AutoProf fails to fit isophotes of face-on galaxies about autoprof HOT 5 OPEN

Thanks for the prompt reply. Let me give it a try and see if it works as expected. btw, I forgot to mention that I used a perturbation scale = 0.1 to achieve successful face-on fits, and have not yet evaluated the impact on computation time.

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btw, during initialization, the optimization of global ellipticity also involves _inv_x_to_eps and _x_to_eps.

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Hi @hgao-astro,

Wow, this is great work! To me this seems clearly better for face-on galaxies. My only concern is for edge-on systems with ellip close to 1. In that case the shape becomes very sensitive to small changes in the ellipticity and so part of the remapping of _x_to_eps was to effectively decrease the step size near edge-on. Perhaps we could get the best of both worlds by adding an if statement which does the _x_to_eps scheme when ellip > 0.5 and doing your reflection scheme when ellip < 0.5. Both method are basically equivalent around ellip = 0.5 so it should be a pretty smooth transition. What do you think about that?

I agree for the initialization it is fine to just keep it since its more the optimization that encounters the issue.

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Thanks for your patience. I have been occupied by job searching these days. I will try to get to it in Jan. 2024.

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@hgao-astro Good luck with your job search! I look forward to hearing from you in the new year!

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