GSFITVIEW Help: Difference between revisions

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GSFITWIEW is part of the GSFIT IDL Package
GSFITWIEW is part of the GSFIT IDL Package


'''To get installation instructions for the IDL GSFIT package, please follow [[[GSFIT Installation]] this link][http://www.ovsa.njit.edu/wiki/index.php/EOVSA_Data_Analysis_Tutorial#GSFIT_Installation_on_Your_Own_Machine this link]'''
'''To get installation instructions for the IDL GSFIT package, please visit the [[GSFIT Installation]] page.


==Launching the GSFITVIEW GUI Application==
==Launching the GSFITVIEW GUI Application==
Line 28: Line 28:
===[[File:open.png|border]] Upload GSFIT Parameter Map Cube===
===[[File:open.png|border]] Upload GSFIT Parameter Map Cube===
Use this button to restore an IDL ''*.sav'' containg a GSFIT Parameter Map Cube structure exported from GSFIT.
Use this button to restore an IDL ''*.sav'' containg a GSFIT Parameter Map Cube structure exported from GSFIT.
An example of such IDL structure is described below
To learn more about this type structure and how it may be restored outside the GSFITVIEW application for command line or programmatic manipulation, please visit [[GSFIT Data Format]].
 
<pre>
IDL> help, maps
** Structure <1e0e3430>, 28 tags, length=189883336, data length=189666533, refs=1:
  FITMAPS        STRUCT    -> <Anonymous> Array[30, 100]      ;[nfreq x ntimes] GSFIT solution maps
  DATAMAPS        STRUCT    -> <Anonymous> Array[30, 100]      ;[nfreq x ntimes] input data maps use to compute the GSFIT solutions
  ERRMAPS        STRUCT    -> <Anonymous> Array[30, 100]      ;[nfreq x ntimes] input error maps used to weight the input data
  N_NTH          STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of estimated nonthermal electron densities
  ERRN_NTH        STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of 1-sigma fit errors of the estimated nonthermal electron densities
  B              STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of estimated absolute magnetic field strength
  ERRB            STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of 1-sigma fit errors of the estimated
  THETA          STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of estimated LOS angle of the magnetic field vector
  ERRTHETA        STRUCT    -> <Anonymous> Array[100]           ;[ntimes] maps of 1-sigma fit errors of the estimated LOS angle of the magnetic field vector
  N_TH            STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of estimated thermal electron densities
  ERRN_TH        STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of 1-sigma fit errors of the estimated thermal electron densities
  DELTA          STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of estimated distribution over energy power law slope
  ERRDELTA        STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of 1-sigma fit errors of the estimated distribution over energy power law slope
  E_MAX          STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of estimated maximum energy cutoff of nonthermal electrons
  ERRE_MAX        STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of 1-sigma fit errors of the estimated maximum energy cutoff of nonthermal electrons
  T_E            STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of estimated plasma temperature
  ERRT_E          STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of 1-sigma fit errors of the estimated plasma temperature
  CHISQR          STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of fit CHISQR
  RESIDUAL        STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of fit Residuals
  PEAKFLUX        STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of estimated peak flux of the fit solution
  ERRPEAKFLUX    STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of 1-sigma fit errors of the estimated peak flux of the fit solution
  PEAKFREQ        STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of estimated peak frequency of the fit solution
  ERRPEAKFREQ    STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of 1-sigma fit errors of the estimated peak frequency of the fit solution
  WB              STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps estimated magnetic field energy
  ERRWB          STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of 1-sigma fit errors of the estimated magnetic field energy
  WNTH            STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps estimated nonthermal electron energy
  ERRWNTH        STRUCT    -> <Anonymous> Array[100]          ;[ntimes] maps of 1-sigma fit errors of the estimated nonthermal electron energy
  HEADER          STRUCT    -> <Anonymous> Array[1]            ;structure containing information about the GSFIT solutions from which these maps were created
</pre>
 


