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O N - L I N E M A N U A L

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Copyright 1982 - 1999 by ERDAS, Inc. All rights reserved.

Printed in the United States of America.

ERDAS Proprietary - Delivered under license agreement.

Copying and disclosure prohibited without express written permission from ERDAS, Inc.

ERDAS, Inc.2801 Buford Highway, N.E.Atlanta, Georgia 30329-2137 USAPhone: 404/248-9000Fax: 404/248-9400User Support: 404/248-9777

WarningAll information in this document, as well as the software to which it pertains, is proprietary material of ERDAS, Inc., and issubject to an ERDAS license and non-disclosure agreement. Neither the software nor the documentation may be reproduced inany manner without the prior written permission of ERDAS, Inc.

Specifications are subject to change without notice.

TrademarksERDAS is a trade name of ERDAS, Inc. ERDAS and ERDAS IMAGINE are registered trademarks of ERDAS, Inc. ModelMaker, CellArray, ERDAS Field Guide, and ERDAS Tour Guides are trademarks of ERDAS, Inc. Other brands and productnames are trademarks of their respective owners.

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Session On-Line Manual

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ERDAS IMAGINE Icon Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Preference Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

How IMAGINE Reads Preference Files . . . . . . . . . . . . . . . . . . . . . . . . 10

Preference Editor (Old) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

How IMAGINE Reads Preference Files . . . . . . . . . . . . . . . . . . . . . . . . 12

CD-ROM Preferences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

UNIX Only. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Host. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Mount Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Device File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Host Preferences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

UNIX Only. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Number of Processors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Printer Preferences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

UNIX Only. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Printer Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17UNIX Only. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

CalComp Techjet Inkjet Plotter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

UNIX Only. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Print Queue Name. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Printer Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Queue Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Use Imagine Print Acclerator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Print Queue Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Local Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Output Directory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Output File. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Other Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Color Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Media Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

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Yellow Screen Angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Use a Mirrored Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Number of Copies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Color Intensity Level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

PostScript Printers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Unix Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Print Queue Name. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Printer Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Queue Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Use Imagine Print Acclerator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Print Queue Host . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Local Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Output Directory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Output File. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Other Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Color Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

PostScript Level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Media Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Media Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Media Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Horizontal Dot Density . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Vertical Dot Density . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Dot Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Total Horizontal Pixels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Total Vertical Pixels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Use a Mirrored Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Number of Copies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Color Intensity Level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Tape Drive Preferences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Tape Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Host. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Device File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Configuration Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Create new device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

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Create Print Queues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

UNIX Only. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Color Balance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

UNIX Only. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Calibration Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

UNIX Only. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

CMYK Breakpoint Numerical Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

UNIX Only. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Breakpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

UNIX Only. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

CMY Breakpoint Numerical Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

UNIX Only. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Session Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Session Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

UNIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Windows. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Coefficient of Variation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Session Command History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

UNIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Windows. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Process List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Log message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Batch Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Common Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Edit Replacement Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

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Multiple File Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Scheduled Batch Job List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Batch Job Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Job Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

ERDAS IMAGINE Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

WINDOWS Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

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ERDAS IMAGINE Icon Panel


This is the main icon panel that comes up when you start ERDAS IMAGINE. All functions inERDAS IMAGINE are launched from this icon panel or from the Viewer that also opens when

ERDAS IMAGINE is started. The actual icons that you see may not include all of those listed heredue the particular package of ERDAS IMAGINE you are using. Add-on modules may also displayicons that are not documented here. Icon size can be selected in the User Interface & Sessioncategory of the Preference Editor.

The words Session, Main, Tools, Utilities, and Help display on the icon panel menu bar. Theseare not icons, but rather pull-down menus that lead to the ERDAS IMAGINE Session Manager,IMAGINE tools, general utilities, and On-Line Help.

You can resize the icon panel by clicking and dragging any corner.

Session Click on the word Session and a menu of the Session Manager operations will

display. Session is not an iconit is opened only as a word.

Preferences ... The Preference Editor dialog is opened. The Preference Editor dialogcontrols many ERDAS IMAGINE parameters and defaults and can be used to customizeIMAGINE.

Configuration ... The Configuration Editor is opened and allows you to configureperipheral devices, such as tape drives, printers, CD-ROMS, etc., for use with ERDASIMAGINE.

Session Log ... A Session Log window is opened that reports ERDAS IMAGINEprocessing and error messages.

Active Process List... The Process List dialog is opened. This dialog displays a list ofthe IMAGINE processes that are currently running under this session. You can explicitlyterminate any of the processes by selecting them in the list and then clicking the Killbutton. This is very useful for toolkit users.

Commands ... The Session Command History window opens. This window displaysa list of the commands that have been issued during the current session. (The session logdisplays both commands and any sort of status information.) Also, commands may beentered into the lower window and executed. This is useful for testing commands duringscript development.

Enter Log message... The Log Message dialog is opened, where you can enter textto insert into the Session Log.

Start Recording Batch Commands... Click to start or stop batch mode. This functionlets you record one or more IMAGINE commands to be run at a later time. The BatchWizard opens.

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For step-by-step instructions on using the batch function, see the ERDAS IMAGINE TourGuides manual.

Open Batch Command File... Click to open a File Selector to choose an existing batchcommand file.

View Offline Batch Queue... Click and the Scheduled Batch Job List dialog isopened. This list lets you view, edit, or delete any jobs queued. It also lets you change theexecution time for the job.

Flip Icons The IMAGINE icon panel rearranges to be either in a horizontal orientationat the top of the screen or in a vertical orientation on the left side of the screen. Shiftingthe icons also performs a Clean Up of the screen.

Tile Viewers Click to rearrange the Viewers on the screen. This option is designed foruse when there are two or more Viewers open. It rearranges the Viewers so that none

overlap.

If you select this option with only one Viewer open, the Viewer will be resized to the fullscreen.

Close All Viewers All of the opened Viewers will close, but the IMAGINE icon panel willremain on the screen. If you have made any changes to your files, you will be promptedto save them.

Main This is a replication of the Main menu (described below) to provide access to thesefunctions when the main icon panel is vertically resized.

Tools This is a replication of the Tools menu (described below) to provide access tothese functions when the main icon panel is vertically resized.

Utilities This is a replication of the Utilities menu (described below) to provide accessto these functions when the main icon panel is vertically resized.

Help This is a replication of the Help button (described below) to provide access to thisoption when the main icon panel is vertically resized.

Properties... (Windows only) Click to open the ERDAS IMAGINE Properties dialog.This option provides access to your system ID, codewords, modules, and environmentvariables.

Exit IMAGINE... Left-hold to end the current ERDAS IMAGINE session. You are queriedonce before the IMAGINE session is terminated.

You can also quit IMAGINE by typing Ctl-Q with your cursor in any IMAGINE window.

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OrthoBASE... Click to open OrthoBASE. OrthoBASE is a digital photogrammetrypackage that allows for the fast and accurate triangulation and orthorectification of imagescollected from various types of cameras and satellite sensors. This is a separately-licensed add-on module for IMAGINE.

Tools Click to open a list of tools that provide viewing and editing of various text and imagefiles. Items in this list are generally useful throughout IMAGINE and are not associated withany specific module.

Edit Text Files... Click to open the IMAGINE text Editor, in which you can create andedit ASCII text files.

