Contents of  V. Grechnev's IDL Library GRLIB
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Data visualization
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TVCON - Displays an image in the brightness representation 
surrounded with coordinate axes to fit current graphics device 
(TV + CONgrid). Similar to the standard routine IMAGE_CONT, but 
without contours, and allows various keyword parameters.

IM_CON_TOG - Displays one 2-dimensional array in brightness 
representation together with another one in contours (IMage and 
CONtour TOGether)

MAGPOWER() - Non-linear (power-law) display of image

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Interactive data analyses
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CURSORPOS() - Read the value of the pixel under the cursor. 
Display X,Y under the cursor in the graphic window

RDPIXG - Read the value of the pixel under the cursor, display 
X,Y and the pixel value under the cursor, interactively display 
the X and Y positions as well as the pixel value of the cursor. 
Modification of the standard routine RDPIX.

TIMEPROF - Interactively plots profile of a 3-dimensional array 
along the third dimension through the pixel where the cursor is 
currently placed. The profile is displayed in a separate window.
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Noninteractive data analyses
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PEAK_COORD() - Measurement of coordinates of the pixel which has 
the maximal value in a 2-dimensional array or in each of slices 
in a 3-dimensional array. 

TOTAL_FLUX() - Returns vector of totals over each frame in 3-
dimensional array. When both pixel_size and frequency are 
specified, the output value is expressed in Solar Flux Units.

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Input/Output
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READFORM() - Performs formatted reading of string-type array from 
an ASCII file.

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Multiple Reading of FITS files 
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RD_FHEAD() - Performs reading headers from several FITS files

MSXPAR() - Performs reading values of parameter in the array of 
some file headers