===[[File:RestoreROI.png|border]] Import Fit List===
===[[File:RestoreROI.png|border]] Import Fit List===
Use this button to restore a native GSFIT/GSFITCP ''*.log'' file containg a list of pixel fit solutions saved in this format by GSFIT, or sequentially logged into by GSFITCP at runtime.
Use this button to restore a native GSFIT ''*.log'' file containing a list of pixel-based fit solutions saved in this format by GSFIT, or sequentially logged into by GSFITCP at runtime. To learn more about this type structure and how it may be restored outside the GSFITVIEW application for command line or programmatic manipulation, please visit [[GSFIT Data Format]].
NOTE: Although such GSFIT/GSFITCP may appear to be traditional IDL ''*.sav'', attempting to restore them via IDL command line using the native '''''RESTORE''''' procedure would only recover the first record logged in the file. To recover the full information stored in such files one may use one of the two support routines that are part of the GSFIT package
===[[File:color.png|border]] Select Color Table===
 
Use this button to select a color table for displaying the microwave maps and spectra. GSFITVIEW uses as default the IDL color table #39 (Rainbow+White)
<pre>
IDL> fitlist=gsfit_log2list('gsfitcp.log')
% Compiled module: MULTI_RESTORE.
% RESTORE: Portable (XDR) SAVE/RESTORE file.
% RESTORE: Save file written by gnita@baozi.hpcnet.campus.njit.edu, Fri Mar  1 18:15:09 2019.
% RESTORE: IDL version 8.5 (linux, x86_64).
% RESTORE: Restored variable: HEADER.
% RESTORE: Restored variable: TEMPLATE.
% RESTORE: Restored variable: HINT.
% RESTORE: Restored variable: KEY.
% RESTORE: Restored variable: XDR.
% GSFIT_LOG2LIST: Restoring 409599 additional records
IDL> help,fitlist
FITLIST        STRUCT    = -> <Anonymous> Array[409600]
IDL> help,fitlist,/str
** Structure <21fed180>, 24 tags, length=504, data length=504, refs=2:
  X              LONG                67
  Y              LONG                42
  T              LONG                0
  FMIN            INT              0
  FMAX            INT            23
  DATA            FLOAT    Array[30]
  ERRDATA        FLOAT    Array[30]
  SPECFIT        FLOAT    Array[30]
  N_NTH          DOUBLE          0.00000000
  ERRN_NTH        DOUBLE          0.00000000
  B              DOUBLE          0.00000000
  ERRB            DOUBLE          0.00000000
  THETA          DOUBLE          0.00000000
  ERRTHETA        DOUBLE          0.00000000
  N_TH            DOUBLE          0.00000000
  ERRN_TH        DOUBLE          0.00000000
  DELTA          DOUBLE          0.00000000
  ERRDELTA        DOUBLE          0.00000000
  E_MAX          DOUBLE          0.00000000
  ERRE_MAX        DOUBLE          0.00000000
  T_E            DOUBLE          0.00000000
  ERRT_E          DOUBLE          0.00000000
  CHISQR          DOUBLE          0.00000000
  RESIDUAL        DOUBLE          0.00000000
</pre>


<pre>
IDL> maps=gsfit_log2map(file)
% RESTORE: Portable (XDR) SAVE/RESTORE file.
% RESTORE: Save file written by gnita@baozi.hpcnet.campus.njit.edu, Fri Mar  1 18:15:09 2019.
% RESTORE: IDL version 8.5 (linux, x86_64).
% RESTORE: Restored variable: HEADER.
% RESTORE: Restored variable: TEMPLATE.
% RESTORE: Restored variable: HINT.
% RESTORE: Restored variable: KEY.
% RESTORE: Restored variable: XDR.
% GSFIT_LOG2LIST: Restoring 409599 additional record


