useful commands mostly (all) written by ingrid
lhsu (questions? ask me)
Last modified 05 jun 2005

may be found in $OUR_SRC

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apply_mask_byte
---------------
run after snaphu to mask out areas below the threshold. 

Usage:
  apply_mask_byte [unwfile.unw] [mask.msk] [output.unw] [width] 0

Example:
  apply_mask_byte filt_970726-980815-sim_PRC_4rlks_c10.unw  
                 filt_970726-980815-sim_PRC_msk_4rlks_c10.msk  
                 total_970726-980815_4rlks.unw
                 1578
                 0

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cpx2rmg
-------
turn a complex file into an rmg file.  useful for converting an
unwrapped interferogram


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dgx.pl
------
use to view .int files


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dxf2gmtlin
----------
create a gmt file that can be overlayed in plot_phase

USAGE:
dxf2gmtlin *.dxf > *.gmtlin

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enviheader.pl
-------------
run this before opening a newly created file (interf, for example) in
envi.  it automatically creates a headerfile with the proper file dimensions. 

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extract_geo.pl
--------------
use to crop a geocoded image.  works for UTM, not sure for lat/lon.

USAGE:
extract_geo.pl infile outfile x y x y 

extract_geo.pl geo_970726-980815crop.unw geo_970726-980815cchi.unw 305003 2564420 322381 2543269

----------------------
extract_geo_profile.pl
----------------------
use to create a text file that lists distance between two geocoded
points and corresponding phase value, swath width variable (in 
pixels)

USAGE:
extract_geo_profile.pl geo_in geo_out X1 Y1 X2 Y2 Swath

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img_frac.pl
-----------
determine the fraction unwrapped (sort of like a measure of how
coherent the scene is)

---
lsk
---
ls in chronological order

---
lsm
---
similar to lsk, but different.

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makecpt
-------
make a customized colortable
type "makecpt" to see the list of available standard colortables
 
  USAGE: makecpt -C[colortablename] -T[min]/[max]/[step] -Z > [newname].cpt
   -z flag smooths it

   "polar" is blue to white to red
   "rainbow"

edit the file for B,F,N to change the endpoints and middle value

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plot_mag.pl
-----------
same as plot_phase.pl but plots the magnitude (band1)

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plot_phase.pl
-------------
make a .ps and .gif of the phase component (2) of an interferogram, with 
georeference marks and scalebar

append gmtlin files to the end for overplotting

USAGE:



------
snaphu
------
super unwrapper

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stack.pl
--------
stack scenes to average the signal and try to get rid of atmospheric
effects

note: use extract_geo.pl first to make sure all components are exactly the
same size

USAGE:
stack.pl outfile AND years image1 image2

EXAMPLE: