image_setregion
- sherpa.ui.image_setregion(reg, coord='')
Set the region to display in the image viewer.
- Parameters:
- 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)