Edit Raster Attributes... Click to open the Raster Attribute Editor. In IMAGINE thereis a table of attributes associated with each raster layer. This table provides each pixelvalue with a set of attributes. These attributes may be viewed, edited, and analyzed withthe Raster Attribute Editor.

View Binary Data... Click to open the Data View dialog. The Dataview tool provides ameans of viewing the contents of binary files in a number of different ways. This is usefulwhen working with data of unknown formats.

View IMAGINE HFA File Structure... Click to open the HfaView dialog.

Annotation Information... Click to open the Annotation Info dialog, which displays theheader information of an Annotation file. This information includes the number of objectsin the file and the map information associated with the file. It can also be used to reprojectthe contents of an annotation file.

Image Information... Click to open the Image Info dialog, which gives full imageinformation for a selected raster image.

Vector Information... Click to open the Vector Info dialog, which gives full imageinformation for a selected vector coverage.

Image Command Tool... Click to open the Image Commands dialog which providesconvenient access to many frequently used image manipulation tools.

Coordinate Calculator... Click to open the Coordinate Calculator, which allows you totransform coordinates from one spheroid or datum to another.

Create/Display Movie Sequences... Click to open the Movie viewer, which enables youto view a series of images in rapid succession.

Create/Display Viewer Sequences... Click to open the VUE Player, which enables youto view a series of images saved from the IMAGINE Viewer.

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Image Drape... Click to open the Image Drape Viewer. Image Drape is a tool that allowsfor the creation of static perspective scenes (no real time flight).

Manage PostScript and TrueType Fonts... (UNIX only) Click to open the FontTasticFont Manager. This is a utility that allows you to add new fonts to IMAGINE annotation.

View EML ScriptFiles... (UNIX only) Click to open the EML View dialog, which enablesyou to view, edit, and print IMAGINE dialogs.

Utilities Click for a menu of utility items that allows you to perform general, useful tasks inERDAS IMAGINE.

JPEG Compress Images... The JPEG Compression dialog is opened, allowing you tocompress images using the JPEG compression technique.

Decompress JPEG Images... The JPEG Decompression dialog is opened, allowing

you to decompress images compressed using the JPEG technique.

Convert Pixels to ASCII... The Pixel To Table dialog is opened, allowing you to outputdata file values to an ASCII file.

Convert ASCII to Pixels... The Table To Pixel dialog is opened, allowing you to createan image from an ASCII file.

Convert Images to Annotation... The Raster to Annotation dialog is opened. Thisutility enables you to convert a raster image to polygons in an annotation file

Convert Annotation to Raster... The Annotation to Raster dialog is opened. This

utility enables you to convert an annotation file containing vector graphics to a rasterimage file.

Create/Update Image Chips... The Image Chip Maker dialog is opened. In IMAGINE,each image may have an optional chip associated with it and the chip is stored in a .CHPfile. The chip is useful for browsing, since the file selector now displays small image chips.This tool provides a direct means of creating chips for one or more images.

Mount/Unmount CDROM... (UNIX only) The Mount/Unmount CDROM dialog enablesyou to mount and unmount a CD-ROM.

Create Lowercase Parallel Links... (UNIX only) The Create Lowercase Parallel Links

dialog allows you to create a directory tree parallel to a source directory tree in which alldirectory and file names are in lowercase lettering and without the version extensions.

Create Font Tables... Click to open the Font Table Maker dialog, which allows you tocreate a map of characters in a particular font.

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Compare Images... Click to compare specified features between two images. TheImage Compare dialog opens.

Reconfigure Raster Formats Select this option to update the list of available rasterDLLs after you have added new raster DLLs.

Reconfigure Vector Formats Select this option to update the list of available vectorDLLs after you have added new vector DLLs.

Help Click to access the ERDAS IMAGINE On-Line Help.

Hypertext links are underlined words or phrases of a different color than the body text. Thedefault color is green but may be changed with an entry in the appropriate resources file(.Xdefaults on UNIX). If system color resources are exhausted, hypertext links will be black.

When the mouse cursor is passed over a hypertext link, the cursor changes from an arrow to

a pointing finger. Simply click on any hypertext link in an On-Line Help document to get moreinformation on that topic. Click the Back button on the On-Line Help menu bar to return to theprevious topic.

Help for Icon Panel... The IMAGINE On-Line Help utility starts and displays thisdocument. You may jump to any of the available On-Line Help Manuals from any helppage via the Manuals button at the top of the page.

The Help button on any dialog in ERDAS IMAGINE displays On-Line Help for that dialog.

IMAGINE On-Line Documentation... This option takes you to the root of the On-LineHelp tree. This document contains copyright information, the list of other IMAGINE

manuals, and an introduction to using On-Line Help.

IMAGINE Version... The version of ERDAS IMAGINE that you are running is reported.

IMAGINE DLL Information... Click to open the DLL Version Tool. In IMAGINE, DLLs(Dynamically Loaded Libraries) are used to provide an open and extensible architecturefor many areas, including: Raster File Formats, Geometric Models, Font Filters, EMLApplication Functions, etc. This tool provides a central manager, which allows the user tosee what the current DLL categories are and how many DLLs are present in eachcategory.

Click to show IMAGINE version number, date, anddevelopment credits.

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Click to create a new Viewer. The Viewer is the main window

for displaying raster, vector, AOI, and annotation layers.

Click to import raster and vector data into ERDAS IMAGINEor to export ERDAS IMAGINE files. The Import/Export dialog is opened.

Click to display the Data Preparation menu. The DataPreparation menu provides access to a set of tools that are useful in general data preparation.This includes Image Mosaicking, Image Rectification Surface Generation, etc.

Click to bring up the Map Composer dialog. The MapComposer prepares data for hardcopy map production.

Click to bring up the Image Interpreter dialog. Many commonimage enhancement and manipulation operations are available in Image Interpreter,including spatial enhancement, radiometric enhancement, spectral enhancement, Fourieranalysis, topographic analysis, GIS analysis, and various utilities.

Click to bring up the Image Catalog, a database for managingraster image information and selecting files geographically. The Image Catalog also providesan automated image archiving system.

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Click to access the ERDAS IMAGINE Classification

capabilities, enabling you to perform supervised or unsupervised image classification. Toolsfor gathering non-parametric feature space signatures are also included.

Click to bring up the Spatial Modeler dialog. The SpatialModeler allows you to perform many GIS algebra and GIS modeling operations using ModelMaker and the Spatial Modeler Language.

Click to access the Vector Utilities. These utilities allow youto convert raster to vector and vice versa, build and clean vector layers, copy, rename, anddelete vector layers, and more.

Click to open the Radar menu. The Radar menu providesaccess to native image processing operations with radar imagery.

Click to display the VirtualGIS menu. The Virtual GIS menugives you access to the Image Drape tool and the Virtual World Editor, as well as IMAGINEVirtual GIS. The Virtual GIS function is a family of tools for working with perspective scenegeneration.

Click to open OrthoBASE Startup. OrthoBASE is the digitalphotogrammetry package that allows for the fast and accurate triangulation andorthorectification of images collected from various types of cameras and satellite sensors.

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For information on using the different components of the ERDAS IMAGINE graphical userinterface, see the on-line IMAGINE Interface manual.

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Preference Editor

Preference Editor

This dialog opens when you select Session | Preferences... from the ERDAS IMAGINE iconpanel. This is the newer, default version of the Preference Editor. The older version is still

available through the Use Preference Editor Dialog preference under the User Interface &Session category. This dialog can be resized.

