IO for active cells #414

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1. dccowan

   self-assigned this

   on Jun 25, 2026
2. jcapriot commented on Jun 25, 2026

   

   jcapriot

   on Jun 25, 2026

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   What point do the `write_model_UBC’ style functions change the dtype of the array?
3. dccowan commented on Jun 25, 2026

   

   dccowan

   on Jun 25, 2026

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   What point do the `write_model_UBC’ style functions change the dtype of the array?

   If I first convert from a boolean array to int array, it happen when calling np.savetxt, since it uses the default format option. This is something that could be changed. If you want the least amount of change to the code, we could add code which 1) checks to see if the array is a boolean array, then 2) convert to 0s and 1s, then 3) writes with the proper formatting. Do you want to do that?

   I just keep running into this as I move between SimPEG and UBC-GIF stuff
4. jcapriot commented on Jun 25, 2026

   

   jcapriot

   on Jun 25, 2026

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   Ah, I see... Maybe then we should just do a format string that depends on the dtype of the input:

   if np.issubdtype(arr.dtype, np.inexact):
       fmt  = "%.18e"
   elif np.issubdtype(arr.dtype, np.integer) or np.issubdtype(arr.dtype, np.bool_):
       fmt = "%i"
   else:
       fmt = "%s"

   • assuming that an array of bools should be written as 0's and 1's.
5. dccowan commented on Jun 25, 2026

   

   dccowan

   on Jun 25, 2026

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   That's probably the easiest fix. I'm happy to do this.

   👍React with 👍1Reacted by Joseph Capriotti
6. jcapriot commented on Jun 25, 2026

   

   jcapriot

   on Jun 25, 2026

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   Would it also be helpful to add a ‘dtype’ option to the corresponding read in values as well that forces a data type on `np.loadtxt’?