To continue exploring this sample data set,
close the dialog box of Figure 4 and,
from the XDS File Attributes box of
Figure 3, choose
**Cartesian Dicer **by left clicking on
the diamond next that entry. The XDS Dicer
window shown in Figure 7 will be made
available for you to continue the exploration of your data set.

Figure 7 Orthogonal Planes Bisecting the Data Set

First select the Palette option of Figure 7 and
load or construct a palette that you
think will expose some patterns in your data.
This step often requires quite a bit of
experimentation. Figures 8 through 10 will give you
an idea of what you can do with the **Cartesian Dicer**.

In the Dicer window the X coordinate increases
from left to right across the box;
Y increases from the base to the top of the box;
Z increases from the front face to the rear
face of the box. The scroll bars of Figure 7 permit
panning over a data set that might be
too large to fit in the window. Below and to the
right of these scroll bars are three slides
that allow for changing the position of a planes
perpendicular to the coordinate axes. The
slide to the right of the window controls the
Y coordinate. The lower left slide controls the
X coordinate and the remaining slide varies the
Z coordinate. Left clicking in a slide area
selects a plane for viewing. Dragging the slide
sweeps out a block of planes to be filled
with color. Planes where X is constant are
displayed with colors from the right third of the
displayed palette; planes of constant Y use the
middle third of the palette; constant Z
planes obtain their colors from the left third
of the palette. Occasionally, the palette
becomes corrupted and it is necessary to reload it.
Figures 8 through 10 will give you
an idea of what you can do with the **Cartesian Dicer**.

To complete this short introduction to XDS, return to the
XDS Dicer window and
clear any data displayed in the Cartesian Dicer
window of Figure 7. Turn on the **Dicer** option
by left clicking on the button next to **Dicer**.
This option permits you to lo
ok into your
data set in more detail than the previous
plane-at-a-time method. Experiment with the X,
Y, and Z sliders until you are able to create a
visualization similar to that of Figure 11.

Figure 11 Example Use of the Cartesian Dicer