The Preference Editor enables you to set a variety of parameters that affect the way ERDASIMAGINE runs. The Preference Editor allows you to customize IMAGINE for your own use, or foreveryone at your site.

How IMAGINE Reads Preference Files

Here and elsewhere, refers to the directory where ERDAS IMAGINE isinstalled on your system. Preferences are saved in these files:

oUser preferences are saved in $HOME/.imagine[version]/v8preference.

o Global preferences are saved in /defaults/v8preference.

When IMAGINE starts, it reads, in this order:

1. The default preferences, set by ERDAS,

2. your systems global preferences in /defaults/v8preference, and then

3. your own preferences, in $HOME/.imagine[version]/v8preference.

Each subsequent preferences file overrides any that were previously read.

Category: Click on this popup list to select a set of preferences to edit. Each categoryaffects a different feature of ERDAS IMAGINE. The individual preferences for the selectedcategory are displayed and edited in the scrolling window.

Close Click to close the Preference Editor.

User Save Click this button to save changes to the account you are currently logged-into. Your local preferences override any global or default preferences.

Global Save Click this button to save changes so that all IMAGINE users working fromthe same IMAGINE installation are affected.

Category Help Click to display help for each preference of the currently selectedpreference category. You may also click the Contents button on the help viewer and double-click on the Session manual. At the end of the topics list is a book of Preferences. Double-click this book to gain access to help for all of the IMAGINE preference categories.

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Preference Editor

Help Click to see this On-Line Help document.

See the ERDAS IMAGINE Installation Guide for more information on setting uppreferences.

For information on using the ERDAS IMAGINE graphical interface, see the on-line IMAGINEInterface manual.

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Preference Editor (Old)


This dialog opens when you select Session | Preferences... from the ERDAS IMAGINE iconpanel. This is the older version of the Preference Editor. The newer, default version is available

through the Use Preference Editor Dialog preference under the User Interface & Sessioncategory. This dialog can be resized.

The Preference Editor enables you to set a variety of parameters that affect the way ERDASIMAGINE runs. The Preference Editor allows you to customize IMAGINE for your own use, or foreveryone at your site.

How IMAGINE Reads Preference Files

Here and elsewhere, refers to the directory where ERDAS IMAGINE isinstalled on your system. Preferences are saved in these files:

oUser preferences are saved in $HOME/.imagine[version]/v8preference.

o Global preferences are saved in /defaults/v8preference.

When IMAGINE starts, it reads, in this order:

1. The default preferences, set by ERDAS,

2. your systems global preferences in /defaults/v8preference, and then

3. your own preferences, in $HOME/.imagine[version]/v8preference.

Each subsequent preferences file overrides any that were previously read.

File

Save To v8preference

User Level Select this option to save changes to the account you are currentlylogged-in to. Your local preferences override any global or default preferences.

Global Level Select this option to save changes so that all IMAGINE users workingfrom the same IMAGINE installation are affected.

Close Select to close the Preference Editor.

Help

Preference Online Documentation Select to see this On-Line Help document.

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Help For This Category Select to display help for each preference of the currentlyselected preference category. You may also click the Contents button on the help viewerand double-click on the Session manual. At the end of the topics list is a book ofPreferences. Double-click this book to gain access to help for all of the IMAGINE

preference categories.

Category: Click on this popup list to select a set of preferences to edit. Each categoryaffects a different feature of ERDAS IMAGINE. The individual preferences for the selectedcategory are displayed and edited in the scrolling window.



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CD-ROM Preferences

CD-ROM Preferences

UNIX Only

The Configuration Editor allows you to set parameters for the currently selected CD-ROMdevice.

Select Session | Configuration... from the ERDAS IMAGINE icon panel to access theConfiguration Editor dialog.

The following lists the default entries for the CD-ROM device.

Model

CD-ROM device.

Host

Enter the host name of the workstation on which the CD-ROM device is attached.

Mount Point

Default: /cdrom. Enter the directory over which you will be mounting the CD-ROM device.

Device File

Default: /dev/cd0. Enter the name of the CD-ROM device file for your system.

Refer to the ERDAS IMAGINE Installation Guide for specific information. The actual entries

required for your platform may differ from those shown here.

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Host Preferences

Host Preferences

UNIX Only

The Configuration Editor enables you to define the number of multiple processors for thecurrently selected host workstation.


Number of Processors

IMAGINE software takes advantage of workstations with multiple processors to increaseprocessing speed. Enter the number of CPUs that are in this workstation.

Even in systems with a single CPU, performance will be enhanced if you enter a 2.

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Printer Preferences

Printer Preferences

UNIX Only

The ERDAS IMAGINE Configuration Editor enables you to set parameters for the printer orplotter you are setting up to be accessed by IMAGINE.


The different printer connection types and how to use them are discussed in the PrinterConnection section.

The following pages list the default entries for the IMAGINE printer preferences for these printers:

CalComp Techjet Inkjet Plotter

HPRTL Plotters such as the Hewlett-Packard DesignJet and Encad NovaJet

PostScript Level II Printers

Versatec Electrostatic Plotter

Not all printers are supported on all platforms. Consult the ERDAS IMAGINE InstallationGuide to see which devices are supported on your system.

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Printer Connection

Printer Connection

UNIX Only

There are several preferences which are common across printer classes. These control howdata is transmitted from Imagine to the printer based on how the printer is connected to theserver or network. The Printer Connection sets up the transmission method while the otherpreferences control the actual destination. It is important to configure all relevant preferences foreach printer connection type to ensure that the printer will be accessible. Below is the full list ofprinter connection types and the preferences which must be set for each one.

Not all printers support all connection types. Some of the connection types will not beavailable when configuring certain printers.

o System Queue

Using this connection sends data into the standard operating system spooling softwarequeue. A System Queue should be used to access printers connected to a local device orserved by a remote host. It is important to correctly set the values of the Print QueueName, Queue Type, Print Queue Host, and Local Device preferences when using thisconnection type. If all of these fields are filled in correctly, the same printer definition canbe used to configure a print queue on any host on the network so that the output will goto the same destination.

By default, the map will be translated directly to an output format understood by the printdevice and this data will sent directly to the system spooler. This can often require largeamounts of spooling space. The System Queue connection can be used in conjunction

with the Imagine Print Accelerator to reduce both printing time and spooling spacerequirements for large maps. Turn the Print Acclerator on and off with the preference UseImagine Print Accelerator. If the Print Accelerator is used, a small control file will bespooled instead of the large data file. A special print filter will then interpret the control fileand retrieve the data to be sent to the printer when the device becomes available. ThePrint Accelerator can be used with printers served from local or remote hosts, but not withprinters connected directly to the network.

o JetDirect

Using this connection sends data directly to a network printer which uses the JetDirectprotocol. It can be used for any printer type which has a JetDirect card. It is important tocorrectly set the value of the Print Queue Host to the name of the network print devicewhen using this connection type.

o Tftp

Using this connection sends data to a remote printer using the Trivial File TransferProtocol. It is important to correctly set the value of the Print Queue Host to the name of

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Printer Connection

the remote server when using this connection type.

o File

Using this connection creates a file to hold the data that would normally have been sentto a print device. The file will contain data which is ready to send to a print device. It isimportant to correctly set the values of the Output Directory and Output File preferenceswhen using this connection type.

o Drop Directory

This connection is similar to the File connection in that it creates a file ready to send to aprint device. The main difference is that only the specified directory is taken from theconfiguration information. A unique file name will be created in that directory to receivethe data. The primary use for this connection type is a spooling system which watches forfiles to be created in a specific directory. It is important to correctly set the value of the

Output Directory preference when using this connection type.

o Other Command

Using this connection causes the print data to be piped into the input of the commandspecified. It is useful for printing to a preview program to display a map on the screen, orwhen a spooling system requires the use of a special command (other than lp or lpr) toadd jobs to the queue. The command should be entered in the Other Commandpreference field.

