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vibmembr.txt
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1997-07-08
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WELCOME TO THE MULTI-DIMENSIONAL
DATA VISUALIZATION DEMO
This demonstration shows how you can visualize
data in four or more dimensions using surface
plotting, color, and animation. The demo displays
an animation consisting of 20 surfaces representing
a vibrating membrane. By default, the animation
represents a four-dimensional data set; the X,
Y, Z, and time dimensions are displayed.
You can add a fifth dimension using color. Select
"5 Dimensions" from the "Vertex Colors" sub-menu
of the Options menu to represent a quantity that
changes with time but which is not dependent on
location.
You can rotate the surface by positioning the mouse
in the draw widget, holding down the left mouse button,
and dragging the mouse.
MENU OPTIONS
------------
File Menu:
Select "Quit" to exit the demonstration.
Options Menu:
Select "Style" to choose between a wire-frame
or a solid surface.
Select "Shading" to choose between flat or Gouraud
shading for the surface.
Select "Drag Quality" to change the display quality
when you are rotating the surface. A lower drag
quality setting will generally provide faster
performance.
Select "Vertex Colors" to change the way color is
used in displaying the surface. The "Monochrome"
option will display the surface in a single color.
The "4 Dimensions" option will display the surface
with color representing the Z value of the data.
The "5 Dimensions" option will display the surface
with color representing an independent variable.
About Menu:
Select "About Vibrating Membrane" to display this
help text.
FEATURES OF THE VIBRATING MEMBRANE DEMO
---------------------------------------
The following graphical user interface elements
allow you to control the demo.
<<Triangle pointing to the left >>
Click this button to play the animation
backwards.
<<Solid square >>
Click this button to stop the animation.
<<Triangle pointing to the right >>
Click this button to play the animation
forwards.
<<Left and right arrows >>
Click this button to cause the animation to
reverse direction when it reaches the end or
beginning.
<<Speed slider >>
Adjust this slider to select a faster or slower
rate of display.
<<Frame slider >>
Adjust this slider to display a particular frame.
The slider is only available if the "Active Slider"
checkbox is checked.
<<Active Slider checkbox>>
Click this checkbox to select a particular frame
or to show the current frame number when the animation
is in progress.
<<Reset button>>
Click this button to reset the surface to initial
orientation and frame index.