IDL> help,map
===[[File:RefMaps.png|border|40px]] Upload Reference Maps===
** Structure <1fe1b690>, 28 tags, length=189883336, data length=189666533, refs=1:
Use this button to upload one ore more reference SSW IDL maps from an IDL ''*.sav'', to use them as background maps or overlaid contours in the Data or Fit Parameter maps plot panels.
  FITMAPS        STRUCT    -> <Anonymous> Array[30, 100]
  DATAMAPS        STRUCT    -> <Anonymous> Array[30, 100]
  ERRMAPS        STRUCT    -> <Anonymous> Array[30, 100]
  N_NTH          STRUCT    -> <Anonymous> Array[100]
  ERRN_NTH        STRUCT    -> <Anonymous> Array[100]
  B              STRUCT    -> <Anonymous> Array[100]
  ERRB            STRUCT    -> <Anonymous> Array[100]
  THETA          STRUCT    -> <Anonymous> Array[100]
  ERRTHETA        STRUCT    -> <Anonymous> Array[100]
  N_TH            STRUCT    -> <Anonymous> Array[100]
  ERRN_TH        STRUCT    -> <Anonymous> Array[100]
  DELTA          STRUCT    -> <Anonymous> Array[100]
  ERRDELTA        STRUCT    -> <Anonymous> Array[100]
  E_MAX          STRUCT    -> <Anonymous> Array[100]
  ERRE_MAX        STRUCT    -> <Anonymous> Array[100]
  T_E            STRUCT    -> <Anonymous> Array[100]
  ERRT_E          STRUCT    -> <Anonymous> Array[100]
  CHISQR          STRUCT    -> <Anonymous> Array[100]
  RESIDUAL        STRUCT    -> <Anonymous> Array[100]
  PEAKFLUX        STRUCT    -> <Anonymous> Array[100]
  ERRPEAKFLUX    STRUCT    -> <Anonymous> Array[100]
  PEAKFREQ        STRUCT    -> <Anonymous> Array[100]
  ERRPEAKFREQ    STRUCT    -> <Anonymous> Array[100]
  WB              STRUCT    -> <Anonymous> Array[100]
  ERRWB          STRUCT    -> <Anonymous> Array[100]
  WNTH            STRUCT    -> <Anonymous> Array[100]
  ERRWNTH        STRUCT    -> <Anonymous> Array[100]
  HEADER          STRUCT    -> <Anonymous> Array[1]
</pre>
 
===[[File:color.png|border]] Select Color Table===
Use this button to select a color table for displaying the microwave maps and spectra. GSFITVIEW uses as default the IDL color table #39 (Rainbow+White)


