image_setregion¶
-
sherpa.ui.
image_setregion
(reg, coord='')¶ Set the region to display in the image viewer.
- Parameters
reg (str) – The region to display.
coord (str, optional) – The coordinate system to use.
- Raises
sherpa.utils.err.DS9Err – Invalid coordinate system.
See also
image_getregion()
Return the region defined in the image viewer.
image_xpaget()
Return the result of an XPA call to the image viewer.
image_xpaset()
Send an XPA command to the image viewer.
Examples
Add a circle, in the physical coordinate system, to the data from the default data set:
>>> image_data() >>> image_setregion('circle(4234.53,3245.29,46.74)', 'physical')
Copy the region from the current frame, create a new frame displaying the residuals from data set ‘img’, and then display the region on it:
>>> r = image_getregion() >>> image_resid('img', newframe=True) >>> image_setregion(r)