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UNIX Only

Printer Model

CalComp Techjet

Print Queue Name

This is the name of the print queue that will serve the printer. Each configured printer that is localto a given host must have a unique print queue name. Most systems have restrictions on theformat of this name (e.g., on Sun systems, see man printcap).

Printer Connection

Default: System Queue (standard operating system spooling software queue). This is the

method for sending data to the printer.

Options are System Queue, Tftp (Trivial File Transfer Protocol), File (Create a named file), DropDirectory (Create a unique file in a specific directory), Other Command (Send the data, formattedfor the printer, to the specified command). Left-hold this popup list to select a different option.

Queue Type

Default: BSD. The configured machine, either remote or local, can be configured for eitherSystem V printing or BSD printing.

Use Imagine Print Acclerator

This controls the use of the Imagine Print Accelerator system with a System Queue connection.Default: Off

Print Queue Host

This is the name of the host to which the printer is actually attached or the name of the networkinterface to the printer. Default: $HOSTNAME

Local Device

This is the name of the device file through which the printer may be accessed. Default: Varies

per platform.

Output Directory

This is the default destination for the File and Drop Directory print connections. This value canbe overridden in the Print Map Compostion dialog when the map is actually printed. Default:$HOME

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Output File

This is the default file name for the File print connection. This value can be overridden in the PrintMap Composition dialog when the map is actually printed. Default: techjet.out

Other Command

This the command to use for the Other Command printer connection. Default: lpr

Color Options

Default: CMYK (cyan, magenta, yellow, black). Options are CMYK, CMY (cyan, magenta,yellow), or black. Left-hold this popup list to select a different option.

Media Width

Default: 36. The minimum is 0. Enter the width of the output medium you are using.

Media Height

Default: 0. Enter the height of the output medium you are using. The minimum is 0 (use 0 forunlimited, e.g., roll paper).

Media Units

Default: inch. Options are meter, centimeter, or millimeter for use with the Metric system. Left-hold this popup list to select a different option.

Horizontal Dot Density

Default: 360. Enter the dots per inch (DPI) per horizontal unit. The minimum is 0.

Vertical Dot Density

Default: 360. Enter the dots per inch (DPI) per vertical unit. The minimum is 0.

Dot Units

Default: inch. Options are meter, centimeter, or millimeter for use with the Metric system.Represents the printer dot density unit type. Left-hold this popup list to select a different option.

Total Horizontal Pixels

Default: 12600. Total number of horizontal pixels in the printable area of a 36 wide plotter. Theminimum amount is 0. If your plotter is not 36 wide, see your printer manufacturer specificationfor the amount.

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Total Vertical Pixels

Default: 0. Total number of vertical pixels in the printable area. The minimum amount is 0.

Halftone Screen Frequency

Default: 70. Enter the number of lines per inch (LPI). The minimum number is 0.

Black Screen Angle

Default: 45. Enter the black screen angle in degrees. The minimum amount is 0.

Cyan Screen Angle

Default: 15. Enter the cyan screen angle in degrees. The minimum amount is 0.

Magenta Screen Angle

Default: 75. Enter the magenta screen angle in degrees. The minimum amount is 0.

Yellow Screen Angle

Default: 0. Enter the yellow screen angle in degrees. The minimum amount is 0.

Use a Mirrored Image

Default: Check box disabled (turned off), indicating that the image is not mirrored. If you want touse mirrored images (for example, if you are printing on negative film) this check box should beenabled. The selection for the Mirrored Image check box in the Print Map Composition dialogwill override the selection in the Configuration Editor.

Number of Copies

Default: 1. This lets you select the number of copies to print which appears as the default in thePrint Map Composition and Print Plot File dialogs. The minimum allowed is 1 and the maximumis 1000. The entry for the Number of Copies number field in the Print Map Composition andPrint Plot File dialogs will override the entry in the Configuration Editor.

Color Intensity Level

Default: 1. This lets you set the printer color intensity level per pass.

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HPRTL Plotters

HPRTL Plotters

UNIX Only

Printer Model

HP DesignJet 650C, HP DesignJet 755CM, Encad NovaJet

Print Queue Name

This is the name of the print queue that will serve the printer. Each configured printer that is localto a given host must have a unique print queue name. Most systems have restrictions on theformat of this name (e.g., on Sun systems, see man printcap).

Printer Connection

Default: System Queue (standard operating system spooling software queue). This is the

method for sending data to the printer.

Options are System Queue, Tftp (Trivial File Transfer Protocol), File (Create a named file), DropDirectory (Create a unique file in a specific directory), Other Command (Send the data, formattedfor the printer, to the specified command). Left-hold this popup list to select a different option.

Queue Type




Print Queue Host


Local Device

This is the name of the device file through which the printer may be accessed. Default: Varies

per platform

Output Directory


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HPRTL Plotters

Output File

This is the default file name for the File print connection. This value can be overridden in the PrintMap Composition dialog when the map is actually printed. Default: hprtl.out

Other Command


Color Options

Default: CMY (cyan, magenta, yellow). Options are CMY or black. Left-hold this popup list toselect a different option.

Media Width

Default: 36. The minimum is 0. Enter the width of the output medium you are using.

Media Height

Default: 0. Enter the height of the output medium you are using. The minimum is 0 (use 0 forunlimited, e.g., roll paper).

Media Units

Default: inch. Options are meter, centimeter, or millimeter for use with the Metric system. Left-hold this popup list to select a different option.


Default: 300. Enter the dots per horizontal unit. The minimum is 0.


Default: 300. Enter the dots per vertical unit. The minimum is 0.

Dot Units

Default: inch. Options are meter, centimeter, or millimeter for use with the Metric system.Represents the printer dot density unit type. Left-hold this popup list to select a different option.


Default: 10680. Total number of horizontal pixels in the printable area of a 36 wide plotter. Theminimum amount is 0. If your plotter is not 36 wide, see the printer manufacturer specificationfor the amount.

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HPRTL Plotters


Default: 0. Total number of vertical pixels in the printable area. The minimum amount is 0.

Halftone Screen Frequency

Default: 60. Enter the number of lines per inch (LPI). The minimum number is 0.

Black Screen Angle

Default: 45. Enter the black screen angle in degrees. The minimum amount is 0.

Cyan Screen Angle

Default: 15. Enter the cyan screen angle in degrees. The minimum amount is 0.

Magenta Screen Angle

Default: 75. Enter the magenta screen angle in degrees. The minimum amount is 0.

Yellow Screen Angle

Default: 0. Enter the yellow screen angle in degrees. The minimum amount is 0.