===[[File:mousemode.png|border]]Select Mouse Mode===
===[[File:mousemode.png|border]]Select Mouse Mode===
Line 172: Line 54:
===[[File:RestoreROI.png|border]]Restore ROI===
===[[File:RestoreROI.png|border]]Restore ROI===
Use this button to import from an IDL file a set of xroi and yroi ROI vertex coordinates previously saved by GSFIT or GSFITVIEW, or generated by alternative means.
Use this button to import from an IDL file a set of xroi and yroi ROI vertex coordinates previously saved by GSFIT or GSFITVIEW, or generated by alternative means.
===[[File:SaveFile.png|border]]Save Histogram Data===
Use this button to save the currently displayed histogram data to an IDL ''*.sav'' file.
===[[File:Plot.png|border]]Plot Histogram to Postscript File===
Use this button to plot the currently displayed parameter histogram to a PostScript file.
==Data and Parameter Maps Display Panels, and related options controls==
GSFTIVIEW uses a pair of panels to display in a synchronized manner the data and parameter maps  selected by the user. The user is also provided with a series of input fields that control the appearance of these plots. 
<gallery widths=1000px heights=700px>
File:GSFITVIEWmaps.png|GSFITVIEW Map Display Panels: '''Left Panel:''' EOVSA 7.42 GHz 4-Sep-2017 20-44:44.500 UT. '''Right Panel:''' GSFIT DELTA parameter map. On both panels, the white-solid RHESSI 20-80 keV 10% contours are shown shifted relative to their original position by the user-defined '''''xshift''''' and '''''yshift''''' input parameters displayed at the bottom of the right panel. The coordinates of the particular pixel selection marked by the pair of horizontal and vertical dotted lines are displayed in the '''''Cursor X''''' and '''''Cursor Y''''' fields located below the left panel, the values of which may be controlled either by direct keyboard input, or by right-button mouse click when in the Cursor Mode.  A user-defined ROI box is also shown by the red solid rectangles overlaid on both plots.
</gallery>
===Data Map Display Panel===
In this left-side panel, the user may choose to display one of the [<math>nfreq\times ntimes</math>] maps generated by GSFIT (see [[ GSFIT Data Format]] for a description of the GSFIT input and output map data formats):
*DATAMAPS, which represent the GSFIT input microwave maps from which the parameter maps were derived
*ERRMAPS, which represent the errors used by GSFIT to weight the spectral fits (see [[GSFIT_Help]] for a detailed description of how these errors are estimated).
*FITMAPS, which represent the pixel-based GSFIT spectral-shape solutions.
The selection of the map displayed in this panel may be made via the drop list menu and the frequency and time selection scrollbars.
===Parameter Map Display Panel===
===Reference Maps Options===
In addition, the user may choose, via a dedicated drop list menu, to display a contextual reference map, in both left and right panels.  The selected reference map may be displayed either as a background map, or as a one-level contour, as chosen through the combination of options provided by the '''''Show''''' checkmark, '''''Background/Contour''''' radio buttons, and '''''Level''''' percentage . By default, the list of available choices contains two options, namely '''''Reference: Data''''' and '''''Reference: Parameter''''', which allow the use as reference maps of one of the currently maps displayed in either the left or right panel. In addition, the user may use the  [[File:RefMaps.png]] toolbar button to uploa and add to the reference list any number of contextual maps produced by other instruments.
==Spectral Fit and Parameter Time Profile Plot Panels, and related options controls==
[[File:GSFITVIEWplots.png|1000px]]
==Parameter Histogram Plot Panel and related options controls==
GSFITVIEW uses this panel to display statistical information about the selected fit parameters, either as a 2D dynamic histogram image that packs on the horizontal axes the 1D parameter distributions corresponding to each individual time frame, or as a 1D histogram in which all time frames are combined, if the '''1D''' checkmark is set. The default minimum and maximum parameter values used to build these histograms, as well as the number of bins, may be controlled through the input fields located below the histogram plot area. GSFIT uses as default histogram range the full parameter range, however, if a diffrent range set by the user, it is stored in memory for the duration of the GSFITVIEW session and used as default value every time the same parameter is selected for display.
In addition, the following options may be selected through additional checkmarks:
*'''OutROI:''' If this option is unchecked (default),  GSFITVIEW builds the histograms using only the pixels located inside the current ROI contour (if any defined). If this option is checked, only the pixels outside the ROI contour are used If no ROI contour is defined, all parameter map pixels are used, regardless this checkmark selection. 
*'''LogBins:''' use this checkmark to use logarithmic histogram bins instead of the default linear bins
*'''LogHist:''' use this checkmark to display the 1D histograms using logarithmic vertical scale.
*'''Over2D''', to overpot the fit parameter lightcurve and its associated 1-sigma uncertainties on top of the 2D histogram plot.
<gallery widths=500px heights=500px perrow=2>
Image:GSFITVIEWhist.png|'''a:'''DELTA fit parameter 2D dynamic histogram corresponding to the selected ROI pixels. The time evolution of the DELATA values corresponding to the selected pixel are overlaid as white symbols and error bars.
Image:GSFITVIEWhist1D.png|'''b:'''DELTA fit parameter 1D histogram (all time frames included) corresponding to the selected ROI pixels. 
Image:GSFITVIEWouthist.png|'''c:'''DELTA fit parameter 2D dynamic histogram corresponding to the pixels not included n the selected ROI area. The time evolution of the DELATA values corresponding to the selected pixel are overlaid as white symbols and error bars.
Image:GSFITVIEWouthist1D.png|'''d:'''DELTA fit parameter 1D histogram (all time frames included) corresponding to the pixels not included in the selected ROI area.
</gallery>
==Selected Fit Parameter Listing Panel==
This panel lists all fit parameters and their associated 1-sigma uncertainties for the currently selected pixel in the map display panel. If any of the fit parameters were fixed by the GASFIT user, the associated uncertainties are set to zero.
[[File:GSFITVIEWplist.png|400px]]

Latest revision as of 23:46, 13 May 2019

GSFITVIEW Installation

GSFITWIEW is part of the GSFIT IDL Package

To get installation instructions for the IDL GSFIT package, please visit the GSFIT Installation page.

