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Last modified: December 2010

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AHELP for CIAO 4.3 Sherpa v1


Context: modeling


Sends image of the convolved model component to ds9.


image_model_component([id], name, [newframe=False, tile=False]] )


The image_model_component command sends an image of one, or a combination of, individual 2D source model components to the imager (ds9) to allow the user to quickly visualize the contribution to the full model being used to fit the data. The model components will be convolved with any assigned PSF convolution models; the image_source_component command is available for displaying unconvolved model components. By default, the image is sent to the same frame and the frames are not tiled.

  • id - the id of the data set to use; if not given, uses the default dataset id (id=1 by default, see "ahelp get_default_id")
  • name - variable name representing the model component
  • newframe - add a new frame; default=False
  • tile - tile image frame; default=False


sherpa> load_psf("psf0","psf.fits")
sherpa> set_psf("psf0")
sherpa> set_model(const2d.c1 + gauss2d.g1 + beta2d.b1)
sherpa> fit()
sherpa> image_model_component(g1)
sherpa> image_model_component(b1, newframe=True, tile=True)

Send separate, tiled images of the PSF-convolved Gaussian 2D and Beta 2D model components "g1" and "b1" (assigned to default data set 1) to the same DS9 window with the image_model_component command.


See the bugs pages on the Sherpa website for an up-to-date listing of known bugs.

See Also

get_bkg_plot, load_image, pack_image, unpack_image
list_model_ids, show_bkg_model, show_bkg_source
add_model, add_user_pars, clean, create_model_component, delete_bkg_model, delete_model, delete_model_component, get_model, get_model_autoassign_func, get_model_component, get_model_component_image, get_model_component_plot, get_model_plot, get_num_par, get_order_plot, get_par, get_pileup_model, get_source, get_source_component_image, get_source_component_plot, image_model, image_source, image_source_component, integrate, link, load_table_model, load_user_model, reset, save_model, save_source, set_bkg_model, set_full_model, set_model_autoassign_func, set_pileup_model, set_source, set_xsabund, set_xscosmo, set_xsxsect, set_xsxset
plot_model, plot_model_component, plot_source, plot_source_component
delete_psf, image_kernel, load_conv
save_delchi, save_resid
calc_chisqr, calc_energy_flux, calc_model_sum, calc_photon_flux, calc_source_sum, calc_stat, eqwidth
contour, contour_data, contour_model, contour_ratio, contour_resid, get_ratio, get_resid, image_close, image_data, image_deleteframes, image_fit, image_getregion, image_open, image_ratio, image_resid, image_setregion, image_xpaget, image_xpaset

Last modified: December 2010
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