Default: Check box disabled (turned off), indicating that the image is not mirrored. If you want touse mirrored images, for example, if you are printing on negative film, this check box should beenabled. The selection for the Mirrored Image check box in the Print Map Composition dialogwill override the selection in the Configuration Editor.

Number of Copies

Default: 1. This lets you select the number of copies to print which appears as the default in thePrint Map Composition and Print Plot File dialogs. The minimum allowed is 1 and the maximumis 1000. The entry for the Number of Copies number field in the Print Map Composition dialogand Print Plot File dialog will override the entry in the Configuration Editor.


Default: 1. This lets you set the printer color intensity level per pass.

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PostScript Printers

PostScript Printers

Printing PostScript files can consume large amounts of plotter on-board memory. Althoughthe memory consumption has no direct relation to the size of the plot file, you may use the

size of the plot file as a rough estimate of the plotter memory requirement.

Unix Only

Printer Model

Generic PostScript

Print Queue Name

This is the name of the print queue that will serve the printer. Each configured printer that is localto a given host must have a unique print queue name. Most systems have restrictions on the

format of this name (e.g., on Sun systems, see man printcap). If the configured printer is a PostScript printer that is attached to a Tektronix 4511a controller,

the print queue name must be PS.

Printer Connection

Default: System Queue (standard operating system spooling software queue). This is themethod for sending data to the printer.

Options are System Queue, Tftp (Trivial File Transfer Protocol), File (Create a named file), DropDirectory (Create a unique file in a specific directory), Other Command (Send the data, formatted

for the printer, to the specified command). Left-hold this popup list to select a different option.Queue Type




Print Queue Host


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PostScript Printers

Local Device

This is the name of the device file through which the printer may be accessed. Default: Variesper platform

Output Directory


Output File

This is the default file name for the File print connection. This value can be overridden in the PrintMap Composition dialog when the map is actually printed. Default: postscript.out

Other Command


Color Options

Default: RBG. Options are RGB (red, green, blue) or black. Left-hold this popup list to select adifferent option.

PostScript Level

Default: 2. See your printers technical manual for the PostScript Level used by your printer.

Media WidthDefault: 8.5. The minimum is 0 and the maximum is 17. Enter the width of the paper or otheroutput medium you are using.

Media Height

Default: 11. Enter the height of the paper or other output medium you are using. The minimumis 0.

Media Units

Default: inch. Options are meter, centimeter, or millimeter for use with the Metric system. Left-

hold this popup list to select a different option.


Default: 300. Enter the dots per inch (DPI) per horizontal unit. The minimum is 0.

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PostScript Printers


Default: 300. Enter the dots per inch (DPI) per vertical unit. The minimum is 0.

Dot Units

Default: inch. Options are meter, centimeter, or millimeter for use with the Metric system.Represents the printer density unit type. Left-hold this popup list to select a different option.


Default: 2424. Total number of horizontal pixels in the printable area of the medium. Theminimum amount is 0. If you change the paper size, you must also change this field.


Default: 3156. Total number of vertical pixels in the printable area of the medium. The minimum

amount is 0. If you change the paper size, you must also change this field.


Default: Check box disabled (turned off), indicating that the image is not mirrored. If you want touse mirrored images (for example, if you are printing on negative film) this check box should beenabled. The selection for the Mirrored Image check box in the Print Map Composition dialogwill override the selection in the Configuration Editor.

Number of Copies

Default: 1. This lets you select the number of copies which appears as the default in the print

dialog. The minimum is 1 and the maximum is 1000. The entry for the Number of Copiesnumber field in the Print Map Composition dialog and Print Plot File dialog will override the entryin the Configuration Editor.


Default: 256. This lets you set the printer color intensity level. The setting can be between 1 and256.

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Tape Drive Preferences

Tape Drive Preferences

The Configuration Editor enables you to set parameters for the currently selected tape drive.

Select Session | Configuration... from the ERDAS IMAGINE icon panel menu bar to access theConfiguration Editor dialog.

The following lists the default entries for the tape drive preferences.

Tape Model

1/2 inch magnetic tape. Enter the type of tape drive.

Host

Enter the host name of the workstation on which the tape drive is attached.

Device File

Default: /dev/rst0. Under UNIX enter the name of the tape drive device file for your system.

Refer to the ERDAS IMAGINE Installation Guide for specific information. The actual entriesrequired for your platform may differ from those shown here.

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Configuration Editor


The Configuration Editor enables you to define and configure a CD-ROM, printer, host, and tapedrive within ERDAS IMAGINE and set up preferences for those devices. This makes the device

accessible through various IMAGINE dialogs (e.g., Print Map Composition). The ConfigurationEditor also allows you to create a print queue to serve the configured printer(s) and maintain thecolor balance lookup tables for electrostatic plotters.

See the ERDAS IMAGINE Installation Guide for more information on configuring devices.

i Under Microsoft Windows, some devices are configured using the tools provided with theoperating system.

Select Session | Configuration... from the ERDAS IMAGINE icon panel menu bar to open theConfiguration Editor dialog.

File This menu gives you the option to save the additions and changes for the currentconfiguration class, create a print queue, adjust the color balance for the printer, and closethis dialog.

Save Click to save the setup and preferences for the currently selected configurationclass.

Create Print Queues (UNIX only) Click to generate a script that will create a print queuefor the configured printer(s) in ERDAS IMAGINE. The Create Print Queue dialog isopened.

Color Balance (UNIX only) Click to adjust the color balance lookup tables for theelectrostatic plotter (CalComp or Versatec). The Color Balance dialog is opened.

Close Click to close this dialog.


Device Selection: You need to define the type of device being configured.

Configuration Class: Click on this popup list to select the type of device you are settingup to be accessed by IMAGINE.

RasterFormat Click to configure raster formats.StereoDisplays Click to configure a stereo display.

VectorFormats Click to configure vector formats.

cdroms (UNIX only) Click to configure CD-ROM Preferences.

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hosts (UNIX only) Click to configure Host Preferences.

printers (UNIX only) Click to configure Printer Preferences.

tapes Click to configure Tape Drive Preferences.

Use Filter Click to view only the configured devices that were set up using the selectedTemplate Filter in the Configured Devices list. When this check box is turned off, all of theconfigured devices for the selected Configuration Class will display in the list.

Template Filter: Click on this popup list to select a template filter for the device beingset up. The default preferences are based on this filter. Devices that are supported byIMAGINE are displayed in this list.

Database Level: You need to define the level that this configuration file will be accessed.

Directory: Click to select one of the following directory levels.

Global Global = /etc

Replace with the directory where ERDAS IMAGINE softwareresides (e.g., /usr/imagine/830).

The setup and preferences for the current device will be accessible by all IMAGINEusers working from the same IMAGINE installation. You cannot save to the globalenvironment unless you are the system administrator who installed IMAGINEsoftware.

When you have the Global option selected for a Configuration Class, only the Globalconfiguration information will be accessible from the rest of the IMAGINE userinterface for this Configuration Class. This allows a system administrator to properlytest only the global changes, and it prevents the administrator's User preferences frombeing inadvertently saved to the global database.

User User = /.imagine830

The setup and preferences for the current device will be accessible only by you(whenever you are logged into the same account). Your User preference changes to aglobally configured device will take precedence over the Global preference settings foryour IMAGINE sessions.

File: Click on this popup list to select only one file at this time. This file will be used forsaving the setup and preferences for the current configuration class.

