PCI geomatics

Multiple File Subset Script – PCI EASI Script

This simple EASI script used with the MODEL command in PCI will batch subset a directory of input files based on a defined input window. It assumes that all the input files will all be located within the same specified directory, all the files will be of the same format with three channels and that the output directory does not already contain any files.

This was originally created for PCI Geomatica v9.1 but was last tested and working with no problems in PCI Geomatica v10.0 – Just copy the code below into a blank text file and edit as needed.

!—————————————————————————-
!—————————————————————————-
! Multiple File Subset Script [mul_subset.eas]
!
! This script was originally written for a user who wanted
! to have all of the fiducial marks and details removed from
! their air photos.
!
! This script assumes that all the input files will all be located
! within a given directory, all the files will be of the same format
! with three channels and that the output directory does not contain
! any files.
!
!—————————————————————————-

! Define variables
!—————————————————————————-

!for input and output directory local string in_files, out_files
!for directory listing of the input directories

local mstring dirlist

!for the file format and extension types

local string type, ext

!file names

local string bn, fn

!Parameters for the subset window

local integer x, y, width, height

local integer i

local $Z

local string confirm

!—————————————————————————-
! Clear the EASI window and then show the header information
!—————————————————————————-

PRINT @(1 ,1,CLREOS)

print “——————————————————————-“

print @reverse,” Multiple Subset “,@alloff

print “”
print “This script assumes that all the input files will all be located”
print “within a given directory, the files will be of the same format,”
print “have three image channels, will be clipped to the same extents and”
print “that the output directory will not contain any files.”

print “”

print “——————————————————————-“

!—————————————————————————-
! Collect input from user
!—————————————————————————-

print “”

print “Enter the directory that contains the input files:”

input “>” in_files

print “”

print “Enter the directory for the output files:”

input “>” out_files

print “”

print “Enter the file format of the files (3-letter file extension) : “

input “>” type

print “”
print “Enter the X coordinate for the dbiw parameter : “

input “>” x

print “”
print “Enter the Y coordinate for the dbiw parameter : “

input “>” y

print “”
print “Enter the width for the dbiw parameter : “

input “>” width

print “”
print “Enter the height for the dbiw parameter : “

input “>” height

print “”

PRINT @(1 ,1,CLREOS)

!—————————————————————————-
! Confirm with user to ensure that the parameters are correct
! If they are correct then continue with the script and if they are not
! then run the script over again.
!—————————————————————————-

print “—————————————————————————–“
print “”
print “The input directory you specified was:”

print ” “, in_files

print “”

print “The output directory you specified was:”

print ” “, out_files

print “”

print “The file format you specified was:”

print ” “, type

print “”

print “The initial coordinate of the clip you specified was:”

print ” “, x, ” “, y

print “”

print “Your image size you specified was:”
print ” “, width, ” “, height
print “”
print “—————————————————————————–“

print “Are these parameters correct? (Y/N)”

print “”

input “>” confirm

if (confirm ~= “y” or confirm ~= “Y” ) then

!——————————————————————-
! Get the contents of the directory
!——————————————————————-

dirlist = getdirectory(in_files)

let $Z = “\

for i = 1 to f$len(dirlist)

!——————————————————————-
! Extract parts of the filenames
!——————————————————————-

fn = in_files + $Z + dirlist[i]

ext = getfileextension(fn)

bn = getfilebasename(fn)

if (ext ~= type) then

print “”

print “Clipping:”, bn, “.”, ext

print “”

!——————————————————————-
! Set up the parameters and execute the FEXPORT command
!——————————————————————-

fili = in_files + $Z + dirlist[i]
filo = out_files + $Z + bn +”_clipped”
dbiw = x, y, width, height
dbic = 1,2,3
dbib =
dbvs =
dblut =
dbpct =
ftype = type
foptions =

R Fexport

PRINT @(1 ,1,CLREOS)

endif

endfor

else

run “mul_subset.eas

endif

PRINT @(1 ,1,CLREOS)

print “——————————————————————-“
print “”
print “The clipped files are stored in the following directory:”
print ” “, out_files
print “”
print “”

print @reverse,” Multiple Subset EASI Script Finished “,@alloff

print “”
print “——————————————————————-“

return

!—————————————————————————-
!—————————————————————————-

 

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