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i NCSA ImageTool
Introduction i
National Center for Supercomputing Applications
January 1991
January 1991
Introduction
Overview
This introduction provides an overview of NCSA ImageTool
capabilities on the Sun Workstation. The organization and use of
this manual is described and its typographic conventions are
explained.
About NCSA ImageTool
NCSA ImageTool is a utility that provides a variety of methods for
visualizing a set of data points. Color images, contour plots, 3D
plots, and XY graphs are mechanisms that you employ to "see" the
data. Contour plots, 3D plots, and XY graphs can be printed. Color
images can be magnified, composited, and, to some degree, edited.
You can modify color palettes and save them. You can also save
individual images or selected portions of the canvas.
New Features in NCSA ImageTool 1.1
NCSA ImageTool 1.1 now allows you to load and manipulate HDF
(Hierarchical Data Format) files. Consequently, with HDF
support you can open HDF files from or transfer them to other
NCSA software.
You'll notice a few new option in the NCSA ImageTool screen. One
of these options, "Image Loading," requires you to specify the type
of file you are loading. The other option, "SDS scaling," requires
that you enter your file dimensions (unless you're opening an
HDF file which includes its dimensions.)
Finally, NCSA programmers have fixed many bugs, added error
messages, and cleaned up the format and text of the first version.
System Requirements
In order to run NCSA ImageTool, you must have a Sun
Workstation with color hardware capable of displaying 256 colors
simultaneously. You must also have SunView installed on the
machine.
Use of This Manual
This section describes the organization of this manual and the
conventions and nomenclature used in developing it. Before using
NCSA ImageTool, you should be familiar with the SunView user
interface and know how to use control buttons, the mouse, and
scroll bars. If you have not used the Sun Workstation before, refer
to the owner's guide that came with your Sun Workstation before
using this package.
Manual Contents
This manual is organized into the following chapters:
Chapter 1, "Learning to Use NCSA ImageTool," assists you in
creating a graphic representation of your data file. The chapter
offers a brief tutorial on the simpler options available in NCSA
ImageTool.
Chapter 2, "Formatting Your Data Files," explains how NCSA
ImageTool reads and displays data files. The chapter contains a
detailed discussion of the file formats NCSA ImageTool can read.
Chapter 3, "Animation, Palettes, and Plots," covers more
advanced display options in NCSA ImageTool, including
animation, palette modification, and plots.
Chapter 4, "NCSA ImageTool Menus," provides information on
the hidden menu items available in NCSA ImageTool.
Appendix A, "NCSA ImageTool Mouse Button Usage," describes
the use of the program's mouse buttons.
Appendix B, "Errors and Warnings," describes the meaning of
many of NCSA ImageTool's error numbers and warning
messages, as well as some operation system errors.
Appendix C, "Obtaining NCSA Software," outlines the procedures
for obtaining NCSA software via FTP, an archive server, or by
regular mail.
Also included is a Glossary of key terms.
Form of Presentation
The material in this manual is presented in text, screen displays,
or command line notation.
Text
In explaining various features and commands, this manual often
presents a word within a paragraph in italics to indicate that the
word is defined within the paragraph, or that it is a significant
term that should be noted and/or is being mentioned for the first
time.
Portions of this manual refer to other sections of the manual which
explain related topics. These cross references usually mention the
title of sections or chapters enclosed in quotation marks, such as,
See Chapter 1, "Using Composite Tool."
Command Line Format Notation
Throughout this manual, many explanations instruct you to make
entries by typing on the keyboard. These entry instructions are
printed in courier bold type and appear within a paragraph
or on a separate line. The command lines in this manual are
normally shown in lowercase, except in rare instances where
uppercase is required.
When it is necessary for you to press a key that is labeled with
more than one character (such as the RETURN key), this manual
identifies the key with all capital (uppercase) letters. Keys to be
entered are printed in bold type. Keys that are pressed
simultaneously or in succession are linked with a hyphen. For
example, press CONTROL-A.