Launching the GSFITVIEW GUI Application

The GSFITVIEW GUI application may be launched as follows

IDL> gsfitview [,gsfitmaps]

where the optional gsfitmaps argument is either the filename of an IDL *.sav file containg a GSFIT Parameter Map Cube structure produced by the GSFIT or GSFITCP applications, or an already restored such structure.

The GSFITVIEW GUI is organized as follows:

  • Menu Toolbar
  • Data Map Display Panel and related options controls
  • Fit Parameter Map Display Panel and related options controls
  • Spectral Fit Plot Panel and related options controls
  • Parameter Lightcurve Plot Panel and related options controls
  • Parameter Histogram Plot Panel and related options controls
  • Selected Fit Parameter Listing Panel

GSFITVIEW Menu Toolbar

The GSFITVIEW Menu Toolbar contain the following actionable elements:

Open.png Upload GSFIT Parameter Map Cube

Use this button to restore an IDL *.sav containg a GSFIT Parameter Map Cube structure exported from GSFIT. To learn more about this type structure and how it may be restored outside the GSFITVIEW application for command line or programmatic manipulation, please visit GSFIT Data Format.

RestoreROI.png Import Fit List

Use this button to restore a native GSFIT *.log file containing a list of pixel-based fit solutions saved in this format by GSFIT, or sequentially logged into by GSFITCP at runtime. To learn more about this type structure and how it may be restored outside the GSFITVIEW application for command line or programmatic manipulation, please visit GSFIT Data Format.

Color.png Select Color Table

Use this button to select a color table for displaying the microwave maps and spectra. GSFITVIEW uses as default the IDL color table #39 (Rainbow+White)


RefMaps.png Upload Reference Maps

Use this button to upload one ore more reference SSW IDL maps from an IDL *.sav, to use them as background maps or overlaid contours in the Data or Fit Parameter maps plot panels.

Mousemode.pngSelect Mouse Mode

Use this set of mutual exclusive radio buttons to switch between four modes of mouse tool operation. Due to the fact that the two map display area are synchronized, any mouse actions performed on any of the map plot areas are automatically replicated on the other one.

  • FOV/Pixel Selection Mode: Use this mouse mode to concomitantly zoom in and out the field of view (FOV) of the data and parameter maps, or to select the pixel coordinates for which the data spectrum and the GSFIT solution are displayed in the Spectral Fit panel.
    • To zoom in, press, hold, move, and release the left mouse button to select the desired rectangular FOV (rubber-band selection process). To revert to the full FOV, use a single left-button click on any of the two map plots.
    • Use a mouse right-click on any of the two map plots to make a pixel selection. The currently selected pixel is indicated by a set of horizontal and vertical dotted lines on both panels. Alternatively, the pixel may be selected using the Cursor X and Cursor Y numerical controls located below the data map plot area.
  • Rectangular ROI Selection Mode: Use this mouse mode to define a rectangular region of interest (ROI) through a left button rubber-band selection process. The selected ROI is preserved and displayed as long it is not replaced by another ROI selection, or deleted by a single left button click.
  • Polygonal ROI Selection Mode: Use this mouse mode to define the vertices of polygonal ROI through a series of sequential left button clicks. To finalize the process, use a right button click to define the last vertex, which will be automatically connected with the first one. The selected ROI is preserved and displayed as long it is not replaced by another ROI selection, or deleted by a single left button click.
  • Free-hand ROI Selection Mode: Use this mouse mode to define an arbitrarily shaped ROI contour through a continues movement of the mouse cursor while the left button is pressed. To finalize the process, release the left button to define the last vertex of the countour, which will be automatically connected with the first one. The selected ROI is preserved and displayed as long it is not replaced by another ROI selection, or deleted by a single left button click.