.cfg

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refers to the type of device being configured, that is the selected ConfigurationClass (e.g., tapes, RasterFormat).

Configured Devices This list displays the devices that have been configured within

IMAGINE. The devices listed depend on the status of the Use Filter check box. Click on adevice name to make it active.

New Click to add a new device using the selected Template Filter. The Create NewDevice dialog is opened.

Delete Click to delete the active device from the Configured Devices list.

UnDelete Click to un-delete a deleted device.

Device: This text shows you the device for which the preferences are being saved.

Template: This text shows which template was used to create the default preferences forthe device.

Status: This text shows you the status of currently selected device.

(preferences) The Configuration Editor allows you to set parameters for the currentlyselected printing device. This area applies only to Configuration Class: printers.



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Create new device

Create new device

This dialog enables you to define the name of the new device being configured. This is the namethat will display in the IMAGINE dialogs as an output or input device option (e.g., tape, or under

UNIX, Print Map Composition dialog). This name will also be listed in the Configuration Editor inthe Configured Devices list. The default preferences for this new device will be based on thedefined Template Filter.

This dialog is opened when you click New... in the Configuration Editor dialog.

Template: This label shows you the template filter that will be used to configure and setup the new device.

Name: Enter the name for the device (e.g., tape0, or under UNIX calc_plotter). After youenter the name, press the RETURN key for the name to be accepted.

OK Click to run this process with the options selected and close this dialog.

Cancel Click to cancel this process and close this dialog.



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Create Print Queues

Create Print Queues

UNIX Only

This dialog enables you to generate a script that you will execute to create a print queue(s) for aconfigured printer(s).

Select File | Create Print Queues... in the Configuration Editor to open this dialog.

All Printers Click to set up print queues for all of the printers that have been configuredin ERDAS IMAGINE using the Configuration Editor. By default, this option is selected.

Current Printer Click to set up a print queue for the current printer in the ConfigurationEditor.

Output Script Enter the file name for the script that will be generated by this utility. Thedefault is /tmp/printcap.

OK Click to run this process with the options selected and close this dialog.

Close Click to cancel this process and close this dialog.


For more information about using the Configuration Editor, refer to the ERDAS IMAGINEInstallation Guide.

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Color Balance

Color Balance

UNIX Only

When you output a map or image to a plotter, IMAGINE Map Composer converts the RGB valuesfor the image to CMYK (cyan, magenta, yellow, black) values. The plotter then processes theseCMYK values through its own lookup tables and outputs the image.

The Color Balance utility allows you to maintain the color balance lookup tables for the plotter(CalComp or Versatec) so that it matches the screen color scheme better. These adjustmentsare necessary because the ink curves vary among plotters.

The system administrator (the person who installed IMAGINE) is the only person with theauthority to adjust the color balance for the plotters.

The Color Balance graph displays the lookup table curves for the plotter. When the pointer

(controlled by the mouse) is in the graph, the numbers that appear near the curve show youvalues that are represented by the pointer location. Values shown in a white backgroundrepresent the graph. Values without a white background represent the lookup table values

o At bottom center, the data value represented by the pointer location is shown.

o At center left, the frequency of that data value is shown in a white background.

o At center left, the output lookup table value is shown (no white background).

The active curve can be edited by its breakpoints, which are the vertices of the graph line, wherethe slope of the line changes. Breakpoints are represented by a small box along the graph line.

See the Hardcopy Output chapter in the ERDAS Field Guide for more information on RGBto CMY conversion.

Select File | Color Balance... from the Configuration Editor menu bar to open this dialog.

File This menu allows you to save the adjustments to a file, print the color balance chart,and exit this utility.

Save Click to save the lookup table for the plotter to a file.

Print Click to print the graph of the lookup table.

Exit Click to exit the Color Balance utility.

Edit This menu lets you undo edits and specify the active lookup table curve in the ColorBalance graph.

Undo last Click to undo the last edit in the active color curve.

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Color Balance

Undo all Click to undo all edits that were performed with the currently active lookup tablecurve.

Calibrate Click to open the Calibration Table dialog.

Black Click to make the black lookup table curve active.

Cyan Click to make the cyan lookup table curve active.

Magenta Click to make the magenta lookup table curve active.

Yellow Click to make the yellow lookup table curve active.

UCR Click to edit the under color removal curve.

View This menu allows you to view the Color Balance graph as a table.

Table... Click to view the Color Balance graph in a table. The Breakpoint NumericalTable is opened.


Click to output the Color Balance graph to the PostScript printer that is specified in theConfiguration Editor.

Click to view the color balance graph in a table. The Breakpoint Numerical Table is

opened.

Click to make the black lookup table curve active.

Click to make the cyan lookup table curve active.

Click to make the magenta lookup table curve active.

Click to make the yellow lookup table curve active.

Click to make the under color removal curve active.

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Color Balance

Click to move a breakpoint on the active lookup table curve. Left-click on the breakpointand drag it to the desired position on the graph.

Click to add a breakpoint to the active lookup table curve. Left-click on the curve whereyou want the breakpoint to be added.

Click to delete a breakpoint from the active lookup table curve. Left-click on thebreakpoint that you want to delete.

Click to create a curve from left-to-right between two breakpoints on the active graph.Left-click on the graph where you want the curve to begin.

Click to create a curve from right-to-left between two breakpoints on the active graph.Left-click on the graph where you want the curve to begin.

Graph Options Menu(right mouse button menu) Right-hold in the graph to select one of the options fromthe Graph Options right mouse button menu.

Undo Last Edit Right-hold to undo the last edit in the active color curve.

Undo All Edits Right-hold to undo all edits that were performed with the currently activecolor curve.

Copy LUT Right-hold to copy the active lookup table (LUT) curve to a different LUTcurve. For example, you can copy the shape and breakpoints of the black LUT curve tothe cyan LUT curve. Select this option with the desired LUT curve active, and then selectPaste LUT with the other LUT curve active.

Paste LUT Right-hold to paste a lookup table curve (LUT) to the active lookup tablecurve. For example, you can paste the black LUT curve to the cyan LUT curve. SelectCopy LUT with the desired LUT curve active, and then select this option with the otherLUT curve active.

Clip LUT Some operations, including editing breakpoints, can cause breakpoints to existoutside the range of the input and output values. Right-hold to clip the lookup table graphto the limits of the input and output.

Rescale X Right-hold to redraw the graph so that the X axis of the lookup table curvescorrespond to the range set by the rescaling arrows.

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Color Balance

Rescaling affects only the graph and the input lookup table curves. It does not affect theoutput lookup table curves.

To specify the range for the X axis, left-hold and drag the rescaling arrows which appearat the corners of the graph.

Reset X After using Rescale X, right-hold to reset the X axis to the full extent of theinput values.

Rescale Y Right-hold to redraw the graph so that the Y axis of the lookup table curvescorrespond to the range set by the rescaling arrows.

Rescaling affects only the graph and the input lookup table curves. It does not affect theoutput lookup table curves.

To specify the range for the Y axis, left-hold and drag the rescaling arrows which appearat the corners of the graph.

Reset Y After using Rescale Y, right-hold to reset the Y axis to the full extent of the inputvalues.


