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Chapter 6 Displaying the Data 123
➧ Try operating the cursor positioning keys to demonstrate their effect. The left/right
arrow key move the cursor along the strip, and the up/down keys move it from strip
to strip. The Home and End keys still move the cursor to the strip ends, and Shift
Home and Shift End move it the first strip and last strip respectively. The Insert and
Delete keys expand or contract the data about the cursor position.
Restore the 3D display by selecting 3D Graph on the Display Layout General tab page.
Cursor
The cursor’s appearance and behavior are a bit different with graphical plots than with
image plots, as detailed in the following table.
Selection Image Plot Graph 3D Graph
None
No Cursor No Cursor No Cursor
Small
Small cross; both
mouse and arrow keys
can place cursor at
any pixel on image.
Home
and
End
keys
move cursor to end
points on strip.
Shift
Home
moves cursor to
first strip.
Shift End
moves it to the last
strip.
Small cross; left/right
arrow keys select pixel
on strip; up/down
arrow keys select strip
to be displayed.
Home
key moves to first
pixel,
End
key to last
pixel.
Small cross; left/right
arrow keys change
selected pixel on strip;
Home
key moves to
first pixel,
End
key to
last pixel. Up/down
arrow keys move
cursor from strip to
strip.
Shift Home
moves to first strip,
Shift End
to last.
Strips may all be from
same frame or each
may be from a
different frame.
Large
Large cross; rays
extend to edges of
data set; with
projections through the
cross-section profiles if
displayed. both mouse
and arrow keys can
place cursor at any
pixel on image.
Home
and
End
keys move
cursor to end points on
strip.
Shift Home
moves cursor to first
strip.
Shift End
moves
it to the last strip.
Same as Small Cursor
and Graph
combination.
Same as Small Cursor
and 3D Graph except
that cursor ray
projections through the
cross-section profiles
are provided. These
will not necessarily be
visually aligned with
the cursor.
Note that the appearance of the cursor can be altered via the Display Layout tab page,
discussed on page 236.
Table 1.
Cursor
appearance
and behavior
for images
and graphs.