SetCountourROI.pngSet Contour ROI

Use this button to select as a ROI the user-defined contour overlaid on the data and parameter maps, if any.

SaveROI.pngSave ROI

Use this button to save to an IDL file the current ROI selection as a set of two arrays, xroi and yroi, containing its vertex heliocentric coordinates.

RestoreROI.pngRestore ROI

Use this button to import from an IDL file a set of xroi and yroi ROI vertex coordinates previously saved by GSFIT or GSFITVIEW, or generated by alternative means.

SaveFile.pngSave Histogram Data

Use this button to save the currently displayed histogram data to an IDL *.sav file.

Plot.pngPlot Histogram to Postscript File

Use this button to plot the currently displayed parameter histogram to a PostScript file.

Data and Parameter Maps Display Panels, and related options controls

GSFTIVIEW uses a pair of panels to display in a synchronized manner the data and parameter maps selected by the user. The user is also provided with a series of input fields that control the appearance of these plots.

Data Map Display Panel

In this left-side panel, the user may choose to display one of the [] maps generated by GSFIT (see GSFIT Data Format for a description of the GSFIT input and output map data formats):

  • DATAMAPS, which represent the GSFIT input microwave maps from which the parameter maps were derived
  • ERRMAPS, which represent the errors used by GSFIT to weight the spectral fits (see GSFIT_Help for a detailed description of how these errors are estimated).
  • FITMAPS, which represent the pixel-based GSFIT spectral-shape solutions.

The selection of the map displayed in this panel may be made via the drop list menu and the frequency and time selection scrollbars.

Parameter Map Display Panel

Reference Maps Options

In addition, the user may choose, via a dedicated drop list menu, to display a contextual reference map, in both left and right panels. The selected reference map may be displayed either as a background map, or as a one-level contour, as chosen through the combination of options provided by the Show checkmark, Background/Contour radio buttons, and Level percentage . By default, the list of available choices contains two options, namely Reference: Data and Reference: Parameter, which allow the use as reference maps of one of the currently maps displayed in either the left or right panel. In addition, the user may use the RefMaps.png toolbar button to uploa and add to the reference list any number of contextual maps produced by other instruments.

Spectral Fit and Parameter Time Profile Plot Panels, and related options controls

GSFITVIEWplots.png

Parameter Histogram Plot Panel and related options controls

GSFITVIEW uses this panel to display statistical information about the selected fit parameters, either as a 2D dynamic histogram image that packs on the horizontal axes the 1D parameter distributions corresponding to each individual time frame, or as a 1D histogram in which all time frames are combined, if the 1D checkmark is set. The default minimum and maximum parameter values used to build these histograms, as well as the number of bins, may be controlled through the input fields located below the histogram plot area. GSFIT uses as default histogram range the full parameter range, however, if a diffrent range set by the user, it is stored in memory for the duration of the GSFITVIEW session and used as default value every time the same parameter is selected for display.

In addition, the following options may be selected through additional checkmarks:

  • OutROI: If this option is unchecked (default), GSFITVIEW builds the histograms using only the pixels located inside the current ROI contour (if any defined). If this option is checked, only the pixels outside the ROI contour are used If no ROI contour is defined, all parameter map pixels are used, regardless this checkmark selection.
  • LogBins: use this checkmark to use logarithmic histogram bins instead of the default linear bins
  • LogHist: use this checkmark to display the 1D histograms using logarithmic vertical scale.
  • Over2D, to overpot the fit parameter lightcurve and its associated 1-sigma uncertainties on top of the 2D histogram plot.

Selected Fit Parameter Listing Panel

This panel lists all fit parameters and their associated 1-sigma uncertainties for the currently selected pixel in the map display panel. If any of the fit parameters were fixed by the GASFIT user, the associated uncertainties are set to zero.

GSFITVIEWplist.png