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Calibration Table

Calibration Table

UNIX Only

This tool is used in conjunction with a test plot from your plotter and a densitometer. Test plotsare made by printing the test maps provided with IMAGINE. For each primary color and for blackthere is a .map file in the examples directory (Cyan=ccbl.map, Magenta=mcbl.map,Yellow=ycbl.map, and Black=bcbl.map). Each file consists of 100 color patches in one percentcolor density increments. Additionally these test plots contain a White reference patch and a Maxreference patch.

The procedure is to print the test plots on the printer/plotter you wish to color balance. Then readthe White and Max reference patches and enter these values in the corresponding fields on thisdialog. You may also read as many other of the patches in the test plots as desired and entertheir patch number and measured value in the appropriate columns of the CellArray.

When you click OK, the corresponding lookup table curve is automatically adjusted.

Select File | Calibrate... from the Color Balance menu bar to open this dialog.

White: Enter the densitometer reading obtained from the White Reference patch.

Max: Enter the densitometer reading obtained from the Max (or Black) Reference patch.

(calibration points) Enter the Patch Number and densitometer reading for each patchyou wish to sample.

OK Click to close the color balance table and adjust the lookup table curves.

Close Click to cancel this process and close this dialog.



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CMYK Breakpoint Numerical Table

CMYK Breakpoint Numerical Table

UNIX Only

This dialog enables you to add and edit breakpoints for the active lookup table curve in the ColorBalance dialog. For example, if the cyan lookup table curve is active, you can add and editbreakpoints for the Cyan CellArray in this dialog.

Your changes to these CellArrays affect the lookup table curve immediately. Likewise, anychanges to the lookup table curves are reflected immediately in these CellArrays.

Select View | Table... in the Color Balance menu bar to open this dialog.

Black CellArray Use the CellArray tools to add and edit breakpoints for the black lookuptable.

Cyan CellArray Use the CellArray tools to add and edit breakpoints for the cyan lookuptable.

Magenta CellArray Use the CellArray tools to add and edit breakpoints for the magentalookup table.

Yellow CellArray Use the CellArray tools to add and edit breakpoints for the yellowlookup table.

UCR CellArray Use the CellArray tools to add and edit breakpoints for the under colorremoval lookup table.




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Breakpoints

Breakpoints

UNIX Only

This dialog enables you to add and edit breakpoints for the black lookup table curve in the ColorBalance dialog.

Your changes to this CellArray affect the lookup table curve immediately. Likewise, any changesto the lookup table curve are reflected immediately in this CellArray.

Select View | Table... from the Color Balance menu bar to open this dialog.

Black CellArray Use the CellArray tools to add and edit breakpoints for the black lookuptable.




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CMY Breakpoint Numerical Table

CMY Breakpoint Numerical Table

UNIX Only

This dialog enables you to add and edit breakpoints for the active lookup table curve in the ColorBalance dialog. For example, if the cyan lookup table curve is active, you can add and editbreakpoints for the Cyan CellArray in this dialog.

Your changes to these CellArrays affect the lookup table curve immediately. Likewise, anychanges to the lookup table curves are reflected immediately in these CellArrays.

Select View | Table... in the Color Balance menu bar to open this dialog.

Cyan CellArray Use the CellArray tools to add and edit breakpoints for the cyan lookuptable.

Magenta CellArray Use the CellArray tools to add and edit breakpoints for the magentalookup table.

Yellow CellArray Use the CellArray tools to add and edit breakpoints for the yellowlookup table.

UCR CellArray Use the CellArray tools to add and edit breakpoints for the under colorremoval lookup table.




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Session Manager

Session Manager

The ERDAS IMAGINE Session Manager supervises the processes of ERDAS IMAGINEapplications and system operations. You can access the Session manager by clicking on the

word Session in the upper left corner of the ERDAS IMAGINE icon panel.This On-Line Help file describes how to use the Session Log... and the Commands... options.

i If the most recent entries in the Session Log are not visible, you have probably run out of diskspace in the directory containing the Session Log. You may view the missing entries usingthe text editor, once free space becomes available on that disk.

Session Log

The IMAGINE Session Log keeps a chronological list of everything that happens during aworking session of IMAGINE, from the time you start up the software to the time you quit. This

includes:

o system status messages

o IMAGINE command messages

o start-up statements

o system error messages

o coefficient of variation calculations from the Speckle Suppression dialog

The Session Log information is stored in an ASCII file which is saved according to thespecification set in your v8preference file (the default is /imagine_log%t):

.S

where the .S extension is automatically added with the session ID number.

A new Session Log file is created each time IMAGINE is started. The old log files remain untilthey are deleted (depending upon how your Preferences are set).

The information stored in the session log can be especially helpful for explaining the workings ofIMAGINE. You may even want to keep the Session Log open on your screen to observe the

entries IMAGINE makes in the log. The entries are made in real time, and can provide valuablefeedback.

To open the Session Log, left-hold Session | Session Log... from the IMAGINE icon panel. Thelog messages are displayed in a window similar to one of the following:

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Session Manager

UNIX

Wed Mar 31 15:36:47 1993 IMAGINE: Loading startup.eml

Wed Mar 31 15:36:47 1993 Redefining existing symbol null!

Wed Mar 31 15:36:47 1993 viewer;

Wed Mar 31 15:36:47 1993 /usr/imagine/bin/sun4-g/viewer (

Wed Mar 31 15:36:47 1993 viewer create at 0 125 size 543

Wed Mar 31 15:36:47 1993 preferences requests viewers to

Windows

IMAGINE Session Log-------------------

User: pouncey

Date: Wed Oct 01 11:06:40 1997

Host: CAVEROS Version: Windows NT 4.0 Build 1381 (Service Pack 3)

IMAGINE Version: Version 8.3.1 Beta 1

Startup Directory: u:\pouncey

Session ID: 355

Starting session log...

01/10/97 11:06:50 viewer create at 0 121 size 580 580;

01/10/97 11:06:50 l:/imagine/bin/ntx86/viewer.exe create at 0 121 size

580 58001/10/97 11:09:01 viewer(356): ERDAS Viewer Ready

Each line of the log shows the date and the system time. This is followed by a brief line describingthe operation that took place.

Coefficient of Variation

One of the items of information stored in the Session Log is the Coefficient of Variation calculatedwith the Speckle Suppression function of the Radar module. After you click on CalculatedCoefficient of Variation and then click OK in the Speckle Suppression dialog, IMAGINE willperform the calculation. The calculated Coefficient of Variation will be entered into the SessionLog and is opened similar to the following:

Wed Mar 31 16:52:20 1993 Sigma Value for layer 1 of file tradar.img: 0.3591878

In this example, the coefficient of variation is 0.3591878.

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Session Manager

Session Command History

The Session Command History window allows you to enter ERDAS Macro Language (EML)commands and run EML scripts. IMAGINE then performs the EML operation and creates a

chronological list of commands entered from the command history window.The history file is very similar to the Session Log file. The information is stored in an ASCII filewhich is saved according to the specification set in your v8preference file (the default is/imagine_history%t):

.S

where the .S extension is automatically added with the session ID number.

A new history file is created each time IMAGINE is started up. The old history files remain untilthey are deleted (depending upon how your Preferences are set).

