- sherpa.astro.ui.image_source(id=None, newframe=False, tile=False)
Display the source expression for a data set in the image viewer.
This function evaluates and displays the model expression for a data set, without any instrument response.
The image viewer is automatically started if it is not already open.
id (int or str, optional) – The data set. If not given then the default identifier is used, as returned by
newframe (bool, optional) – Create a new frame for the data? If
False, the default, then the data will be displayed in the current frame.
tile (bool, optional) – Should the frames be tiles? If
False, the default, then only a single frame is displayed.
sherpa.utils.err.IdentifierErr – If the data set does not exist or a source expression has not been set.
Return the data used by image_source.
Close the image viewer.
Display the data, model, and residuals for a data set in the image viewer.
Display the model for a data set in the image viewer.
Display a component of the model in the image viewer.
Open the image viewer.
Display a component of the source expression in the image viewer.
Image visualization is optional, and provided by the DS9 application.
Display the source model for the default data set.
Display the source model for data set 2 in a new frame so that the data in the current frame is not destroyed. The new data will be displayed in a single frame (i.e. the only data shown by the viewer).
>>> image_source(2, newframe=True)
Display the source models for data sets ‘i1’ and ‘i2’ side by side:
>>> image_source('i1') >>> image_source('i2', newframe=True, tile=True)