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AstarVienna / ScopeSim

A telescope observation simulator for Python.
GNU General Public License v3.0
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IMG_4mas mode shows weird discontinuity with cross patterns #174

Open yixiancao opened 1 year ago

yixiancao commented 1 year ago

In the 4mas mode, all images (except DARK) show weird discontinuity with cross patterns.
Below is the Flat image, and these patterns persist for all the other illuminated images.
image Another example is a zoomed in image of a stellar field in seeing limited case. The image is discontinuous at the crosses. image

The full simulation data set is at https://nextcloud.mpe.mpg.de/nextcloud/s/PJ4xd47Tb24gLR9, including the notebooks generating it.

hugobuddel commented 1 year ago

This is probably the same bug that causes the discontinuity that can be seen in https://github.com/AstarVienna/irdb/blob/dev_master/MICADO/docs/example_notebooks/7_dithered_cluster.ipynb

This might be related to the off-by-one error that also caused #111 and that can also be seen in https://github.com/AstarVienna/irdb/blob/dev_master/MICADO/docs/example_notebooks/2_scopesim_SCAO_1.5mas_astrometry.ipynb and

Thanks for the notebooks. Perhaps a good first step is to try to see whether we can reproduce the issue with earlier ScopeSim versions or whether the problem has always been there.

teutoburg commented 5 months ago

Does this still occur as of v0.8.0?