|SAS/SPECTRAVIEW Software User's Guide
customization option is to explore an image for specific response values,
referred to as probing. Probing allows you to pinpoint the actual
response value for a specific data point. To probe an image:
- Select the [Xform] global button,
- Position the cursor in the appropriate window,
press the left mouse button to display the probe lines, and do one of the
- To probe a Volume window
image, place the cursor on an axis and drag the probe line to an appropriate
point along the axis. Then drag the other axis probe lines to display the
response value at the intersection of all three probe lines.
- To probe a three-dimensional image in a surface
window, drag the probe lines along the variable axes to display the response
value at the intersection of the two probe lines. (The response axis cannot
be used to probe for response values.) The value for the horizontal axis
is shown below the axis, and the response value is shown above it.
- To probe a two-dimensional image in a surface
window, drag the cursor along the horizontal axis. The value for the horizontal
axis is shown below the axis, and the response value is shown above it.
Note that if the data point being probed is a
missing value, the software displays a ? for the value.
- By default the probe lines and displayed response
value are black.
- To specify a different color for the displayed
response value, select [Palette], then [Label].
- To specify a different color for the probe lines,
select [Palette], [Bounding box], then [User-defined].
Adjust the RGB sliders. As you move the
specified color appears in the square at the left, and the item changes color
in the Volume window. You can also select
a color chip, located below the RGB sliders.
Probed Solid-Volume Image Displaying Response Value
Copyright 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.