To open the Command History window, left-hold Session | Commands... from the IMAGINEicon panel. The log messages will display in a window similar to the following:

UNIX

viewer;

viewer create at 0 126 size 512 512;

viewer pseudocolor /data/raster/ga_cover_small.img band 1;

Windows

viewer create at 0 121 size 580 580;

viewer composition create u:/pouncey/junk.map size 8 8 inches at 0

121 scale 1 background 1 1 1;

To run an EML command or script from the command history window, enter the EML commandsinto the Command: text field at the bottom of the command history window and press RETURN.This allows you to bypass the IMAGINE EML interface when running a particular command, orexperiment with EML scripts you have created while IMAGINE is performing other operations.

This is where you start the emlview utility, which provides access to the On-Line Help Generatortools. To run emlview, simply enter emlview in the Command: field and press Return on yourkeyboard.

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Process List

Process List

This dialog displays a list of the processes running under this session, including the Process ID(Pid), the process type, and the name of the process. This dialog opens when you select

Session | Active Process List... from the ERDAS IMAGINE icon panel.APPLICATIONS and SPAWNs are interactive graphical programs that run at the request of auser. The only difference between the two is whether the program was started with the EMLspawn keyword. With APPLICATIONS, the first request starts the program, and all subsequentrequests are routed to the already running program. With SPAWNs, each request starts its owninstance of the program.

Close Click to Close this dialog.

Kill If you decide you want to end a process which is currently active, you can select oneor more of these active processes and then click on this button to kill them. Use this featurewith great care. If you kill a process, you may lose changes to files or images that were notsaved. In the worst case, you may make some data unusable.

Help Click to view the On-line Help for this dialog.

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Log message

Log message

This dialog enables you to enter messages into the Session Log to further explain the steps youare performing, add messages for other users, etc. This dialog is opened when you select

Session | Enter Log Message... from the ERDAS IMAGINE icon panel.

Message Enter your message here.

Log Click to log the message you have created.



For information on using the ERDAS IMAGINE graphical interface, see the on-line IMAGINE

Interface manual.

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Batch Wizard

Batch Wizard

The ERDAS IMAGINEBatch Wizard allows you to process one or more files with one or morecommands at any time, from one minute to many years in the future (Under Windows NT, a job

cannot be scheduled beyond the end of the current month.). This is useful if you have a processthat requires a long time to run and you want to run it when your system is at minimum utilization(e.g., during the night).

Most of the processing dialogs in ERDAS IMAGINE, such as Importers, Exporters, ImageInterpreter functions, Data Preparation functions, and others have a Batch button. This button isused to place the command in the batch queue instead of actually performing the operation. Off-line processing allows unattended operation, enabling you to log off if desired.

The Batch Wizard consists of five panels. One or more of these panels may not be presenteddepending upon the mode of operation or options selected.

o Record Commands for Automation

o Select Type of Command Processing

o Edit Commands / Create Variables

o Select Files to Process

o Select When to Process Commands

o Enter User Account Information *

* This panel displayed only when the Task Scheduler has been installed. The Task Scheduler ispart of Windows 2000 and it is installed by Office 2000 on Windows NT4.0 systems. This panelis never displayed under UNIX.

Record Commands for Automation

This panel collects commands as they are generated by clicking the Batch button that is availableon many IMAGINE dialogs. This panel is displayed when you select Session | Start RecordingBatch Commands from the IMAGINE icon panel. It is also displayed when you click the

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Batch Wizard

Modify commands manually This option enables the Edit Commands / CreateVariables panel where you may manually modify the command.

Modify commands automatically This option enables the Edit Commands / Create

Variables panel and automatically replaces filenames with variables. Additional manual editsmay also be performed.

Examine the results of automatically modified commands carefully to ensure the resultingcommand and its use of variables is going to work in the way you want it to. There are oftentwo or more ways the variables can be automated, or you may not want a particular valuereplaced with a variable, so the automatic modifications should always be checked.

Edit Commands / Create Variables

This panel is where you can customize an explicit software-generated command to generalize itthus making it useful for a larger set of input files.

Commands This tab is where elements of the command may be replaced by variables.Information about the syntax of IMAGINE commands can be found in the IMAGINECommand and Function Syntax reference.

( commands ) This text field contains the commands that will be run or stored as partof the batch process. The only edits allowed in this field are those performed using thetools below such as to insert a variable or to replace an argument with a variable.

( variables ) This popup list allows you to select the variable that is to be used to replacean argument or to be inserted into the command.

( functions ) This popup list allows you to select the function that will modify the selectedvariable. For example, if the Input variable is selected, selecting BandCount will modify thevariable so that now it will provide the number of bands in the input file rather that thename of the input file. See the Variable Functions table for a description of the availablefunctions.

Click this tool to automatically replace input and output filenames with variables.This is the same as selecting Modify commands automatically from the Select Type ofCommand Processing panel.

Click this tool to insert the selected variable at the current location of the cursorwithin the command string.

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Batch Wizard

Click this tool to replace the argument at the current location of the cursor within thecommand string with the selected variable. Place the cursor within the argument,parameter, or variable and click the left mouse button. Then click the insert tool. The text

on both sides of the cursor location up to the space characters is replaced by the currentvariable.

Click this tool to undo last change to the commands.

Click this tool to load saved commands from a file. A file selector is opened.

Click this tool to save commands to a file for future use. A file selector is opened.

Variables This tab is where variables may be created or modified.

Name: Use this field to change the name of a variable.

Type: Use this popup list to select the type of variable. The options are User and Auto.

User The content of this type of variable is supplied by you. Variables of this type areassigned a column in the Select Files to Process panel which must be populatedbefore processing can begin.

Auto The content of this type of variable is supplied by the software.

Pattern: This field is only enabled when the variable type is Auto.

Set... Click this button to modify the pattern of an Auto type variable. The EditReplacement Pattern dialog is opened.

Delete Before Processing Enable this checkbox to delete intermediate or output filesbefore processing begins. This will prevent errors due to the existence of an old file.

Delete After Processing Enable this checkbox to delete intermediate files beforeprocessing begins. This will prevent errors due to the existence of an old file.

The delete options above remove files without warning or notification even if they are read-

only.

New Click this button to create a new variable. The default name is NEW_VARIABLEwhich may be changed by editing directly in the Name: field.

Delete Click this button to delete the currently selected variable.

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Batch Wizard

Undo Click this button to successively undo previous edits from most recent to first.When there are no edits to undo, this button is disabled.

Select Files to Process

This panel is where you provide the contents of User type variables. It is not accessible whenUse commands as they are is selected as the type of command processing.

( CellArray ) The CellArray contains a column named for each User type variable. Eachrow contains the values that will be substituted for the variable names. For each row, thesoftware runs the batch job one time.

( variables ) This popup list allows you to select the variable list that is to be populatedusing the Add Files tool described below.

Click this tool to add files to the selected variable list. A file selector opens from whichyou may add files individually or in groups using simple wildcard operators.

Click this tool to delete the selected file(s) from the variable lists. Select files by clickingin the left-most column

Show Full Path

Click this tool to load saved variable lists from a file (.bls). A file selector is opened.

Click this tool to save variable lists to a file (.bls) for future use. A file selector isopened.

The .bls files contain the list of names to be operated on by the Batch system. The first line ofthe file contains the name of each variable separated by white space. White space is anyconsecutive sequence of spaces and tabs. The rest of the lines of the file contain the filenamesfor each field separated by white space. Every line is terminated by either a new line or acombination of new line and carriage return. If a name contains a space or a tab, the name needsto be enclosed in quotes.

The foll

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Documents