NanoCAD 1.0
A 3D wireframe object viewer/generator for the Newton MessagePad 2000 and eMate 300.
9/17/97

NanoCAD is a freeware application for viewing and creating simple wireframe 3D shapes.  You may rotate the default 3D shape (a cube) or create your own using the Extrude tool or the Lathe tool.  This version of NanoCAD requires a Newton MessagePad 2000 or eMate 300 (MessagePad 2000 recommended for best performance).

To use NanoCAD:
1) Install the "NanoCAD" application on your Newton device.
2) Tap on the NanoCAD icon in the Extras drawer to run the program.
3) The application will open with an empty screen and 3 main buttons.  Tap the "Reset View" button to display the default 3D cube.  Tapping inside the display window near one of the edges will rotate the 3D shape.  Hold the pen down for continuous rotation.
4) Tap the "Auto Rotate On/Off" button to toggle the automatic rotation mode on and off.
5) Tap the "Editor" button to pop up the Shape Editor window.
6) The "Clear Shape" button erases any existing shape (the main NanoCAD display will then begin using the default 3D cube again).
7) Tap on the graph paper window to create connected line segments.  The first tap creates a point, while subsequent taps create lines connecting each tap.  You need to create at least one line segment (a single point will not work) to create a shape.  Your shape does not need to form an enclosed polygon.
8) Tap the "Extrude Shape" button to generate a 3D representation of your shape.  This 3D shape will have depth (like cutting a cookie from dough).  Tap "Done" to exit the Editor and return to the main NanoCAD screen.  You can then tap "Reset View" to display and rotate your new shape.
9) Tap on the "Editor" button to enter the Shape Editor window again.  The graph paper window will be displaying the shape you created in Step 7 above.  Tap "Clear Shape" to erase the shape.  Create a new shape by tapping on the left or right side of the center vertical line.  (You may cross the center line, but for the purposes of this exercise, stay on one side or the other).
10) Tap the "Lathe Shape" button to generate a 3D representation of your shape.  This 3D shape will be created by spinning your shape around the center vertical axis to create a roughly cylindrical object.  Tap on "Done" to exit the Editor and return to the main NanoCAD screen.  You can then tap "Reset View" to display and rotate your new shape.

Hints:
* The fewer the line segments you make, the less complex your finished object will be.  Your object will then rotate much faster when displaying it.  A MessagePad 2000 is recommended for complex objects.
* Tapping the "Reset View" button will return the object to its non-rotated starting point.
* When Lathing an object, try these shapes:
     Tap out a triangle or square in the left half of the display away from the center line.  When you lathe the object, a doughnut like shape will be created.
     Tap out half the profile of an object like a glass, bowl or urn with the bottom segment touching the center line.  The lathed object will be a 3D version of the entire glass, bowl or urn.
     Tap out a curve starting at the top of the center line and curving away to touch the left (or right) middle edge of the screen.  Continue your curve, finally ending up at the bottom of the center line.  A spherical object will be lathed (like a globe).

Thanks for trying out this and my other Newton software!
Lee Moon
http://members.aol.com/LeeMoon/
LeeMoon@aol.com