Tag Archive for: EASI

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

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

 

Script to generate a PIX file large enough to contain all input DEM files

Below is a simple EASI script used with the MODEL command in PCI will generate an output PIX file with extents large enough to contain all of the input files PIX files and then mosaic each of the input files into the output pix file. It was designed to mosaic several DEM files into one large DEM file.

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 DEM Mosaic Script
! [mul_DEM_mosaic.eas]

! Ted MacKinnon – tmackinnon.com
!
! This script will generate an output PIX file with extents large enough
! to contain all of the input files and then mosaic each of the input
! files into the new output pix file.
!
! This script was designed to mosaic several DEM files into one large
! DEM file. Each input DEM file must have the same projection,
! resolution and at each DEM should have at least 150m overlap.
!
! The user is expected that the user will enter (or verify) the parameters
! of ‘CIMPRO’ at the bottom of this script prior to running the script.
! Parmaters such as BXPXSZ and DBIC have been hard coded.

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

!for input & output pix files and pixel size

local string inputFile, outputFile
local string pixel

!to obtain list of input files
local mstring inputList
local integer inputIndex

!for extracting georeferencing information

local GeoInfo geoInfo
local integer geoFile

!to contain bounding rectangle of all input files

local double boundULX, boundULY, boundLRX, boundLRY

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

PRINT @(1 ,1,CLREOS)

print “———————————————————————–

print @reverse,” ‘Mosaic multiple DEM files’ EASI Script “,@alloff
print “”
print “”
print “”
print “———————————————————————–“
print “”
print ” This script will generate an new output PIX file with extents large “
print ” enough to contain all of the PIX files in this directory and then “
print ” mosaic each of the PIX files into the new output file.”
print “”
print ” The output file will contain the following projection: “
print “”

! The projection will be printed to the screen as a general reminder

print ” UTM 11 S E000″

print “”
print “———————————————————————–“
print “”

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

print “”
print “Enter the Output file name:”
input “>” outputFile
print “”

print “Enter the pixel size for: “,outputfile

input “>” pixel

print “”
print “”

PRINT @(1 ,1,CLREOS)

!—————————————————————————-
! Create list of input files
!—————————————————————————-

sys “dir *.pix /b > pixlist.txt”

inputList = Text$Import(“pixlist.txt”)

!—————————————————————————
! Read georeferencing of each input file
!—————————————————————————-

for inputIndex = 1 to F$LEN(inputList)

print inputList(inputIndex)

geoFile = DBOpen(inputList(inputIndex), “r”)
call DBReadGeoInfo(geoFile, geoInfo)
call DBClose(geoFile)

print “Georeferencing: “, geoInfo.Units
print “Image extents: “,geoInfo.ULX, “, “, geoInfo.ULY, ” “, geoInfo.LRX, “, “, geoInfo.LRY

PRINT @(1 ,1,CLREOS)

!————————————————————————-
! initialize bounds using first file
!————————————————————————-

if inputIndex = 1 then

boundULX = geoInfo.ULX
boundULY = geoInfo.ULY
boundLRX = geoInfo.LRX
boundLRY = geoInfo.LRY

else

!———————————————————————–
! assumes UTM projection (ULY > LRY)
!———————————————————————–

if geoInfo.ULX < boundULX then
boundULX = geoInfo.ULX

endif

if geoInfo.ULY > boundULY then

boundULY = geoInfo.ULY

endif

if geoInfo.LRX > boundLRX then

boundLRX = geoInfo.LRX

endif

if geoInfo.LRY < boundLRY then
boundLRY = geoInfo.LRY

endif

endif

print “”

endfor

print outputFile, ” file extents: “, boundULX, ” “, boundULY, ” “, boundLRX, ” “, boundLRY

!—————————————————————————-
! create the output PIX file containing bounds
!—————————————————————————-

FILE = outputFile
TEX1 =

!Specify the # of channels here

DBNC = 1,0,0,0
DBLAYOUT = “PIXEL”

!Specify the projection info here

PROJECT = “UTM”
ZONE = 11
ROW = “S”
ELLIPS = “0”
LLBOUND = “N”

ULX = F$STRING(boundULX)
ULY = F$STRING(boundULY)
LRX = F$STRING(boundLRX)
LRY = F$STRING(boundLRY)
BXPXSZ = pixel
BYPXSZ = pixel
REPORT = “TERM”

run CIMPRO

!—————————————————————————-
! Mosaic each PIX file from the listing into the outputfile
!—————————————————————————-

inputList = Text$Import(“pixlist.txt”)

for inputIndex = 1 to F$LEN(inputList)

inputFile = inputList(inputIndex)

!————————————————————————–
! Clear the EASI window and show progress
!————————————————————————–

PRINT @(1 ,1,CLREOS)

print “”
print “Mosaicking “, inputFile, ” into “, outputFile
print “”

FILI = inputFile
DBIC = 1
DBVS =
DBLUT =
FILO = outputFile
DBOC = 1
BLEND =
BACKVAL = 0

run MOSAIC

endfor
!—————————————————————————-
!—————————————————————————-