|SAS/SPECTRAVIEW Software User's Guide|
The SAS/SPECTRAVIEW interface is a point-and-click, button-driven interface that provides the functionality to visually explore data.
|Invoking SAS/SPECTRAVIEW Software|
libname mylib 'mypath';. Details are provided in Assigning Librefs to Data.
spectraview; acceptable abbreviations include
Invoking SAS/SPECTRAVIEW with a Command
issue the SPECTRAVIEW procedure, which can be abbreviated to
proc spectrav; or
proc sview;. Note that you do not need to include
a RUN statement.
Invoking SAS/SPECTRAVIEW as a Procedure
|Looking at the Initial Display|
Once you invoke the software, the initial interface display appears. By default, the interface is ready for you to load data; that is, [Data] and [Load data] are already selected. From the initial display, you can do the following:
SAS/SPECTRAVIEW Initial Display
You interact with the software by selecting buttons with your graphics input device, which can be a mouse, a pick, or a stylus. SAS/SPECTRAVIEW treats all graphics input devices the same. For simplicity, this document refers to the graphics input device as a mouse.
To select a button, position the cursor on it, and click the left mouse button. Once selected, the button becomes shaded, and in many cases, additional buttons appear. Note that in some situations, the software will select a button for you by default.
|Using the Windows|
You view and manipulate images in display windows,
and you communicate
with the software in the text window.
There are four display windows, which provide different views of an image:
resize the display windows are in Resizing the Display Windows.
Using the text window, which is located to the right of the three basic function buttons (that is, [Data], [Palette], and [Tools]), you can enter text and receive messages from the software.
For example, when you position the cursor on a button, a one-line help message, which is usually a description or instruction, displays in the text window. In response, you usually select a button, enter a value, or use the cursor in a window. You also use the text window to enter specifications, such as for a WHERE clause or to enter text to be added to an image.
Instructions to resize the text window are in Resizing the Text Window.
|Using Global Buttons|
Global buttons, located at the top middle of the interface above the text window, display at all times. Global buttons provide the following capabilities:
|[Xform]||To transform an image by rotating and zooming, to probe for a response value, or to manually move a cutting plane through the volume grid.|
|[Reset]||To reset the display window's orientation, the color palette, or the entire software.|
|[Axis]||To define axis labels.|
|[Save]||To save an image as a PostScript file or a TIFF file or to save data values to a SAS data set.|
|[Help]||To display the online help.|
|[Anno]||To add annotation to an image by defining text, displaying the response legend, or displaying the bounding box.|
|[Exit]||To terminate SAS/SPECTRAVIEW software.|
|Accessing Online Help|
SAS/SPECTRAVIEW provides online help for the interface buttons and sliders. By default, when you position the cursor on a button, a one-line help message displays in the text window. To display more detailed online help, you use the [Help] global button.
To access the detailed online help:
In order for the Online Reference window to be visible, the SAS/SPECTRAVIEW interface should be set to pop-to-top only when you select its window border. If the Online Reference window does not stay on top, you need to modify your window manager files as explained in Controlling the Online Reference Window.
Online Reference Window
To remove the Online Reference window and continue the
one-line help message in the text window, select [Help], then [Brief]. To turn off both, select [Off]. Note
that you cannot close the Online Reference window from the window itself.
The text for each button follows a top-down structure. Information that you need frequently appears at the top. Concepts and other information that you may read only once appears lower down. Each button's information
|Recognizing and Using Cursors|
As you use the interface, you will notice several cursors presented as symbols. These symbols represent different actions to help you perform an activity. The default cursor is an arrow. The default cursor will change for some activities. For example:
|Exiting the Software|
You exit SAS/SPECTRAVIEW with the [Exit] global button, which is located at the top right of the interface. Exiting SAS/SPECTRAVIEW returns you to the SAS System.
Top of Page
Copyright 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.