Final Demo - New Human Interface possibilities enabled by PowerPC
GETTING READY TO DEMO
- Completely clear all entries out of Graphing calculator before launching in front of audience. It remembers where you were last, so it will start with your final “gee whiz” graph on the screen immediately if you don’t clear it out after you finish. Test this to see what I mean. You will need to experiment with this app for comfort. It has fully documented help in the app’s “About box” under credits.
DEMO: Graphing Calculator
1) Launch the standard Apple Menu calculator from 10 years ago. “ The original Mac calculator. Not a bad little item for checkbook balancing, or simple math”
2) Launch Graphing Calculator.
“The new PowerPC macs will come with a new calculator, that really shows off some of the potential power of PowerPC for evolving human interface.”
3) Type a simple expression in, like 345 - 8987/2323=
“ It still handles simple or not so simple math”
Try adding some square roots, or exponentials
4) Clear out previous expression, and type an algebraic equation like: x^2 + 3.5y - x/2= 155.4
“ Note that its capabilities have been expanded to understand algebra.”
select one of the variables, and drag around to different parts of the equation.
Graphining Calculator does that factoring automatically to keep the equation
valid
5.) Now clear that expression and try a simple graph. Type y=sinx. Note that equations in this format can be graphed. Hit the “Graph” button to show the graph of that function. Use the zoom buttons in the lower left corner to zoom back & forth. NOTE the animation of the axis and labels! Show how you can drag the bar between the expression and the graph to change how much of each you show.
6.) Now, show how we can animate this expression by adding a variable “n” . Type y=sin nx, and press the “Graph” button
click on the “n” value in the new animation control panel on the bottom of the screen. Input values to vary n from -5 to 5 over 50 intervals, and press the play button.
7.) Time to go all out. Clear out the equation, and start with z=yxn and press the “Graph” button. This will create a 3d saddle graph. Note that you can pick up and rotate the graph by dragging it around. Press the animation play button, and you can see what characteristics this equation has over time.
8.) You can even change the image on the 3D surface plot. While the Graphing Calculator is still open, open the “Puzzle” from the Apple menu and do a “Copy”. This grabs the Apple image graphic. Return to the Graphing Calculator, and Select Paste, WHILE HOLDING DOWN THE OPTION KEY. This will paste the Apple logo onto the saddle graph surface.
9.) Again, note that if these types of interface changes can be made to a simple calculator, imagine what’s in store for users for other types of applications.
DEMO: KAI’s Spheroids PowerPC demo
- Demo is self-running and self- explanatory. The main points are the new types of human interfaces with real-time manipulation of objects that is possible with the power of PowerPC. This is especially evident at the end, where you can click on any spot of the sphere, and it will be instantly re-rendered with a new light source and color from that point. If you hold the mouse down, it will cycle through light intensities and different colors.
At the end, emphasize that this is a live application - not a Director or quicktime movie that took days to render.
Note: To quit demo, click on bottom, center portion of screen.
