as well

[lfarv]

Hi all,

Right, this attribute is really optional, it's not necessary to specify it. It's useful if you want to restrict the default cavity operations to a set of cavities. By default, AT takes as "main cavities" the cavities with the lowest frequency. You can set manually ring.cavpts if this assumption is not true. It may also save some time by avoiding the search for the lowest frequency. But then you are responsible for the cavpts attribute. Otherwise, forget it.

See here for explanations.