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Question about slit feature in Cuts

See original GitHub issue

I see some similar controls between “slit” in Cuts and LineProfile. When do I use “slit” and when do I use LineProfile? Why aren’t they in the same plugin?

Also, starting Cuts with “slit” enabled, I see the following:

Error making callback 'value-changed': 'Cuts' object has no attribute 'save_slit'
Traceback:
  File ".../ginga/misc/Callback.py", line 123, in make_callback
    res = method(*cb_args, **cb_kwdargs)

  File ".../ginga/rv/plugins/Cuts.py", line 978, in width_radius_changed_cb
    self.replot_all()

  File ".../ginga/rv/plugins/Cuts.py", line 675, in replot_all
    self.save_slit.set_enabled(False)

Then, while using it, I see more:

Error making callback 'value-changed': wrapped C/C++ object of type QPushButton has been deleted
Traceback:
  File ".../ginga/misc/Callback.py", line 123, in make_callback
    res = method(*cb_args, **cb_kwdargs)

  File ".../ginga/rv/plugins/Cuts.py", line 978, in width_radius_changed_cb
    self.replot_all()

  File ".../ginga/rv/plugins/Cuts.py", line 675, in replot_all
    self.save_slit.set_enabled(False)

  File ".../ginga/qtw/Widgets.py", line 47, in set_enabled
    self.widget.setEnabled(tf)

Error making callback 'activated': 'New Cut'
Traceback:
  File ".../ginga/misc/Callback.py", line 123, in make_callback
    res = method(*cb_args, **cb_kwdargs)

  File ".../ginga/rv/plugins/Cuts.py", line 370, in <lambda>
    lambda w, tf: self.axis_toggle_cb(w, tf, pos))

  File ".../ginga/rv/plugins/Cuts.py", line 1032, in axis_toggle_cb
    self._plot_slit()

  File ".../ginga/rv/plugins/Cuts.py", line 649, in _plot_slit
    obj = self.canvas.get_object_by_tag(self.cutstag)

  File ".../ginga/canvas/CanvasMixin.py", line 93, in get_object_by_tag
    obj = self.tags[tag]

Issue Analytics

State:
Created 6 years ago
Comments:24 (13 by maintainers)

Top GitHub Comments

1reaction

ejeschkecommented, May 4, 2017

@pllim, I believe this is fixed in commit 8b7a1d0696a6c7d8bcb6c8d28b8d1ef70a38b7c8.

1reaction

nabobaliscommented, May 4, 2017

The orignal idea was that a slit would be a spatial cut that outputs a space/time image and the line profile would see how wavelength varies at a single pixel.

I think the orignal plan was to make slit able to cut arbitrary axes to produce any possible combination required by the user, but I can not remember if we got to that. So LineProfile was born to achieve the second aim.

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